Chevrolet OBD2 codes
Codes where we have reviewed, vehicle-specific evidence for this make.
Chevrolet has the most notes in our graph, all from GM bulletins and preliminary information. The main patterns are cam timing codes on V6 models, EVAP codes on trucks and small SUVs, lean codes from intake air leaks, and oil pressure and system voltage faults on recent models that should be treated as possible safety problems. Several bulletins are known only from NHTSA's summaries, so ask a dealer to check the full bulletin.
B0001 from corrosion in the air bag and harness
GM bulletin 21-NA-005 covers an airbag warning light with B0001 caused by corrosion, and replaces the air bag and its harness. The NHTSA summary lists 2020 to 2023 full-size trucks and SUVs among the vehicles covered. Because this is the airbag system, have it inspected by a dealer or qualified shop rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0012 with a damaged shorting bar in the airbag module
GM bulletin PIC5702 says B0012 with symptom byte 0E on the 2012 Cruze may come from a damaged shorting bar in the steering wheel airbag module. The same bulletin also names the Buick Verano. This is an airbag system, so have it inspected by a qualified shop rather than repairing it yourself. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0012 with an intermittent SIR light from a connector fault
GM bulletin SB-08-09-41-002C covers an intermittent SIR indicator with B0012 and other deployment loop codes on several 2005 to 2009 GM and Suzuki models. The summary names a loose, missing or broken connector as the cause. The airbag system is safety critical, so have it inspected by a qualified shop rather than working on it yourself. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0013 from air bag coil wires chafing on the horn plate
GM bulletin 14314 covers some 2008 to 2009 Chevrolet models and says the steering wheel air bag coil wires can chafe on the horn plate and set B0013. If a chafed wire grounds, the driver air bag may not deploy. The bulletin describes taping the wires or replacing the coil, but this is an air bag circuit, so have it inspected by a qualified shop rather than repaired at home. We read only the NHTSA summary of this bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0013 with the air bag light on, from a damaged shorting bar
GM bulletin PIC5702 says that on the 2012 Cruze and Verano, an air bag light with B0013 and symptom byte 0E may be caused by a damaged shorting bar in the steering wheel air bag module. We only read the NHTSA summary of the bulletin, not the bulletin itself. The air bag system is safety critical, so have it inspected by a qualified shop rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0013 with the SIR light on, cause not yet known
GM bulletin PIE-0118 is engineering information for 2010 to 2011 Malibu models with the SIR light on and B0013 stored. GM says the root cause was not yet known and engineering was still gathering vehicles before any repair. We only have the NHTSA summary, so we cannot say whether a repair followed. This is an airbag system, so have it inspected rather than repaired at home. This is labelled vehicle data rather than confirmed by bulletin.
B0013 with an airbag warning and a dead horn on a Silverado 1500
One 2018 Chevrolet Silverado 1500 owner told NHTSA that a shop read B0013 on a truck with a Safety Restraint System warning and a horn that stopped working. The scan described a steering wheel airbag circuit, which could fit a steering wheel coil fault. This is a single owner report, not a confirmed pattern, and it needs testing to confirm. Airbag systems are safety-critical, so have the vehicle inspected by a qualified shop.
B0014 from pinched wires at the seat recliner hinge
GM bulletin PIC-5186 links an airbag lamp with B0014 on the 2009 Impala to module wires that can be pinched or cut at the seat recliner hinge. This is an airbag fault, so have the seat wiring inspected by a qualified technician rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0014 from a broken wire under the driver's seat
An owner of a 2011 Malibu reports B0014 traced to a broken wire under the driver's seat. That points to the seat wiring as a place to have checked first. Because this is the airbag system, have it inspected rather than repairing it yourself. This comes from owner reports, not a bulletin, and has not been verified.
B0015 on a car with two pretensioners per front seat
GM bulletin PIC5396A says the 2009 to 2011 Impala has two seat belt pretensioners per front seat, one at the retractor and one at the belt anchor, and lists B0015 among the codes it covers. This matters when reading which pretensioner a code points to. Seat belt pretensioners are part of the air bag system, so have faults inspected by a qualified shop. We read only the NHTSA summary of this bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0015 from power seat wiring under the seat
GM bulletin PIT4898C says that on the 2010 Equinox, an inoperative driver power seat or an intermittent SIR light can come with B0015 stored and the power seat fuse open. The summary points to the harness under the seat touching the power seat motor. The SIR light is part of the air bag system, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0015 after seat belts fired with no collision
One 2012 Silverado 1500 owner complaint to NHTSA reports a seat belt that retracted hard with a bang and a burning smell at about 5 mph, with B0015 stored. The shop told the owner the control unit had logged a collision that did not happen. This is a single owner report, not a confirmed pattern, and it needs testing to confirm. Seat belt and airbag systems are safety-critical, so have the vehicle inspected.
B0026 from an open SIR coil in the steering column
An NHTSA owner complaint on a 2001 Chevrolet Impala says a dealer scan found B0026 as a frontal deployment loop fault, along with related left front deployment loop codes. The dealer found an open circuit in the SIR coil module and replaced it. Airbag faults are safety-critical, so have the system inspected rather than attempting repairs yourself. The source is owner reports, not a confirmed repair, so this is labelled vehicle data.
B0026 with the SIR light on, 2003 to 2006 full-size trucks and utilities
GM bulletin 05-09-41-001 covers the supplemental inflatable restraint (SIR) light on with B0026 on 2003 to 2006 Chevrolet and GMC full-size pickups and utilities. We only read the NHTSA summary, not the bulletin, so the repair is not known. This is an airbag system, so have it inspected rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0026 with the airbag light on, from a GM bulletin
GM bulletin 06-09-41-003 covers an SIR (airbag) light with a set of deployment loop codes, including B0026, on 2005 to 2006 Trailblazer, Envoy, Rainier and 9-7X models. We only read the NHTSA summary, not the bulletin, so we cannot say what the fix is. The airbag system is safety-critical, so have it inspected by a qualified shop rather than testing or repairing it yourself. It needs testing to confirm the cause, and we have not verified the bulletin is still current.
B0041 listed in a GM side impact module bulletin
A GM bulletin lists B0041 as side impact module codes behind an airbag light on 2000 full-size trucks. Only the NHTSA summary was read, and it names the codes without a fix. The airbag system is safety-critical, so have it inspected by a qualified shop rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0041 reported on a side airbag circuit
An NHTSA owner complaint on a 2000 Chevrolet Impala says a dealer read B0041 as an open left front side airbag deployment loop and said the left side airbag module needed replacing. Airbag work is safety-critical, so have the system inspected rather than repaired at home. The source is owner reports, not a confirmed repair, so this is labelled vehicle data and has not been independently verified.
B0041 from a worn seat connector
An owner complaint filed with NHTSA on a 2012 Corvette reports B0041 together with another airbag code, with intermittent opens to the driver seat pretensioner and side airbag. A technician found fretted terminals in a seat connector. This is an airbag circuit, so have it inspected by a qualified shop rather than repairing it yourself. The source is an owner report that has not been independently verified.
B0052 after a deer strike with airbags not deploying
A NHTSA complaint for a 2013 Silverado says the airbag light came on with B0052 and a deployment commanded after hitting a deer at 47 mph. The owner says neither the airbags nor the pretensioners deployed. Other Silverado owners report the code after a rear impact and once with no collision. No GM bulletin for it was found in our local data. The source is owner reports, not a bulletin. Airbag faults are safety critical, so have the system inspected by a qualified shop.
B0074 and B0081 with the airbag light on, where the sensor module and SDM should not be replaced
GM bulletin PI-0241 covers the airbag light on 2010 to 2011 Camaro with B0074 and B0081 stored alongside a related passenger presence code. It tells technicians not to replace the passenger presence (PPS) module or the airbag computer (SDM) for this fault. Because this is the airbag system, have it inspected by a qualified technician rather than replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0074 from a failed passenger presence module
An owner of a 2009 Chevrolet Equinox reports a dealer finding B0074 and saying the passenger presence module had failed internally. This is part of the airbag system, so have it inspected by a qualified technician. The source is a single owner report to NHTSA, not a bulletin.
B0081 airbag light from a communication fault
GM bulletin PIT-4874 covers the airbag (SIR) lamp with B0081 set on 2009 full-size trucks and SUVs, including the Silverado. It says the code usually comes from a communication fault, so connectors and splice packs are inspected before any module is replaced. This is an airbag system, so have it inspected by a qualified shop rather than working on it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0081 with the SIR light on the Cobalt
GM bulletin 08-09-41-006 covers the SIR (airbag) light on with B0081 stored on the Chevrolet Cobalt, and has the passenger presence system connectors inspected. This is an airbag system, so have it inspected by a qualified technician rather than unplugging or repairing connectors yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B0085 read as a side impact sensor fault
A NHTSA complaint for a 2010 Silverado 1500 describes a Service SRS message with B0085 read as a side impact sensor fault. The owner replaced the sensor without a fix, and the sensor wires opened when moved. The source is owner reports, not a bulletin. Airbag circuits are safety critical, so have the system inspected by a qualified shop.
B0085 with an open circuit in the driver door harness
An owner complaint on a 2015 Chevrolet Traverse says a shop found B0085 current and an open circuit inside the driver door harness. This is an airbag system, so have it inspected by a qualified shop rather than repairing it yourself. The source is owner reports, so it is labelled vehicle data rather than confirmed by bulletin.
B0085 with the SIR light on, per GM bulletin 4132
GM bulletin 4132 covers an SIR (airbag) light with B0085 on some Chevrolet and GMC models. The NHTSA summary we read names the codes but does not say what they mean on these model years or what the repair is. This is an airbag system, so have it inspected by a qualified shop. It needs testing to confirm. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B101D with the airbag light on
A NHTSA complaint for a 2015 Malibu says a dealer scan found B101D along with several chassis codes and said the airbag sensing module needed replacing. GM bulletins file this code under the OnStar module on the same models, so the module that stored it matters. The source is owner reports, not a bulletin. Airbag faults are safety critical, so have the system inspected by a qualified shop.
B101D stored in the telematics module
GM bulletin PIT5236J says vehicles with B101D stored in the telematics communication interface control module need campaign 14395 or 15086 completed, then GDS2 data and a call to GM Technical Assistance. Owner and dealer notes on some GM models mention OnStar being disconnected or a water-damaged module. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B1325 with lost power steering assist from the ignition coil module
GM bulletin 08-02-32-005 covers B1325 with lost power steering assist on 2004 to 2006 Malibu models with the 3.5L engine. The listed repair is replacing the ignition coil and module assembly and adding a ground strap. Power steering is safety-critical, so have it inspected by a qualified shop rather than repaired at home. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B2960 with a security lamp, stall or no start
GM bulletin 01-08-56-002A covers a security lamp, engine stall and no start with B2960 on 1999 to 2001 Silverado, Sierra, Tahoe and related trucks. If the security lamp is on when the truck will not start, look up this bulletin before replacing starting or fuel parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
B2960 with the security light on and no crank
GM bulletin 04-08-47-003 covers the security light coming on with the engine not cranking and B2960 stored on the 2000 to 2005 Impala and Monte Carlo. Owners quote the fix as repairing body control module terminal connections, so check those connections before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0035 behind an ABS or Stabilitrak warning
GM bulletin 3460D lists C0035 among the brake control module codes behind an ABS light on some GM trucks, and GM 16-NA-248 replaces a wheel speed sensor for intermittent Stabilitrak, traction and AWD disabled messages on some GM SUVs. We only have the NHTSA summaries. ABS and stability control are safety systems, so have the vehicle inspected rather than attempting repairs yourself. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0040 from the right front hub and speed sensor
An NHTSA owner complaint on a 2004 Chevrolet Colorado quotes a dealer invoice that found an intermittent open circuit at the right front hub and sensor for C0040, and replaced both. Owners also mention a GM bulletin for an ABS light with several wheel speed codes, which we have not read. This is an ABS part, so have it inspected by a qualified shop rather than repairing it yourself. This comes from owner reports to NHTSA, not from a manufacturer document, so treat it as owner-reported vehicle data.
C0045 with an ABS light from a wire pulled out of a connector terminal
GM bulletin PIT-4648-B covers an ABS light or Service Stability message with C0045 on 2008 to 2010 Express and Savana vans. It names a wire that has pulled out of a terminal crimp at one of two connectors. The brake system is safety critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0045 from a wire break inside the harness at connector X411
GM bulletin PIT5171B covers an intermittent Service Traction/Stability, ABS or AWD message with C0045 on 2010 to 2012 Equinox and Terrain. It names a wire break inside the harness at connector X411. One 2012 Equinox owner was told to replace a hub bearing assembly instead. ABS and stability control are safety systems, so have the vehicle inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0045 from oil at the rear wheel speed sensor
GM bulletin 01885 names oil at the rear wheel speed sensor as the cause of ABS codes including C0045 on the 2004 Malibu and Malibu Maxx. ABS is a brake system, so have it inspected by a qualified shop. We read only the NHTSA summary of this bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0050 with the ABS light on rear wheel speed sensor circuits
GM bulletins summarised by NHTSA tie C0050 to the ABS light with rear wheel speed sensor circuits, connectors, debris on the tone ring or module reprogramming. Row notes mention oil on a rear sensor and a wire pulling out of a connector on some vans. This is a brake system, so have it inspected by a qualified shop. We read only the NHTSA summaries. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0131 after a brake pressure modulator valve was replaced
GM bulletin PIC5704A says C0131 can set on vehicles that had the brake pressure modulator valve replaced, starting with the 2012 Sonic. The summary does not give the fix. This is a brake system, so have it inspected by a qualified shop rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0161 with faulty brake lights and cruise control
GM bulletin SB-08-05-22-009A covers intermittent brake lights, extra pedal travel to shift out of park and cruise control that does not work, with C0161 stored, on 2004 to 2009 mid-size cars. The ABS computer is flagging the brake pedal switch signal. The summary does not describe the repair. Brake system faults are safety-critical, so have the vehicle inspected before relying on it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0161 with a service stability message and brake light faults
GM bulletin PIT-5122C covers a service stability message, low power, and brake light and cruise faults with C0161 on 2012 to 2013 full-size trucks and SUVs. It says the 2012 models use a new dual brake pedal position sensor in place of the old open and closed brake switch. Brakes are a safety system, so have the pedal sensor and brake lights inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0186 and C0287 listed with a service stability light
A GM bulletin lists C0186 and C0287 among several codes that come with a service stability light on a 2006 mid-size SUV family. Only the NHTSA summary was read, and it lists the codes without a fix. The stability system is safety-critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0186 and C0550 from a chafed brake module harness
GM bulletin PIT-4756 covers ABS and StabiliTrak lights with C0186 and C0550 on 2007 to 2009 Equinox, Torrent and Vue. It says the cause can be the wire harness to the brake module chafing on the transmission mount or a metal bracket. Brake system faults are safety-critical, so have the vehicle inspected before relying on it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0186 with the airbag readiness light on
GM bulletin PI1525A pairs C0186 with an airbag code and the airbag readiness light on 2014 to 2015 Regal and Malibu cars. It is a diagnostic tips bulletin and the summary we read does not state a cause. Because the airbag light is on, have the car inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0196 after flat towing or carrier transport
GM bulletin PIC5436B links C0196 with a Service Stabilitrak message and a red brake lamp on the 2012 to 2013 Volt after the car was flat towed or came off a car carrier. The summary gives the fix as a multi-axis sensor learn, clearing the code, and a sleep and drive cycle. A red brake lamp is a brake warning, so have the car inspected if it stays on. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0196 from a corroded connector behind the fuel tank
A bulletin summary for 2010 to 2017 Equinox and Terrain traces C0196 and many related codes to corrosion in connector X411 behind the fuel tank. The fix it gives is replacing the terminals or connector. Check that connector for corrosion before replacing modules or sensors. The bulletin number is not shown. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0196 with an airbag lamp and related codes
GM bulletin PI1525 covers an airbag lamp that comes on with C0196 stored alongside other airbag and chassis codes on a 2015 Malibu. The NHTSA summary gives diagnostic tips but does not state a repair. Airbag faults are safety-critical, so have the system inspected rather than attempting repairs yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0265 from a poor ground connection
GM bulletin 01737A names a poor ground connection as the cause of C0265 on 2003 to 2004 Silverado and Sierra trucks. Check the ground connections and their cleanliness and tightness first. We only read the NHTSA summary of the bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0265 with other brake module codes and lost communication
A GM bulletin ties C0265 to an ABS light and lost communication with the brake module on 1999 to 2006 full-size trucks and SUVs. A companion record says the fix is to reground the EBCM ground. The brake system is safety-critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0277 with intermittent brake lights and no cruise
GM bulletin SB-08-05-22-009A covers intermittent brake lights, long travel to shift out of park, and cruise control that does not work, with C0277 set. It applies to 2005 and later Chevrolet, Pontiac and Saturn models. We only read the NHTSA summary. Brake lights are a safety item, so have the brake light circuit inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0287 with an intermittent traction off lamp
GM bulletin 030525002 covers an intermittent traction off lamp with C0287 on 2000 to 2002 full-size SUVs. The NHTSA summary gives no cause, so there is no confirmed fix to point to. Have the traction and brake system inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0287 with an intermittent ABS light on hybrids
GM bulletin PIC-4936 covers an ABS light that comes on intermittently with C0287 on the 2009 hybrid Malibu and Aura. The NHTSA summary gives no cause. Brake system faults are safety-critical, so have the vehicle inspected before relying on it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0287 and a damaged X411 connector
GM information bulletin PIT5427B covers service lights with C0287 and other codes on 2010 to 2017 Equinox and Terrain models. It says to inspect the X411 connector for damage or corrosion and replace damaged terminals. Check that connector before replacing any sensor or module. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0455 from the steering angle sensor connector
GM bulletin PI0639C covers a Service Stabilitrak message with C0455 on 2007 to 2016 trucks and SUVs. The summary names the steering angle sensor connector, with dielectric grease and shim stock as the fix. Steering and stability systems are safety-critical, so have the vehicle inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0455 with an ABS light then a Service Stability message
GM bulletins PIT4225F and 3599 cover an ABS lamp followed by a Service Stability message with C0455 on full-size GM trucks and SUVs. The bulletin notes that the steering wheel must be properly installed on the shaft. One repairer reported a faulty sensor and the part being unavailable in 2021. Steering and brake systems are safety critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0545 from sudden loss of power steering assist
Recall 14V-153 covers sudden loss of electric power steering assist on 2004 to 2009 Malibu models except 2007, and the Pontiac G6 and Saturn Aura share these columns. Loss of assist makes steering harder, especially at low speed, and the remedy replaces the torque sensor, motor or control module as needed. Steering is safety critical, so check your VIN for an open recall and have it inspected by a dealer. We read this recall from a third-party recall mirror, so this is labelled vehicle data rather than confirmed by the manufacturer.
C0545 with a Service Power Steering message
GM bulletin PIT5437B covers a Service Power Steering message on the 2015 Colorado and Canyon. For C0545, it calls for replacing the power steering gear. Steering faults should be inspected by a qualified technician, not repaired at home. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0550 from the transfer case control module
GM bulletin 03-04-21-006 covers a service 4WD light and an inoperative 4WD system with no communication with the transfer case control module, with C0550 set. The bulletin says the transfer case control module sets this code on these 2004 4WD SUVs. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0550 cleared by an EBCM reprogram
A GM bulletin says to reprogram the EBCM when C0550 sets with a service message on 2003 Yukon, Escalade and Avalanche trucks. Only the NHTSA summary was read. The brake system is safety-critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0550 among power steering codes
GM bulletin 07-02-32-007 lists C0550 among the codes for a power steering that is inoperative or hard to turn on the Ion, Cobalt, HHR and G5. It gives diagnostic tips for a power steering message. We only read the NHTSA summary. Steering is safety critical, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0550 with the tire pressure light on
GM bulletin PIC-4955A covers the tire pressure monitor light with C0550 on the 2008 to 2009 Aveo. It says a defective tire pressure sensor can be one of the causes, so check the sensors first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C056D after a loss of power steering assist
An NHTSA owner complaint on a 2018 Chevrolet Volt reports a dealer finding C056D and citing a GM bulletin after the car lost power steering assist. We have not read that bulletin. This is a steering system, so have it inspected by a qualified shop rather than repairing it yourself. This comes from owner reports to NHTSA, not from a manufacturer document, so treat it as owner-reported vehicle data.
C0710 with false traction control at low speed
GM bulletin 08-05-25-001 ties C0710 to false traction control activation at low speed on 2008 Chevrolet Express vans with RPO JL4. The fix it gives is reprogramming the electronic brake control module. This is a braking and stability system, so have it inspected by a shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0710 with a Service Stabilitrak message and the steering angle sensor connector
GM bulletin PI0639C covers a Service Stabilitrak message with C0710 on the 2012 Suburban. It applies dielectric grease and adhesive shim stock to the steering angle sensor connector. This is a steering and stability system, so have it inspected by a shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0800 with a radio that cuts in and out
GM bulletin PI1398 covers a radio turning on and off with an intermittent check engine light and C0800, on 2012 to 2014 Cruze. A Cruze owner also saw Check StabiliTrak. Only the NHTSA summary was read and the repair is not stated. Brake and stability faults are safety-critical, so have the system inspected rather than attempting repairs yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C0800 with a service power steering message, 2011 to 2013 Volt
GM bulletin PIC-5667 covers a service power steering message with C0800 on the 2011 to 2013 Chevrolet Volt. We only read a one-line summary, so the repair is not stated. This is a steering system, so have it inspected rather than repairing it yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C1221 with wheel speed sensor input signals reading zero
Owner complaints on 2001 and 2002 Chevrolet Impala quote a scan readout of C1221 with wheel speed sensor input signals at 0 and the ABS light on. In one case it began after wheel bearings were replaced. We found no Chevrolet bulletin naming these codes in our extract. This is a brake system, so have it inspected by a qualified shop. The source is owner reports, so it is labelled vehicle data rather than confirmed by bulletin.
C1226 in the wheel speed variation diagnostic tables
GM bulletin 01-05-25-006 revises steps 13 and 15 of the excessive wheel speed variation diagnostic tables in the ABS section of the service manual. It covers 1998 to 1999 Venture and related GM minivans. Only the NHTSA summary was read, so we do not know more of what it says. ABS is a safety system, so have it inspected by a qualified technician. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C1226 reported with front wheel speed sensor variation
A 2002 Impala owner complaint to NHTSA lists C1226 as a front wheel speed sensor variation code, alongside other front wheel speed sensor circuit codes. Wheel speed sensors feed the ABS, so have the brakes inspected rather than repaired at home. The source is a single owner report, and only the complaint text was read, so this is labelled vehicle data rather than confirmed by bulletin.
C1233 from a worn front wheel bearing
GM bulletin 032503 covers front wheel bearing replacement when the ABS, traction control or service engine soon light is on with front wheel speed sensor codes, including C1233, on 2001 to 2003 models. It lists several Chevrolet, Buick, Pontiac and Oldsmobile models. We read only the NHTSA summary. ABS is a safety system, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
C159C with a Service Trailer Brake message
GM preliminary information PIT5948B says that when a trailer is connected, a Service Trailer Brake message can show in the driver display and C159C may be set for the trailer brake control switch. It covers 2022 to 2023 Silverado 1500 and Sierra 1500, and owners report the same. The summary says GM engineering is looking into it. Trailer brakes are a safety system, so have the truck inspected before towing. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0008, P0018 and P0019 from timing chain stretch on the 3.6L V6
GM bulletin 12-06-01-009F ties P0008, P0018 and P0019 on the 2007 to 2012 3.6L High Feature V6 to a stretched timing chain and supplies a chain kit. GM says the cam actuators and sprockets normally do not need replacing for this, so check the oil level and condition first, then have the chain measured. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
- P0008: Engine position system performance, bank 1: the crankshaft-to-camshaft timing relationship has drifted out of range
- P0018: Crankshaft and camshaft positions do not agree on bank 2, sensor A
- P0019: Crankshaft-to-camshaft correlation, bank 2 camshaft B: the bank 2 exhaust camshaft signal is out of step with the crankshaft
P0009 from timing chain stretch on the 3.6L V6
GM bulletin 12-06-01-009F ties P0009 on 3.6L V6 engines from 2007 to 2012 to stretched timing chains and offers chain kits and chain guide replacements. Check the oil level and condition first, and have the chain checked before other parts are bought. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0010 from a broken wire inside the cam actuator solenoid
GM special coverage 15824 covers P0010 on the 2013 Malibu and ATS with the 2.0L or 2.5L engine, caused by a broken wire inside the cam actuator solenoid. Ask a dealer whether the VIN is covered before paying for the repair. Summary only; full bulletin not reviewed.
P0013 from a broken wire inside the cam actuator solenoid
GM special coverage 15824 says a wire can break inside the exhaust cam actuator solenoid and set P0013 on some 2.0L and 2.5L engines, including the Malibu. Ask a dealer to check the VIN for the coverage before buying a solenoid. We have not confirmed the coverage is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0013 from failed cam actuators on the Equinox and Terrain
GM bulletin 17-NA-098 says rough running, hesitation, hard starting or stalling with P0013 and other cam codes on the 2010 to 2012 Equinox and Terrain can come from camshaft actuator failure, and GM replaces both actuators. Check the oil level and condition first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0016 and P0017 from timing chain stretch on the 3.6L V6
GM bulletin 12-06-01-009F ties P0016 and P0017 on the 3.6L V6 to a stretched timing chain and supplies a chain kit. GM says the cam actuators and sprockets normally do not need replacing for this, so the chain should be measured before cam parts are bought. Check the oil level and condition first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0016 or P0017 with correct timing marks: check the cam reluctor
GM preliminary information PIP4548E says that if P0016 or P0017 sets but the timing marks line up, the camshaft reluctor may have spun on the camshaft, in which case the camshaft is replaced. It is a diagnostic lead rather than a recall, and the record we read did not state which engines it covers.
P0016 that normal tests cannot explain: crank reluctor indexing
GM preliminary information PIP5183 says that on 2014 trucks, if P0016 cannot be isolated with normal tests, the crankshaft reluctor wheel indexing should be checked before parts are replaced.
P0024 from a sticking exhaust cam actuator solenoid valve
GM special coverage 16115 says P0024 on the 2014 Impala and LaCrosse can come from a sticking exhaust camshaft position actuator solenoid valve, and dealers replace the valve at no charge. Check eligibility with a dealer before paying for the repair. We have not confirmed the coverage is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0036 with wiring chafed on the A/C hose coupling
GM bulletin PIT5336 lists P0036 among oxygen sensor heater and sensor codes on the 2013 to 2015 Enclave, Traverse and Acadia. It points to engine harness wires to the bank 1 oxygen sensor that are chafed on the A/C hose coupling, and to a possible open Emission 1 fuse. Related GM summaries for some older models mention the powertrain relay, or give no repair at all, and those older entries need testing to confirm. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P003A from a chafed turbo vane sensor wire
GM bulletins PIP-4629 and PIP-4636 list P003A on the 2004 to 2009 diesel Express and Savana vans. PIP-4636 points to a wire that has chafed at the turbo vane position sensor. We only read the NHTSA summary of the bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P003A with turbo boost control position not learned
One 2006 Silverado 3500 Duramax owner complaint describes P003A as the turbocharger boost control position not learned, appearing from new alongside another boost code. It is a single complaint. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P0046 from an engine computer software anomaly
GM bulletin PIP5614 says P0046 may be caused by a software anomaly in the engine control module, fixed by updating the module. It covers 2018 Silverado 1500, 2500 and 3500 and Sierra 3500 trucks. The bulletin is preliminary information and we only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0068 with air flow and lean codes on the Malibu
GM PIP5529 gives extra diagnostics for P0068 when it sets together with air flow, manifold pressure and lean codes on the 2013 to 2017 Malibu. The bulletin also lists Buick, Cadillac and GMC models. Look at all the stored codes together instead of treating one code on its own. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0088 from metal debris in the Duramax fuel system
GM bulletin PIP4949E covers hard or no starts with P0088 on 2010 to 2015 Duramax diesel heavy-duty trucks and vans. If diagnosis points to the injection pump, GM says to inspect fuel pressure regulator 1 for magnetic metal debris, and if it is found, replace the listed parts and clean and flush the fuel system, tank and sender. After fuel or engine work, also check for swapped rail pressure sensor plugs. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0089 with fuel pressure codes on GM trucks
GM bulletin PIP5279A covers the service engine soon light with P0089 and other fuel pressure codes on 2014 to 2016 GM full-size trucks and SUVs. GM says to follow service information first, and replace the fuel rail pressure sensor if that does not find the fault. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0089 from the high-pressure fuel pump connector
GM bulletin PIP6061 links P0089 on the 2024 to 2025 Traverse, Acadia and Enclave to the high-pressure fuel pump connection. It says to inspect the connector terminals, move the harness to look for the fault, and repair the wiring as needed. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0089 after engine work from the wrong camshaft parts
GM bulletin PIP5203 says P0089 with the service engine soon light on 2010 to 2011 Equinox, Terrain, LaCrosse and Regal could be due to an incorrect intake camshaft or camshaft actuator sprocket. If the engine has had recent work, check that the right parts were fitted first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0090 from a poor connection at the high pressure fuel pump
Chevrolet bulletin PIP6061 says a poor electrical connection at the high pressure fuel pump may set P0090 and related fuel codes on the 2024 to 2025 Traverse, with Buick Enclave and GMC Acadia also listed. The preliminary advice is to inspect and wiggle the harness and repair the connector or terminals as needed. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0091 with a high pressure fuel pump replaced
A 2020 Chevrolet Traverse owner complaint to NHTSA reports P0091, named by an independent mechanic as a fuel pressure regulator control circuit low fault, with the high pressure fuel pump replaced. Other owners also report the pump replaced or internally faulty. These are owner reports, not a bulletin, and are not verified by NHTSA.
P0097 with diagnostic tips for related air intake codes
GM bulletin PI1009 is a preliminary informational bulletin with diagnostic tips for P0097 and several related air intake codes on 2013 to 2014 Equinox and related GM models. The NHTSA summary does not state a cause or repair. A 2013 Equinox owner reports these codes together. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0097 with hesitation and stalling
GM bulletin 17-NA-171 covers hesitation, stalling and many codes, including P0097, on the 2017 Silverado and Sierra. GM says an anomaly in the engine and transmission control modules may cause it, and to update both to the latest software. If both are current, service information is the next step. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P00B7 in NHTSA owner complaints
NHTSA owner complaints name P00B7 on several makes and models. They describe causes such as a stuck thermostat, a faulty thermostat and housing, a damaged sensor connector, and in one case an engine computer update under a Volkswagen bulletin. These are owner accounts, not diagnoses, and each is one owner report, so they need testing to confirm. The source is owner reports.
P00C6 with an intermittent crank no start
GM bulletin PIP5130J covers an intermittent crank no start with P00C6 on 2014 to 2018 V8 trucks and SUVs. The camshaft actuator solenoid valve can stick or bind and retard the valve timing, and the dealer cycles the solenoid with a scan tool. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P00C6 and P228C from loose engine computer terminals
GM bulletin PIP5209C says P00C6 or P228C can set on 2010 to 2015 3.0L and 3.6L direct-injection models with as little as 2 ohms of resistance, so check the fit, tension and crimps of the engine computer terminals for the rail pressure sensor and high-pressure pump. Our notes say that if the code persists, GM replaces the high-pressure pump and inlet line and checks the fuel. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P00C6 and P228C from loose high-pressure pump or fuel rail fasteners
GM service update 16029 says the high-pressure pump or fuel rail fasteners on some 2016 Camaro, CTS and XT5 and 2017 ATS models may not have been tightened correctly at the factory. Fuel could leak and the car can go into reduced power with P00C6 and P228C. A fuel leak is a fire risk, so have it inspected promptly. We have not confirmed the update is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P00FF with a service engine soon light after a module code
GM PIT6281 covers a service engine soon light on some 2025 full-size SUVs with a body control module code and P00FF set in the engine module. The summary says dealers clear the codes and, if necessary, run the Serial Data Authentication Configuration procedure. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0101 and P0171 from a cracked air cleaner outlet duct
GM bulletin GCUS-9-3731 says a cracked air cleaner outlet duct after the MAF sensor on 2012 to 2014 Sonics lets in unmetered air and can set P0101 or P0171, and GM covers the duct replacement. Check the duct for cracks before replacing sensors. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0106 from an erratic MAP sensor signal
GM bulletin N212330660 covers an erratic MAP sensor signal setting P0106 on some 2021 full-size trucks and vans, fixed by replacing the MAP sensor. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0107 and an engine harness that may be shorting
GM bulletin PIT5677A has dealers inspect the engine harness for shorting on the 2019 Silverado 1500. Only the NHTSA summary was read, and it does not say which codes or parts are involved beyond that. Look over the engine harness for chafing or damage before replacing sensors that set P0107. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0107 with a reduced engine power message
GM bulletin 3192 lists P0107 among several codes that come with a reduced engine power message or check engine light on some Chevrolet models. The NHTSA summary gives no cause, so check for stored companion codes first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0112 with the Service Engine Soon light on
Chevrolet bulletin 020603005 covers a Service Engine Soon light with P0112 stored, along with two other codes, on the 1997 to 2002 Malibu. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0117 with a coolant sensor and housing replacement
A 2011 Cruze owner complaint reports P0117 stored and the coolant thermostat sensor and housing needing replacement. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P011A on diesel vans with two coolant sensors
GM bulletin PIP-4660 lists P011A on some 2007 and 2008 GM diesel vans and trucks, which have two coolant temperature sensors. The service engine soon light may come on with the related coolant sensor codes. The summary we read does not give a repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0120 with reduced engine power
GM bulletin 3040 covers a service engine soon light or reduced engine power with P0120 set on 2003 Silverado, Avalanche and Suburban models. GM calls the fault normally very intermittent, so check wiring and connectors for an intermittent fault first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0121 with idle surge and reduced power on high-mileage vehicles
GM bulletin PIP4578B lists P0121 with idle surge and reduced engine power on high-mileage trucks and cars, alongside other throttle codes. We only read the summary, not the bulletin text. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0122 and P0222 from an engine harness rubbing on the cylinder head
GM bulletin PI-0220 says the check engine light with P0122 and P0222 and other codes on the Acadia, Enclave and Traverse can come from the engine harness rubbing on the bank 2 cylinder head. Inspect that harness for chafing before replacing sensors. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0131 as a lean-limit oxygen sensor code with a catalyst code
GM bulletin 08-06-04-027 treats P0131 as an oxygen sensor lean-limit code that appears with a catalyst efficiency code on the Aveo 1.6L. Only the summary was read, so check for a lean condition before replacing the catalytic converter. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0131 from O2 sensor wiring chafing on the A/C hose
GM bulletin PIT5336 links O2 sensor and heater codes, including P0131, on the Acadia, Enclave and Traverse to the bank 1 O2 sensor harness chafing on the A/C hose coupling. Inspect that harness for rubbing before replacing the sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0134 in a Chevrolet bulletin on the Service Engine Soon light
Chevrolet bulletin 3070 covers the Service Engine Soon light with a group of oxygen sensor codes that includes P0134 on the 2002 Cavalier. Only the NHTSA summary was read, and it does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0138 with start/stop and hesitation concerns
GM bulletin 19NA077 gives repair information for P0138, alongside a related oxygen sensor code, on 2018 and 2019 Equinox models that also have start/stop or hesitation complaints. Ask a dealer to check it before replacing the sensor. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0146 and a revised diagnostic entry
GM bulletin 030604051 is a revised diagnostic entry for P0146 (HO2S circuit insufficient activity, bank 1 sensor 3) on the 1997 Astro. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0155 from incorrect O2 sensors and wiring harness
GM bulletin 3322 links O2 sensor heater circuit codes, including P0155, to incorrect O2 sensors and wiring harness on 2004 trucks. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P015B with a check engine light or reduced power message
GM communication PIP-5402 gives diagnosis steps for P015B or a reduced engine power message on the 2013 to 2016 Malibu. We only read the NHTSA summary, which does not say what the fix is. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P015B with the MIL on in Cruze models
GM bulletin 17-NA-155 covers the MIL on with P015B set on 2016 to 2017 Cruze. A 2012 Cruze owner also reported the code with a lean code and shuddering, and that car was not repaired. The NHTSA summary does not give the repair. This needs testing to confirm, and we have not confirmed the bulletin is still current.
P0161 from wrong O2 sensors or wiring harness
GM bulletin 3322 names incorrect O2 sensors and wiring harness as the cause of heater circuit codes including P0161 on 2004 trucks. We only read the NHTSA summary. Check that the right sensors and harness are fitted before replacing parts again. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0171 and P0174 from a loose PCV tube
GM bulletin N192273400 says that on some 2020 Silverado 1500s the right-hand PCV tube may not be fully seated, causing an air-leak whistle and setting P0171 or P0174. Check that the tube is seated before chasing other lean causes. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0172 and P0175 with rough running: high-pressure fuel pump
GM bulletin PI-0145 says that on some 2010 direct-injection models, including the Equinox, P0172 and P0175 together with rough running led to the high-pressure fuel pump after diagnosis. Fuel pump work is a shop job. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0181 with no repair yet from GM engineering
GM PIP5471 covers a check engine light with P0181 on the 2016 Colorado. The summary says to follow published service information diagnostics first, and that GM engineering is aware and working on a correction if those do not isolate a cause. It gives no repair, so the cause needs testing to confirm.
P018B with hesitation or stalling in hot weather
GM bulletin PIP5411A lists hesitation or stalling at 100 F or higher with P018B on 2015 to 2016 Tahoe, Suburban, Yukon and Escalade models. GM said it was working on a solution, and the summary gives no repair. Note whether the problem only appears in hot weather. We read only the cached summary, and we have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P018C with an engine harness that may be shorting
Chevrolet bulletin PIT5677A is preliminary information that directs dealers to inspect the engine harness for shorting on 2019 Silverado 1500 trucks with no-start, rough running, reduced power or blown fuse complaints. It names P018C. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0191 and stalling from a non-original fuel pump on the Equinox
GM bulletin PIP6113 covers stalling with P0191, sometimes with a rich code, on 2010 to 2017 Equinox and related models. Check the high-pressure fuel pump markings to confirm it is an original part; if it is not, install one and re-check. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
Intermittent P0191 from fuel pressure harness connections
GM bulletin TB-09-06-04-022 links intermittent P0191 and slow fuel rail pressure decay on 2006 to 2009 Express vans and related GM trucks to wiring harness connections and voltage interruptions, so check the harness connections first. On later vans, our vehicle notes link hard or no start to fuel contamination. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0192 and P228C and the fuel rail pressure sensor
GM bulletin PIP5279A covers the service engine soon light with P0192 and P228C and other fuel pressure codes on 2014 to 2016 full-size trucks and SUVs, the Corvette and the CTS. GM says to follow service information first, and if that finds nothing, replace the fuel rail pressure sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0200 with injector or misfire codes
An NHTSA bulletin summary (record 10032392) covers a check engine light or misfire with a range of injector codes or misfire codes, which includes P0200, on the 2010 Camaro. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0201 and P0203 among injector and misfire codes
GM bulletin PIP4924C is preliminary information about a service engine soon light and misfire, and it lists P0201 and P0203 among many injector and misfire codes. The vehicle notes apply it to the 2009 to 2015 Traverse and 2009 to 2010 Outlook. Check for a misfire and look at the injector and its wiring first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0202 fixed by an injector and wiring harness replacement
GM bulletin 22-NA-087 covers a check engine light with P0202 on the 2021 Suburban 1500 and names replacing the fuel injector and wiring harness. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0204 and P0207 from an injector driver circuit concern
GM bulletin 060604026 covers an intermittent light and reduced power with a fuel injector driver circuit concern, with P0204 and P0207 on 2004 to 2005 trucks. We only read the NHTSA summary, so check the injector wiring and connectors first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0204 from a fuel injector and wiring harness
GM bulletin 22-NA-087 replaces the fuel injector and wiring harness for injector circuit codes such as P0204 on some Chevrolet trucks. Check the injector circuit and harness first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0205 and the engine wiring harness
GM PIT5751 is preliminary information that tells dealers to inspect the engine wiring harness for damage when the check engine light shows P0205 on 2020 to 2021 trucks and SUVs. The vehicle note adds that bulletin 22-NA-087 replaces the injector and wiring harness for these codes. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0206 and a wiring harness inspection on 2020 to 2021 GM trucks
GM preliminary information PIT5751C covers the service engine soon light with a run of injector circuit codes, including P0206, on the 2020 to 2021 Silverado 1500, Suburban and Tahoe. It tells the dealer to inspect the engine wiring harness for damage. We have only read the NHTSA summary and have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0207 with reduced power on paired cylinders
GM bulletin 05-06-04-047 covers reduced power with P0207 on 2004 to 2005 Silverado and related trucks. Only the NHTSA summary was read, and it lists the codes without a fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0208 with a Service Engine Soon light or misfire
Chevrolet bulletin PIP-4673 covers a Service Engine Soon light and/or engine misfire with a range of injector circuit and misfire codes, including P0208, on the 2010 Camaro. It was updated 6/6/11. The NHTSA summary does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0208 as a fuel injector driver circuit code
GM bulletin 3238C covers fuel injector driver circuit codes, including P0208, on 2004 to 2005 models, and the summary says this includes LLY engines. It does not give the repair. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0216 fixed by replacing the injector and wiring harness
GM bulletin 22-NA-087 gives a procedure to replace the fuel injector and wiring harness when the warning light is on with injector circuit codes including P0216. It covers 2021 to 2022 trucks and SUVs. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0220 with a check engine light and no drivability complaint
GM bulletin 030604032 covers a check engine light with no drivability concerns and throttle or pedal position codes including P0220, on 2003 Silverado 1500 and related GM trucks. We read only the NHTSA summary, not the document itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0230 with a service engine light and no performance concerns
GM bulletin 3642 covers a 2006 service engine soon light with P0230 and no performance concerns, and its title says to replace the ECM. A 2007 Cobalt owner had the code return after two relay replacements, with intermittent power loss. Only the NHTSA summary was read. The link needs testing to confirm, and we have not confirmed the bulletin is still current.
P0236 from charge air cooler icing in extreme cold
Chevrolet bulletin 22-NA-007 gives procedures for poor performance in very cold weather caused by charge air cooler icing, with P0236 among several codes. It covers the 2016 to 2019 Cruze and is also issued for the Buick Encore GX. Note whether the code appears only in extreme cold. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0237 with reduced power from a damaged turbo inlet pipe
GM bulletin PIP5927E says a damaged charge air inlet pipe connection at the turbocharger can cause reduced power with P0237 on 2023 to 2026 Equinox and Terrain. It is preliminary information, and we read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
Diagnosing P0265 together with a misfire code
An NHTSA bulletin summary (record 10083141) covers the diagnosis of a cylinder injector circuit code, including P0265, together with the general misfire code. Our notes cover some 2016 to 2017 GM models. We only read the cached summary, not the bulletin itself, so the cause and any fix are not known to us. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0299 on the L3B engine: service calibration
GM bulletin 23-NA-045 issues a service calibration for P0299 on 2022 and 2023 Silverado 1500s with the L3B engine. Ask a dealer whether the update has been done before replacing turbo parts. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0300 in wet weather from charge air cooler condensation
GM preliminary information PIP5511 says P0300 with a flashing light on 2018 models, when accelerating after a long steady drive in rain or humid weather, comes from condensation in the charge air cooler. GM advises against replacing parts for it. A flashing light still means stop until it is diagnosed.
P0307 and P0308 that service information does not isolate, with valvetrain and lifter wear
GM PIP4138R covers P0307 and P0308 on 2002 to 2018 GM vehicles, mostly V8 trucks, SUVs and cars, where published diagnostics do not find the cause. It says to check for a worn cam lobe or lifter roller, a sticking or leaking valve, a broken valve spring, and a collapsed Active Fuel Management lifter. Check coils and plugs first, then ask the shop about the valvetrain. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0315 on the 2023 Corvette
GM bulletin PIP5939 says the 2023 Corvette may set P0315 erroneously and that a software update is to follow. A second bulletin, 24-NA-023, is a repair bulletin for the same code, but its summary gives no detail. We read only the NHTSA summaries. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0324 from oil squirters touching the pistons
GM bulletin PIP5149 links P0324 on some 2014 Silverado and Sierra 1500 trucks to piston oil squirters that touch the pistons. This is an internal engine fault, so have a dealer inspect it rather than attempting it at home. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0324 with a rattle or spark knock noise on the Spark
GM PIP5251 covers P0324 on the 2014 to 2015 Spark, current or in history, sometimes with a rattle or spark knock noise. It sets out a test that watches knock retard over seven cycles in Drive after a cold soak. A shop can use it to decide whether further work is needed. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0324 fixed by an ECM reprogram
GM bulletin 24-NA-064 says P0324 on some 2024 Chevrolet models can be fixed with an ECM reprogram. Ask a dealer about the update before replacing parts. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0327 from an inverted knock sensor
GM bulletin 050604052 gives information on an inverted knock sensor with P0327 on 2005 Uplander, Terraza, Montana and Relay vans. We read only the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0331 and knock sensor service calibration
Chevrolet bulletin 24-NA-180 gives repair information for knock sensor service calibration codes including P0331 on the 2015 to 2024 Colorado. Related bulletins cover a possible connection concern at the knock sensor connector X160 (PIP5985), an emerging issue (PIP5836A), a check engine light with misfire, rough idle or a cruise engagement bump (PIP5303B), and a lamp with the code set in history (PIP5273). Only the NHTSA summaries were read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0331 on the 2019 to 2022 Camaro
Chevrolet bulletin PIP5836A gives preliminary information on a possible emerging issue and recommendations for P0331. A related bulletin, PIP5773B, covers an inspection without replacing parts while engineering investigates knock sensor 2 performance. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0332 with engine ping during acceleration
GM bulletin 02-06-04-023 covers mild to severe spark knock on acceleration, with or without P0332, on 1998 to 2002 trucks and cars including the Silverado 1500, Suburban, Avalanche, Camaro and Corvette. Ask a dealer to check the bulletin; the summary does not give the repair. Summary only; full bulletin not reviewed.
P0332 from a knock sensor installed upside down
GM bulletin 05-06-04-052 says a knock sensor fitted upside down can set P0332 on the 2005 Uplander. Check the sensor's orientation before replacing it. Summary only; full bulletin not reviewed.
P0333 that sets when shifting from park
GM bulletin PIP5576 says P0333 on the 2014 to 2018 Silverado 1500 can set when shifting from park, because voltage from the transmission park and neutral signal circuit bleeds into the knock sensor circuits. If the information system does not isolate it, the bulletin says to inspect the ECM X2 connector for debris or terminal problems. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0335 with a crank-no-start or rough running
GM bulletin 3808 covers a crank-no-start, rough running or P0335 on 2007 and 2008 full-size trucks with the 5.3L, 6.0L or 6.2L V8. A no-start or stall can leave you stranded, so have it diagnosed promptly and ask a dealer to check the bulletin; the summary does not give the cause. Summary only; full bulletin not reviewed.
P0335, P0340 and P0341 with stalling or rough running
GM bulletin 4137 covers stalling or rough running with P0335, P0340 or P0341 or related crank and cam sensor codes on the 2006 Impala and Monte Carlo. Stalling is a safety risk in traffic, so have it checked promptly and ask a dealer to check the bulletin; the summary does not give the cause. Summary only; full bulletin not reviewed.
P0358 on the 2014 Silverado 1500
Chevrolet bulletin PIP5147A covers a service engine soon lamp with a misfire code and a run of ignition coil circuit codes including P0358 on 2014 Silverado 1500 trucks. The summary does not give a cause or repair. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0358 that may be mislabeled
Chevrolet bulletin 01772A says the ignition circuit codes in this range are mislabeled on the 2004 Colorado, so the code shown on the Tech 2 may not reflect the actual ignition circuit, coil or module, or where the problem is detected. That includes P0358. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0365 from a harness short at the cam cover
GM bulletin 18-NA-307 says lack of power, reduced power, rough idle or the StabiliTrak light with P0365 and other cam and sensor codes on the 2015 to 2022 Colorado and Canyon can come from a wiring harness short at the camshaft cover or cylinder head. Inspect that harness before replacing sensors. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0380 with a no-charge condition
GM bulletin 01927 covers a no-charge condition with P0380 and one other code on 2001 to 2004 models, listed here for the Silverado 1500. The summary does not give the repair. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0381 under investigation on 2024 to 2025 Silverado HD
Chevrolet bulletin PIP6090 says P0381 is under investigation on the 2024 to 2025 Silverado 2500 HD and 3500 HD. It tells technicians to clear the code and return the vehicle to the customer. We have only read the NHTSA summary and have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0403 with the light on, Cruze and Equinox
Chevrolet bulletin PIE0489A is GM engineering information about P0403 on the 2017 and 2018 Cruze, Equinox and 2018 GMC Terrain. The summary only says it ends the need for field information, so it gives no repair. Do not read it as a known fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0410 from water in the air pump
GM bulletin 776513 ties P0410 and water in the air pump to an air pump service kit on 1994 to 1996 Impala and Caprice models and the 1995 Roadmaster. Check the air pump and its plumbing for water first. We read only the one-line cached summary, and we have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0411 with an intermittent service engine soon light
GM preliminary information PIP-4361B covers an intermittent service engine soon light from P0411 and an oxygen sensor code on some 2008 GM midsize trucks and SUVs. The summary gives no cause, so normal diagnosis still applies. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0422 on the 2024 6.6L diesel
GM bulletin PIP5917, with bulletin 24-NA-058, covers P0422 on 2024 heavy duty trucks with the 6.6L L5P diesel. The NHTSA summaries we read do not give the repair, so we cannot say what causes it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0442, P0446, P0449 and P0455 from dust in the canister and vent
GM bulletin 23-NA-073 links P0442, P0446, P0449 and P0455 on 2019 to 2025 full-size trucks to dust plugging the canister and vent solenoid in very dusty use. It explains why several EVAP codes can appear together on these trucks and why a new gas cap alone may not fix them. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0442 from a canister weld leak
GM bulletin 22-NA-217 links P0442 on some 2021 and 2022 small SUVs to a weld leak in the purge canister, found by smoke testing the canister. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0442 from a vent solenoid that leaks only under vacuum
GM bulletin PI0979 says that on 2011 to 2013 Cruze and some related models, P0442 can come from a vent solenoid that leaks under vacuum yet passes a pressure test, so a normal smoke test can miss it. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0451 from water blocking the fuel tank pressure sensor port
GM bulletin SB-10-06-04-001 links P0451 and EVAP leak codes on 2009 and 2010 Silverado 1500s, and other listed GM models, to water or condensation blocking the fuel tank pressure sensor's air reference port, fixed with a sensor cover. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0453 and a fuel tank pressure sensor module replacement
GM bulletin TB-09-06-04-024 lists P0453 among several EVAP codes on 2008 to 2009 full-size trucks and SUVs. It calls for replacing the fuel tank pressure sensor/module. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0458 and P0489 with the engine going offline on the Volt
The source is owner and shop records, including an NHTSA complaint about a 2016 Volt whose engine went offline on the highway with many codes stored, among them P0458 and P0489. One record traces the codes to a blown fuse and cites GM 24-NA-080. These are owner or dealer statements and are not verified, and we have not confirmed that bulletin is still current.
P0462 with an erratic or empty fuel gauge
GM bulletin 20-NA-042 covers an erratic fuel gauge or one reading empty with P0462 on the 2020 Corvette. Only the summary was read, so it does not give the fix; ask a dealer about it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0463 with the fuel gauge reading empty on a full tank
GM bulletin 07-08-49-013 covers 2005 to 2007 Uplander, Montana, Relay and Terraza minivans whose fuel gauge reads empty with a full tank, with P0463 stored. The bulletin fix is a new fuel level sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0463 with an erratic fuel gauge in freezing weather
GM bulletin 4294 covers an erratic fuel gauge with P0463 in freezing temperatures on 2007 to 2008 Silverado and Sierra with certain V8 engines. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0463 from poor terminal tension at a fuel level connector
GM bulletin 09-08-49-005 links P0463 on 2008 to 2009 Impala and LaCrosse models to poor terminal tension at connector X405. Check that connector before replacing the fuel level sensor. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0480 from intermittent or dead cooling fans
GM bulletin 09-06-03-007A ties P0480 on the 2006 to 2011 Impala, with a hot temperature gauge, to cooling fans that are intermittent or dead. The repair it gives is a revised cooling fan relay and harness assembly. The summary we read is from NHTSA only, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0480 from water in the forward lamp harness
GM PIC6160B covers a 2016 Camaro with an inoperative cooling fan and P0480. It says to inspect the forward lamp harness for water intrusion and replace the damaged harness and components. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0481 with hot gauge and cooling fans that cut out
GM bulletin 09-06-03-007A covers P0481 on 2006 to 2011 Impala models with a hot temperature gauge and cooling fans that work intermittently or not at all. GM installs a revised cooling fan relay and harness. Check that the fans run before the engine overheats. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0481 with an open cooling fan fuse on the Equinox
GM 3141 links intermittent P0481 on the 2005 Equinox to an open COOL FAN HI 25 amp fuse. The summary does not give the root cause, so find out why the fuse blew before replacing it. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0496 from purge solenoid O-ring damage
GM preliminary information PIP6037A links P0496 on recent small SUVs to possible damage to the purge solenoid O-ring, after the purge hoses have been checked. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0497 from EVAP parts soaked with liquid fuel
GM preliminary information PIP4891H covers P0497 on the 2011 to 2015 Volt: inspect the EVAP parts, replace any soaked with liquid fuel and blow out the lines. GM warns that overfilling the tank can bring the problem back. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0498 with a vent control signal low
A 2017 Malibu owner complaint to NHTSA reports P0498 with a related EVAP code and says the owner was told the canister vent solenoid needs replacing. The owner says three similar vehicles needed the same repair. The source is an owner report to NHTSA, not a confirmed pattern.
P0498 on the Silverado 1500
A 2020 Chevrolet Silverado 1500 owner told NHTSA about a check engine light with P0498. The owner says service centers called it a known issue and the owner is waiting on a part. The source is owner reports, not a verified repair.
P0499 that returned after an EVAP valve connector repair
The source is an NHTSA owner complaint about a 2020 Silverado 1500. The dealer found the EVAP error P0499 and replaced the EVAP valve harness connector, and the light came back about 48 hours later. Other Silverado 1500 owners report the code repeating too. These are owner reports only, so the cause is not confirmed.
P0499 blamed on the EVAP vent solenoid
A 2008 Chevrolet Avalanche owner complaint on NHTSA reports a check engine light with P0499 at about 70,600 miles and blames a faulty EVAP vent solenoid. The source is owner reports, not a bulletin or a confirmed repair.
P04FB from condensation freezing in the crankcase pressure sensor
GM TechLink bulletin PIP5841 names P04FB as a crankcase ventilation hose connection pressure sensor performance fault on the 2.0L (RPO LSY) in some 2019 to 2022 GM models. GM says moisture can freeze in the sensor assembly in freezing weather. Its repair is to remove and inspect the PCV and crankcase pressure sensor and hose assembly, let frozen moisture thaw and drain, remove residual condensation, clear codes and re-evaluate. GM TechLink was read directly, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P04FB returning after a dealer cleared it
A NHTSA complaint for a 2025 Equinox says a dealer read P04FB as a crankcase ventilation pressure sensor issue and cleared it. The dealer said engineers were working on an improved solution, and the light came back. No bulletin was found. This is a single complaint and NHTSA has not verified it. The source is owner reports.
P0502 with an intermittent no-Reverse condition
GM bulletin PI1489 covers a lit MIL with P0502 on some 2013 to 2015 models with a manual transmission. The later revision says the code can come with an intermittent inability to shift into Reverse, caused by water in the output speed sensor or by holding the car on a hill by slipping the clutch. We only read the NHTSA summaries. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0502 with an inoperative speedometer
GM bulletin PIT-4865 covers an inoperative speedometer or a check engine light with P0502 on 2005 to 2009 Kodiak and TopKick medium-duty trucks. It says the cause could be the transfer case control module not communicating on the Class 2 bus. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0503 set alone with the check engine light on
Chevrolet bulletin PI1439A is a diagnostic tip for a check engine light where only P0503 is set with no other symptoms, on the 2015 Corvette. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0506 from a broken valve spring
GM bulletin PIP5423B says that when the check engine light is on with a manifold pressure code and P0506 together, the engine should be inspected for a broken valve spring. NHTSA lists 2014 to 2019 trucks, SUVs and some cars for it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0506 from a charge air cooler duct off the throttle body
GM bulletin N192266090 says the charge air cooler outlet on the 2019 Equinox, Malibu and Terrain can come off the throttle body, setting the check engine light and reduced power with P0506 and other air codes. The engine may also run rough and stall at low speed or idle. Check that the duct is attached at the throttle body first; dealers install a retainer kit. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0506 from interference on the crank sensor circuit
GM bulletin 17-NA-317 says low idle, stalling after auto start, transmission shudder and reduced power with P0506 and cam timing codes on the 2018 Enclave and Traverse come from interference on the crankshaft position sensor circuit. The fix is to replace the crank sensor section of the engine harness, so check the harness before the sensor or cam parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0506 with steam from the grille or rough running
GM bulletin PI1203B covers steam or vapour from the front grille or radiator area, rough running or stalling, or P0506 on the 2014 Impala. The summary we read does not give the repair, so check the coolant level and look for leaks first, then ask a dealer for the bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050D after a cold start from coolant in the cylinders
GM bulletin PIP5498M says P050D with a misfire after a cold start, possibly with white smoke or a coolant smell from the exhaust, comes from coolant getting into the cylinders on 2014 to 2020 GM V8 trucks, SUVs and some cars. Check the coolant level and look for those signs before replacing injectors, although owners also report injectors being replaced for this code. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050D with a rough idle on cold starts
GM bulletin 24-NA-244 programs the engine computer with the latest software to correct a rough idle on cold starts with P050D on 2024 to 2025 Traverse and Acadia and the 2025 Enclave. Ask a dealer whether the update has been done before other repairs. GM also says that if injectors are replaced, they must be replaced as a matched set. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050D fixed with an engine computer calibration
GM bulletin 21-NA-104 gives an engine control module calibration for P050D on the 2020 Colorado and Canyon. Ask a dealer to check for the calibration before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050D with misfire and rough idle on the Volt
GM bulletin 32340B covers misfire with the check engine light, rough or high idle and P050D on the 2016 and 2017 Volt. Dealers reprogram the engine computer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050D from the exhaust-side lash adjusters
GM bulletin PIP5472F says to run the normal service diagnostic for P050D first on some 2016 to 2018 GM small cars and crossovers. If that does not isolate the cause, GM replaces only the exhaust-side hydraulic lash adjusters and retests. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050F from the vacuum system or brake booster
GM bulletin PIT5610 covers the service engine soon lamp with P050F on the 2018 Enclave and Traverse. It says to check the vacuum system first, and to replace the brake booster if the vacuum system is working properly. A related bulletin covers reprogramming the brake control module. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P050F fixed by an ECM update
GM bulletin 17NA401 says to update the engine control module if P050F is set or in history, which points to weak brake booster vacuum. Check the booster vacuum supply and the software level first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0513 with no start and a theft deterrent message
GM bulletin 16-NA-024 covers a no-start with a theft deterrent message and P0513 on the 2014 to 2016 Impala, and says to retorque a ground. Check the battery and ground connections first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0521 with no oil pressure: oil pump relief valve or main bearing
GM preliminary information PIP5630 links P0521 and no oil pressure on 2019 Silverado 1500s to a sticking oil pump relief valve or a spun No. 1 main bearing. Treat the code as possible real low oil pressure: if the oil pressure warning is on, stop the engine and have the truck towed. We have not confirmed whether this bulletin or its later revisions are still current.
P0521 from an oil pump stuck by foreign material
GM service update A202302140 covers oil pumps stuck by foreign material on the 2021 Trailblazer and 2020 Encore, which can set P0521. Dealers run an oil pump screening test and replace the pump if needed; if the oil pressure warning comes on, stop the engine. We have not confirmed the bulletin is still current.
P0521: harness inspection and oil pump tests
GM preliminary information PIP5932 gives a wiring harness inspection and oil pump tests for P0521 on the 2024 Trax. Have the oil pressure checked rather than assuming a sensor fault, and stop the engine if the oil pressure warning comes on. Summary only; full bulletin not reviewed, and we have not confirmed it is still current.
P0522 with wire harness chafing or oil pressure gauge faults
NHTSA bulletin summaries for these trucks say to inspect for wire harness chafing near connector X108 when P0522 and other codes are set. Other summaries cover a high, low or erratic oil pressure gauge reading. They apply to 2004 to 2009 Silverado 1500 and Sierra 1500. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0522 with an erratic oil pressure gauge
NHTSA bulletin summaries for the 2004 Avalanche and Express cover a high, low or erratic oil pressure gauge reading with P0522. The summary refers to an engineering investigation. Only the cached NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0523 with erratic oil pressure gauge readings
GM engineering investigation EI 04073 covers high, low or erratic oil pressure gauge readings that set P0523 on 2004 GMT800 trucks and SUVs, including the Tahoe, Suburban and Silverado. The bulletin also lists the Hummer H2 and Isuzu W4, and the summary does not give the repair. Check the oil level first and confirm the pressure with a mechanical gauge before replacing parts. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0550 with flashing 4WD indicator lights
Chevrolet bulletin 040421004 covers flashing 4WD switch indicator lights and inoperative 4WD with P0550 set, alongside a chassis code, on the 2002 to 2005 TrailBlazer. The summary does not give a cause or repair. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0556 with a hard brake pedal and a failed vacuum pump
One owner of a 2019 Chevrolet Malibu reports a stiff brake pedal at about 35 mph, with P0556 stored and a failed brake vacuum pump found by a mechanic. Other owners report similar cases, once with cam codes and engine damage. A hard brake pedal is a brake safety problem, so have the car inspected by a shop and do not drive it until that is done. The source is owner reports, a single complaint that NHTSA has not verified, so it is labelled vehicle data rather than confirmed.
P0562 with reduced power and a hard brake pedal
GM bulletin PIT5634 says low system voltage on the 2019 Silverado 1500 can make the brake control module set a fault, with reduced engine power, a speed-limited message and loss of brake assist (a hard brake pedal), and tells technicians to diagnose P0562 first. Loss of brake assist is a safety risk, so do not keep driving normally; have it checked straight away. We have not confirmed the bulletin is still current.
P0563 on 2024 Silverado and Sierra HD trucks
GM bulletin 24-NA-050 covers repair information for Silverado and Sierra vehicles that set a control module code together with P0563. Only the summary was read. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0573 with unreliable cruise control
One NHTSA complaint on a 2007 Chevrolet Avalanche 1500 reports a scan result of P0573 as the cruise control and brake switch circuit, with cruise control that is unreliable or disengages. It is a single complaint, not a documented pattern. The source is owner reports, not a diagnosis.
P0598 in a long code list with an EGR valve short
Two Chevrolet Volt owner complaints to NHTSA list P0598 among many codes with reduced propulsion. One shop traced a lost circuit to a blown fuse in the underhood fuse block and a short at the EGR valve. These are owner reports, and the link needs testing to confirm.
P0599 read as a thermostat control circuit fault
The source is an NHTSA owner complaint about a 2012 Cruze. The owner says a mechanic read P0599 as the thermostat control circuit, and the cooling fan ran hard before the warning light came on. This is a single owner report, not a confirmed cause.
P059F from a stuck or blocked grille shutter
GM bulletins name ice or snow in the active grille shutters on some GM trucks, and a harness rubbing on the air shutter assembly on some small GM cars. PIT5364 says not to replace parts before checking the grille shutter for ice, snow or obstruction. Look at the shutters and harness first. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0601 and the engine computer's powers and grounds
GM bulletin PIP5609 covers the check engine light with P0601 and related engine computer codes on some 2016 to 2018 GM trucks, SUVs and the Malibu. GM tells dealers to inspect the engine computer connectors and its power and ground supplies, and to replace the computer only if nothing else is found. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0604 that can be stored in the transmission module
GM bulletin PIP-4653 B says P0604 can be stored in the transmission control module and also set in the engine or fuel pump control module. It says to confirm which module set the code before diagnosing. The summary we read is from NHTSA only, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0606 set by the brake module from low voltage
GM bulletin PIT5634 says the brake control module on 2019 Silverado 1500 and Sierra 1500 trucks can set P0606 from low voltage, with a hard brake pedal, Reduced Engine Power or Service Brake System messages. Following the engine computer test for this code can lead to the wrong repair, so check the battery and charging system first. On later trucks GM adds checks for wiring, terminals and communication before parts are replaced. Brakes are safety critical, so have a hard pedal inspected before driving on. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0609 in ABS diagnostic information
Chevrolet bulletin 050525002 gives diagnostic information on the antilock brake system for a group of ABS codes that includes P0609 on 2003 to 2005 Express models. Only the NHTSA summary was read. The brakes are a safety system, so have the vehicle inspected by a qualified technician. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0615 after a stall, read with other power relay codes
The source is an NHTSA owner complaint about a 2014 Traverse. After a freeway stall the owner's code reader showed P0615 along with a processor fault and two power relay circuit codes. A stability-system warning also appeared. This is a single owner complaint that NHTSA has not verified.
P0622 with stalling or a charging message on the Cruze
GM bulletin PIC6212 covers a 2016 Cruze that stalled while driving or would not crank, or showed a battery light or Service Charging System message, with P0622 possibly set. The summary says to inspect the main engine ground cable under the starter for looseness and repair as needed. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0622 from a generator harness rubbing the A/C line
GM bulletin PIT5503 says P0622 may be caused by the generator wiring harness rubbing on the A/C compressor line and shorting the circuits, with a Service Charging System message or check engine lamp. The summary says to inspect for chafing, repair it and add conduit. It covers 2011 to 2014 Silverado and Sierra trucks. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0641 from the fuel rail pressure sensor
GM PIP5444 covers the warning light with P0641 on 2016 to 2017 Camaro, Acadia, ATS and CT6 PHEV models. It says to unplug the fuel rail pressure sensor to see whether it is pulling the 5-volt reference line low, and to replace it with the current part if so. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0641 with hard starting from rubbed engine wiring
GM bulletin PIT5424 covers some 2013 to 2015 GM models with intermittent hard starting, the check engine or low oil pressure light, and P0641 with injector codes. The bulletin says to inspect the engine harness routing at the ECM and upper rear of the engine, repair wires damaged by rubbing, wrap them and reposition the harness. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0641 with engine power reduced
A 2010 Cobalt owner complaint reports the check engine light and an engine power reduced message with P0641, and sensors, the throttle body and the ECM replaced without a cure. This is one owner report and needs testing to confirm any cause.
P0650 set after PCM replacement
GM bulletin 01584 covers P0650 being set after the powertrain control module is replaced on 2001 to 2002 Impala and Monte Carlo models. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0651 with broken oil piston nozzles
GM bulletin PIP5247A says P0651 can be stored alongside a related oil pressure code on many 2013 to 2019 GM models. It points to broken oil piston nozzles when diagnosis leads to removing the oil pan or hot oil pressure is below specification. Check the oil level and oil pressure first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P069E from a pinched harness under the rear seat
GM bulletin PIC5606A links P069E and related codes on 2012 to 2014 Impala models to a twisted or pinched wiring harness under the rear seat. An owner of a 2014 Impala Limited also reports a stall and crank-no-start. Inspect that harness first. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P069E with the warning light on the Malibu
GM PI1111 covers a warning light with P069E on the 2013 to 2014 Malibu. The summary does not state the repair, so ask a dealer to check this bulletin before replacing parts. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P069E with stalling when slowing on the Colorado
One owner of a 2016 Chevrolet Colorado reports P069E with the engine stalling when slowing down. The local dealer advised checking for rubbing or unsecured wiring around the water pump area. Look at that wiring first. The source is owner reports, a single complaint that NHTSA has not verified, so it is labelled vehicle data rather than confirmed.
P06DA and crank-no-start from a chafed jumper harness
GM PIP5553 covers a service engine soon lamp with P06DA and cam and crank codes on 2018 Suburban and related GM V8 trucks and SUVs, with a possible crank-no-start or stall. A wiring jumper harness may be chafed at the bolt at the X154 connector, on the lower left of the front cover. Inspect that harness before replacing sensors. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DA from a pinched jumper harness
GM bulletin PIP5724 covers a check engine light with P06DA and cam and crank codes on 2020 Tahoe and related GM trucks and SUVs, caused by a jumper harness pinched at a bracket. Possible crank no start is listed. Inspect that harness first. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DA with many codes from a blown fuse
An owner report quotes a dealer repair order that traced P06DA and many other codes on a 2018 Chevrolet Volt to a blown underhood fuse caused by a short at the EGR valve. Check fuses before chasing the oil pump. This comes from owner reports to NHTSA, not a bulletin, and it needs testing to confirm the cause.
P06DD from a broken oil pump control solenoid
GM bulletin PIP5555 says P06DD on 2015 to 2018 GM V8 trucks and SUVs can come from a damaged or broken oil pump control solenoid, even with a new pump fitted. Related GM bulletins also cover timing chain guide and pump wear and engine harness faults. Check the oil level and measure real oil pressure before buying a pump. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DE with front engine noise and an Oil Pressure Low message
GM preliminary bulletin PI1482 links P06DE to mechanical noise from the front of the engine and an Oil Pressure Low message on the 2013 to 2015 Impala. We only read the NHTSA summary, so the repair is not known. Check the oil level and condition first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DE with the service engine soon light on
GM preliminary information PIP5247 covers P06DE with the service engine soon light on 2013 to 2014 Malibu and Impala models. We only read the NHTSA summary, which does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DE from a mis-positioned timing chain tensioner gasket
GM preliminary information PIP5519A links P06DE to a mis-positioned timing chain tensioner gasket after major engine repairs on 2016 to 2019 Cruze. The bulletin also mentions low oil pressure. Check the oil pressure first. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P06DE from a GM bulletin with model-year procedures
GM bulletin 18-NA-246 gives model-year repair procedures for P06DE together with other codes on Malibu and other GM cars. The procedures depend on model year, so match the vehicle to the right one. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0700 on nearly new trucks
GM bulletin 23-NA-210 covers P0700 set in the TCM on vehicles with very low mileage, fixed by clearing codes and running a relearn, with valve body replacement only if a related transmission code returns. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0701 on trucks that will not move
GM preliminary information PIP5100A lists P0701 among the codes on 2011 to 2014 Silverado trucks that will not move forward or reverse. It has the valve body separator plate orifices inspected for blockage. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0705 with no shifting and a blank gear display on the 2013 Spark
GM bulletin PIP5101 covers a 2013 Spark that lacks power, will not shift and shows a blank PRNDL display with P0705. It points to the park/neutral position connector and switch, so inspect the connector first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0706 with the check engine light
GM bulletin 3357 covers the check engine light with P0706 on 2001 to 2005 Silverado and Sierra trucks. Our summary does not give the cause, so ask a GM dealer for the bulletin before replacing transmission parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0707 that a new range switch often does not fix
GM/Isuzu bulletin IB15-K-002A says many inhibitor switches replaced for P0707 on W-Series trucks had no fault. The most likely causes are an open F-18 fuse or a stretched or misadjusted shift cable, so check those before buying a switch. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0708 stored for the park/neutral switch
The source is an NHTSA owner complaint about a 2004 Silverado 2500. The owner says the warning light kept returning with P0708 for the park/neutral switch, and the switch was replaced. This is an owner report only, so the cause is not confirmed.
P0708 after an unexpected shift to 4-wheel drive
An NHTSA complaint on a 2020 Silverado 1500 says OnStar retrieved P0708 after the truck shifted to 4-wheel drive on its own and the rear wheels locked. The owner also mentions a powertrain software recall repair. The source is a single owner report, and it needs testing to confirm the cause.
P0717 with no reverse and no third gear
GM bulletin 16-NA-013 covers no reverse and no third gear with P0717 on the 2016 Equinox and several GMC, Buick and Cadillac models. The repair replaces the 3-5-reverse clutch plates, so a solenoid or sensor alone may not fix it. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0717 from a wiring fault at the transmission connector
GM bulletin PIP5084A covers harsh shifts or the check engine light with P0717 on 2013 trucks and vans, including the Silverado. It says to check circuit 1984 at the transmission inline 20-way connector before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0721 with no shift and an erratic speedometer on the Allison
GM bulletin 00574A ties P0721 and an ABS code to no shift and an erratic speedometer on 2001 to 2004 Silverado 1500 and Sierra 1500 trucks with the Allison LCT1000, and the ABS light may be on. Because an ABS code is involved, have it inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0723 and a transmission speed sensor
GM bulletin PIP5473 covers a service engine soon lamp with several transmission speed codes including P0723 on the 2017 Malibu. It says to follow service information diagnostics first and, if they do not isolate a cause, to replace the speed sensor tied to the code. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0723 after a loss of power on the Cruze
An NHTSA complaint on a 2011 Chevrolet Cruze reports P0723, described as a speed sensor code, after a loss of power at 70 mph. The owner says the transmission later failed. The source is a single owner report, and it needs testing to confirm the cause.
P0729 when the truck will not move
GM bulletin PIP5100A lists P0729 among the codes on 2011 to 2014 Silverado 1500 trucks that will not move in forward or reverse. It points to blocked valve body separator plate orifices caused by an aftermarket spin-on filter. Ask whether an aftermarket filter was fitted. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0730 set during vehicle transport
GM bulletin 19-NA-201 says P0730 on 2019 to 2020 Malibu models may set while the car is being transported. GM treats it as a false code unless the owner reports the warning light on and other codes are present, so check for other codes before any repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0736 with no drive engagement or delayed reverse
GM bulletin PIP4379N is preliminary information on trucks that will not engage drive, or have delayed or no reverse, or a range inhibit, and it lists P0736 among the codes. The vehicle notes cover some Silverado and Sierra heavy-duty and 1500 trucks. Check the transmission fluid level and condition first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P073E with no drive or no reverse
GM bulletin PIP6077B is preliminary information on no drive or no reverse on the 2025 Equinox and Terrain with P073E set. Engineering was still working on the issue when it was written, so no repair is given. Note the stored codes and have a dealer check for updates. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0741 from a damaged turbine shaft bushing
GM preliminary information PI1447A points to a damaged turbine shaft front bushing, and possibly the shaft, for P0741 on 2015 and 2016 Colorado and Canyon trucks. This is transmission work for a shop. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0742 with firm shifts and shudder
GM bulletin 02-07-30-039 links firm shifts, a shudder or chuggle and no downshift on deceleration to P0742 on 2003 models, including the Venture and Bonneville. It points to a torque converter clutch that stays applied. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0742 with surge or stall at a stop on Allison LCT1000 trucks
GM bulletin PIP4290A covers trucks with the Allison LCT1000 that surge or stall in gear at a stop with P0742 set and the torque converter clutch possibly applied. Note the symptoms and check the transmission fluid level and condition first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0746 on the VT40 CVT and its two pressure sensors
GM bulletin PIP5671 says to replace both pressure sensors for P0746 on the VT40 CVT in the 2019 Malibu, not just the one the code names. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0747 from a worn transmission control valve
GM special coverage N242454441 says a worn transmission control valve can lose pressure over time, causing harsh shifting, a service engine soon message, reduced engine performance or P0747. It extends coverage to 15 years or 150,000 miles on some GM trucks and SUVs, and later models have a separate valve body bulletin. Ask a GM dealer to check coverage by VIN before paying for repairs. We have not confirmed the coverage is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0747 from a clutch spring retaining ring not fully seated
GM service update N202321840 inspects for a transmission clutch spring retaining ring that is not fully seated, which can set P0747 at low mileage on 2020 to 2021 Equinox and some related GM models, including the Blazer and GMC Terrain. Ask a dealer whether the service update is open on your VIN. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0753 listed with other transmission codes
GM bulletin 280102 provides information on P0753 with two other transmission codes on the 2002 Cavalier. Only the NHTSA summary was read, so the cause and repair are not stated. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0757 with harsh or delayed shifts on MN8 and MT1 transmissions
GM bulletin 08-07-30-015 gives diagnostic information for a warning light with P0757, harsh shift, delayed 2-3 shift, 2-3 shift flare, no third gear, or slipping in third gear or reverse. It applies to 2002 to 2007 full-size trucks and vans with the MN8 and MT1 transmissions. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0761 with no movement forward or in reverse
GM bulletin PIP5100A covers 2011 to 2014 Silverado and Sierra trucks that will not move forward or reverse, with codes that include P0761. The technician inspects the valve body separator plate orifices for blockage caused by an aftermarket spin-on filter. Ask whether an aftermarket filter has been fitted. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0776 from the CVT pressure sensors
GM bulletin PIP5671 says that for P0776 on the 2019 Malibu with the VT40 CVT, both transmission pressure sensors should be replaced. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0777 as a history code on the 2016 Silverado
GM bulletin PIP-5396 says that on the 2016 Silverado 1500 and Sierra 1500, if P0777 is only a history code, no repair should be done because a new calibration was planned. If the code is current, follow normal diagnosis. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0796 fixed with a valve body when the pan is clean
GM bulletin PIP5771B says to replace the valve body on 8-speed transmissions setting P0796 on 2020 and 2021 Silverado 1500, Sierra 1500, Colorado and Canyon trucks, if there is no debris in the pan. If debris is found, a different repair applies, so check the pan first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0796 with no 4th, 5th or 6th gear
GM bulletin 16-NA-027 covers no 4th, 5th or 6th gear and the check engine light with P0796 on 2015 and 2016 Tahoe, Suburban, Silverado HD, Sierra and Yukon models, and GM replaces the 4-5-6 clutch hub. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0796 with slipping or no 4th, 5th or 6th gear
GM bulletin PI-0773 covers slipping or no 4th, 5th or 6th gear with P0796 active on 2006 to 2012 GM trucks, SUVs and cars with 6-speed automatics. Check the fluid level and condition first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0796 on low-mileage vehicles
GM bulletin PIP6010B gives diagnostic information for low-mileage vehicles setting P0796, covering the 2025 and 2026 Equinox and the 2024 and 2025 Terrain. Ask a dealer to follow it before replacing transmission parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0797 with burned fluid and harsh shifting
A 2023 Chevrolet Traverse owner complaint to NHTSA says the dealer found burned transmission fluid and diagnosed P0797 and a general transmission code as an internal transmission problem. Harsh shifting and jerking got worse until the warning light came on. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P0797 in the engine module and transmission module together
GM PIP5000B covers a check engine light where a technician finds one code in the engine module and P0797 in the transmission module, on 2011 to 2014 Volt models. It tells the technician to use the published diagnostics and states no repair. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P07B4 with an unable to shift warning
A 2022 Chevrolet Silverado 1500 owner complaint to NHTSA reports a Service Transmission Now and Unable to Shift Soon warning with P07B4. The dealer ordered an automatic transmission shift control assembly, and the owner says it was a repeat failure. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P0841 and reduced engine power from chafed wiring
GM bulletin PIC4610A ties an intermittent Engine Power Reduced message and check engine light with P0841 on 2006 to 2010 Impala, 2006 to 2007 Monte Carlo and 2008 to 2010 HHR to chafed wiring. GM names three chafe points, so inspect the harness for rubbed-through insulation before replacing the pressure switch. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0843 that can be false from the fluid pressure switch
GM bulletin 07-07-30-015 gives information on checking the transmission fluid pressure switch for false codes, including P0843, on 6T70, 6T75, 6L50, 6L80 and 6L90 automatics. Check the pressure switch and its connector before replacing transmission parts. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0843 with a harsh shift into third or fifth
GM bulletin PI0179 covers a harsh shift, typically into third or fifth gear, on 2010 vehicles with a 6T70 or 6T75 transmission built between 4/1/10 and 5/8/10. A technician may find P0843 stored in the TCM as active or history. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0867 with a Service Transmission message
GM bulletin 23-NA-139 covers P0867 with a Service Transmission message on the Corvette. Note the message and the other stored codes, and check the transmission fluid level first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0871 stored in the TCM
GM PIP5521 tells dealers that on the 2015 Spark, P0871 should be cleared and the car retested. If the codes do not return the car is released, and if they return the transmission or valve body assembly is replaced depending on model year. Clear and retest before replacing anything. We read only the NHTSA summary, and we have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0894 with a harsh 1-2 shift on 2005 to 2006 GM trucks
GM bulletin 3609A covers a harsh 1-2 shift with the check engine light on and P0894 stored on 2005 to 2006 trucks and SUVs. The summary does not describe the repair. A 2007 Express 3500 owner reported jerking from a stop with the same code and found this bulletin. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0989 with rough shifting on the Impala
A 2013 Chevrolet Impala owner told NHTSA about rough shifting and a delayed response from a stop, with P0989 shown by a mechanic. No bulletin was found. This is a single owner report, not verified, and the cause needs testing to confirm.
P0A1F on the Volt that a new calibration may resolve
GM bulletin PIC-5828 says a service engine soon light with P0A1F on the 2011 to 2012 Chevrolet Volt may be resolved by a new calibration. It adds that the battery control module may need replacing. We read only the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A3F on the Bolt EV while GM investigated
GM preliminary bulletin PIP5641, with revisions up to D, says engineering was still investigating P0A3F on the 2017 to 2020 Bolt EV. It says to check connections first, and if nothing is found to replace the power inverter module, the under-hood harness and the transmission. Later revisions extended the model years. This involves the high-voltage system, so have it inspected by a qualified shop. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A3F with loss of propulsion or no start on the Volt
GM bulletin 18NA186 covers loss of propulsion or no start with the check engine light on and P0A3F set on the 2016 to 2018 Volt and Malibu. It is a diagnosis bulletin, so the cause is not given in our summary. High voltage systems are dangerous, so have this diagnosed by a qualified shop. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0A40 with a speed-limited Bolt EV and a harness bulletin
A 2023 Chevrolet Bolt EV owner reports P0A40 with a speed-limited car. OnStar said the electric drive unit was not performing as expected, and the dealer wrote drive motor position sensor erratic and cited a GM bulletin to replace the harness, which we did not read. The source is an owner report, not a verified repair, and the cause needs testing to confirm.
P0A7F on the Volt, with an instruction not to clear codes
GM information bulletin PIC6203 covers the 2016 to 2017 Chevrolet Volt with the service engine soon lamp on and P0A7F. It tells technicians not to clear codes or disconnect the 12-volt battery, to record the freeze frame data and the 4-digit battery capacity code, and to call the technical assistance center. It is preliminary information and does not state a repair. The summary we read is from NHTSA only, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AA1 with a stuck closed battery contactor on the Bolt EV
GM bulletin 21NA288 gives repair information for a warning light with P0AA1 on the 2017 to 2019 Chevrolet Bolt EV. The summary describes it as a battery positive contactor circuit stuck closed. We read only the NHTSA summary, so we do not know the repair steps. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AA1 from the high voltage battery disconnect relay on the Malibu Hybrid
GM bulletin 18NA084 covers a no-start with P0AA1 on the 2016 Malibu Hybrid. It says the disconnect relay, the hybrid battery contactor assembly, is replaced to correct it. Only the NHTSA summary was read, not the bulletin PDF. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AA1 that a GM program repairs on the 2019 Volt
GM information PIC6375 says a program repairs P0AA1 on the 2019 Volt, which can set when 12-volt battery voltage drops below a threshold under specific conditions. It is described as preliminary information. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AA6 with the car refusing to charge
GM bulletin PIC5920D covers a Volt or ELR that will not charge, with the check engine light and P0AA6 for loss of isolation. GM says to check the hybrid battery pack drain plug for moisture whatever the coolant level, then update module software if it is dry. High-voltage parts are not a DIY job, so have it inspected by a dealer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AC4 with Engine Unavailable messages
GM bulletin PIP5008A covers a check engine light, possibly with an Engine Unavailable message, on 2011 to 2014 Volt and 2014 ELR models. It pairs P0AC4 in the engine control module with another code in the hybrid powertrain control module. GM says not to clear the codes, to check whether the car was run very low on fuel or keyed off while driving, and to check grounds G106 and G113. A related bulletin covers 2016 to 2017 Volts with an inverter reprogram. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0AC4 set with a hybrid powertrain control module code
GM bulletin PIC6294 covers how to diagnose and repair a 2016 to 2017 Volt or Malibu when P0AC4 are set together with a hybrid powertrain control module code. High voltage systems are dangerous, so have this diagnosed by a qualified shop. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1101 with the check engine light
GM bulletin PI0907C covers the check engine light with P1101 on 2011 to 2017 Cruze, 2012 to 2017 Sonic and 2013 to 2017 Trax and Encore. The summary we read does not state the repair, and the vehicle notes tie later models to crankshaft oil leaks, so ask a GM dealer which repair applies. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1101 from the wrong air cleaner housing
GM bulletin PIP5240F says P1101 on some 2013 to 2019 GM small crossovers can come from an air cleaner housing that is not the right one for the engine, and the housing is replaced. Other GM bulletins on these models cover a whistle at start-up and oil leaks with the same code. Inspect the air cleaner housing and intake ducting first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1101 with reduced engine power from a charge air cooler O-ring
GM bulletin PIP5402E links Reduced Engine Power with P1101 on some 2013 to 2019 GM turbo models to a damaged O-ring at the charge air cooler coupler. Check the charge air cooler coupler and O-ring for damage or leaks first. Other GM bulletins on the Malibu also mention this code for a crankshaft oil leak. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1125 with a revised definition
GM bulletin 030604031 revised the definition of P1125 on 2003 Chevrolet trucks and SUVs. So the code text in older scan tools may not match the bulletin. Check the current definition before choosing what to test. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1125 with the check engine light on
GM bulletin 01912 covers a check engine light with P1125 or a related code on the 2005 Equinox. We only read the NHTSA summary, which gives no cause or fix, so check the sensor wiring and connectors first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1125 with a warning light
GM bulletin 3239 covers a warning light with P1125 on the 2004 Express. Only the NHTSA summary was read, and it lists the concern without a fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1174 from a fuel injector concern
GM bulletin PIP4017C tells dealers to test the fuel injectors for P1174 on the 2006 to 2007 Malibu and the 2007 Saturn Vue, Aura and Sky. We only read the NHTSA summary. Injector testing is the first step. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1174 from clogged injectors on the 5.3L
GM bulletin 070604027 covers driveability symptoms and clogged fuel injectors with P1174 on 5.3L Tahoe, Suburban and Silverado models. Check the injectors for clogging first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P129F from a failed fuel pump driver control module
GM bulletin 24-NA-139 replaces the fuel pump driver control module for P129F on some 2021 to 2023 GM models, with crank no start, stalling, loss of power or an erratic fuel gauge. GM also opened an engineering inquiry on some 2022 models. Check for other fuel pump codes and a dead or erratic fuel gauge before replacing the pump itself. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P12A6 with a crank no start or extended crank
GM bulletin PIP5719A covers P12A6 with a crank no start or extended crank on 2017 to 2020 Chevrolet trucks and SUVs. We only read the NHTSA summary, which gives no cause or fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P12A6 with a crank no start or extended crank
GM bulletin 20NA218 gives repair information for a possible crank no start or extended crank with P12A6 on 2020 to 2021 Tahoe, Suburban and related trucks. Only the NHTSA summary was read, and it does not name the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1516 with an intermittent engine power loss
GM bulletin 3040 covers a Service Engine Soon light or reduced engine power with P1516 on 2003 Avalanche, Silverado, Suburban, Sierra and Yukon trucks. GM says the condition is normally very intermittent. Check the related circuit connections first. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1516 from a throttle body frozen shut in cold weather
GM bulletin 06-06-04-050 ties P1516 on the 2006 to 2007 Aveo to a throttle body frozen shut or stuck closed in cold weather, with poor acceleration. Check the throttle body for ice or sticking first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1626 with hard starting and a flashing security light
Owners of a 2002 and a 2003 Chevrolet Impala told NHTSA about P1626, a theft deterrent fuel enable signal not received fault, with hard starting or no-crank. One owner on a 3.4L saw a flashing security light, and re-learning the keys did not help. NHTSA has not verified these reports. The source is owner reports, not a verified repair.
P1626 with lost communication and limp mode
An NHTSA owner complaint on a 2006 Chevrolet Equinox reports P1626 as a lost theft deterrent fuel enable signal, with lost-communication codes and limp mode. The body control module was replaced three times and the third one fixed it. It is a single complaint that NHTSA has not verified. The source is owner reports, not a diagnosis.
P1682 with reduced power or stalling from the underhood fuse block
GM bulletins 19NA276 and PIT5643 link P1682, often with a related code, to arcing or corrosion at the underhood fuse block on the 2013 to 2017 Traverse, Enclave and Acadia. Symptoms are a reduced engine power message or a stall. Inspect the fuse block for corrosion or burn marks first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1682 with battery draw or no start
GM bulletin PIT4649B covers the Service Engine Soon light with P1682, battery draw or no start on some 2007 to 2013 GM crossovers. Our notes for later models point to arcing or corrosion at the fuse block. Check the battery and look at the fuse block for heat marks or corrosion first. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1682 with an intermittent crank or no start
GM bulletin PIC5971A covers a no start or intermittent crank with P1682 on the Impala, and names the KR75 engine controls ignition relay as a possible cause. Check that relay before replacing the engine computer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1811 with slips, harsh shifts and shudder on 1997 to 2002 GM front-drive cars
GM 00-07-30-002B covers slipping, harsh shifts and shudder with P1811 on 1997 to 2002 Buick, Chevrolet, Oldsmobile and Pontiac front-drive models. An NHTSA complaint quotes it as directing replacement of the pressure control solenoid valve assembly. Ask a shop to test that solenoid before replacing the transmission. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1811 set falsely on the 4T65-E, fixed by a TCM reprogram
GM 08-07-30-013 covers a harsh shift on the 2007 Uplander and related vans with the 4T65-E, where P1811 can set falsely. The fix is reprogramming the transmission computer. Ask a dealer whether the reprogram has been done before replacing parts. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P182E and the circuit and system verification steps
GM bulletin 17-NA-084 covers a check engine light with P182E on 2009 to 2018 Buick, Cadillac, Chevrolet and GMC models. It gives a procedure to complete the circuit and system verification steps. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P182E with stability control and check engine lights
Owners of 2010 to 2013 Chevrolet Traverses report P182E with other transmission and stability control codes. One 2013 owner says OnStar found them while exiting a highway ramp, and one shop quoted the mode switch and computer. The source is owner reports, not a confirmed repair. It needs testing to confirm.
P182E with the transmission acting as if in neutral
A 2010 Equinox owner complaint reports a camshaft timing code followed the next day by P182E and another code, and the transmission going into a neutral-like state at 30 mph. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P1870 with harsh converter clutch apply on the 4L80E
GM bulletin 3047 covers harsh torque converter clutch apply and P1870 on 2000 and 2001 GM trucks and vans with the 4L80E, including the Silverado 1500, Sierra 1500, Suburban, Express, Savana and Yukon. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1870 with a harsh 1-2 upshift
GM bulletin 01-07-30-023B covers a harsh 1-2 upshift and the check engine light with P1870 on some 1996 to 2000 Chevrolet and GMC trucks, Camaro, Corvette and other models. Only the summary was read, so it does not give the fix. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1870 with converter clutch slip at highway speed
GM bulletin 97-12-01-777-17A covers torque converter clutch slip and P1870 at 45 to 55 mph on the 1997 Camaro. The summary we read does not give the repair, so ask for the bulletin before replacing the converter. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P1E00 from a failed battery energy control module
Owners of 2016 to 2018 Chevrolet Volts report P1E00 with a run of battery module communication codes, a Propulsion Power Reduced message, loss of power, no charge or no start. Dealers diagnosed a failed battery energy control module, and one owner cites GM special coverage N232432680, so ask a dealer to check the VIN. The source is owner reports from the NHTSA complaint file.
P1E00 after an interrupted charge on the Volt
GM bulletins PIC5803 and PIC5803C cover P1E00 with other charging codes after a charge did not complete or was interrupted on the Volt. GM tells dealers to check the home charging equipment, including the charger calibration, or have the outlet and circuit tested by an electrician. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2068 with a fuel gauge that reads empty
GM bulletin PIC-5211 covers a fuel gauge that reads empty with the service engine soon light and P2068 current on the 2010 Camaro. The summary says this may be due to a disconnected fuel level sensor. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2068 with an erratic fuel gauge on a 2005 Corvette
GM bulletin 050849027 covers erratic fuel gauge readings on the 2005 Corvette, with the gauge reading empty with fuel in the tank, a low-fuel message in the driver information centre, and P2068 set. The NHTSA summary we read does not state the cause. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P207F with an exhaust fluid quality message
GM bulletin PIP5007D covers an Exhaust Fluid Quality Poor message on 2010 to 2015 vans and trucks with the LGH or LML diesel. It says to use the specific diagnostic for any code that is set, and to follow the service information for the message if there is none. Check the exhaust fluid itself first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2097 that come and go on the Malibu
GM PIP5215 gives diagnostic tips for intermittent P2097 on the 2013 Malibu. The tips cover fuel trims, the rear sensor heater and small exhaust leaks. Check for small exhaust leaks and look at fuel trims first. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2097 from rich post-catalyst fuel trim
GM bulletin PIP4964C covers post-catalyst fuel trim that is too rich, setting P2097, on many GM models. Its summary points to an injector balance test and small exhaust leaks. Check for exhaust leaks first. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2097 set falsely on the Volt
GM GCUS-3-842 covers a false P2097 on the 2016 to 2017 Volt that runs normally, fixed by reprogramming the drive motor inverter module. Ask a dealer whether the reprogram has been done. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P20C1 with an emissions speed limit in extreme cold
Two 2020 Chevrolet Silverado 1500 owners report P20C1 with an emissions speed limit in extreme cold. One owner relays a dealer finding of a melted DEF tank electrical connector. No bulletin was found in our cache. The source is owner reports, not a verified repair.
P2101 fixed by an engine computer update
GM bulletin 18-NA-037 reprograms the engine computer to correct P2101 on 2017 to 2018 Silverado, Sierra, Tahoe, Suburban, Yukon and Escalade. Ask a dealer whether the update has been done before replacing parts. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2101 with reduced power from poor terminal crimps
GM bulletin 09-06-04-016A links reduced power with P2101 and a related throttle code on the 2009 Aveo to poor terminal crimps in the wiring harness. Check the throttle and pedal sensor connectors and terminals before replacing the throttle body. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2106 from a throttle body frozen shut in extreme cold
GM bulletin 08-06-04-004 says the throttle body on the 2006 to 2008 Aveo 1.6L can freeze shut in very low temperatures and high humidity, setting P2106 and related throttle codes. The fix is a PCV kit and an engine computer reprogram, so if the code appeared on a very cold day, ask a dealer about the bulletin before replacing the throttle body. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2110 from a throttle body frozen shut
GM bulletin 08-06-04-004 links P2110 on the Aveo, including 2006 to 2008 models, to a throttle body that freezes shut in extreme cold and humidity. Our notes say GM adds a PCV kit and reprograms the engine computer. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2119 with no check engine light or loss of power
GM bulletin PIP5513 says P2119 on the 2016 to 2018 Volt does not light the check engine light or reduce power. GM advises against replacing the throttle body for this code alone, so look for other codes or symptoms first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2122 with an open fuse from a rubbing harness
GM bulletin PIT5203 covers an open fuse with P2122 on the 2013 Equinox and says to inspect the engine harness for rubbing. Check the fuse and the harness for chafed wiring before replacing sensors. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2127 from corrosion at the pedal connector
GM bulletin 08-06-04-012B covers an intermittent check engine light with pedal position codes, including P2127, and reduced engine power from connector corrosion, and GM replaces the pedal. Check the accelerator pedal connector for corrosion first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2127 with reduced power from the accelerator pedal
A 2017 Malibu owner reports reduced power at highway speed, and the dealer found P2127 and replaced the accelerator pedal. Check the pedal sensor and its connector first. This comes from owner reports, not a bulletin, and has not been verified.
P2128 among throttle and pedal codes
GM bulletin 08-06-04-012 lists P2128 among pedal and throttle sensor codes with an intermittent check engine light and reduced engine power on 2007 Suburban, Tahoe, Yukon and Escalade models. We only read the NHTSA summary, which does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2128 from pedal or throttle position sensor faults
GM bulletin 01746 covers pedal or throttle position sensor codes, including P2128, on 4.2L and 5.3L engines in 2004 Trailblazer, Envoy, Rainier and Bravada. Only the NHTSA summary was read. Check the pedal and throttle position sensor circuits first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2135 with reduced power from the throttle position sensor cover
GM bulletin 11-06-04-007C covers the check engine light and reduced power with P2135 on 2005 to 2013 GM trucks and SUVs, including the Silverado, and the repair is a new throttle position sensor cover. Check the throttle body connector and wiring first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2135 fixed by replacing the throttle position sensor cover
GM bulletin 12-06-04-003A covers reduced power with P2135 on 2006 to 2011 Impala and other GM cars and crossovers, and calls for replacing the throttle position sensor cover. Ask a dealer about the bulletin before buying a complete throttle body. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2135 with reduced power from chafed wiring on the HHR
GM bulletin 08-06-04-022 covers Engine Power Reduced with P2135 on the 2006 to 2008 Chevrolet HHR. It has the harness inspected for chafing and the ECM terminals re-crimped, so check the wiring before buying a pedal or throttle body. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2138 and reduced power from the pedal sensor connection
GM special coverage N182188250 says an interrupted accelerator pedal sensor connection on some GM models, including the 2016 to 2018 Malibu, 2017 to 2018 LaCrosse and 2018 Regal, puts the car in reduced engine power and sets P2138 while the pedal still works. Dealers replace the pedal assembly as needed and repair the engine harness on some Malibu engines, so check eligibility with a dealer before paying for the repair. We have not confirmed the coverage is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2176 with a reduced power message
Chevrolet bulletin 3707 covers a possible reduced power message with P2176 on the 2007 Tahoe and Yukon. We only read the NHTSA summary, which does not give the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2181 with overheating messages
GM PIC5764 covers overheating messages with P2181 on the 2013 Malibu. It says to check the water outlet at the rear of the cylinder head for plastic flashing or debris and to clean or replace it. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2181 shortly after a cold start, rear heater pipes
GM bulletin PIP4775B covers a service engine soon light shortly after a cold start with P2181 on the 2011 Savana and Express. It says to inspect the rear heater pipes for correct installation. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P219A and testing injectors for rich or lean
GM bulletin PIP5301 says that if the injector balance test does not isolate the cause of P219A, the injectors should be tested for running rich or lean. It covers 2010 to 2015 Equinox and Terrain, 2011 to 2015 Captiva and 2012 to 2015 Verano. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2227 with the check engine light on
GM bulletin PI1445 is a preliminary information bulletin for the check engine light with P2227 on 2013 to 2015 XTS, Impala, Camaro and LaCrosse models. The NHTSA summary does not state the cause or the repair, and only the summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2227 cleared by ECM reprogramming
GM bulletin 15-NA-059 covers ECM reprogramming for a check engine light with P2227 on the 2015 to 2016 Corvette. We read only the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2227 from moisture inside the charge air cooler
GM bulletin 18-NA-020 says moisture inside the charge air cooler can cause a check engine light with P2227, and calls for replacing the charge air cooler. It lists the 2019 Equinox and 2021 Terrain. Only the NHTSA summary was read, not the PDF. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2227 from charge air cooler icing in extreme cold
GM bulletin 22-NA-007 says charge air cooler icing in extreme cold can cause poor engine performance with a warning light and several codes including P2227 on the 2016 Cruze. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2227 from charge air cooler icing
GM bulletin 23-NA-002 covers charge air cooler icing with a check engine light and possible P2227 on full-size trucks, and lists the 2019 Silverado 1500 and 2020 Sierra 1500. We only read the NHTSA summary, which does not give a repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2263 from snow or ice in the air cleaner housing
GM bulletin PI1164B says snow or ice drawn into the air cleaner housing can restrict airflow and set P2263, with reduced engine power and a Service Engine message, on 2011 to 2016 Express and Savana. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2293 where the fuel rail is replaced, not the injection pump
Chevrolet preliminary information PIP5988 tells technicians not to replace the injection pump for P2293 and another fuel code, but to replace the fuel rail instead. It covers the 2024 Silverado 1500 and is also listed for the GMC Sierra 1500. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2431 after an ECM replacement
GM bulletin 3628 covers P2431 after an ECM replacement on some 2006 GM models, and says to inspect the ECM part number. A second GM bulletin covers the code with other codes on some 2006 models and has the ECM reprogrammed. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2431 with a melted air pump relay connector
One owner of a 2007 Chevrolet Trailblazer reports P2431 with a melted air pump relay connector and a worn out pump. This is a single complaint as filed by the owner and has not been verified by NHTSA. The source is owner reports, not a confirmed repair.
P2459 among diesel codes with the light on
GM preliminary information PIP5468F covers the check engine light with a list of diesel codes including P2459 on 2017 to 2019 Silverado and Sierra. It says to follow the published diagnostics first. Only the cached NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2463 with a Clean Exhaust Filter message
GM bulletin 10-06-05-002B covers a Clean Exhaust Filter message on Express vans, and notes that P2463 may be set. One 2017 owner reports the code twice, with the dealer running a service regeneration and finding no fault. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2463 in GM diagnostic tips for the diesel Cruze
GM bulletin 15-NA-084 gives diagnostic tips for rough running and poor acceleration on the diesel Cruze. The summary lists P2463 as diesel particulate filter soot accumulation next to several airflow and boost codes. GM lists them together, so all of them should be read before parts are replaced. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2463 soot events fixed by a forced regeneration
The source is an NHTSA owner complaint about a 2026 Silverado 3500 with the 6.6L Duramax. The owner reports three P2463 soot accumulation events within about 10,300 miles, each fixed by a dealer forced regeneration. This is a single owner report, not a confirmed cause.
P2534 with a stall or no start on heavy-duty trucks
GM bulletin 24-NA-124 covers a warning light, stall or no start with P2534 and several other codes on 2020 to 2024 Silverado and Sierra HD trucks. We read only the NHTSA summary, so the fix is not known to us. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2535 after a fuel pump driver module replacement
GM bulletin PIT6396 covers a check engine light with P2535 and related codes after the fuel pump driver module is replaced on 2020 to 2023 Silverado and Sierra trucks. The summary says engineering is working on a fix and that dealers are to install a diode in the meantime. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2563 from a chafed wire at the turbo vane position sensor
GM preliminary information PIP4636 names the turbo vane position sensor wiring as the check when P2563 and related turbo codes are stored with reduced power. It covers 2007 to 2009 diesel Express and Savana vans, and points to a chafed wire. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P258B after the brake kit is fitted
GM bulletin PIC-5149 says the check engine light comes on with P258B after the OHB brake kit is installed on the 2008 to 2009 HHR, per TSB 09-05-22-001A. The summary says dealers may reprogram the ECM or EBCM and replace the vacuum pump. Brakes are safety-critical, so have the vehicle inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P25A2 with loss of brake assist on GM trucks
GM bulletin 20NA073 covers loss of brake assist with P25A2, an engine computer code and several brake codes on 2019 to 2020 Silverado, Sierra and other models. The brake pedal may feel different and messages may show on the dash. Check the battery and charging first, as low voltage is part of this pattern, then have the brakes inspected rather than working on them yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2610 fixed by reprogramming the ECM
GM bulletin SB-08-06-04-035A reprograms the engine control module for several codes including P2610 on 2008 Cobalt SS, Solstice and Sky models. Check that the software is up to date first. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P261F from a coolant pump stuck on in GM bulletin 22-NA-077
GM bulletin 22-NA-077 gives repair information for a coolant pump stuck on, with P261F setting the check engine lamp after two faults. It covers 2021 to 2022 Chevrolet Blazer, Cadillac XT5 and XT6, and GMC Acadia. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2635 from hot-weather vapor in the fuel line
GM bulletin 17-NA-335 links hesitation, surging or stalling in hot weather with P2635 to vapor in the fuel feed line, and lists an updated fuel pump module. It also covers some GMC and Cadillac models. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2635 fixed by a fuel pump module replacement on the Colorado
GM 16-NA-225 gives a fuel pump module replacement procedure for P2635 on the 2016 to 2017 Colorado. Ask a dealer to check this bulletin before replacing other fuel parts. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2635 with fuel pump whine in the cold
GM bulletin 18-NA-103 covers in-tank fuel pump whine and start-and-stall below about 20 F, with P2635 among the codes. Note whether it only happens in cold weather. The bulletin is published on NHTSA, but we have not confirmed it is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2635 from a fuel pressure sensor stuck reading high
GM PIP5286B says P2635 on the 2014 to 2019 Silverado 1500 can come from a fuel pressure sensor that does not read low pressure and sticks reading high. Have the sensor reading checked against actual fuel pressure before replacing the pump. We only read the NHTSA summary, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2636 with a failed fuel transfer pump
The source is NHTSA owner complaints about dual-tank Duramax Silverado 3500 trucks. One owner reports P2636 for insufficient transfer pump flow, a stall, and a dealer finding the rear-to-front fuel transfer pump failed at 37,880 miles. A second owner reports a similar pump failure, and a GM recall covers this fuel system on Silverado 2500 trucks. These are owner reports only.
P2636 on dual fuel tank 6.6L diesels
GM 17067 is a product emissions recall for 6.6L LML diesel trucks with dual fuel tanks. It says P2636 sets when fuel is not transferred from the rear tank to the front tank fast enough. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2645 read as a rocker arm solenoid circuit
A 2014 Chevrolet Impala owner told NHTSA that a dealer said P2645 was the intake rocker arm control circuit solenoid and quoted a repair. This is one owner report and it needs testing to confirm. The source is owner reports, not a verified repair.
P2715 with slipping in reverse or third
GM bulletin 09-07-30-004F lists P2715 among codes for slipping in reverse or third and delayed engagement on 2006 to 2009 Silverado trucks. It points to a possibly cracked clutch housing and pump seal rings. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2723 with slipping in reverse or third
GM bulletin 09-07-30-004F covers slipping in reverse or third gear and delayed reverse or drive engagement on 2006 to 2009 six-speed models, with P2723 among the codes stored. It says to inspect the 1-2-3-4 and 3-5-R housing and the pump seal rings first. Check the fluid level and condition before that. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2723 with missing gears from a pressure control solenoid
GM bulletin PI-1131 covers missing gears and several pressure control solenoid codes, including P2723, on some 2011 GM vehicles. It says the cause may be a non-functioning pressure control solenoid. Check the transmission fluid level and condition first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2732 fixed by replacing the valve body
GM preliminary information PIP6002 says to replace the valve body assembly for no reverse with P2732 on the 2024 Silverado 1500. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2762 with erratic shifting
GM bulletin PI-0690 says 2011 to 2012 Chevrolet Express and GMC Savana vans may shift erratically with the check engine light on, and that technicians may find P2762 as history or active codes. We read only the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2797 with start/stop not working
GM bulletin 19-NA-200 covers start/stop inoperative with P2797 on 2019 to 2025 models including the Malibu, Equinox and Trailblazer. It gives a repair procedure for a replaced transmission auxiliary pump. Check the auxiliary pump first. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2797 with rough or no auto stop on hybrid trucks
GM bulletin PI-0209 covers a rough or inoperative auto stop with P2797 on 2009 to 2010 hybrid trucks and SUVs, and names a chafed auxiliary transmission pump harness. The vehicle note says a later bulletin, PIP4873A, advises not replacing the pump before diagnosis. Inspect the pump harness first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2817 from a damaged turbine shaft seal
GM preliminary information bulletin PIP6005 says a damaged transmission turbine shaft seal can cause P2817 on the 2024 Acadia and Traverse and the 2025 Enclave. The summary we read is from NHTSA only, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2817 with limp mode after a recall update
One owner of a 2020 Chevrolet Silverado 1500 reports limp mode and a permanent P2817, a solenoid stuck off, after a recall software update. The owner says the dealer and GM described a valve body mechanical failure. This is an owner account. The source is owner reports, not a confirmed repair.
P2817 that the dealer could not reproduce
A 2021 Chevrolet Colorado owner complaint to NHTSA reports P2817 and a general transmission code, which the dealer called faulty transmission codes. The dealer could not reproduce the problem. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P2820 as a pressure control solenoid fault
A 2019 Chevrolet Silverado 1500 owner complaint to NHTSA reports P2820, read as pressure control solenoid J performance or stuck off, along with a related code. An independent mechanic diagnosed the vehicle. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
P2820 with a valve body recall dispute
A 2020 Chevrolet Silverado 3500 owner reports P2820 stored along with a valve body recall and a special coverage dispute. It is an owner account only. The source is owner reports, not a bulletin. It needs testing to confirm.
P2C7A on 2020 to 2023 diesel trucks
GM bulletins PIP5682, PIP5888A and 23-NA-193 cover P2C7A on 2020, 2022 and 2023 Silverado and Sierra 1500 diesels. PIP5682 says an ECM calibration is under development, and an ECM calibration is the stated fix on 2022 trucks. Owners also report the NOx converter and EGR valve replaced more than once. Only the NHTSA summaries were read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P305F from an unsecured ground wire
GM bulletin PI1412A, a revision of PI1412, tells technicians to inspect for an unsecured ground wire at the auxiliary battery cables for P305F on the 2014 to 2016 Malibu. Check the auxiliary battery ground cables first, and stop driving if there is smoke or a burning smell. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P305F with underhood smoke or a burning odor
GM bulletin PIE0463 was an engineering request for field reports of underhood smoke or a burning odor with the lamp on and P305F on 2014 to 2018 Impala and Malibu models. It was superseded by PIE0463A, which ends the field request. Only the NHTSA summary was read, so it gives no fix. If you smell burning or see smoke, have the car inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0029 among many communication codes from a body control module ground
GM PIT5405B covers many communication codes, including U0029, with reduced power, steering assist or blank displays on 2014 to 2016 Silverado 1500. The cause given is the body control module ground at G218 and connectors X183 and X133. Reduced steering assist is a safety concern, so have the vehicle inspected. Only the NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0073 and U0100 with no crank from a backed-out transmission harness terminal
GM bulletin 08-07-30-021 ties U0073 and U0100 and other lost communication codes to a loss of the high-speed GMLAN network on 2007 to 2008 GM trucks and SUVs, including the Silverado 1500. Symptoms include an intermittent no crank, gauge fluctuation, door locks cycling and shifting problems. The repair is a backed-out terminal in the 6L80 transmission harness connector, so check that connector first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0073 and U0101 with water in the transmission and no forward gears
GM bulletin PIP-4678B links U0073 and U0101 on the 2010 Camaro to water inside the transmission, with no forward gears, converter clutch shudder or harsh shifts. Check the transmission fluid condition at the level check plug before chasing the network codes. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0100 at startup and the ECM wake-up circuit
GM bulletin PIT6198 covers a check engine light at startup with U0100 on 2020 to 2022 Silverado 1500, 2500HD and 3500HD. Dealers are to test the accessory wake-up circuit to the ECM for power, so check that circuit before replacing a module. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0101 with a Transmission Hot message on the Silverado 1500
GM bulletin PI-0531-B covers a "Transmission Hot - Idle Engine" message on the 2011 to 2013 Silverado 1500, and U0101 may be set with the check engine light on. The summary we read does not name the repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0104 with dead gauges or no crank
GM bulletin PIT5586E covers 2017 to 2020 full-size GM trucks and SUVs with gauges that are inoperative or fluctuating, no start or no crank, an SIR light and many other messages, with a code list that includes U0104. Dealers are told to check the Serial Data Gateway Module for logic lock or bad connector terminals. An SIR light means the airbag system should be inspected by a qualified shop. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0109 from a loose connection at the rear fuse box
GM PIC5655A covers loss of communication with the fuel pump control module, U0109, on 2011 to 2013 Volts. It points to circuit 1540 at the left rear fuse box, the F2RA fuse connection and the main power feed to that fuse box, for a loose connection or arcing. Inspect those first. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0111 fixed by a BECM calibration update
GM PIC5829 covers the service engine soon light with U0111 on 2011 to 2013 Volts and calls for updating the Battery Energy Control Module (BECM) with the latest calibrations. Check whether the update has been done. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0121 from a chafed brake module harness
GM bulletin PIT-4756 says ABS and StabiliTrak lights with U0121 and several brake codes on 2007 to 2009 Equinox, Torrent and Vue models can come from the harness to the brake module chafing on the transmission mount or a metal bracket. Brakes are safety critical, so have the harness and ABS system inspected rather than repaired at home. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0126 and U0452 from a body control module ground
GM PIT5405B covers 2014 to 2016 full-size GM trucks and SUVs with reduced power, steering assist loss, engine stall or blank displays and many codes, including U0126 and U0452. Dealers check the body control module ground at G218, where the dash insulator mat can be trapped under the eyelet, and inspect two connectors. Steering assist is a safety system, so have it inspected. Only the NHTSA summary was read, not the full bulletin. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0129 with an engine harness short
GM bulletin PIT5713 is preliminary information on an engine wiring harness shorting at the left front cylinder head on the 2019 to 2020 Silverado 1500 and Sierra 1500. It describes sweeping gauges, warning messages and a check engine light, and the cached file lists U0129 under it. Inspect the harness at that cylinder head first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0140 with door lock cycling and frozen gauges
GM bulletin PIT-4730A gives extra diagnostic steps for U0140 on many 2006 to 2011 GM models, including the Silverado 1500. Symptoms include door locks cycling while driving, an intermittent no start, a Service StabiliTrak message and a frozen speedometer and tachometer. Our summary of the bulletin is cut short, so ask a dealer for the full steps. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0146 from a shorted engine harness
GM bulletin PIT5713 links an engine wiring harness that shorts at the left front cylinder head to sweeping gauges, warning messages and many communication codes, including U0146, on 2019 to 2020 Silverado and Sierra 1500 trucks. Inspect that harness first. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0155 from a pinched data link branch on the 2014 Impala
GM bulletin PIC5894 covers multiple cluster warning lights and messages with U0155 and many other network codes on the 2014 Impala. GM says to inspect for a pinched data link connector branch in the instrument panel harness behind the instrument panel carrier. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0155 from water in body connector X901
GM bulletin PIT5422 covers an intermittent check engine light, dead interior lamps or a dead liftgate on 2010 to 2015 Equinox and Terrain, with U0155 and other network codes. GM says to inspect body harness connector X901 for water or corrosion and repair the connector and terminals. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0159 from the parking assist module
GM PIT5507E covers U0159 set in the instrument cluster or body control module on 2014 to 2018 full-size GM trucks and SUVs with ultrasonic park assist. It says to reprogram the parking assist control module and replace front park assist sensor rings that are missing scallops. An earlier bulletin said engineering was working on a new calibration. Only summaries were read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0164 from water or corrosion in the X901 connector
GM PIT5422 covers an intermittent check engine light and inoperative interior lamps or liftgate with U0164 among other communication codes on 2010 to 2015 Equinox and Terrain. It says to inspect body harness connector X901 for water intrusion or corrosion and repair the connector and terminals. Only the cached NHTSA summary was read. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0184 with a radio that has no communication
GM bulletin SB-16-NA-115 covers an inoperative radio with no communication and U0184 on 2014 Silverado 1500 trucks. The repair in the summary is a radio reprogram. We read only the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0184 with the air bag light on after a battery change
A 2013 Chevrolet Malibu owner told NHTSA the air bag light stayed on after a dead battery and a new battery, and read U0184, lost communication with the radio, along with an air bag code. This is an owner readout only. Air bag systems are safety-critical, so have the vehicle inspected by a qualified shop. The source is owner reports, not a verified repair.
U0212 that can set falsely
GM informational bulletin 20NA114 says U0212 can set falsely on 2020 CT4, CT5 and Corvette and 2021 Escalade, Suburban, Tahoe and Yukon models. We only read the NHTSA summary, so check the bulletin steps before replacing any module. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U029D and U029E from moisture at the NOx sensor connector
GM bulletin 17-NA-219 gives a diagnostic tip for U029D and U029E and related codes on some GM trucks: moisture can enter past a torn or missing seal in the NOx sensor wiring harness connector. If diagnosis leads to NOx sensor replacement, the tip says to inspect the mating chassis connector for corrosion and clean or repair it. Owners also report derate and exhaust fluid messages, and one cleared it with a new downstream sensor. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0420 from water in the brake module connector
GM bulletin PIT5499 covers the ABS or check engine light, a low brake fluid light with a full reservoir, or Service Trailer Brake, with U0420 and other codes, on 2015 to 2016 Colorado and Canyon. GM inspects the electronic brake module connector for water or corrosion and replaces the module and terminals if found. Owners also report loss of power steering. Because this involves brakes and steering, have it inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0422 with Service StabiliTrak and dead brake lights
GM bulletin 19NA202 covers a Service StabiliTrak message, rear stop lamps not working and the traction control light with U0422 and chassis codes on the 2016 to 2019 Malibu. The summary we read does not give the repair. Dead brake lights are a safety issue, so have it inspected. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0422 with dead gauges and no start on GM trucks
GM bulletin PIT5586 covers dead or fluctuating gauges, no start or no crank, airbag and suspension messages, a blank radio and dead HVAC controls with U0422 and other network codes on 2017 GM full-size trucks and SUVs. GM says to check the serial data gateway module X2 connector for terminal concerns, and a second bulletin, PIT5713, ties the code to an engine harness short. We have not confirmed the bulletins are still current, so this is labelled vehicle data rather than confirmed by bulletin.
U0428 with loss of power steering assist
GM PIT5405C covers loss of power steering assist on some GM trucks and SUVs, and the cached NHTSA summary lists U0428 under it. The summary does not describe a cause or repair. Steering is a safety system, so have it inspected rather than attempting repairs yourself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U1000 with a crank, no start from a reversed harness wire
GM program 15169 covers a 2015 City Express that cranks but will not start, with U1000 and related codes stored. A reversed wire in the engine harness can create a sneak circuit that stops the engine computer giving spark at start-up, and dealers revise the harness. Ask a dealer whether the program has been done. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U160F when several modules lose communication
A 2023 Chevrolet Suburban owner complaint to NHTSA says the dealer diagnosed lost communication with several modules, including steering, gateway, engine, body control and brakes, and retrieved U160F with several others. No warning light came on first. Because steering and brakes are involved, have the vehicle inspected rather than repaired at home. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
U160F among many communication faults
A 2022 Chevrolet Silverado 1500 owner complaint to NHTSA says the dealer reported numerous communication faults including U160F, alongside a front camera code. The source is owner reports, not a bulletin.
U18A2 on 2014 to 2016 full-size GM trucks and SUVs
GM information PIP5427 covers 2014 to 2016 Silverado, Tahoe, Suburban, Sierra, Yukon and Escalade models with the service engine soon light and U18A2 stored. It says to follow the published diagnostics, with one communication code taking priority over the other if both are set, before addressing the throttle code. We only read the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U2105 with power steering inoperative
GM bulletin 07-02-32-007 gives diagnostic tips for power steering that is inoperative or hard to turn, with a driver display message and several codes including U2105, on 2005 to 2008 Cobalt and HHR models. This is a steering system, so have it inspected by a qualified shop rather than repairing it yourself. We only read the NHTSA summary, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U2105 with no crank and lost module communication
GM bulletin 02114 covers a 2005 Equinox that will not crank, with loss of communication to the BCM, IPC, PCM, TCM and EBCM and several network codes including U2105. The vehicle note also mentions an owner report of limp mode. Check battery voltage and the ground connections first. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U2105 with stability and traction warnings
One owner told NHTSA that Service Active Handling and traction control messages came back with U2105 and other network codes after a recall repair on some Chevrolet cars. This is an owner report, not a bulletin. Stability systems are safety systems, so have the vehicle inspected. The source is owner complaints, so it is labelled vehicle data rather than confirmed by bulletin.
U2107 with power steering that stops working
GM bulletin 07-02-32-007 gives diagnostic tips for a power steering that stops working, with U2107 set along with several steering and module codes, on some 2005 to 2008 GM cars. An owner reports lost steering and power. Steering faults are safety-critical, so have the vehicle inspected rather than repaired at home. Only the NHTSA summary was read, not the bulletin itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U2107 with active handling and traction service messages
An owner complaint filed with NHTSA on a 2005 Corvette reports active handling, traction control and other service messages from electrical faults, with U2107 read even after a recall repair. The source is an owner report that has not been independently verified. Check battery condition and ground connections first. Because handling and traction systems are involved, have it inspected by a qualified shop.
U2603 with sudden loss of propulsion on the Volt
Owners of the 2016 to 2018 Chevrolet Volt report U2603 with sudden loss of propulsion, other codes and a BECM replacement. Owners cite GM bulletin 18-NA-261 and a special coverage, but we did not read either, so treat both as unverified. The source is owner reports to NHTSA.
U2624 from a short inside the battery control module
An NHTSA owner complaint on a 2018 Chevrolet Volt says a dealer found U2624 with a related code, tested the circuits and diagnosed an internal short in the battery energy control module. It caused loss of communication with the high-voltage battery modules, a change in propulsion mode and range without warning, and a car that could fail to start. Owners of 2016 to 2018 Volts report similar cases with a module replacement. High-voltage parts are dangerous, so have it checked by a hybrid-trained shop. The owner-cited GM bulletin was not read, and the source is owner reports, so this is labelled vehicle data.
P0017: Crankshaft and exhaust camshaft positions do not agree (bank 1, sensor B)
- Camaro 2010–2012 · Supported by vehicle data · 1 bulletin
- Equinox 2008–2016 · Supported by vehicle data · 2 bulletins
- Malibu 2007–2013 · Supported by vehicle data · 2 bulletins
- Traverse 2009–2012 · Supported by vehicle data · 1 bulletin
P0016: Crankshaft and intake camshaft positions do not agree (bank 1, sensor A)
- Camaro 2010–2012 · Supported by vehicle data · 1 bulletin
- Equinox 2008–2016 · Supported by vehicle data · 2 bulletins
- Malibu 2007–2013 · Supported by vehicle data · 2 bulletins
- Silverado 1500 2014 · Supported by vehicle data · 1 bulletin
- Traverse 2009–2012 · Supported by vehicle data · 1 bulletin
P0700: Transmission module requests the check engine light
- Silverado 1500 2023–2025 · Supported by vehicle data · 1 bulletin
P0171: Engine computer has reached its limit adding fuel on bank 1: the mixture is lean
- Silverado 1500 2020 · Supported by vehicle data · 1 bulletin
- Sonic 2012–2014 · Supported by vehicle data · 1 bulletin
P0010: Intake camshaft actuator (VVT solenoid) circuit fault, bank 1
- Malibu 2013 · Supported by vehicle data · 1 bulletin
P0172: Engine computer has reached its limit removing fuel on bank 1: the mixture is rich
- Equinox 2010 · Supported by vehicle data · 1 bulletin
B0001: Driver front airbag first-stage firing circuit fault
- Silverado 1500 2020–2023 · Supported by vehicle data · 1 bulletin
- Tahoe 2020–2023 · Supported by vehicle data · 1 bulletin
B0012: Fault in the passenger-side front airbag firing circuit (resistance low)
- Cruze 2012 · Supported by vehicle data · 1 bulletin
- Malibu 2004–2005 · Supported by vehicle data · 1 bulletin
B0013: Driver steering wheel air bag, stage 2 firing circuit fault
- Cobalt 2007–2009 · Supported by vehicle data · 2 bulletins
- Cruze 2012 · Supported by vehicle data · 1 bulletin
- HHR 2008–2009 · Supported by vehicle data · 2 bulletins
- Malibu 2010–2011 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2018 · Possible — needs testing
B0014: Driver seat side airbag deployment loop fault
- Impala 2009 · Supported by vehicle data · 1 bulletin
- Malibu 2011 · Supported by vehicle data
B0015: Driver seat belt pretensioner firing circuit fault
- Equinox 2010 · Supported by vehicle data · 1 bulletin
- Impala 2009–2012 · Supported by vehicle data · 3 bulletins
- Silverado 1500 2012 · Possible — needs testing
B0026: GM frontal airbag deployment loop fault
- Avalanche 2003–2006 · Supported by vehicle data · 2 bulletins
- Impala 2001 · Supported by vehicle data
- Trailblazer 2005–2006 · Possible — needs testing · 1 bulletin
B0041: Airbag deployment loop open, left front (driver-side) side airbag circuit (Chevrolet)
- All models 2000 · Supported by vehicle data · 1 bulletin
- Corvette 2012 · Supported by vehicle data
- Impala 2000 · Supported by vehicle data
B0052: Airbag computer logged a deployment command (Chevrolet and GMC)
- Silverado 1500 2012–2016 · Supported by vehicle data
B0074: Passenger presence sensor circuit fault
- Camaro 2010–2011 · Supported by vehicle data · 1 bulletin
- Equinox 2009 · Supported by vehicle data
B0081: Passenger presence (seat occupant sensing) system fault
- Camaro 2010–2011 · Supported by vehicle data · 1 bulletin
- Cobalt 2006–2008 · Supported by vehicle data · 1 bulletin
- Silverado 2009 · Supported by vehicle data · 2 bulletins
B0085: GM left front side impact sensor circuit fault
- Silverado 1500 2010–2013 · Supported by vehicle data
- Traverse 2015 · Supported by vehicle data
- Tahoe 2007–2008 · Possible — needs testing · 1 bulletin
B101D: Control module internal hardware fault (Chevrolet and GMC; module varies)
- Impala 2011–2015 · Supported by vehicle data · 3 bulletins
- Malibu 2013–2015 · Supported by vehicle data · 3 bulletins
- Silverado 1500 2011–2015 · Supported by vehicle data · 3 bulletins
B1325: Control module power circuit fault (GM)
- Malibu 2004–2006 · Supported by vehicle data · 1 bulletin
B2960: Passlock / theft-deterrent security sensor fault (GM)
- Impala 2000–2005 · Supported by vehicle data · 1 bulletin
- Silverado 1999–2001 · Supported by vehicle data · 1 bulletin
C0035: Left front wheel speed sensor circuit fault (GM)
- Colorado 2004–2006 · Supported by vehicle data · 1 bulletin
C0040: Right front wheel speed sensor circuit (GM) or brake lamp switch (Honda)
- Colorado 2004–2005 · Supported by vehicle data
C0045: Left rear wheel speed sensor circuit fault (GM)
- Equinox 2010–2012 · Supported by vehicle data · 1 bulletin
- Express 2008–2010 · Supported by vehicle data · 1 bulletin
- Malibu 2004 · Supported by vehicle data · 1 bulletin
C0050: Right rear wheel speed sensor circuit fault (GM)
- Equinox 2006–2007 · Supported by vehicle data · 1 bulletin
- Express 2003–2010 · Supported by vehicle data · 2 bulletins
- Malibu 2004 · Supported by vehicle data · 1 bulletin
- Traverse 2009–2017 · Supported by vehicle data · 2 bulletins
C0131: Brake pressure circuit fault (GM)
- Sonic 2012 · Supported by vehicle data · 1 bulletin
C0161: ABS computer does not trust the brake pedal switch signal
- Express 2012 · Supported by vehicle data · 1 bulletin
- Malibu 2004–2007 · Supported by vehicle data · 1 bulletin
- Malibu Classic 2008 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2012 · Supported by vehicle data · 1 bulletin
- Suburban 2012 · Supported by vehicle data · 1 bulletin
C0186: Sideways (lateral) acceleration sensor signal faulty or not believable
- Equinox 2007–2017 · Supported by vehicle data · 2 bulletins
- Malibu 2015 · Supported by vehicle data · 1 bulletin
- Trailblazer 2006 · Supported by vehicle data · 1 bulletin
C0196: Stability system sees a sensor or motion fault (GM)
- Equinox 2010–2017 · Supported by vehicle data
- Malibu 2015 · Supported by vehicle data · 1 bulletin
- Volt 2012–2013 · Supported by vehicle data · 1 bulletin
C0265: ABS computer reports a fault in its relay circuit
- Avalanche 2002–2006 · Supported by vehicle data · 1 bulletin
- Silverado 1500 1999–2006 · Supported by vehicle data · 2 bulletins
- SSR 2003–2005 · Supported by vehicle data · 1 bulletin
- Suburban 2000–2006 · Supported by vehicle data · 1 bulletin
- Tahoe 2000–2006 · Supported by vehicle data · 1 bulletin
- Trailblazer 2002–2005 · Supported by vehicle data · 1 bulletin
C0277: Brake pedal position sensor fault (GM)
- Malibu 2005–2018 · Supported by vehicle data · 2 bulletins
C0287: Stability computer flags a fault in a motion-sensing signal circuit
- Equinox 2010–2017 · Supported by vehicle data · 1 bulletin
- Malibu 2009–2015 · Supported by vehicle data · 2 bulletins
- Suburban 2000–2002 · Supported by vehicle data · 1 bulletin
- Tahoe 2000–2002 · Supported by vehicle data · 1 bulletin
- Trailblazer 2006 · Supported by vehicle data · 1 bulletin
C0455: Steering angle sensor fault (GM)
- Silverado 1500 2007–2016 · Supported by vehicle data · 1 bulletin
- Suburban 2005–2013 · Supported by vehicle data · 2 bulletins
- Tahoe 2005–2013 · Supported by vehicle data · 2 bulletins
C0545: Electric power steering torque sensor fault (GM)
- Colorado 2015 · Supported by vehicle data · 1 bulletin
- Malibu 2004–2009 · Supported by vehicle data · 3 bulletins
C0550: A chassis control module reports an internal fault
- Avalanche 2003 · Supported by vehicle data · 1 bulletin
- Aveo 2008–2009 · Supported by vehicle data · 1 bulletin
- Cobalt 2005–2008 · Supported by vehicle data · 1 bulletin
- Equinox 2007–2011 · Supported by vehicle data · 2 bulletins
- HHR 2006–2008 · Supported by vehicle data · 1 bulletin
- Trailblazer 2004 · Supported by vehicle data · 1 bulletin
C056D: A control module reports an internal hardware fault
- Volt 2018 · Supported by vehicle data
C0710: Steering wheel position sensor signal fault (GM)
- Express 2008 · Supported by vehicle data · 1 bulletin
- Suburban 2012–2015 · Supported by vehicle data · 1 bulletin
C0800: GM chassis control module voltage fault
- Cruze 2012–2014 · Supported by vehicle data · 2 bulletins
- Volt 2011–2013 · Supported by vehicle data · 1 bulletin
C1221: Left front wheel speed sensor signal is zero (Chevrolet)
- Impala 2001–2002 · Supported by vehicle data
C1226: Excessive wheel speed variation at one front wheel (GM)
- Impala 2002 · Supported by vehicle data
- Venture 1998–1999 · Supported by vehicle data · 1 bulletin
C1233: On Chevrolet and Buick, right front wheel speed sensor circuit open or shorted
- Impala 2001–2003 · Supported by vehicle data · 1 bulletin
- Monte Carlo 2001–2003 · Supported by vehicle data · 1 bulletin
- Venture 2001–2003 · Supported by vehicle data · 1 bulletin
C159C: Trailer brake control switch fault (Chevrolet, GMC)
- Silverado 1500 2022–2023 · Supported by vehicle data · 1 bulletin
P0008: Engine position system performance, bank 1: the crankshaft-to-camshaft timing relationship has drifted out of range
- All models 2007–2012 · Supported by vehicle data · 2 bulletins
P0009: Engine position system performance, bank 2: the crankshaft and bank 2 camshaft timing no longer agree
- All models · Supported by vehicle data · 2 bulletins
P0013: Exhaust camshaft timing solenoid circuit, bank 1: the engine computer sees an open or faulty circuit to the bank 1 exhaust cam timing solenoid
- Equinox 2010–2012 · Supported by vehicle data · 1 bulletin
- Malibu 2013–2014 · Supported by vehicle data · 2 bulletins
P0018: Crankshaft and camshaft positions do not agree on bank 2, sensor A
- All models 2007–2012 · Supported by vehicle data · 2 bulletins
P0019: Crankshaft-to-camshaft correlation, bank 2 camshaft B: the bank 2 exhaust camshaft signal is out of step with the crankshaft
- All models 2007–2012 · Supported by vehicle data · 2 bulletins
P0024: Bank 2 'B' camshaft (usually exhaust) timing is more advanced than commanded, or the system is not performing
- Impala 2014 · Supported by vehicle data · 1 bulletin
P0036: A fault in the heater control circuit of the downstream oxygen sensor on bank 1
- Traverse 2013–2015 · Supported by vehicle data · 1 bulletin
- Cobalt 2005 · Possible — needs testing · 1 bulletin
P003A: Turbo boost control position (vane or actuator) outside the range the computer has learned
- Express 2004–2009 · Supported by vehicle data · 2 bulletins
- Silverado 3500 HD 2006 · Supported by vehicle data
P0046: Turbocharger boost control circuit performance fault
- Silverado 1500 2018 · Supported by vehicle data · 1 bulletin
P0068: The airflow measured by the MAF or MAP sensor doesn't match the airflow the computer expects for the current throttle opening
- Malibu 2013–2017 · Supported by vehicle data · 1 bulletin
P0088: Fuel rail pressure higher than the engine computer wants
- Silverado 2500 HD 2010–2016 · Supported by vehicle data · 3 bulletins
P0089: Fuel pressure regulator not holding the pressure the computer asks for
- Equinox 2010–2023 · Supported by vehicle data · 2 bulletins
- Silverado 1500 2014–2024 · Supported by vehicle data · 2 bulletins
- Traverse 2024–2025 · Supported by vehicle data · 1 bulletin
P0090: Fuel pressure regulator control circuit fault
- Traverse 2024–2025 · Supported by vehicle data · 1 bulletin
P0091: Fuel pressure regulator control circuit reading low (direct-injection fuel pump)
- Traverse 2020–2023 · Supported by vehicle data
P0097: Intake air temperature sensor 2 circuit signal too low
- Equinox 2013–2014 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2017 · Supported by vehicle data · 1 bulletin
P00B7: Coolant flow through the engine cooling system lower than the computer expects
- Colorado 2016 · Supported by vehicle data
P00C6: Fuel rail pressure too low while the engine is cranking
- Camaro 2016 · Supported by vehicle data · 1 bulletin
- Equinox 2010–2015 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2014–2018 · Supported by vehicle data · 2 bulletins
P00FF: Body control module asked for the check engine light to be turned on
- Suburban 2025 · Supported by vehicle data · 2 bulletins
- Tahoe 2025 · Supported by vehicle data · 2 bulletins
P0101: Airflow sensor reading doesn't match what the engine computer expects for the throttle opening
- Sonic 2012–2014 · Supported by vehicle data · 1 bulletin
P0106: Manifold pressure (MAP) sensor reading doesn't match what the engine computer expects
- Silverado 1500 2021 · Supported by vehicle data · 1 bulletin
P0107: Manifold pressure or barometric pressure sensor signal too low
- Silverado 1500 2019 · Supported by vehicle data · 1 bulletin
- Trailblazer 2002–2004 · Supported by vehicle data · 1 bulletin
P0112: The intake air temperature sensor signal reads too low in voltage, which the computer interprets as extremely hot intake air
- Malibu 1997–2002 · Supported by vehicle data · 1 bulletin
P0117: Engine coolant temperature sensor circuit reads too low (shorted toward ground)
- Cruze 2011 · Supported by vehicle data
P011A: The two engine coolant temperature sensors disagree with each other
- Express 2007–2008 · Supported by vehicle data · 1 bulletin
P0120: Throttle or pedal position sensor A signal outside its normal range
- Silverado 1500 2003 · Supported by vehicle data · 1 bulletin
P0121: The throttle position sensor A signal doesn't agree with what the engine computer expects, even though the voltage is within range
- Tahoe 2006–2018 · Supported by vehicle data · 1 bulletin
P0122: The throttle position sensor A signal voltage is below its normal range
- Traverse 2010–2011 · Supported by vehicle data · 1 bulletin
P0131: The engine computer sees a voltage that is too low on the upstream oxygen sensor circuit for bank 1
- Aveo 2004–2008 · Supported by vehicle data · 1 bulletin
- Traverse 2013–2015 · Supported by vehicle data · 1 bulletin
P0134: The upstream oxygen sensor on bank 1 is giving the computer no signal activity
- Cavalier 2002 · Supported by vehicle data · 1 bulletin
P0138: The downstream oxygen sensor on bank 1 is reporting a voltage that stays too high
- Equinox 2018–2019 · Supported by vehicle data · 1 bulletin
P0146: The computer sees no signal from the oxygen sensor farthest downstream on bank 1 (sensor 3)
- Astro Van 1997 · Supported by vehicle data · 1 bulletin
P0155: Heater circuit fault on the upstream oxygen sensor on the second bank of cylinders (bank 2, sensor 1)
- Silverado 1500 2004 · Supported by vehicle data · 1 bulletin
P015B: Front oxygen sensor slow to respond, lean to rich (bank 1, sensor 1)
- Malibu 2013–2016 · Supported by vehicle data · 1 bulletin
- Cruze 2012–2017 · Possible — needs testing · 1 bulletin
P0161: Oxygen sensor heater circuit fault, bank 2 sensor 2
- Tahoe 2004 · Supported by vehicle data · 1 bulletin
P0174: Engine computer has reached its limit adding fuel on bank 2: the mixture is lean
- Silverado 1500 2020 · Supported by vehicle data · 1 bulletin
P0175: Engine computer has reached its limit removing fuel on bank 2: the mixture is rich
- Equinox 2010 · Supported by vehicle data · 1 bulletin
P018B: Fuel pressure sensor B not reading plausibly
- Tahoe 2015–2016 · Supported by vehicle data · 1 bulletin
P018C: Second fuel pressure sensor signal too low
- Silverado 1500 2019 · Supported by vehicle data · 1 bulletin
P0191: Fuel rail pressure sensor reading does not make sense
- Equinox 2010–2019 · Supported by vehicle data · 2 bulletins
- Express 2006–2017 · Supported by vehicle data · 3 bulletins
P0192: Fuel rail pressure sensor signal reads too low
- Silverado 1500 2014–2016 · Supported by vehicle data · 1 bulletin
P0200: Fault in an injector circuit, cylinder not identified
- Camaro 2010 · Supported by vehicle data · 1 bulletin
P0201: The engine computer has detected an electrical fault in the cylinder 1 fuel injector circuit
- Traverse 2009–2015 · Supported by vehicle data · 1 bulletin
P0202: Fuel injector circuit fault on cylinder 2
- Suburban 2021–2022 · Supported by vehicle data · 1 bulletin
P0203: The engine computer has detected an electrical fault in the cylinder 3 fuel injector circuit
- Traverse 2009–2015 · Supported by vehicle data · 1 bulletin
P0204: Cylinder 4 fuel injector circuit fault
- Silverado 1500 2004–2022 · Supported by vehicle data · 2 bulletins
P0205: Fault in the electrical circuit for the fuel injector on cylinder 5
- Silverado 1500 2020–2022 · Supported by vehicle data · 2 bulletins
P0206: Cylinder 6 fuel injector circuit fault
- Silverado 1500 2020–2021 · Supported by vehicle data · 1 bulletin
P0207: Cylinder 7 fuel injector circuit fault
- Silverado 1500 2004–2005 · Supported by vehicle data · 2 bulletins
P0208: The engine computer found an electrical fault in the control circuit of fuel injector 8
- Camaro 2010 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2004–2005 · Supported by vehicle data · 1 bulletin
P0216: Fuel injection timing control circuit fault
- Silverado 1500 2021–2022 · Supported by vehicle data · 1 bulletin
P0220: The engine computer sees a signal from throttle or pedal position sensor B that does not make sense
- Silverado 1500 2003 · Supported by vehicle data · 1 bulletin
- Tahoe 2003 · Supported by vehicle data · 1 bulletin
P0222: The second throttle (or pedal) position sensor signal is reading lower than its circuit should ever allow, so the computer treats it as an open or shorted circuit
- Traverse 2010–2011 · Supported by vehicle data · 1 bulletin
P0236: Turbo boost sensor reading does not make sense
- Cruze 2016–2019 · Supported by vehicle data · 1 bulletin
P0237: Turbo boost pressure sensor signal too low
- Equinox 2023–2026 · Supported by vehicle data · 1 bulletin
P0265: Cylinder 2 fuel injector circuit reads high voltage
- Camaro 2016 · Supported by vehicle data · 2 bulletins
P0299: Turbocharger or supercharger is producing less boost than the engine computer requested
- Silverado 1500 2022–2023 · Supported by vehicle data · 1 bulletin
P0300: Random or multiple-cylinder misfire detected
- Equinox 2018 · Supported by vehicle data · 1 bulletin
P0307: Misfire detected in cylinder 7
- Silverado 1500 2002–2022 · Supported by vehicle data · 3 bulletins
- Tahoe 2002–2022 · Supported by vehicle data · 3 bulletins
P0308: Misfire detected in cylinder 8
- Silverado 1500 2002–2022 · Supported by vehicle data · 3 bulletins
- Tahoe 2002–2022 · Supported by vehicle data · 3 bulletins
P0315: The computer has not finished learning the crankshaft position pattern, or the pattern it sees no longer matches what it stored
- Corvette 2023 · Supported by vehicle data · 1 bulletin
P0324: Knock control system error
- Silverado 1500 2014 · Supported by vehicle data · 1 bulletin
- Spark 2014–2015 · Supported by vehicle data · 1 bulletin
- Trailblazer 2024 · Supported by vehicle data · 1 bulletin
- Trax 2024 · Supported by vehicle data · 1 bulletin
P0327: Knock sensor 1 on bank 1 is sending a signal that is too low
- Uplander 2005 · Supported by vehicle data · 1 bulletin
P0331: Knock sensor 2 (bank 2) signal is outside the expected range or performance
- Camaro 2019–2022 · Supported by vehicle data · 2 bulletins
- Colorado 2015–2024 · Supported by vehicle data · 5 bulletins
P0332: Knock sensor 2 circuit voltage low (bank 2)
- Avalanche 2002 · Supported by vehicle data · 1 bulletin
- Camaro 1998–2002 · Supported by vehicle data · 1 bulletin
- Corvette 1998–2002 · Supported by vehicle data · 1 bulletin
- Silverado 1500 1999–2002 · Supported by vehicle data · 1 bulletin
- Suburban 1999–2002 · Supported by vehicle data · 1 bulletin
- Uplander 2005 · Supported by vehicle data · 1 bulletin
P0333: Knock sensor 2 circuit fault on bank 2 (the side of the engine away from cylinder 1)
- Silverado 1500 2014–2018 · Supported by vehicle data · 1 bulletin
P0335: Crankshaft position sensor A circuit fault
- Avalanche 2007–2008 · Supported by vehicle data · 1 bulletin
- Impala 2006 · Supported by vehicle data · 1 bulletin
- Monte Carlo 2006 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2007–2008 · Supported by vehicle data · 1 bulletin
- Suburban 2007–2008 · Supported by vehicle data · 1 bulletin
- Tahoe 2007–2008 · Supported by vehicle data · 1 bulletin
P0340: Camshaft position sensor circuit fault (bank 1 or single sensor)
- Impala 2006 · Supported by vehicle data · 1 bulletin
- Monte Carlo 2006 · Supported by vehicle data · 1 bulletin
P0341: Camshaft position sensor signal out of expected range (bank 1 or single sensor)
- Impala 2006 · Supported by vehicle data · 1 bulletin
- Monte Carlo 2006 · Supported by vehicle data · 1 bulletin
P0358: The computer found a fault in the primary or secondary circuit of ignition coil H (cylinder 8 by the usual reading)
- Colorado 2004 · Supported by vehicle data · 1 bulletin
- Silverado 2014 · Supported by vehicle data · 1 bulletin
P0365: Camshaft position sensor B circuit, bank 1: the engine computer sees a missing or faulty signal from the bank 1 exhaust camshaft sensor
- Colorado 2015–2022 · Supported by vehicle data · 1 bulletin
P0380: The computer found a fault in glow plug circuit A on a diesel engine
- Silverado 1500 2001–2004 · Supported by vehicle data · 1 bulletin
P0381: The computer found a fault in the glow plug warning lamp circuit on a diesel engine
- Silverado 2500 HD 2024–2025 · Supported by vehicle data · 1 bulletin
- Silverado 3500 HD 2024–2025 · Supported by vehicle data · 1 bulletin
P0403: EGR control circuit electrical fault
- Cruze 2017–2018 · Supported by vehicle data · 1 bulletin
P0410: Secondary air injection system fault
- Impala 1994–1996 · Supported by vehicle data · 1 bulletin
P0411: Secondary air injection flow not as expected
- Colorado 2008 · Supported by vehicle data · 1 bulletin
P0422: Main catalytic converter not cleaning exhaust well enough
- Silverado 2500 HD 2024 · Supported by vehicle data · 2 bulletins
P0442: EVAP system small leak detected
- Cruze 2011–2013 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2019–2025 · Supported by vehicle data · 1 bulletin
- Trax 2021–2022 · Supported by vehicle data · 1 bulletin
P0446: EVAP vent control performance problem
- Silverado 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0449: EVAP vent valve circuit fault
- Silverado 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0451: Fuel tank pressure sensor reading out of its expected range
- Silverado 1500 2009–2010 · Supported by vehicle data · 1 bulletin
P0453: The evaporative system pressure sensor is sending a voltage that is too high
- All models 2008–2009 · Supported by vehicle data · 1 bulletin
P0455: EVAP system large leak detected
- Silverado 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0458: The computer sees a low voltage on the EVAP purge control valve circuit
- Volt 2016–2018 · Supported by vehicle data · 1 bulletin
P0462: The fuel level sensor signal is lower than its normal range
- Corvette 2020 · Supported by vehicle data · 1 bulletin
P0463: The fuel level sensor signal is higher than its normal range
- Impala 2008–2009 · Supported by vehicle data · 1 bulletin
- Silverado 2007–2008 · Supported by vehicle data · 1 bulletin
- Uplander 2005–2007 · Supported by vehicle data · 1 bulletin
P0480: Cooling fan 1 control circuit fault: the computer commanded the fan and did not see the expected response
- Camaro 2016 · Supported by vehicle data · 1 bulletin
- Impala 2006–2011 · Supported by vehicle data · 1 bulletin
P0481: Cooling fan 2 control circuit fault
- Equinox 2005 · Supported by vehicle data · 1 bulletin
- Impala 2006–2011 · Supported by vehicle data · 1 bulletin
P0489: The computer sees a low voltage in the EGR valve control circuit
- Volt 2016–2018 · Supported by vehicle data · 1 bulletin
P0496: EVAP purge flow when purge should be off
- Trailblazer 2021–2025 · Supported by vehicle data · 1 bulletin
P0497: EVAP system low purge flow
- Volt 2011–2015 · Supported by vehicle data · 1 bulletin
P0498: EVAP vent valve control circuit low: the wire to the valve that seals the fuel vapour system is reading too low
- Malibu 2017 · Supported by vehicle data
- Silverado 1500 2019–2020 · Supported by vehicle data
P0499: EVAP vent valve control circuit high: the wire to the valve that seals the fuel vapour system is reading too high
- Avalanche 2008 · Supported by vehicle data
- Silverado 1500 2019–2020 · Supported by vehicle data
P04FB: Crankcase ventilation pressure sensor reading does not make sense
- Blazer 2020–2025 · Supported by vehicle data · 1 bulletin
- Equinox 2025 · Supported by vehicle data
P0502: The vehicle speed sensor signal is lower than the computer expects
- Corvette 2014–2015 · Supported by vehicle data · 1 bulletin
- Kodiak 2006–2009 · Supported by vehicle data · 1 bulletin
P0503: The computer is getting a vehicle speed signal that is erratic, drops out, or reads too high
- Corvette 2015 · Supported by vehicle data · 2 bulletins
P0506: Idle control system RPM lower than expected
- Equinox 2019 · Supported by vehicle data · 1 bulletin
- Impala 2014 · Supported by vehicle data · 1 bulletin
- Malibu 2019 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2014–2019 · Supported by vehicle data · 1 bulletin
- Traverse 2018 · Supported by vehicle data · 1 bulletin
P050D: Cold start rough idle
- Colorado 2020 · Supported by vehicle data · 1 bulletin
- Cruze 2016–2018 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2014–2020 · Supported by vehicle data · 1 bulletin
- Traverse 2024–2025 · Supported by vehicle data · 2 bulletins
- Volt 2016–2017 · Supported by vehicle data · 1 bulletin
P050F: Not enough vacuum for the brake booster
- Malibu 2016–2017 · Supported by vehicle data · 1 bulletin
- Traverse 2018 · Supported by vehicle data · 2 bulletins
P0513: Immobilizer key not recognized (incorrect immobilizer key)
- Impala 2014–2016 · Supported by vehicle data · 1 bulletin
P0521: Engine oil pressure sensor or switch range/performance
- Silverado 1500 2019 · Supported by vehicle data · 1 bulletin
- Trailblazer 2021 · Supported by vehicle data · 1 bulletin
- Trax 2024 · Supported by vehicle data · 1 bulletin
P0522: Engine oil pressure sensor or switch circuit reading too low in voltage
- Avalanche 2004 · Supported by vehicle data · 3 bulletins
- Express 2004 · Supported by vehicle data · 3 bulletins
- Silverado 1500 2004–2009 · Supported by vehicle data · 4 bulletins
P0523: Engine oil pressure sensor or switch circuit reading too high in voltage
- Tahoe 2004 · Supported by vehicle data · 2 bulletins
P0550: The computer is not getting a usable signal from the power steering pressure sensor or switch.
- Trailblazer 2002–2005 · Supported by vehicle data · 1 bulletin
P0556: Brake booster pressure sensor circuit range or performance
- Malibu 2017–2019 · Supported by vehicle data
P0562: System voltage low
- Silverado 1500 2019 · Supported by vehicle data · 1 bulletin
P0563: The computer sees system voltage that is too high
- Silverado 2500 HD 2024 · Supported by vehicle data · 1 bulletin
- Silverado 3500 HD 2024 · Supported by vehicle data · 1 bulletin
P0573: Cruise control or brake switch A circuit reading high
- Avalanche 2007 · Supported by vehicle data
P0599: Thermostat heater control circuit voltage too high
- Cruze 2012 · Supported by vehicle data
P059F: Active grille air shutter system fault: the movable shutters behind the grille are not moving or reporting as expected
- Colorado 2014–2015 · Supported by vehicle data · 2 bulletins
P0601: Control module internal memory checksum error
- Malibu 2016–2018 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2016–2018 · Supported by vehicle data · 1 bulletin
P0604: Internal memory (RAM) fault inside the engine or powertrain control module
- Malibu 2008–2010 · Supported by vehicle data · 1 bulletin
P0606: A control module found a fault in its own processor or programming
- Silverado 1500 2019–2020 · Supported by vehicle data · 2 bulletins
P0609: The engine computer cannot pass its vehicle speed signal (output B) to other modules
- Express 2003–2005 · Supported by vehicle data · 1 bulletin
P0615: Problem in the starter relay circuit
- Traverse 2014 · Supported by vehicle data
P0622: Alternator field control circuit fault: the engine computer sees a bad signal on the wire that tells the alternator how hard to charge
- Cruze 2016 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2011–2013 · Supported by vehicle data · 1 bulletin
P0641: The 5-volt reference supply (circuit A) that powers several engine sensors is out of range
- Camaro 2016–2017 · Supported by vehicle data · 1 bulletin
- Equinox 2013–2015 · Supported by vehicle data · 1 bulletin
- Cobalt 2010 · Possible — needs testing
P0650: Check engine light circuit fault: the engine computer sees a problem in the circuit that switches the malfunction indicator lamp
- Impala 2001–2002 · Supported by vehicle data · 1 bulletin
- Monte Carlo 2001–2002 · Supported by vehicle data · 1 bulletin
P0651: The 5-volt reference supply (circuit B) that powers a group of sensors is out of range
- Malibu 2013–2019 · Supported by vehicle data · 1 bulletin
P069E: Fuel pump control module requested MIL illumination
- Colorado 2016 · Supported by vehicle data
- Impala 2012–2014 · Supported by vehicle data · 1 bulletin
- Malibu 2013–2014 · Supported by vehicle data · 1 bulletin
P06DA: Oil pressure control solenoid circuit open or high resistance
- Silverado 1500 2019–2021 · Supported by vehicle data · 2 bulletins
- Tahoe 2018–2020 · Supported by vehicle data · 2 bulletins
- Volt 2016–2018 · Possible — needs testing
P06DD: Oil pump pressure control not responding, as if stuck off
- Silverado 1500 2014–2021 · Supported by vehicle data · 3 bulletins
P06DE: Engine oil pressure control circuit stuck on
- Cruze 2016–2019 · Supported by vehicle data · 1 bulletin
- Impala 2013–2015 · Supported by vehicle data · 1 bulletin
- Malibu 2013–2019 · Supported by vehicle data · 2 bulletins
P0701: Transmission control system range or performance problem
- Silverado 2011–2014 · Supported by vehicle data · 1 bulletin
P0705: Fault in the transmission range sensor circuit (gear selector position input)
- Spark 2013 · Supported by vehicle data · 1 bulletin
P0706: Transmission range sensor signal out of range or not plausible
- Silverado 2001–2005 · Supported by vehicle data · 1 bulletin
P0707: Transmission range sensor circuit signal too low
- W-Series 2007–2010 · Supported by vehicle data · 1 bulletin
P0708: Gear position (range) sensor signal reads too high
- Silverado 2500 HD 2004 · Supported by vehicle data
- Silverado 1500 2020 · Possible — needs testing
P0717: No signal from the transmission input or turbine speed sensor
- Equinox 2016 · Supported by vehicle data · 1 bulletin
- Silverado 2013 · Supported by vehicle data · 1 bulletin
P0721: Transmission output shaft speed sensor signal out of its expected range
- Silverado 1500 2001–2004 · Supported by vehicle data · 1 bulletin
P0723: Output shaft speed sensor signal drops in and out
- Malibu 2017 · Supported by vehicle data · 1 bulletin
- Cruze 2011 · Possible — needs testing
P0729: Gear 6 incorrect ratio
- Silverado 1500 2011–2014 · Supported by vehicle data · 1 bulletin
P0730: Transmission gear ratio does not match the selected gear
- Malibu 2019–2020 · Supported by vehicle data · 1 bulletin
P0736: Reverse gear ratio is wrong
- Silverado 2500 HD 2001–2019 · Supported by vehicle data · 1 bulletin
P073E: Transmission unable to engage reverse
- Equinox 2025 · Supported by vehicle data · 1 bulletin
P0741: Torque converter clutch not engaging as commanded
- Colorado 2015–2016 · Supported by vehicle data · 1 bulletin
P0742: Torque converter clutch stuck on
- Silverado 2500 HD 2001–2013 · Supported by vehicle data · 1 bulletin
- Venture 2003 · Supported by vehicle data · 1 bulletin
P0746: Pressure control solenoid A is not working or stuck off
- Malibu 2019 · Supported by vehicle data · 1 bulletin
P0747: Pressure control solenoid A stuck on
- Equinox 2020–2021 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2020–2024 · Supported by vehicle data · 2 bulletins
- Tahoe 2020–2022 · Supported by vehicle data · 2 bulletins
P0753: Shift solenoid A electrical fault
- Cavalier 2002 · Supported by vehicle data · 1 bulletin
P0757: Shift solenoid B is stuck on or not shifting as commanded
- Silverado 1500 2002–2007 · Supported by vehicle data · 1 bulletin
P0761: Shift solenoid C performance or stuck off
- Silverado 1500 2011–2014 · Supported by vehicle data · 1 bulletin
- Silverado 2500 HD 2011–2014 · Supported by vehicle data · 1 bulletin
P0776: Pressure control solenoid B not working as expected or stuck off
- Malibu 2019 · Supported by vehicle data · 1 bulletin
P0777: Pressure control solenoid B stuck on
- Silverado 1500 2016 · Supported by vehicle data · 1 bulletin
P0796: Pressure control solenoid C not performing as commanded or stuck off
- Equinox 2025–2026 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2006–2021 · Supported by vehicle data · 2 bulletins
- Tahoe 2015–2016 · Supported by vehicle data · 1 bulletin
P0797: Pressure control solenoid C stuck on
- Traverse 2023 · Supported by vehicle data
- Volt 2011–2014 · Supported by vehicle data · 1 bulletin
P07B4: Park position sensor or switch circuit reading high
- Silverado 1500 2022 · Supported by vehicle data
P0841: Transmission fluid pressure sensor or switch reading does not make sense
- Impala 2006–2010 · Supported by vehicle data · 1 bulletin
P0843: Transmission fluid pressure sensor/switch A circuit, high input
- Equinox 2010 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2006–2007 · Supported by vehicle data · 1 bulletin
P0867: Transmission fluid pressure
- Corvette 2020–2024 · Supported by vehicle data · 1 bulletin
P0871: Transmission fluid pressure sensor or switch C reading out of range
- Spark 2015 · Supported by vehicle data · 1 bulletin
P0894: A transmission component is slipping: rotating parts are turning slower than the computer expects
- Express 2005–2006 · Supported by vehicle data · 1 bulletin
P0A1F: The battery energy control module, the computer that manages the high-voltage battery, has set an internal fault
- Volt 2011–2012 · Supported by vehicle data · 1 bulletin
P0A3F: Drive motor A rotor position sensor circuit fault
- Bolt EV 2017–2020 · Supported by vehicle data · 1 bulletin
- Volt 2016–2018 · Supported by vehicle data · 1 bulletin
P0A7F: The hybrid battery pack is worn or one of its modules has deteriorated
- Volt 2016–2017 · Supported by vehicle data · 1 bulletin
P0AA1: The hybrid or EV battery computer sees the positive high-voltage contactor still closed when it should be open
- Bolt EV 2017–2019 · Supported by vehicle data · 1 bulletin
- Malibu 2016 · Supported by vehicle data · 1 bulletin
- Volt 2019 · Supported by vehicle data · 1 bulletin
P0AA6: The hybrid computer has detected high voltage leaking to the vehicle body
- Volt 2011–2014 · Supported by vehicle data · 1 bulletin
P0AC4: Hybrid control module asked the engine computer to turn on the check engine light
- Malibu 2016–2017 · Supported by vehicle data · 1 bulletin
- Volt 2011–2017 · Supported by vehicle data · 5 bulletins
P1101: On GM and GM-era Saab engines, the airflow worked out from throttle position doesn't match the airflow measured by the MAF and MAP sensors
- Cruze 2011–2019 · Supported by vehicle data · 2 bulletins
- Malibu 2013–2022 · Supported by vehicle data · 1 bulletin
- Trax 2013–2019 · Supported by vehicle data
P1125: On Chevrolet, the accelerator pedal position sensors are faulty or disagree
- Avalanche 2003 · Supported by vehicle data · 1 bulletin
- Equinox 2005 · Supported by vehicle data · 1 bulletin
- Express 2004 · Supported by vehicle data · 1 bulletin
P1174: On Chevrolet and Saturn, fuel trim shows a cylinder balance problem on bank 1
- Malibu 2006–2007 · Supported by vehicle data · 1 bulletin
- Tahoe 2007–2008 · Supported by vehicle data · 1 bulletin
P129F: On GM vehicles, the fuel pump power control module reports that the fuel pump speed signal is incorrect
- Equinox 2021–2023 · Supported by vehicle data · 2 bulletins
- Silverado 1500 2022–2023 · Supported by vehicle data · 2 bulletins
P12A6: On Chevrolet, the fuel pump enable circuit voltage is not performing as expected
- Silverado 1500 2017–2020 · Supported by vehicle data · 1 bulletin
- Tahoe 2021 · Supported by vehicle data · 1 bulletin
P1516: Throttle actuator control (TAC) module fault (GM)
- Aveo 2006–2007 · Supported by vehicle data · 1 bulletin
- Silverado 2003 · Supported by vehicle data · 1 bulletin
P1626: On Chevrolet, GMC and Buick, the engine computer is not receiving the fuel-enable message from the theft-deterrent system
- Equinox 2006 · Supported by vehicle data
- Impala 2002–2003 · Supported by vehicle data
P1682: Engine computer’s two ignition voltage feeds disagree (GM)
- Impala 2014–2015 · Supported by vehicle data · 1 bulletin
- Traverse 2009–2017 · Supported by vehicle data · 3 bulletins
P1811: On GM vehicles (Chevrolet, Buick, Saturn): maximum adapt and long shift
- All models 1997–2002 · Supported by vehicle data · 1 bulletin
- Uplander 2007 · Supported by vehicle data · 1 bulletin
P182E: Internal mode switch reports an invalid range in a GM automatic transmission
- Camaro 2010 · Supported by vehicle data · 2 bulletins
- Corvette 2010 · Supported by vehicle data · 1 bulletin
- Equinox 2009–2017 · Supported by vehicle data · 2 bulletins
- Express 2009–2017 · Supported by vehicle data · 2 bulletins
- Impala 2009–2017 · Supported by vehicle data · 1 bulletin
- Malibu 2009–2017 · Supported by vehicle data · 2 bulletins
- Silverado 2010 · Supported by vehicle data · 1 bulletin
- Suburban 2010 · Supported by vehicle data · 1 bulletin
- Tahoe 2010 · Supported by vehicle data · 1 bulletin
- Traverse 2009–2017 · Supported by vehicle data · 2 bulletins
P1870: GM: transmission component slipping, usually at the torque converter clutch
- All models 1996–2000 · Supported by vehicle data · 1 bulletin
- Camaro 1997 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2000–2001 · Supported by vehicle data · 1 bulletin
P1E00: Chevrolet Volt: a hybrid control module has stored its own fault codes and is asking the engine computer to turn on the check engine light
- Volt 2011–2018 · Supported by vehicle data · 2 bulletins
P2068: The second (B) fuel level sensor circuit is reading higher than it should, so the fuel gauge may be wrong
- Camaro 2010 · Supported by vehicle data · 1 bulletin
- Corvette 2005 · Supported by vehicle data · 1 bulletin
P207F: Diesel exhaust fluid quality or dosing performance is below what the computer expects
- Express 2010–2015 · Supported by vehicle data · 1 bulletin
P2097: The engine computer has had to take fuel away based on the downstream oxygen sensor because the exhaust after the catalytic converter reads rich on bank 1
- Equinox 2004–2014 · Supported by vehicle data · 1 bulletin
- Malibu 2013 · Supported by vehicle data · 1 bulletin
- Volt 2016–2017 · Supported by vehicle data · 1 bulletin
P20C1: The engine computer found an open circuit in the third (C) heater control circuit for the diesel exhaust fluid (DEF) system
- Silverado 1500 2020–2021 · Supported by vehicle data
P2101: The engine computer sees a problem in the throttle actuator motor circuit or the motor's response, so actual throttle position doesn't match what was commanded
- Aveo 2009 · Supported by vehicle data · 1 bulletin
- Silverado 2017–2018 · Supported by vehicle data · 1 bulletin
P2106: The engine computer has limited engine power as a fail-safe because of a throttle control fault
- Aveo 2006–2008 · Supported by vehicle data · 1 bulletin
P2110: The engine computer has deliberately limited engine speed because of a fault it found in the electronic throttle system
- Aveo 2006–2008 · Supported by vehicle data · 1 bulletin
P2119: The electronic throttle body's actual position doesn't match the position the engine computer expects
- Volt 2016–2018 · Supported by vehicle data · 1 bulletin
P2122: The signal from accelerator pedal position sensor D (usually the first pedal sensor) is lower than its normal range
- Equinox 2013 · Supported by vehicle data · 1 bulletin
P2127: The signal from the second accelerator pedal position sensor (sensor E) is below its normal range
- Malibu 2017 · Supported by vehicle data
- Tahoe 2007 · Supported by vehicle data · 1 bulletin
P2128: Accelerator pedal or throttle sensor E signal reading too high
- Tahoe 2007 · Supported by vehicle data · 1 bulletin
- Trailblazer 2004 · Supported by vehicle data · 1 bulletin
P2135: Two throttle or pedal position sensor signals (A and B) that should agree with each other don't
- HHR 2006–2008 · Supported by vehicle data · 1 bulletin
- Impala 2006–2011 · Supported by vehicle data · 1 bulletin
- Silverado 2005–2013 · Supported by vehicle data · 1 bulletin
P2138: Two accelerator pedal position sensor signals (D and E) that should agree with each other don't
- Malibu 2016–2018 · Supported by vehicle data · 1 bulletin
P2176: Throttle closed position has not been learned
- Tahoe 2007 · Supported by vehicle data · 1 bulletin
P2181: Cooling system not holding its expected temperature
- Express 2011 · Supported by vehicle data · 1 bulletin
- Malibu 2013 · Supported by vehicle data · 1 bulletin
P219A: The engine computer has detected that the cylinders on bank 1 are running at noticeably different air-fuel ratios from each other
- Equinox 2010–2015 · Supported by vehicle data · 1 bulletin
P2227: The engine computer sees a barometric pressure reading that does not fit the engine load and throttle opening
- Camaro 2013–2015 · Supported by vehicle data · 1 bulletin
- Corvette 2015–2016 · Supported by vehicle data · 1 bulletin
- Cruze 2016–2019 · Supported by vehicle data · 1 bulletin
- Equinox 2018–2024 · Supported by vehicle data · 1 bulletin
- Impala 2013–2015 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2019–2023 · Supported by vehicle data · 1 bulletin
P2263: Turbo or supercharger boost not matching the computer target (system A)
- Express 2011–2016 · Supported by vehicle data · 1 bulletin
P228C: Fuel pressure regulator 1 cannot bring rail pressure up to target
- Camaro 2016 · Supported by vehicle data · 1 bulletin
- Equinox 2010–2018 · Supported by vehicle data · 2 bulletins
- Silverado 1500 2014–2016 · Supported by vehicle data · 1 bulletin
P2293: Fuel pressure regulator 2 not performing as expected
- Silverado 1500 2024 · Supported by vehicle data · 1 bulletin
P2431: Secondary air system pressure or flow sensor reading out of range (bank 1)
- Cobalt 2006 · Supported by vehicle data · 1 bulletin
- Trailblazer 2007 · Supported by vehicle data
P2459: Diesel particulate filter cleaning cycles happen too often
- Silverado 1500 2017–2019 · Supported by vehicle data · 1 bulletin
P2463: Soot has built up in the diesel particulate filter beyond the limit the computer allows
- Cruze 2014–2015 · Supported by vehicle data · 1 bulletin
- Express 2007–2016 · Supported by vehicle data · 1 bulletin
- Silverado 3500 HD 2026 · Supported by vehicle data
P2534: Voltage on the ignition switch run/start circuit read by the computer is too low
- Silverado 2500 HD 2020–2024 · Supported by vehicle data · 1 bulletin
P2535: Ignition switch run/start signal reading high
- Silverado 1500 2020–2022 · Supported by vehicle data · 2 bulletins
P2563: Turbocharger boost control position sensor reading is out of range or does not make sense
- Express 2007–2009 · Supported by vehicle data · 1 bulletin
P258B: Brake vacuum pump not performing as the computer expects
- HHR 2008–2009 · Supported by vehicle data · 1 bulletin
P25A2: Brake control module has asked for the check engine light
- Silverado 1500 2019–2026 · Supported by vehicle data · 2 bulletins
P2610: The engine computer internal engine-off timer is not performing as expected
- Cobalt 2008 · Supported by vehicle data · 1 bulletin
P261F: Coolant pump A control circuit stuck on
- Blazer 2021–2022 · Supported by vehicle data · 1 bulletin
P2635: The engine computer has found that fuel pump A isn't delivering the flow or pressure it is being commanded to deliver
- Colorado 2016–2017 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2010–2019 · Supported by vehicle data · 3 bulletins
P2636: A second fuel pump (pump B) is not delivering enough fuel
- Silverado 2500 HD 2015–2016 · Supported by vehicle data · 1 bulletin
- Silverado 3500 HD 2015–2016 · Supported by vehicle data
P2715: Pressure control solenoid D stuck on
- Silverado 2006–2009 · Supported by vehicle data · 1 bulletin
P2723: Pressure control solenoid E stuck off or performing poorly
- Corvette 2006–2009 · Supported by vehicle data · 1 bulletin
- Cruze 2011 · Supported by vehicle data · 1 bulletin
- Equinox 2011 · Supported by vehicle data · 1 bulletin
- Malibu 2011 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2006–2009 · Supported by vehicle data · 1 bulletin
P2732: Pressure control solenoid F performance or stuck off
- Silverado 1500 2024 · Supported by vehicle data · 1 bulletin
P2762: Torque converter clutch pressure control solenoid circuit range or performance fault
- Express 2011–2012 · Supported by vehicle data · 1 bulletin
P2797: Electric auxiliary transmission fluid pump not performing
- Malibu 2019–2025 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2009–2013 · Supported by vehicle data · 2 bulletins
P2817: Pressure control solenoid H performance or stuck off fault in an automatic transmission
- Colorado 2021 · Supported by vehicle data
- Silverado 1500 2020 · Supported by vehicle data
- Traverse 2024 · Supported by vehicle data · 2 bulletins
P2820: Pressure control solenoid J performance or stuck off fault in an automatic transmission
- Silverado 1500 2019 · Supported by vehicle data
- Silverado 3500 HD 2020 · Possible — needs testing
P2C7A: Diesel NOx catalyst (SCR) efficiency below threshold on bank 1, catalyst 2
- Silverado 1500 2020–2023 · Supported by vehicle data · 3 bulletins
P305F: Dual battery control module performance (Chevrolet Malibu eAssist)
- Impala 2014–2018 · Supported by vehicle data · 1 bulletin
- Malibu 2014–2018 · Supported by vehicle data · 3 bulletins
U0029: Vehicle communication network bus A performance fault
- Silverado 1500 2014–2016 · Supported by vehicle data · 1 bulletin
U0073: A module found its data network (bus A) switched off or not working
- Camaro 2010 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2007–2014 · Supported by vehicle data · 1 bulletin
U0100: Lost communication with the engine or powertrain computer
- Silverado 1500 2007–2022 · Supported by vehicle data · 2 bulletins
U0101: Lost communication with the transmission computer
- Camaro 2010 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2011–2013 · Supported by vehicle data · 1 bulletin
U0104: A module on the network stopped hearing the cruise control module
- Silverado 1500 2017–2018 · Supported by vehicle data · 1 bulletin
- Tahoe 2017–2020 · Supported by vehicle data · 1 bulletin
U0109: Lost communication with the fuel pump control module
- Volt 2011–2013 · Supported by vehicle data · 1 bulletin
U0111: Lost communication with the battery energy control module
- Volt 2011–2013 · Supported by vehicle data · 1 bulletin
U0121: Lost communication with the anti-lock brake (ABS) module
- Equinox 2007–2009 · Supported by vehicle data · 1 bulletin
U0126: A module on the network stopped hearing the steering angle sensor
- Silverado 1500 2014–2016 · Supported by vehicle data · 1 bulletin
- Tahoe 2014–2016 · Supported by vehicle data · 1 bulletin
U0129: U0129 is a generic network code: a module on the vehicle network lost communication with the brake control module (ABS or stability module), usually stored by the engine, body or instrument computer
- Silverado 1500 2019–2020 · Supported by vehicle data · 1 bulletin
U0140: Lost communication with the body control module
- Silverado 1500 2006–2011 · Supported by vehicle data · 1 bulletin
U0146: A module lost communication with gateway module A, which passes messages between the vehicle networks
- Silverado 1500 2019–2020 · Supported by vehicle data · 1 bulletin
U0155: Lost communication with the instrument panel cluster
- Equinox 2010–2015 · Supported by vehicle data · 1 bulletin
- Impala 2014 · Supported by vehicle data · 1 bulletin
U0159: A module on the network stopped hearing the parking assist control module
- Silverado 1500 2014–2018 · Supported by vehicle data · 1 bulletin
- Tahoe 2014–2018 · Supported by vehicle data · 1 bulletin
U0164: Lost communication with the HVAC control module
- Equinox 2010–2015 · Supported by vehicle data · 1 bulletin
U0184: Lost communication with the radio
- Malibu 2013 · Supported by vehicle data
- Silverado 1500 2014 · Supported by vehicle data · 1 bulletin
U0212: A module on the network stopped hearing the steering column control module
- Tahoe 2021 · Supported by vehicle data · 1 bulletin
U029D: A module on the network stopped hearing the first (upstream) NOx sensor module
- Colorado 2016–2018 · Supported by vehicle data · 1 bulletin
- Silverado 2500 HD 2014–2022 · Supported by vehicle data · 1 bulletin
U029E: A module on the network stopped hearing the second (downstream) NOx sensor module
- Colorado 2016–2018 · Supported by vehicle data · 1 bulletin
- Silverado 2500 HD 2014–2022 · Supported by vehicle data · 1 bulletin
U0420: A module received implausible data from the power steering control module
- Colorado 2015–2016 · Supported by vehicle data · 1 bulletin
U0422: A module received implausible data from the body control module
- Malibu 2016–2019 · Supported by vehicle data · 1 bulletin
- Silverado 1500 2017–2020 · Supported by vehicle data · 2 bulletins
U0428: U0428 is a generic network code: a module received invalid data from the steering angle sensor or steering angle control module, which stability control and power steering rely on
- Silverado 1500 2014–2017 · Supported by vehicle data · 1 bulletin
U0452: A module received data from the restraints (airbag) control module that did not make sense
- Silverado 1500 2014–2017 · Supported by vehicle data · 1 bulletin
U1000: Manufacturer code: on Nissan and Infiniti a module saw an error on the CAN network; on older GM vehicles it is a Class 2 serial data fault
- City Express 2015 · Supported by vehicle data · 1 bulletin
U160F: On GM trucks and SUVs, U160F means lost communication with brake system control module 1 on CAN bus 1
- Silverado 1500 2022 · Supported by vehicle data
- Suburban 2023 · Supported by vehicle data
U18A2: On Chevrolet, U18A2 means the engine computer lost communication with the fuel pump driver control module
- All models 2014–2016 · Supported by vehicle data · 1 bulletin
U2105: On Chevrolet and other GM vehicles with the GMLAN network, U2105 is a network code meaning another module lost communication with the engine control module
- Cobalt 2005–2008 · Supported by vehicle data · 1 bulletin
- Corvette 2005 · Supported by vehicle data
- Equinox 2005–2006 · Supported by vehicle data · 1 bulletin
U2107: On Chevrolet and other GM vehicles with the GMLAN network, U2107 means the engine control module lost communication with the body control system
- Cobalt 2005–2008 · Supported by vehicle data · 1 bulletin
- Corvette 2005 · Supported by vehicle data
- HHR 2006–2008 · Supported by vehicle data · 1 bulletin
U2603: On the Chevrolet Volt, U2603 is the first of a block of codes set when the Battery Energy Control Module loses communication with the battery interface modules
- Volt 2016–2018 · Supported by vehicle data
U2624: On the Chevrolet Volt, U2624 is part of the Battery Energy Control Module communication code block, stored with U2603-U2606 and P1E00
- Volt 2016–2018 · Supported by vehicle data
P0181: Fuel temperature sensor A signal is out of the range the computer expects
- Colorado 2016 · Possible — needs testing · 1 bulletin
P0230: Fuel pump relay control circuit fault
- Cobalt 2006–2007 · Possible — needs testing · 1 bulletin
P0598: Thermostat heater control circuit low: the computer sees too little voltage in the circuit of an electrically heated thermostat
- Volt 2017–2018 · Possible — needs testing
P0989: The transmission computer sees a low voltage on the circuit of one of the transmission fluid pressure switches, labelled E
- Impala 2013 · Possible — needs testing
P0A40: The control module sees the position sensor for drive motor A reading out of range or not matching the motor
- Bolt EV 2023 · Possible — needs testing
P2645: The engine computer sees an open circuit in the rocker arm actuator A (bank 1)
- Impala 2014 · Possible — needs testing
Sources and review
- GM 21-NA-005: airbag malfunction indicator with DTC B0001-1B due to corrosion, replace air bag and air bag harness
- GM PIC5702 SIR light with B0012 or B0013 symptom byte 0E
- GM SB-08-09-41-002C intermittent SIR indicator with B0012 and other deployment loop codes
- GM bulletin 14314 (NHTSA 10134766)
- GM bulletin PIC5702 (NHTSA 10045339)
- GM bulletin PIE-0118 (NHTSA 10036264)
- NHTSA complaint 11474524 (2018 Chevrolet Silverado 1500)
- GM PIC-5186: air bag lamp with DTC B0014, check for pinched or cut module wires at the seat recliner hinge
- NHTSA complaint ODI 10786536 (2011 Chevrolet Malibu)
- GM bulletin PIC5396A (NHTSA 10112574)
- GM bulletin PIT4898C (NHTSA 10114685)
- NHTSA complaint 11383669 (2012 Chevrolet Silverado 1500)
- NHTSA complaint ODI 10132430 (2001 Chevrolet Impala)
- GM 05-09-41-001: SIR light on, DTCs B0026 and/or B004x (2003-2006 full-size trucks and utilities)
- GM 06-09-41-003: SIR light on, DTCs B0022, B0024, B0026, B0042-B0044 (2005-2006 Trailblazer, Envoy, Rainier, 9-7X)
- GM 000941004: GM airbag light with side impact module codes B0028, B0029, B0040 and B0041, 2000 full-size trucks
- NHTSA complaint ODI 10005635: Chevrolet Impala 2000
- NHTSA complaint ODI 10548252: Chevrolet Corvette 2012
- NHTSA complaint ODI 974201: 2013 Chevrolet Silverado, deer strike
- PI-0241: airbag light on with DTCs B0074 and B0081; do not replace the PPS module or SDM (2010–2011 Camaro)
- NHTSA complaint ODI 10662352 (2009 Chevrolet Equinox)
- PIT-4874: SIR lamp with DTC B0081 set in the SDM and PPS (2009 full-size trucks and SUVs)
- 08-09-41-006: SIR light on, DTC B0081 stored; inspect passenger presence system connectors (Cobalt)
- NHTSA complaint ODI 10871745 (2010 Chevrolet Silverado 1500)
- NHTSA complaint ODI 11704050 (2015 Chevrolet Traverse)
- GM bulletin 4132: SIR light on, DTCs B0085, B0086, B0087 and B0088
- NHTSA complaint ODI 1608585: 2015 Chevrolet Malibu, airbag light flashing
- GM PIT5236J: DTC B101D stored in the telematics communication interface control module
- GM 08-02-32-005: loss of power steering assist, DTC C0900, B1325 set; replace ignition coil/module assembly and add ground strap (2004-2006 Malibu 3.5L)
- GM 01-08-56-002A: security lamp on, engine stall, no start, DTC B2960
- GM 04-08-47-003: security light on, engine will not crank, DTCs B2958 and/or B2960
- GM 3460D: ABS light on with EBCM codes C0040, C0035, C0221 and/or C0220
- NHTSA complaint ODI 10150643: 2004 Chevrolet Colorado ABS dealer invoice
- GM PIT-4648-B: ABS light and/or Service Stability message with C0045 and/or C0050
- GM PIT5171B: intermittent Service Traction/Stability, ABS or AWD message with C0045 and C0050 symptom 06
- GM 01885: ABS DTC C0045 or C0050, oil at rear wheel speed sensor
- GM bulletins naming C0050 (cache summaries)
- GM PIC5704A: Brake Pressure Modulator Valve replaced, DTC C0131 now set current
- GM SB-08-05-22-009A: intermittent brake lights, extended travel to shift out of park, cruise inoperative, DTCs C0161/C0277
- GM PIT-5122C: service stability message, low power, brake lights and cruise, DTC C0161 and/or C0277 (2012-2013 trucks and SUVs)
- GM 3741A: service stability light on, C0186 C0196 C0283 C0287 C0290 C0292 C0455 C0550 (2006 TrailBlazer family)
- GM PIT-4756: ABS and StabiliTrak lights on, U0121, C0550, C0186, C0196, C0710, C0252 (2007-2009 Equinox, Torrent, Vue)
- GM PI1525A: Airbag Readiness light on with B101D and C0186, C0196 and/or C0287 (2014-2015 Regal and Malibu)
- GM PIC5436B: Service Stabilitrak message and red brake lamp, DTC C0196
- Chevy/GMC Codes (2010-2017 Equinox and Terrain bulletin summary)
- GM PI1525: Airbag lamp on with B101D and C0186, C0196 and/or C0287
- GM 01737A: poor ground connection causing DTC C0265 (2003-2004 Silverado and Sierra)
- GM 04-05-25-002B: ABS light on, C0265, C0201, U1041 and/or loss of communication with the brake module
- Chevrolet SB-08-05-22-009A: CHEVROLET/PONTIAC/SATURN: INTERMITTENTLY BRAKE LIGHTS (STOP LAMPS) DO NOT FUNCTION CORREC
- GM 030525002: intermittent traction off lamp with DTC C0287 (2000-2002 full-size SUVs)
- GM PIC-4936: ABS light on with code C0287 on hybrid models (2009 Malibu and Aura)
- GM PIT5427B: service lights with C0196, C0186, C0287, C0710 and other codes; inspect X411 connector (2010-2017 Equinox and Terrain)
- GM PI0639C: Service Stabilitrak message and DTC C0455 or C0710, steering angle sensor connector
- GM PIT4225F: ABS lamp then Service Stability message, C0710 and possibly C0455
- NHTSA recall 14V-153 (GM N140115): sudden loss of electric power steering assist
- GM PIT5437B: Service Power Steering message, C056D or C0545
- GM 03-04-21-006: service 4WD light, 4WD inoperative, no communication with TCCM, DTC C0550 (2004 TrailBlazer family)
- GM 04-08-49-006A: service message with DTC C0550 set, reprogram EBCM (2003 Yukon, Escalade, Avalanche)
- GM 07-02-32-007: power steering inoperative or hard to turn, C0176, C0475, C0476, C0550, U2105, U2107 (Ion, Cobalt, HHR, G5)
- GM PIC-4955A: tire pressure monitor light on, C0550 (2008-2009 Aveo)
- NHTSA complaint ODI 11375073: 2018 Chevrolet Volt power steering lost
- GM 08-05-25-001: False traction control activation at low speed, DTC C0710
- GM PI0639C: Service Stabilitrak message with C0455 or C0710
- GM PI1398: radio turning on and off with intermittent MIL and C0800, B1325 or B1517 (2012-2014 Cruze)
- GM PIC-5667: service power steering C0800 (2011-2013 Volt)
- NHTSA complaint ODI 10619472, 2001 Chevrolet Impala
- GM bulletin 01-05-25-006: excessive wheel speed variation diagnostic tables (C1225, C1226, C1227, C1228), 1998-1999 minivans
- NHTSA complaint ODI 10224551 (2002 Chevrolet Impala, C1226 readout)
- GM bulletin 032503: front wheel bearing replacement for front wheel speed sensor codes
- GM preliminary information PIT5948B: Service Trailer Brake message with DTC C159C
- GM 12-06-01-009F: High Feature V6 timing chain kits for stretched chains setting P0008, P0009, P0016-P0019
- GM 12-06-01-009F: High Feature V6 timing chain kits and chain guide replacements for DTCs P0008, P0009, P0016-P0019
- GM 15824: special coverage for P0010/P0013 from a broken wire inside the cam actuator solenoid
- GM Special Coverage 15824: P0010/P0013 from a broken wire inside the cam actuator solenoid, 2013 ATS/Malibu 2.0L/2.5L
- GM 17-NA-098: replace both camshaft position actuators, P0010/P0011/P0013/P0014, 2010-2012 Equinox/Terrain
- GM 12-06-01-009F: Information on High Feature V6 Timing Chain Kits and Chain Guide Replacements, DTCs P0008, P0009, P0016, P0017, P0018 and/or P0019
- GM PIP4548E: P0016 and/or P0017 on a properly timed engine, or crank/no start - inspect for a spun camshaft reluctor
- GM PIP5183: P0016 that service information does not isolate - check crankshaft reluctor indexing
- GM Special Coverage 16115 (GCUS-9-3286): P0014/P0024 from a sticking exhaust camshaft position actuator solenoid valve
- GM PIT5336: MIL on with O2 sensor codes including P0036, wiring chafed on the A/C hose coupling
- GM bulletin PIP-4636: turbo vane position sensor wire chafe with P003A among the codes
- NHTSA complaint ODI 10641106, 2006 Chevrolet Silverado 3500 Duramax LBZ: P003A described as turbocharger boost control position not learned, with P0087
- General Motors PIP5614: P0046, P113B and P206B from a software anomaly
- GM PIP5529: MIL with combinations of P0068, P0101, P0106, P0171 and other DTCs
- Hard start or no start with P0087, P0088, P0191 or P128E (bulletin PIP4949E)
- Service engine soon light with P0089 and fuel pressure codes (bulletin PIP5279A)
- High-pressure fuel pump connector concerns (bulletin PIP6061)
- Service engine soon light with P0089 and P228D (bulletin PIP5203)
- Chevrolet PIP6061: Electrical connection concern at the high pressure fuel pump (Traverse)
- NHTSA complaint ODI 2116254: 2020 Chevrolet Traverse, P0091
- General Motors PI1009: Diagnostic tips for P0097, P00F4, P0113, P2229 and/or P0102
- General Motors 17-NA-171: Hesitation, stalling and many codes including P0097; update ECM and TCM
- NHTSA owner complaints naming P0119 (ODI 10484858, 10714028), P0129 (ODI 10321868, 10496081, 10551947, 10567604) and P00B7 (ODI 11561868, 11575521, 11756349, 11768539)
- Intermittent crank no start with P0011 or P00C6 (bulletin PIP5130J)
- P00C6 and/or P228C: recheck engine computer terminals (bulletin PIP5209C)
- Service update 16029: high-pressure pump or fuel rail fasteners (GCUS-3-729)
- GM PIT6281: SES MIL with BCM U1962 and ECM P00FF (2025 Escalade, Suburban, Tahoe, Yukon and variants)
- General Motors bulletin GCUS-9-3731: Cracked air cleaner outlet duct (P0171 or P0101)
- General Motors bulletin N212330660: Erratic MAP sensor signal
- Chevrolet PIT5677A: Inspect engine harness for shorting
- Chevrolet 3192: Reduced engine power message or check engine light with several codes
- 020603005: Chevrolet bulletin: Service Engine Soon light on with stored P0112, P0113, P1111 or P1112
- NHTSA complaint ODI 10980210: Chevrolet Cruze 2011, P0117 and P0118 with coolant sensor and housing replacement
- GM PIP-4660 (NHTSA 10032888): coolant sensor DTCs P011A, P2184 and P2185 on diesel vans and trucks
- Chevrolet 3040: Service engine soon light or reduced engine power with P0120, P0220, P1516, P1518
- GM PIP4578B: idle surge, reduced engine power, P0121/P2101/P2119/P2176 on high-mileage vehicles
- GM PI-0220: MIL with P0122 and other DTCs from engine harness chafing (Acadia, Enclave, Traverse)
- GM 08-06-04-027: P0420 with O2 lean-limit codes P0131/P0133 (Aveo 1.6L)
- GM PIT5336: O2 sensor and heater DTCs from bank 1 O2 harness chafing on the A/C hose coupling (Acadia, Enclave, Traverse)
- 3070: Chevrolet bulletin: Service Engine Soon light with P0130, P0134 and/or P0135
- General Motors bulletin 19NA077: P0132 and/or P0138 with start/stop and hesitation concerns
- Chevrolet bulletin 030604051: Revised P0146 diagnostic entry for the bank 1 sensor 3 oxygen sensor
- GM 3322: incorrect O2 sensors and wiring harness causing heater circuit codes P0135, P0141, P0155, P0161 (2004 trucks)
- General Motors bulletin PIP-5402: check engine light with P015B or a reduced engine power message
- General Motors bulletin 17-NA-155: MIL with P015B set on 2016-2017 Cruze
- Chevrolet 3322: Incorrect O2 sensors and wiring harness causing heater circuit codes
- General Motors bulletin N192273400: Right-hand PCV tube not fully seated
- General Motors bulletin PI-0145: P0172 and P0175 with rough running: high-pressure fuel pump
- GM PIP5471: check engine light with P0181 (2016 Colorado)
- GM PIP5411A: hesitation or stalling in 100 F+ weather, P2635 and/or P018B
- Chevrolet PIT5677A: Inspect engine harness for shorting (Silverado 1500)
- Stall with P0191, may also set P0172 (bulletin PIP6113)
- Intermittent DTC P0191, slow fuel rail pressure decay (bulletin TB-09-06-04-022)
- Service engine soon light with fuel pressure codes (bulletin PIP5279A)
- P0200: NHTSA bulletin 10032392 (Check engine light or misfire with injector codes P0200-P0208 or misfire codes P0300-P0308)
- PIP4924C Service engine soon light and misfire, P0201-P0206 among codes
- GM 22-NA-087: replace fuel injector and wiring harness for MIL with P0201 to P0206 and/or P0216 (2021 Suburban 1500)
- Chevrolet 060604026: Intermittent light, reduced power, fuel injector driver circuit codes
- Chevrolet 22-NA-087: Replace fuel injector and wiring harness for P0201 to P0206 and P0216
- GM PIT5751: MIL with P0201-P0206 and P0216, inspect engine wiring harness (2020-2021 trucks and SUVs)
- PIT5751C: SES light with DTCs P0201-P0206 and P0216, inspect engine wiring harness
- Chevrolet 05-06-04-047: Reduced power with P0202 and P2146 or P0207 and P2149
- PIP-4673: SES light and/or engine misfire due to DTCs P0200-P0208 and/or P0300-P0308
- 3238C: Fuel injector driver circuit codes P0201 through P0208
- GM bulletin 22-NA-087: replace fuel injector and wiring harness for MIL with P0201-P0206 and/or P0216
- Chevrolet bulletin 030604032: Check engine light with no drivability concerns and P0120, P0220, P1516 or P1518
- General Motors bulletin 3642: SES light with P0230 and no performance concerns, replace ECM, 2006 Cobalt/HHR/Malibu/ION/G6/Solstice
- Chevrolet 22-NA-007: Charge air cooler icing in extreme cold with P0299, P0234, P0236 (Cruze)
- GM PIP5927E: reduced power with DTC P0237 and/or P0299, damaged charge air inlet pipe connection at turbocharger
- P0265: NHTSA bulletin 10083141 (Diagnosing P0264 or P0265 with P0300)
- General Motors bulletin 23-NA-045: Engine RPO L3B P0299 service calibration
- GM PIP5511: Flashing MIL, P0300, random misfire after extended steady driving in humid or wet conditions
- GM PIP4138R: misfire codes P0300-P0308 that service information does not isolate, check valvetrain and AFM lifters
- GM PIP5939 and 24-NA-023: 2023 Corvette, P0315
- GM PIP5149: P0324, inspect oil squirters for piston contact, 2014 Silverado/Sierra 1500
- GM PIP5251: P0324 and rattle or spark knock noise, 2014-2015 Spark
- GM 24-NA-064: ECM reprogramming for MIL with P0324 and/or P0116, 2024 Trax, Trailblazer, Envista, Encore GX
- GM 050604052: inverted knock sensor, P0327 or P0332
- 24-NA-180: Knock sensor service calibration, P0326 and P0331
- PIP5836A: Possible emerging issue and recommendations for P0331
- GM 02-06-04-023: engine ping during acceleration and/or MIL with P0332
- GM 05-06-04-052: inverted knock sensor, P0327 or P0332
- GM PIP5576 (NHTSA 10145501): P0333 sets when shifting from park
- GM 3808: Crank no start, rough running or P0335
- GM 4137: Stall, engine runs rough, P0335, P0336, P0340 or P0341
- PIP5147A: SES lamp with P0300 and P0351-P0358
- 01772A: Mislabeled P0351-P0358
- GM 18-NA-307: harness short at the camshaft cover or cylinder head, P0014/P0365/P0366/P06A3, 2015-2022 Colorado/Canyon
- 01927: No-charge condition with DTCs P0380 and P0621
- PIP6090: DTC P0381 under investigation
- Chevrolet PIE0489A: MIL on with P0403 set (Cruze, Equinox)
- GM bulletin 776513: water in air pump and/or DTC P0410 (install air pump service kit)
- Intermittent SES light from P013B and/or P0411 (GM PIP-4361B)
- GM PIP5917: direction when P0422 sets on a 2024 6.6L L5P diesel
- GM 23-NA-073: P0442, P0446, P0455 or P0449 from dust intrusion into the canister and vent solenoid
- GM 22-NA-217: P0442 from a purge canister weld leak
- GM PI0979: P0442 from a vent solenoid that leaks under vacuum
- GM SB-10-06-04-001: intermittent MIL with P0442, P0446, P0451–P0455, install fuel tank pressure sensor cover
- GM TB-09-06-04-024: MIL with P0442, P0446, P0451-P0455 and replacement of the fuel tank pressure sensor/module (2008-2009 full-size trucks and SUVs)
- NHTSA complaint ODI 11448862
- GM 20-NA-042: fuel gauge erratic or empty with P0462 (Corvette)
- 07-08-49-013: Fuel gauge reads empty with a full tank: replace fuel level sensor (minivans)
- 4294: Fuel gauge erratic in freezing temperatures, P0463 (Silverado, Sierra)
- 09-08-49-005: P0461/P0463 from poor terminal tension at connector X405 (Impala, LaCrosse)
- GM bulletin 09-06-03-007A (NHTSA 10043844): 2006-2011 Impala MIL with P0480 or P0481, fans intermittent
- GM PIC6160B (NHTSA 10113902): 2016 Camaro cooling fan inoperative with P0480 or P0691
- GM 09-06-03-007A: P0480/P0481, hot temperature gauge, cooling fans intermittent or inoperative, 2006-2011 Impala
- GM 3141: intermittent P0481 with the COOL FAN HI 25 A fuse open, 2005 Equinox
- GM PIP6037A: P0496 and possible purge solenoid O-ring damage
- GM PIP4891H: MIL with P0497, inspect EVAP components for liquid fuel saturation
- NHTSA complaint ODI 11576113
- NHTSA complaint ODI 11581652
- NHTSA complaint ODI 11561724
- NHTSA complaint ODI 10447778
- GM TechLink: Possible Condensation in Crankcase Pressure Sensor Assembly (PIP5841)
- NHTSA complaint ODI 2108214: 2025 Chevrolet Equinox, P04FB crankcase ventilation pressure sensor issue
- GM PI1489: MIL on, DTC P0502 vehicle speed sensor circuit low voltage (2013-2015 Cadillac ATS, 2014-2015 Corvette)
- GM PIT-4865: inoperative speedometer and/or SES MIL with P0502 or P0500 (2005-2009 Chevrolet Kodiak, GMC TopKick C4500-C5500)
- PI1439A: Diagnostic tip for MIL on with only P0503 set
- GM PIP5423B: P0106 and P0506, inspect for broken valve spring
- GM N192266090: charge air cooler outlet disconnected from throttle body
- GM 17-NA-317: low idle, stall after auto start, P034B/P0506
- GM PI1203B: steam from grille, runs rough or stalls, P0506
- GM PIP5498M: P050D and P0300 after cold start, coolant in cylinders
- GM 24-NA-244: PCM programming for cold start rough idle with P050D
- GM 21-NA-104: ECM calibration for P050D
- GM 32340B: Volt misfire, rough or high idle, P0300 or P050D
- GM PIP5472F: P050D, replace exhaust-side lash adjusters if SI diagnosis fails
- GM bulletin PIT5610: Service engine soon lamp with P050F (2018 Enclave, Traverse)
- GM bulletin 17NA401: ECM update for P050F weak brake booster vacuum (2016-2017 Malibu)
- GM 16-NA-024 no start with theft deterrent message and P0513, retorque a ground
- GM PIP5630: no oil pressure and/or P0521 from a sticking oil pump relief valve or damaged No. 1 main bearing (2019 Silverado 1500, Sierra 1500, Express, Suburban)
- GM service update A202302140: engine oil pump stuck by foreign material, P0521, P06DE, P06DD (2021 Trailblazer, 2020 Encore)
- GM PIP5932: engine wiring harness inspection and oil pump testing for MIL with P0521 (2024 Trax)
- P0522: NHTSA bulletin 10032450 (Inspect for wire harness chafing near connector X108 (SES light, reduced power))
- P0522: NHTSA bulletin 10011049 (Engineering investigation EI 04073: high, low or erratic oil pressure gauge with P0522 and/or P0523)
- GM engineering investigation EI 04073: high, low or erratic oil pressure gauge reading setting P0522 and/or P0523 (2004 GMT800 trucks and SUVs)
- 040421004: Chevrolet bulletin: 4WD switch indicator lights flashing, 4WD inoperative, codes C0327 and P0550
- NHTSA complaint ODI 11496472: 2019 Chevrolet Malibu, hard brake pedal with P0556, vacuum pump
- GM PIT5634: SES light, reduced engine power, Service Brake System and hard brake pedal with P0606 caused by low voltage (2019 Silverado 1500 / Sierra 1500)
- 24-NA-050: Silverado and Sierra setting P0606 and P0562 or P0563
- ODI 10588741: 2007 Chevrolet Avalanche 1500, P0573
- NHTSA complaint ODI 11757544: Chevrolet Volt 2018, P0598 with P0597 and EGR valve short
- ODI 10882251: 2012 Chevrolet Cruze, P0599 thermostat control circuit
- GM PIT5364: P059F on 2015 Colorado and Canyon (do not replace parts; check the grille shutter for ice, snow or obstruction)
- GM PIP5609: P0601-P0604 and related ECM codes, check powers and grounds
- GM PIP-4653 B (NHTSA 10032434): P0601, P0603, P0604, P062F, P1621 stored in TCM
- GM PIT5634: P0606 set by the EBCM from low voltage, hard brake pedal (2019 Silverado 1500, Sierra 1500)
- 050525002: ABS diagnostic information for C0035, C0040, C0050, C0055 and/or P0609
- NHTSA complaint ODI 11769837: 2014 Chevrolet Traverse, P0615 read by owner with stall
- GM PIC6212: stalled while driving, battery light or Service Charging System message, P0622 (2016 Cruze)
- GM PIT5503: Service Charging System message or SES lamp with P0621 and/or P0622 (2011-2014 Silverado, Sierra)
- GM PIP5444 (NHTSA 10114838): P0641 on 2016-2017 Camaro, Acadia, ATS and CT6 PHEV
- GM PIT5424 (NHTSA 10115068): 2013-2015 Equinox and Terrain hard start with P0641 and injector codes
- NHTSA complaint ODI 10935073: Chevrolet Cobalt 2010, P0641 with engine power reduced
- 01584: P0650 set after PCM replacement
- GM PIP5247A: P06DE (with P0651 possibly also set) and broken oil piston nozzles
- GM PIC5606A: P069E, P0641 and B101D from a twisted, pinched harness under the rear seat, 2012-2014 Impala
- GM PI1111: MIL with P059F and/or P069E, 2013-2014 Malibu
- NHTSA complaint ODI 11684043: 2016 Chevrolet Colorado, P069E with stalling when slowing down
- GM PIP5553: P06DA/P06DB/P06DC and crank no start from chafed jumper harness at X154
- GM PIP5724: P06DA/P06DB/P06DC, jumper harness pinched at X154 bracket
- NHTSA complaint ODI 11757544: 2018 Chevrolet Volt, P06DA/P06DB with blown fuse from shorted EGR valve
- GM PIP5555: P06DD, oil pump control solenoid damaged or broken (2015–2018 Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade)
- GM PI1482: engine noise from the front and Oil Pressure Low message, DTC P06DD or P06DE
- Chevrolet bulletin PIP5247: MIL with P06DE set in the engine control module
- Chevrolet bulletin PIP5519A: Timing chain tensioner gasket mis-positioned, low oil pressure and P06DE
- Chevrolet bulletin 18-NA-246: MIL with P0172, P06DE and/or P0521
- GM 23-NA-210: MIL with P18AE and/or P0700 set in the TCM on low-mileage vehicles
- Chevrolet PIP5100A: Vehicle will not move forward or reverse (P0701 among codes)
- GM PIP5101: 2013 Spark lacks power, will not shift, PRNDL blank, P0705
- GM 3357: MIL on with P0706
- GM/Isuzu IB15-K-002A: inhibitor switches replaced for P0707 found no trouble
- NHTSA complaint 10232314: 2004 Chevrolet Silverado 2500
- NHTSA complaint 11682801: 2020 Chevrolet Silverado 1500
- GM 16-NA-013: no reverse, no third, P0716 and P0717
- GM PIP5084A: 2013 trucks and vans harsh shift or MIL with P0716 or P0717
- GM 00574A: Allison LCT1000 no shift, erratic speedometer, DTC P0721 and C0237
- GM PIP5473 (NHTSA 10113422)
- NHTSA complaint 10993393: 2011 Chevrolet Cruze
- GM PIP5100A: no movement in forward or reverse, P0729 among codes
- GM 19-NA-201: P0730 set during vehicle transport
- PIP4379N: No engagement into drive, delayed or no reverse, or range inhibit
- GM PIP6077B: no drive/no reverse with P07E5 or P073E
- GM PI1447A: P0741 diagnostic tips, damaged turbine shaft front bushing, 2015–2016 Colorado/Canyon
- TSB 02-07-30-039: Firm shifts, shudder, no downshift on deceleration, DTC P0742
- PIP-4290 / PIP4290A: Engine surge or stall at a stop, DTC P0742, TCC applied
- GM PIP5671: Replace both pressure sensors for P0746 or P0776, VT40 CVT
- GM special coverage N242454441: transmission control valve wear, P0747
- GM service update N202321840: clutch spring retaining ring not fully seated, P0747
- Chevrolet 280102: Information on DTCs P0753, P0758 and P1860
- 08-07-30-015: Diagnostic information on MN8, MT1 - SES/MIL on, DTC P0757, harsh shift, delayed 2-3 shift
- GM PIP5100A: will not move forward or reverse, codes including P0761
- GM PIP5671: 2019 Malibu VT40 CVT, replace both pressure sensors for P0746 or P0776
- GM PIP-5396: P0777 history code: no repair, calibration coming
- GM PIP5771B: replace valve body on 8-speed transmissions setting P0796 if no pan debris
- GM 16-NA-027: replace 4-5-6 clutch hub for no 4th, 5th or 6th gear and/or MIL with P0796
- GM PI-0773: slipping or no 4th, 5th or 6th gear with active DTC P0796
- GM PIP6010B: diagnostic information for low-mileage vehicles setting P0796
- NHTSA complaint ODI 11752765: 2023 Chevrolet Traverse, P0797 and P0700
- GM PIP5000B: check engine light with P0700 in the ECM and P0797 in the TCM (2011-2014 Volt)
- NHTSA complaint ODI 11769411: 2022 Chevrolet Silverado 1500, P07B4
- GM PIC4610A: Engine power reduced message and check engine lamp with P0841, wire chafing
- GM 07-07-30-015: TFP switch check for false codes including P0843
- GM PI0179: harsh shift into third or fifth, P0843 in the TCM
- GM 23-NA-139: P1955 and/or P0867
- GM PIP5521: Spark P0871 or P2714 in the TCM
- GM 2005-2006 trucks and SUVs: harsh 1-2 shift, MIL on, P0894 stored in PCM
- NHTSA complaint ODI 11246315: 2013 Chevrolet Impala
- PIC-5828: SES light with P0A1F on the Volt
- GM PIP5641 to PIP5641D (NHTSA 10160685 to 10170434)
- GM 18NA186 (NHTSA 10166648)
- NHTSA complaint ODI 11549415: 2023 Chevrolet Bolt EV
- PIC6203: P0A7F on the Volt, do not clear codes
- 21NA288: MIL with P0AA1 on the Bolt EV
- 18NA084: high voltage battery disconnect relay replacement
- PIC6375: P0AA1 and P0AA4 program on the Volt
- Vehicle will not charge, loss of isolation with P0AA6, Volt and ELR (Preliminary Information PIC5920D)
- GM PIP5008A (NHTSA 10111981)
- GM PIC6294 (NHTSA 10114092)
- PI0907C: Check engine light with P1101 (Cruze, Sonic, Trax, Encore)
- PIP5240F: P0171 and/or P1101: inspect air cleaner housing (Encore, Trax)
- PIP5402E: P015B or Reduced Engine Power with P1101: check charge air cooler coupler O-ring
- Chevrolet 030604031: Revised diagnostic trouble code P1125
- Chevrolet 01912: MIL on with P1125 or P2138
- Chevrolet 3239: Light on with P1125 and P2125
- Chevrolet PIP4017C: Fuel injector concern that could set P1174
- Chevrolet 070604027: 5.3L driveability symptoms and clogged injectors with P1174 and P1175
- 24-NA-139: Replace fuel pump driver control module for no start, stalling, loss of power with P023F/P129F
- Chevrolet PIP5719A: Possible P12A6 with crank no start or extended crank
- Chevrolet 20NA218: Repair for possible crank no start or extended crank with P12A6
- GM 3040: Service Engine Soon and/or reduced engine power, DTCs P0120, P0220, P1516 and/or P1518
- GM 06-06-04-050: Poor acceleration, throttle body frozen shut or stuck closed, DTCs P1516, P2106 and/or P2110
- NHTSA complaint ODI 11255789: 2003 Chevrolet Impala, P1626
- NHTSA complaint ODI 10176882: 2006 Chevrolet Equinox, P1626
- GM bulletin 19NA276: reduced engine power and/or stall with P1682 and/or P0689 (2013–2017 Enclave, Traverse, Acadia)
- GM PIT4649B: SES MIL with P1682, battery draw and/or no start (2007–2013 Acadia, Enclave, Outlook, Traverse)
- GM PIC5971A: intermittent crank/no start with P1682, engine controls ignition relay (2014 Impala)
- GM 00-07-30-002B: slips, harsh shifts, shudder with P1811 or P0748
- GM 08-07-30-013: 4T65-E harsh shift, sets false P1811 (reprogram TCM)
- GM 17-NA-084: check engine light on with DTC P182E
- NHTSA complaint 1101940: 2013 Chevrolet Traverse, C0561 P0700 P182E
- NHTSA complaint 1318373: 2010 Chevrolet Equinox, P0700 P182E
- GM 3047: harsh TCC apply and/or DTC P1870, 4L80E
- GM 01-07-30-023B: harsh 1-2 upshift, MIL and DTC P1870
- GM 97120177717A: 1997 Camaro TCC slip and/or DTC P1870 at 45–55 mph
- Owner complaints: 2016–2018 Chevrolet Volt, P1E00 with battery energy control module (BECM) codes
- Charge incomplete or interrupted, MIL with P1E00 (Preliminary Information PIC5803)
- GM PIC-5211: fuel gauge reads empty, DTC P2068
- GM 050849027: erratic fuel gauge, P0463 or P2068
- GM PIP5007D: Exhaust Fluid Quality Poor message on LGH/LML Duramax trucks
- GM PIP5215: intermittent P2097 (Malibu)
- GM PIP4964C: P2097/P2099 post-catalyst fuel trim too rich
- GM GCUS-3-842: false P2097, drive motor inverter reprogram (Volt)
- NHTSA complaint 11710279: 2020 Chevrolet Silverado 1500
- 18-NA-037: ECM reprogramming to correct P2101
- 09-06-04-016A: P2101/P2135 with reduced power from poor terminal crimps (Aveo)
- 08-06-04-004: Throttle body frozen shut in extreme cold, P1516/P2106/P2110: PCV kit and ECM reprogram (Aveo)
- GM 08-06-04-004: throttle body frozen shut, P1516/P2106/P2110 in extreme cold and humidity (Aveo)
- PIP5513: P2119 does not light the MIL or reduce power; do not replace throttle body on this code alone (Volt)
- PIT5203: Open fuse with P06A3 and P2122: inspect engine harness for rubbing (Equinox)
- GM 08-06-04-012B: intermittent MIL with pedal position DTCs and reduced engine power, connector corrosion
- NHTSA complaint ODI 11331495: 2017 Chevrolet Malibu, dealer found P2127 and replaced the accelerator pedal after reduced power
- GM 08-06-04-012, intermittent MIL with throttle and pedal codes including P2128
- GM 01746, engine with DTC P2120, P2122, P2123, P2127 or P2128
- 11-06-04-007C: MIL, reduced power and P2135: replace throttle position sensor cover (trucks and SUVs)
- 12-06-04-003A: P2135: replace throttle position sensor cover (cars and crossovers)
- 08-06-04-022: P2135 with engine power reduced: inspect harness for chafing, re-crimp ECM terminals (HHR)
- N182188250: Special coverage: accelerator pedal position sensor connection (Malibu, LaCrosse, Regal)
- Chevrolet 3707, Possible reduced power message and P2176, Tahoe/Yukon
- PIC5764: Overheating messages with P00B7 or P2181
- PIP4775B: Service engine soon shortly after cold start with P2181
- PIP5301: P219A: if injector balance test does not isolate the cause, test injectors for rich or lean
- GM PI1445: MIL on with DTC P2227 (XTS, Impala, Camaro, LaCrosse)
- GM 15-NA-059: ECM reprogramming for MIL on, DTC P2227 (Corvette)
- GM 18-NA-020: charge air cooler replacement for moisture (P0300, P0299/P2227)
- GM 22-NA-007: CAC icing in extreme cold, DTCs P0299, P0234, P0236, P2227, P00C7
- GM 23-NA-002: CAC icing, check engine light, possible P0299, P2227, P0300
- GM PI1164B: reduced engine power with Service Engine message and P2263 (2011-2016 Express and Savana)
- Chevrolet PIP5988: Replace fuel rail, not injection pump, for P0089 and P2293 (Silverado 1500)
- GM bulletin 3628: P2431 after ECM replacement, inspect ECM part number
- NHTSA complaint ODI 1001741: 2007 Chevrolet Trailblazer, P2431
- Chevrolet PIP5468F: Check engine light with various diesel codes including P2459 (Silverado)
- GM 10-06-05-002B: Clean Exhaust Filter message, P2463 may be set
- GM 15-NA-084: diagnostic tips, rough running, poor acceleration, P2463
- NHTSA complaint ODI 11745220
- GM bulletin 24-NA-124: MIL, stall or no start with DTC P2534 and others (2020-2024 Silverado/Sierra HD)
- GM bulletin PIT6396: SES MIL with P2535, P12A6, P10DA and/or C111B after replacing the fuel pump driver module (2020-2023 Silverado and Sierra HD, 2020-2022 1500)
- GM preliminary information PIP4636: turbo vane position sensor wire chafe
- GM bulletin PIC-5149, P258B after OHB brake kit (2008-2009 HHR; NHTSA 10030747)
- GM bulletin 20NA073: loss of brake assist, P0606 with C-codes or P25A2 (2019–2020 Silverado, Sierra and others)
- GM SB-08-06-04-035A: ECM reprogramming for several codes including P2610 on 2008 Cobalt SS, Solstice, Sky
- GM bulletin 22-NA-077, DTC P261F Coolant Pump A Stuck On (NHTSA 10210284)
- GM 17-NA-335: hesitation, surging or stall in hot weather with P2635/P018B; updated fuel pump module
- GM 16-NA-225: fuel pump module replacement for P2635/P018B
- GM 18-NA-103: in-tank fuel pump whine below 20 F, start-and-stall, P0087/P018B/P2635
- GM PIP5286B: P2635 and P018B from a fuel pressure sensor not reading low pressure
- NHTSA complaint ODI 10966548
- GM 17067: product emissions recall, 6.6L LML diesel with dual fuel tanks, P2636
- NHTSA complaint ODI 11327388
- Chevrolet 09-07-30-004F: Slips in reverse or third, delayed engagement, P0776, P2715, P2723
- TSB 09-07-30-004F: Slips in reverse or third, delayed engagement, DTCs P0776, P2715, P2723
- PI-1131: Missing gears, DTCs P0776, P0796, P0878, P0873, P2714 or P2723
- Chevrolet PIP6002: Replace valve body for no reverse and P2732
- GM PI-0690: erratic transmission shifting and MIL, DTCs P0961, P0965, P0969 or P2762
- GM 19-NA-200: start/stop inoperative with P2797
- GM PI-0209: auto stop rough or inoperative, P2797
- GM PIP6005: possible damaged turbine shaft seal causing P2817
- NHTSA complaint 2168605: 2020 Chevrolet Silverado 1500, P2817
- NHTSA complaint 1762755: 2021 Chevrolet Colorado, P0700 and P2817
- NHTSA complaint 2079594: 2019 Chevrolet Silverado 1500, P2820 and P0777
- NHTSA complaint 2135386: 2020 Chevrolet Silverado 3500, P0700 and P2820
- GM PIP5682: P2C7A and/or P14D9 may set; ECM calibration under development (2020 Silverado/Sierra 1500)
- PI1412A: P305F diagnostic tip, unsecured ground wire
- PIE0463: smoke or burning odor with P305F or P058D
- GM PIT5405B: multiple U-codes with reduced power, steering assist or blank displays
- GM 08-07-30-021: Loss of high-speed GMLAN, intermittent no crank, DTCs U0073/U0100/U0101/U0102/U0121/U0140
- GM PIP-4678B: Water in transmission, no forward gears, DTCs U0073, U0100, U0101
- GM PIT6198: SES MIL at startup with DTC U0100
- GM PI-0531-B: Transmission Hot - Idle Engine message, U0101 may be set
- GM PIT5586E (NHTSA 10182530): IPC gauges inoperative, no crank, SIR light, DTCs including U0104
- GM PIC5655A: loss of communication with the fuel pump control module, U0109 (2011-2013 Volt)
- GM PIC5829: SES light with U0111, update the Battery Energy Control Module (2011-2013 Volt)
- GM PIT-4756: ABS and StabiliTrak lights on with U0121, C0550 and others
- GM PIT5405B (NHTSA 10083324): reduced power, steering assist, engine stall or blank displays with many DTCs
- GM PIT5713 (NHTSA 10165919): engine wiring harness shorting at left front cylinder head
- GM PIT-4730A: Additional diagnostic information for U0140 or U0073
- GM PIT5713: engine harness shorting at left front cylinder head (2019-2020 Silverado 1500, Sierra 1500)
- GM PIC5894: Multiple cluster warnings, U-codes, pinched DLC branch
- GM PIT5422: Intermittent MIL, interior lamps or liftgate inoperative, body connector X901
- GM PIT5507E (NHTSA 10141372): DTC U0159 set in instrument cluster and/or body control module
- GM PIT5422: intermittent MIL, inoperative interior lamps or liftgate with U0164 and other U-codes (2010-2015 Equinox, Terrain)
- GM SB-16-NA-115: radio inoperative with no communication and DTC U0184
- NHTSA complaint ODI 11269828: 2013 Chevrolet Malibu
- GM 20NA114 (NHTSA 10186079): false setting of DTC U0212
- GM 17-NA-219 (NHTSA 10190267): MIL with P249D, P249E, U029D, U029E
- GM PIT5499: ABS/MIL, low brake fluid or Service Trailer Brake with U0420 (2015-2016 Colorado/Canyon)
- GM 19NA202: Service StabiliTrak, rear stop lamps inoperative, C0595/C0277/U0422 (2016-2019 Malibu)
- GM PIT5586: gauges inoperative, no start and multiple U-codes including U0422 (2017 trucks/SUVs)
- GM PIT5405C (NHTSA 10113356): loss of power steering assist
- GM 15169: 2015 City Express crank, no start with U0100, U1000, B2193
- NHTSA complaint ODI 11546032: 2023 Chevrolet Suburban
- NHTSA complaint ODI 11769860: 2022 Chevrolet Silverado 1500
- GM PIP5427: SES light with P2635, U0074 and/or U18A2 (2014-2016 full-size trucks and SUVs)
- GM 07-02-32-007 (NHTSA 10022958): diagnostic tips for power steering inoperative, DTCs including U2105 and U2107
- GM 02114 (NHTSA 10007456): no crank with loss of communication to several modules, DTCs including U2105
- NHTSA complaint ODI 10382088: 2005 Chevrolet Corvette
- GM 07-02-32-007 (NHTSA 10022958): power steering inoperative, DTCs including U2105 and U2107
- NHTSA complaint ODI 841105: 2005 Chevrolet Corvette
- NHTSA complaint ODI 11745949: 2017 Chevrolet Volt
- NHTSA complaint ODI 11752752: 2018 Chevrolet Volt
- NHTSA ODI consumer complaints flat files
- GM bulletin SB-09-09-41-004 (NHTSA 10032335)
- GM bulletin PIC-5641 (NHTSA 10043633)
- GM bulletin 15-NA-074 (NHTSA 10190386)
- GM 3249: intermittent SIR lamp with B0044 or B0026 (2003-2004 Avalanche, Escalade, Yukon)
- NHTSA complaint ODI 1475477: 2016 Chevrolet Silverado 1500, rear impact
- NHTSA complaint ODI 1713668: 2012 Chevrolet Silverado 1500, belts retracted
- SB-07-09-41-010A: airbag light on, DTC B0071 and B0081 set; diagnose and replace right front seat belt buckle if necessary
- NHTSA complaint ODI 11210477 (2012 Chevrolet Silverado 1500)
- NHTSA complaint ODI 1613746: 2013 Chevrolet Malibu, B101D-00
- NHTSA complaint ODI 1412532: 2015 Chevrolet Malibu, service airbag message
- GM PIT5236B: OnStar module does not support all B101D symptom codes
- NHTSA complaint ODI 1890140: 2014 Chevrolet Silverado 1500, OnStar disconnected
- NHTSA complaint ODI 10503695 (2003 Chevrolet Impala)
- NHTSA complaint ODI 10273914: 2005 Chevrolet Colorado ABS light
- NHTSA complaints ODI 11219167 (Cadillac SRX) and 11165895 (Chevrolet Equinox)
- Chevrolet 19NA202: This Technical bulletin provides a procedure to correct conditions of Service Stabilitrak
- NHTSA complaint ODI 10577667: 2008 Chevrolet Malibu, C0277 BCM code
- NHTSA complaints ODI 10724228 (Silverado) and 11427758 (Suburban)
- GM 3599: stability system disabled or Service Stability message with C0455
- GM SB-09-02-36-001: inconsistent power steering assist, C0545 in history
- GM 040235009: noisy steering column, lack of assist, C0460 and C0545
- GM 3795: electric steering inoperative with C0545
- GM PIP-4478A: all wheel drive inoperative with DTC C0550 (2007-2011 Acadia, Enclave, Outlook, Equinox, Traverse and others)
- GM PI1398A: radio turning on and off with intermittent MIL and C0800, B1325 and/or B1517 (2012 Cruze)
- NHTSA complaint ODI 10615094: 2012 Chevrolet Cruze C0800 07
- NHTSA complaint ODI 10224551 (2002 Chevrolet Impala, EBCM code list)
- NHTSA complaint ODI 10839606 (2002 Chevrolet Impala, C1233)
- NHTSA complaint ODI 11497601 (2022 Silverado 1500, C159C)
- GM PIP3423P: P0016-P0019, P0008 or P0009 - inspect for loose timing chains or tensioners, then the crank reluctor
- GM PIP3423P: P0016-P0019, P0008 or P0009 set, inspect for loose timing chains or tensioners, then the crankshaft reluctor
- GM Special Coverage 18369: P0013 from a broken wire in the exhaust cam actuator solenoid, 2014 2.0L turbo
- GM bulletin PIP-4629: diesel engine turbo DTC P2563 or P003A with reduced power
- Hard start or no start with P0087, P0088, P0191 or P128E from fuel system debris (bulletin 16-NA-102)
- P0088 and P128E after fuel system or engine repair (bulletin PIP5119)
- P0089 and P2293: replace the fuel rail, not the pump (bulletin PIP5988)
- MIL with P228C, P0089 and/or P006C (bulletin N252524760)
- NHTSA complaint ODI 2253985: 2023 Chevrolet Traverse, P0091
- NHTSA complaint 11155877: 2013 Chevrolet Equinox
- Engine cranks but will not start, P00C6 may set, low fuel rail pressure (PIP-5130-B)
- GM PIT6281B: SES MIL with BCM U1962 and ECM P00FF (2025 Escalade, Suburban, Tahoe, Yukon and variants)
- NHTSA complaint ODI 11182030, 2012 Chevrolet Cruze: dealer read P015B (O2 sensor delayed response) with P0171 after the car jerked and shuddered
- Hard start, no start, rough running or low fuel pressure (bulletin PIP5151F)
- Hard start or no start with P0087, P0088, P0191 or P128E (bulletin 16-NA-102)
- GM 22-NA-087: replace the fuel injector and wiring harness for P0201-P0206 and/or P0216 (2021-2022 trucks and SUVs)
- P0265: NHTSA bulletin 10113953 (MIL with P0264 or P0265 and P0300, possible wiring concern at the number 2 injector)
- GM PIP5159C: P0300-P0308, loose spark plug wire with a missing C clip, 2014-2019 GM V8
- GM PIP5861: misfire P0300-P0308 from a lifter that has come apart, 2022 GM full-size trucks and SUVs
- PIP5985: Knock sensor connector X160 concern, P0326 and/or P0331
- PIP5303B: Flashing or solid MIL with misfire, rough idle or cruise bump; P0326 or P0331
- PIP5273: Service engine soon lamp with P0326 or P0331 in history
- PIP5773B: Knock sensor 2 performance P0331, inspect and do not replace components
- GM 24-NA-058: MIL with P062F, P040B, P041B, P0422 and others (2024 Silverado/Sierra 2500/3500)
- NHTSA complaint ODI 11632222
- NHTSA complaint ODI 11681144
- NHTSA complaint ODI 11757544
- GM 24-NA-080: 2016-2019 Chevrolet Volt, MIL on, replace the EGR valve
- NHTSA complaint ODI 11635899
- GM PIP5841A to PIP5841E: condensation freezing in the crankcase pressure sensor, DTC P04FB
- PI1439: Diagnostic tip for MIL on with only P0503 set
- NHTSA complaint ODI 11290127: 2016 Chevrolet Silverado 1500, P050D, two injectors replaced
- GM PIP5993C: P050D cold start misfire, replace all injectors together
- GM bulletin 17-NA-342: Service Brake Assist message at startup with P050F (2018 Enclave, Traverse)
- P0522: NHTSA bulletin 10007581 (Erratic oil pressure with P0522 or P0523 on GMT 610 or GMT800)
- P0522: NHTSA bulletin 10010025 (Erratic oil pressure with P0522 and/or P0523)
- GM 01972: erratic oil pressure with P0522 or P0523 on GMT610/GMT800 trucks and SUVs
- NHTSA complaint ODI 11659123: 2019 Chevrolet Malibu, brakes not responding with P0014, P0017, P0556
- NHTSA complaint ODI 11471869: 2017 Chevrolet Malibu, stiff brake pedal with P0556
- GM 21-NA-045: Impala/Malibu power brake booster vacuum pipe replacement
- GM PI1032: P059F on 2014 Spark (harness rubbing on the air shutter assembly)
- NHTSA complaint ODI 10787380: Chevrolet Cobalt 2010, P0641 described as sensor reference voltage circuit/open
- NHTSA complaint ODI 11765609: 2014 Chevrolet Impala Limited, engine shut off while driving and crank-no-start with P069E
- GM PIP5750A: P06DD, P06DA, P06DB from engine wiring harness
- GM PIP5407: P06DD or no or low oil pressure, timing chain tensioner guide and oil pump (2014–2016 V8 trucks, SUVs, Camaro, Corvette)
- GM PIP5750A: P06DD, P06DA, P06DB from engine wiring harness concerns (2019–2021 Silverado 1500, Sierra 1500)
- GM 24-NA-088: control valve body replacement for MIL, not shifting or default mode with P0747
- GM special coverage N252536751: 2022 full-size SUVs, control valve wear, P0747
- NHTSA complaint ODI 10392545: 2007 Chevrolet Express 3500 P0894
- GM PIP5202 / PIP5202A (NHTSA 10112080, 10114769)
- GM Service Update 27660 / GCUS-3-620 (NHTSA 10135428)
- 20-NA-047: Front or rear crankshaft oil leak with MIL and P1101
- PIE0730: Engineering information request: MIL, no start and/or stall with P129F (Equinox, Terrain)
- PIP5964C: Replace K111 FPDCM if no start, stalling, loss of power etc. are verified with P023F or P129F
- NHTSA complaint ODI 10186385: 2002 Chevrolet Impala, P1626
- GM PIT5643: P0689 and/or P1682, arcing or corrosion at X3 terminal 51 of the underhood fuse block (2013–2014 Enclave, Acadia, Traverse)
- NHTSA complaint 1290006: 2010 Chevrolet Traverse, P182E and C0561
- NHTSA complaint 11571609: 2017 Chevrolet Volt, reduced propulsion with P1E00
- NHTSA preliminary evaluation PE23022: loss of motive power due to the battery energy control module (2016–2019 Chevrolet Volt)
- Charge incomplete or interrupted, MIL with P1E00 (Preliminary Information PIC5803C)
- NHTSA complaint 11710280: 2020 Chevrolet Silverado 1500
- P228C setting: inspect fuel, replace high-pressure pump and inlet line (bulletin PIP5385D)
- NHTSA complaint ODI 11196596
- GM bulletin PIT6396A: Revision of PIT6396
- GM PIT6522: K160 brake module sets P0606 with P0562 and/or P25A2 (2021–2026 trucks and SUVs)
- NHTSA complaint ODI 10966553
- GM PIP4873A: P0C2B with or without P2797
- GM PIP5888A: ECM calibration to correct P2C7A (2022 Silverado/Sierra 1500)
- GM 23-NA-193: DTCs P20EE, P22FE, P2C7A and others (2023 Silverado/Sierra 1500)
- GM 08-07-30-021H: Loss of high-speed GMLAN communications, intermittent no crank
- NHTSA complaint ODI 11737106: 2019 Chevrolet Silverado 1500
- NHTSA complaint ODI 11423686: 2019 Chevrolet Silverado 1500
- NHTSA complaint ODI 11749281: 2020 Chevrolet Silverado 1500
- NHTSA complaint ODI 11282684: 2014 Chevrolet Silverado 2500
- NHTSA complaint ODI 11599344: 2017 Chevrolet Silverado 2500
- NHTSA complaint ODI 11603488: 2022 Chevrolet Silverado 2500
- NHTSA complaint ODI 11600634: 2017 Chevrolet Silverado 2500
- NHTSA complaint 11082248: 2015 Chevrolet Colorado, U0420 torque sensor not learned
- NHTSA complaint 11366940: 2016 Chevrolet Colorado, loss of power steering with U0415/U0420
- GM PIT5713: engine harness shorting at left front cylinder head (2019-2020 Silverado/Sierra 1500)
- GM PIT5369: 2015 City Express crank, no start with U0100 and U1000
- NHTSA complaint ODI 10251915: 2005 Chevrolet Cobalt
- NHTSA complaint ODI 10176882: 2006 Chevrolet Equinox
- NHTSA complaint ODI 700186: 2005 Chevrolet Cobalt
- NHTSA complaint ODI 11706596: 2017 Chevrolet Volt
- NHTSA complaint ODI 11669821: 2017 Chevrolet Volt
- NHTSA complaint ODI 10312467, 2007 Chevrolet Cobalt: P0230 returned after two fuel pump relay replacements; car lost power intermittently
- NHTSA complaint ODI 11632222: Chevrolet Volt 2017, P0598 with blown EGR fuse
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
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