GMC OBD2 codes
Codes where we have reviewed, vehicle-specific evidence for this make.
GMC shares its bulletins with Chevrolet: cam timing codes on V6 models, EVAP codes on Sierra trucks used in dust, a transmission code on nearly new Sierras and a wet-weather misfire pattern on the 2018 Terrain. Check the model year and engine against each bulletin before relying on it.
B0014 that comes and goes with seat position
GM bulletin PIT-4718 covers the airbag light with B0014 on the 2007 and 2008 Acadia and Enclave, and says the fault may be intermittent and change with seat position. A code that comes and goes is still an airbag fault, so have the system inspected 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.
B0015 stored after a crash
One 2010 owner complaint to NHTSA reports B0015 stored after a crash in which the air bags and belts did not work as expected. This is a single report and it needs testing to confirm. Air bag and belt systems are safety-critical, so have the vehicle inspected by a qualified shop. The source is an owner report, not a verified repair.
B0015 from high resistance in the front seat belt pretensioners
One 2011 GMC Acadia owner complaint describes a dealer finding B0015 with the wiring circuits testing good and high resistance in both front seat belt anchor pretensioners. The dealer recommended replacing the pretensioners and connectors and reprogramming the module. This is an airbag system, so have it inspected by a qualified shop. It is a single owner report, so it needs testing to confirm.
B0022 from high resistance at the front belt pretensioners
An NHTSA owner complaint on a 2011 GMC Acadia quotes a technician finding B0022 with excessive resistance in both front seat belt anchor pretensioners, and recommends connector position assurance clips and pretensioners. Other owners describe a GM special coverage adjustment for a wiring failure, though we have not checked whether it is still available. This is a seat belt and airbag system 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.
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.
B0052 logged with open seat belt tensioner loops after a crash
An owner complaint on a 2010 GMC Yukon XL describes a side impact crash where the readout showed B0052 with driver and passenger seat belt buckle tensioner deployment loops open. The owner says no airbag deployed. This is a restraint 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 from a corroded kick panel connector
An ALLDATA tech tip for a 2013 Yukon XL 5.3L lists B0085 as a left front impact sensor circuit high or low. The cause was a corroded connector in the left kick panel, and the fix was a new connector and pins after an earlier sensor swap did not help. No bulletin number is given. This is an industry reference page, so it is labelled vehicle data rather than confirmed by bulletin. Airbag circuits are safety critical, so have the system inspected by a qualified shop.
B0085 with an intermittent airbag light
An owner complaint on a 2020 GMC Terrain reports an intermittent airbag light and an OnStar diagnostic that returned B0085. The dealer did not investigate because the light went out. This is an airbag system, so have it inspected by a qualified shop. The source is owner reports and it needs testing to confirm.
B0085 stored with another airbag code
A NHTSA complaint for a 2014 Acadia says an independent shop found B0085 together with a second airbag code. The report gives no cause or fix. The source is owner reports and it needs testing to confirm. Airbag faults are safety critical, so have the system inspected by a qualified shop.
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 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.
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.
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 behind a Service Stability message
GM bulletin 3396 lists C0131 among the codes that can set in the brake control module with a Service Stability message on 2004 to 2005 full-size GM SUVs and trucks. Stability and brake control are safety critical, so have the system inspected rather than attempting repairs 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.
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 C0287 and a damaged X411 connector
GM information bulletin PIT5427B covers service lights with C0186 and 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.
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.
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.
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.
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.
C0710 tied to steering wheel installation
GM bulletin PIT4225F ties C0710 to how the steering wheel is installed on the steering shaft on the 2013 Yukon Denali. The summary says it may come with another chassis code and that the technician must make sure the wheel is properly installed. Steering and ABS 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.
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 from timing chain stretch on the 3.6L V6
GM bulletin 12-06-01-009F ties P0008 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.
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.
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.
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.
P0091 with reduced power that clears after the car sits
One owner of a 2016 GMC Yukon XL reports reduced power mode with P0091, and says the fault cleared after the vehicle sat for about 20 minutes. This is a single complaint as filed by the owner and has not been verified by NHTSA. The source is owner reports, and it needs testing to confirm the cause.
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.
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.
P0112 with a reduced engine power message or check engine light
GMC bulletin 3192 covers a reduced engine power message or check engine light with any combination of a list of codes that includes P0112 on the 2002 to 2004 Envoy. 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.
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 a service engine light or reduced power
GM bulletin 3042 covers a service engine soon light or reduced engine power with P0120 on 2003 Sierra and Yukon trucks. 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.
P0146 in a revised GM diagnostic entry
GM bulletin 030604051 is a revised diagnostic entry on P0146, an insufficient activity fault in the bank 1 sensor 3 oxygen sensor circuit, on the 1997 Safari. 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.
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.
P0202 with the engine wiring harness inspected for damage
GM bulletin PIT5751 covers a Service Engine Soon light with P0202 on the 2020 Sierra 1500 and has the dealer inspect the engine wiring harness for damage. 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.
P0202 closed with a harness and injector replacement
GM PIE0802A is an engineering information closure for a check engine light with P0202 on the 2024 Yukon XL. The summary says the technician replaces the wire harness and the affected fuel injector. 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.
P0206 with a damaged engine wiring harness
GM preliminary information PIT5751C covers the service engine soon light with a run of injector circuit codes including P0206 on 2020 to 2021 Sierra 1500 and Yukon XL. It tells the dealer to inspect the engine wiring harness for damage. 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.
P0208 in a GM bulletin on injector driver circuits
GM bulletin 3238C covers fuel injector driver circuit codes, including P0208, on 2004 to 2005 models. The summary says this includes LLY engines and does not give the repair. 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.
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 concerns
GM bulletin 030604032 covers a check engine light with no drivability concerns and P0220 among the codes set, on 2003 Sierra 1500, Yukon and related GM trucks. 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.
P0231 after water reached the fuel system control module
The source is an NHTSA owner complaint about a 2009 Sierra 1500. After a pothole splash the truck stalled with several codes including P0231. The dealer replaced the fuel system control module, which the owner says was dripping water. This is one owner report, and it needs testing to confirm on other trucks.
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.
P023F possibly tied to the fuel pump driver module
GM bulletin PIP5964C lists no start, stalling, rough idle, loss of power and a lit warning lamp with various codes on 2021 to 2023 GM crossovers and vans, and technicians replace the fuel pump driver control module in some cases. The part of the summary we read does not name P023F, so this is background only. This needs testing to confirm, and we have not confirmed the bulletin is still current.
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.
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.
P0331 and knock sensor service calibration
GMC bulletin 24-NA-180 gives repair information for knock sensor service calibration codes, P0331, on the 2015 to 2024 Canyon. Other GMC bulletins listed for this truck cover a possible knock sensor connector concern and a possible emerging issue. 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.
P0331 as a possible emerging issue on the Acadia
GMC preliminary information PIP5836A covers a possible emerging issue and recommendations for P0331, updated to change the recommendations. Our notes cover the 2022 Acadia. We only read the NHTSA summary, so we do not know what the recommendations are. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0333 from a fault at the ECM X2 connector
GM bulletin 20-NA-207 tells the technician to inspect for an electrical concern at the ECM X2 connector when the MIL is on with P0333. It covers Escalade, Yukon, Sierra and related 2014 to 2020 trucks and SUVs. 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.
P0358 with a service engine soon lamp on the Sierra 1500
GMC bulletin PIP5147A mentions a service engine soon lamp with the general misfire code and a run of ignition coil circuit codes including P0358, on 2014 Sierra 1500 vehicles. 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.
P0358 that may be mislabeled
GMC bulletin 01772A says the ignition coil codes in this range are mislabeled, so the code shown on the Tech 2 may not reflect the actual ignition circuit, coil or module, or where the problem is detected. This was listed for the 2004 Canyon, including P0358. 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.
P0380 with a no-charge condition
GM bulletin 01927 covers a no-charge condition with P0380 and a second code on 2001 to 2004 Sierra 1500 models. 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.
P0381 on 2024 to 2025 Sierra HD trucks
GMC bulletin PIP6090 says P0381 is under investigation on 2024 to 2025 Sierra 2500 HD and 3500 HD trucks. Technicians are told to clear the code and return the vehicle to the customer. 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.
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.
P0498 in a 2022 Sierra owner complaint
An NHTSA owner complaint on a 2022 GMC Sierra 1500 reports a check engine light at start with P0498 read by an independent mechanic. The owner points to a GM EVAP purge pump program that did not include their VIN. The source is owner reports, and it needs testing to confirm any link.
P0498 in a GM bulletin on EVAP canister performance
GM engineering information bulletin PIE0528 covers a check engine light for EVAP canister performance on 2019 models, and lists P0498 among its codes. The summary says GM asked the field for warranty parts from affected vehicles. It gives no repair. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
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.
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.
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.
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.
P0550 with flashing 4WD switch lights and no 4WD
GMC bulletin 040421004 covers flashing 4WD switch indicator lights and inoperative 4WD with P0550 and a chassis code set. Our notes cover the 2002 to 2005 Envoy. 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.
P0556 with loss of brake assist
An owner of a 2020 GMC Terrain reports a sudden loss of brake assist at about 50 mph with P0556. The dealer recommended a vacuum pump, exhaust camshaft and timing parts. Loss of brake assist is a safety issue, so have the vehicle inspected promptly and do not drive it until it is checked. This comes from an owner report to NHTSA, not a bulletin, so it is labelled vehicle data rather than confirmed by bulletin.
P0563 on Silverado and Sierra trucks
GM bulletin 24-NA-050 covers Silverado and Sierra vehicles that set a control module code together with P0563, which are system voltage codes. Our notes cover the 2024 Sierra 2500 HD. We only read the NHTSA listing, not the full bulletin. We have not confirmed the bulletin is 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.
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
GMC bulletin 050525002 gives diagnostic information on the antilock brake system for several ABS codes and P0609, on the 2003 to 2005 Savana. The ABS is a safety system, so have it inspected by a qualified technician. 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.
P060C with reduced acceleration and a stall
One NHTSA complaint on a 2024 GMC Sierra 2500 reports P060C with a Service ESC message, reduced acceleration, several warning lights, shudder, and a stall at an intersection. The owner says the dealer did not fix it. It is a single complaint that NHTSA has not verified, so it needs testing to confirm. The source is owner reports, not a diagnosis.
P0615 with a blown battery distribution fuse on the Yukon
A 2022 GMC Yukon owner reports P0615 after a no-start with no starter engagement, and says the dealer found a blown fuse on the battery distribution fuse block and replaced it. A later failure involved a blown main battery fuse and an engine failure. This is a single complaint, not verified by NHTSA. The source is an owner report, which is not verified.
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.
P062F with no-starts and stalling on the Acadia
A 2012 GMC Acadia owner complaint on NHTSA reports a no-start after fuelling, then a check engine light with P062F, random no-starts and stalling. The owner says the dealer pointed to the chassis electronic control module. The source is owner reports, not a bulletin or a confirmed repair.
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.
P064A after water entered the fuel control module
A 2009 Sierra 1500 owner complaint to NHTSA reports a stall with P064A and related codes after water entered the fuel system control module through a poor seal. The dealer replaced and reprogrammed the module, and the owner says the removed part was dripping water. This needs testing to confirm, and it is an owner narrative only.
P069E with a stall after water reached a control module
An owner of a 2009 Sierra 1500 reports a stall and no restart after water splashed into the fuel system control module through a poor seal. The dealer diagnosed and replaced the module. Check the module seal and connector for water. This comes from owner reports to NHTSA, not a bulletin, so it is labelled vehicle data rather than confirmed by bulletin.
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.
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 with slipping and delayed engagement, 2002 Sierra
GM bulletin 030730011B covers slipping and delayed engagement with P0701 among a list of transmission codes on a 2002 Sierra. We only read the NHTSA summary, so the repair is not stated. 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.
P0716 with no reverse or third gear
GM bulletin 16-NA-013 covers no reverse, no third gear and P0716 on several 2016 models, including the Acadia, Enclave, Equinox, Impala and Traverse. The repair is new 3-5-reverse clutch plates. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0723 from a speed sensor on 6T70 and 6T75 transmissions
GM bulletin 07-07-30-019 covers a check engine light and poor performance with P0723 on vehicles with the 6T70 or 6T75 transmission. It says to diagnose and replace the speed sensor. 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.
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.
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.
P0742 from a sticking torque converter clutch
GM preliminary information PI0999 covers a lit check engine light, a sticking torque converter clutch and an engine shudder when stopping, with P0742 set, on some GM SUVs. We only have the NHTSA summary, not the bulletin itself. Pay attention to a shudder as the vehicle comes to a stop. 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.
P0752 with poor shifts into 2nd or 3rd on the Acadia
One owner of a 2008 GMC Acadia reports that the car would not shift reliably into 2nd or 3rd with P0752 stored. A GMC dealer replaced the transmission computer and a shift solenoid. This is one owner report to NHTSA, not a bulletin, so the shift solenoid circuit and its wiring are worth checking first. The source is owner reports and is labelled vehicle data rather than confirmed.
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.
P0777 with no forward movement
GM bulletin PI1419 gives diagnostic tips for no forward movement with P0777 or a related code active or in history on the 2015 Canyon and Colorado. Ask a dealer to follow it before a transmission is replaced. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P0797 from hub seal ring wear in the 6T75
GM bulletin 07-07-30-022 ties P0797 to a 6T75 transmission binding on the 3-4 or 4-3 shift on 2007 to 2008 Acadia and related models. The summary says to measure the side clearance between the hub seal rings and groove and replace the hub and seal rings if needed. An owner also reports the car dropping out of gear. 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.
P07B4 with a Transmission Service message
Owner complaints on 2022 to 2023 Sierra 1500 report P07B4 with a flashing check engine lamp and a Transmission Service message when shifting into reverse. In one case the dealer followed service information to replace the gear shift control module. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
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.
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.
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.
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.
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 limp mode
A 2017 GMC Sierra 1500 owner complaint to NHTSA reports P182E and a general transmission code with limp mode. Shutting the truck off for 10 minutes let it drive again. The source is an owner report to NHTSA, so this is labelled vehicle data rather than confirmed by bulletin.
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.
P20C1 with the DEF light and a speed limit
One NHTSA owner complaint on a 2021 GMC Sierra 3500 reports the DEF light and check engine light on, a speed limit, and P20C1 read as a reductant heater control circuit open. It is a single owner narrative, so it needs testing to confirm. The source is owner reports, not a diagnosis.
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
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.
P228C from loose engine computer terminals
GM bulletin PIP5209C says 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.
P2534 with a burnt TCM fuse on the Canyon
A 2015 GMC Canyon owner complaint on NHTSA reports a burnt transmission control module fuse with P2534 and the truck stuck in one gear. The source is owner reports, not a bulletin or a confirmed repair.
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.
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.
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.
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.
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.
P2723 on the 6T70 and 6T75 automatics
GM TSB 07-07-30-019 covers the 6T70 and 6T75 transmissions with a check engine light, poor performance and codes including P2723 on some GM SUVs. It concerns diagnosis and speed sensor replacement. Check the transmission speed sensors as part of the diagnosis. We only have the NHTSA summary. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2732 with no reverse and no shift past third, 2024 Sierra 1500
GM bulletin 24-NA-181 covers no reverse and no shift past third with P2732 on the 2024 Sierra 1500. We only read the NHTSA summary, so the repair is not stated. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
P2732 with no reverse, fixed by a control valve overhaul
GM bulletin 25-NA-014 has the control valve overhauled, covering the plate and a worn check ball, for no reverse with P2732 on the 2024 Sierra 1500. 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.
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.
P2762 with a loss of power and a transmission hot light
The source is an NHTSA owner complaint about a 2008 Acadia. A parts-store scan gave P2762 for the torque converter clutch along with other codes, and the owner reports a loss of power and a transmission hot light. This is an owner report only, and it needs testing to confirm the cause.
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 a solenoid stuck off after valve body repair
A 2020 Sierra 1500 owner complaint reports P2817, a solenoid stuck off, a month after a valve body repair. It is a single complaint. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
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.
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.
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.
U0151 when the scan tool cannot reach the airbag module
GM bulletin PIT-4857 covers 2007 to 2009 HD Silverado and Sierra trucks with the airbag lamp on, where a scan tool cannot talk to the airbag module and other modules set U0151 against it. GM says a new airbag module may fix it only briefly, so the circuit should be checked first. This is an airbag system fault, so have it inspected. 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.
U0170 with no crank and an erratic cluster on the Acadia
GM bulletin 15-NA-004 gives repair information for an intermittent no crank, radio and HVAC not working and erratic cluster operation with U0170 and many other network codes on the 2013 to 2016 Acadia. We only read a truncated summary, not the repair itself. We have not confirmed the bulletin is still current, so this is labelled vehicle data rather than confirmed by bulletin.
U029D from moisture at the NOx sensor connector
GM bulletin 17-NA-219 gives a diagnostic tip for U029D 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.
U160F with many lost communication codes
One owner of a 2025 GMC Sierra 1500 lists dealer-found active codes including U160F, a lost communication with the brake system control module, along with a lost communication code for the engine control module and several others. As this involves the brake system, have it inspected. This is a single complaint. The source is owner reports.
U160F with lost brake module communication
A 2023 Yukon owner complaint lists 27 active codes after 9 repair attempts, including U160F (brake system control module lost communication on both CAN buses) and stability control disabled. Brakes and stability control are safety systems, so have the vehicle inspected. The source is owner reports, not a confirmed fault pattern, so this is labelled vehicle data.
P0016: Crankshaft and intake camshaft positions do not agree (bank 1, sensor A)
- Acadia 2007–2012 · Supported by vehicle data · 1 bulletin
- Sierra 1500 2014 · Supported by vehicle data · 1 bulletin
- Terrain 2010–2016 · Supported by vehicle data · 2 bulletins
P0017: Crankshaft and exhaust camshaft positions do not agree (bank 1, sensor B)
- Acadia 2007–2012 · Supported by vehicle data · 1 bulletin
- Terrain 2010–2016 · Supported by vehicle data · 2 bulletins
P0700: Transmission module requests the check engine light
- Sierra 1500 2023–2025 · Supported by vehicle data · 1 bulletin
B0014: Driver seat side airbag deployment loop fault
- Acadia 2007–2008 · Supported by vehicle data · 1 bulletin
B0022: Front seat belt pretensioner circuit fault (varies by maker)
- Acadia 2011–2014 · Supported by vehicle data
B0041: Airbag deployment loop open, left front (driver-side) side airbag circuit (Chevrolet)
- All models 2000 · Supported by vehicle data · 1 bulletin
B0052: Airbag computer logged a deployment command (Chevrolet and GMC)
- Yukon XL 2010 · Supported by vehicle data
B0085: GM left front side impact sensor circuit fault
- Yukon XL 2013 · Supported by vehicle data
- Acadia 2014 · Possible — needs testing
- Terrain 2020 · Possible — needs testing
- Yukon 2007–2008 · Possible — needs testing · 2 bulletins
B101D: Control module internal hardware fault (Chevrolet and GMC; module varies)
- Acadia 2011–2019 · Supported by vehicle data · 3 bulletins
C0045: Left rear wheel speed sensor circuit fault (GM)
- Savana 2008–2010 · Supported by vehicle data · 1 bulletin
- Terrain 2010–2012 · Supported by vehicle data · 1 bulletin
C0050: Right rear wheel speed sensor circuit fault (GM)
- Acadia 2009–2017 · Supported by vehicle data · 2 bulletins
- Savana 2003–2010 · Supported by vehicle data · 2 bulletins
C0131: Brake pressure circuit fault (GM)
- Yukon 2004–2005 · Supported by vehicle data · 1 bulletin
C0161: ABS computer does not trust the brake pedal switch signal
- Savana 2012 · Supported by vehicle data · 1 bulletin
- Sierra 1500 2012 · Supported by vehicle data · 1 bulletin
- Yukon 2012 · Supported by vehicle data · 1 bulletin
- Yukon XL 2012 · Supported by vehicle data · 1 bulletin
C0186: Sideways (lateral) acceleration sensor signal faulty or not believable
- Envoy 2006 · Supported by vehicle data · 1 bulletin
- Terrain 2010–2017 · Supported by vehicle data · 1 bulletin
C0265: ABS computer reports a fault in its relay circuit
- Envoy 2002–2005 · Supported by vehicle data · 1 bulletin
- Sierra 1500 1999–2006 · Supported by vehicle data · 2 bulletins
- Yukon 2000–2006 · Supported by vehicle data · 1 bulletin
C0287: Stability computer flags a fault in a motion-sensing signal circuit
- Envoy 2006 · Supported by vehicle data · 1 bulletin
- Terrain 2010–2017 · Supported by vehicle data · 1 bulletin
- Yukon 2000–2002 · Supported by vehicle data · 1 bulletin
C0455: Steering angle sensor fault (GM)
- Sierra 1500 2007–2016 · Supported by vehicle data · 1 bulletin
C0545: Electric power steering torque sensor fault (GM)
- Canyon 2015 · Supported by vehicle data
C0550: A chassis control module reports an internal fault
- Envoy 2004 · Supported by vehicle data · 1 bulletin
- Yukon 2003 · Supported by vehicle data · 1 bulletin
C0710: Steering wheel position sensor signal fault (GM)
- Yukon 2013 · Supported by vehicle data · 1 bulletin
C159C: Trailer brake control switch fault (Chevrolet, GMC)
- Sierra 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
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
- Terrain 2010–2012 · Supported by vehicle data
P0036: A fault in the heater control circuit of the downstream oxygen sensor on bank 1
- Acadia 2013–2015 · Supported by vehicle data · 1 bulletin
P0089: Fuel pressure regulator not holding the pressure the computer asks for
- Sierra 1500 2014–2024 · Supported by vehicle data · 2 bulletins
P0091: Fuel pressure regulator control circuit reading low (direct-injection fuel pump)
- Yukon XL 2016 · Supported by vehicle data
P00C6: Fuel rail pressure too low while the engine is cranking
- Sierra 1500 2014–2018 · Supported by vehicle data · 2 bulletins
P00FF: Body control module asked for the check engine light to be turned on
- Yukon 2025 · Supported by vehicle data · 2 bulletins
- Yukon XL 2025 · Supported by vehicle data · 2 bulletins
P0112: The intake air temperature sensor signal reads too low in voltage, which the computer interprets as extremely hot intake air
- Envoy 2002–2004 · Supported by vehicle data · 1 bulletin
P011A: The two engine coolant temperature sensors disagree with each other
- Savana 2007–2008 · Supported by vehicle data · 1 bulletin
P0120: Throttle or pedal position sensor A signal outside its normal range
- Sierra 1500 2003 · Supported by vehicle data · 1 bulletin
P0146: The computer sees no signal from the oxygen sensor farthest downstream on bank 1 (sensor 3)
- Safari 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)
- Sierra 1500 2004 · Supported by vehicle data · 1 bulletin
P0202: Fuel injector circuit fault on cylinder 2
- Sierra 1500 2020 · Supported by vehicle data · 1 bulletin
- Yukon XL 2024 · Supported by vehicle data · 1 bulletin
P0206: Cylinder 6 fuel injector circuit fault
- Sierra 1500 2020–2021 · Supported by vehicle data · 1 bulletin
P0208: The engine computer found an electrical fault in the control circuit of fuel injector 8
- Sierra 1500 2004–2005 · Supported by vehicle data · 1 bulletin
P0216: Fuel injection timing control circuit fault
- Sierra 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
- Sierra 1500 2003 · Supported by vehicle data · 1 bulletin
- Yukon 2003 · Supported by vehicle data · 1 bulletin
P0237: Turbo boost pressure sensor signal too low
- Terrain 2023–2026 · Supported by vehicle data · 1 bulletin
P0265: Cylinder 2 fuel injector circuit reads high voltage
- Acadia 2017 · Supported by vehicle data · 1 bulletin
P0300: Random or multiple-cylinder misfire detected
- Terrain 2018 · Supported by vehicle data · 1 bulletin
P0331: Knock sensor 2 (bank 2) signal is outside the expected range or performance
- Acadia 2022 · Supported by vehicle data · 1 bulletin
- Canyon 2015–2024 · Supported by vehicle data · 5 bulletins
P0333: Knock sensor 2 circuit fault on bank 2 (the side of the engine away from cylinder 1)
- Yukon 2014–2020 · 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)
- Canyon 2004 · Supported by vehicle data · 1 bulletin
- Sierra 2014 · Supported by vehicle data · 1 bulletin
P0380: The computer found a fault in glow plug circuit A on a diesel engine
- Sierra 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
- Sierra 2500 HD 2024–2025 · Supported by vehicle data · 1 bulletin
- Sierra 3500 HD 2024–2025 · Supported by vehicle data · 1 bulletin
P0442: EVAP system small leak detected
- Sierra 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0446: EVAP vent control performance problem
- Sierra 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0449: EVAP vent valve circuit fault
- Sierra 1500 2019–2025 · Supported by vehicle data · 1 bulletin
P0455: EVAP system large leak detected
- Sierra 1500 2019–2025 · 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
- Terrain 2019 · Supported by vehicle data · 1 bulletin
- Sierra 1500 2022 · Possible — needs testing
P04FB: Crankcase ventilation pressure sensor reading does not make sense
- Acadia 2020–2024 · Supported by vehicle data · 1 bulletin
P0506: Idle control system RPM lower than expected
- Terrain 2019 · Supported by vehicle data · 1 bulletin
P050D: Cold start rough idle
- Acadia 2024–2025 · Supported by vehicle data · 2 bulletins
- Canyon 2020 · Supported by vehicle data · 1 bulletin
P0522: Engine oil pressure sensor or switch circuit reading too low in voltage
- Sierra 1500 2004–2009 · Supported by vehicle data · 4 bulletins
P0550: The computer is not getting a usable signal from the power steering pressure sensor or switch.
- Envoy 2002–2005 · Supported by vehicle data · 1 bulletin
P0556: Brake booster pressure sensor circuit range or performance
- Terrain 2020 · Supported by vehicle data
P0563: The computer sees system voltage that is too high
- Sierra 2500 HD 2024 · Supported by vehicle data · 1 bulletin
P0601: Control module internal memory checksum error
- Sierra 1500 2016–2018 · Supported by vehicle data · 1 bulletin
P0606: A control module found a fault in its own processor or programming
- Sierra 1500 2019–2026 · Supported by vehicle data · 2 bulletins
P0609: The engine computer cannot pass its vehicle speed signal (output B) to other modules
- Savana 2003–2005 · Supported by vehicle data · 1 bulletin
P060C: The engine or vehicle computer found a problem with its own main processor
- Sierra 2500 HD 2024 · Supported by vehicle data
P0615: Problem in the starter relay circuit
- Yukon 2022 · 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
- Sierra 2500 HD 2011–2014 · Supported by vehicle data · 1 bulletin
P062F: A control module found an error in its own stored memory (EEPROM)
- Acadia 2012 · Supported by vehicle data
P0641: The 5-volt reference supply (circuit A) that powers several engine sensors is out of range
- Terrain 2013–2015 · Supported by vehicle data · 1 bulletin
P069E: Fuel pump control module requested MIL illumination
- Sierra 1500 2009 · Supported by vehicle data
P06DD: Oil pump pressure control not responding, as if stuck off
- Sierra 1500 2014–2021 · Supported by vehicle data · 3 bulletins
P0701: Transmission control system range or performance problem
- Sierra 2002 · Supported by vehicle data · 1 bulletin
P0716: Input or turbine speed sensor signal out of range
- Acadia 2016 · Supported by vehicle data · 1 bulletin
P0723: Output shaft speed sensor signal drops in and out
- Acadia 2007 · Supported by vehicle data · 1 bulletin
P0736: Reverse gear ratio is wrong
- Sierra 1500 2001–2019 · Supported by vehicle data · 1 bulletin
- Sierra 2500 HD 2001–2019 · Supported by vehicle data · 1 bulletin
P073E: Transmission unable to engage reverse
- Terrain 2025 · Supported by vehicle data · 1 bulletin
P0742: Torque converter clutch stuck on
- Sierra 2500 HD 2001–2013 · Supported by vehicle data · 1 bulletin
- Terrain 2013–2014 · Supported by vehicle data · 1 bulletin
P0747: Pressure control solenoid A stuck on
- Sierra 1500 2020–2024 · Supported by vehicle data · 2 bulletins
P0752: Shift solenoid A stuck on
- Acadia 2008 · Supported by vehicle data
P0761: Shift solenoid C performance or stuck off
- Sierra 1500 2011–2013 · Supported by vehicle data · 1 bulletin
P0777: Pressure control solenoid B stuck on
- Canyon 2015 · Supported by vehicle data · 1 bulletin
P0797: Pressure control solenoid C stuck on
- Acadia 2007–2008 · Supported by vehicle data · 1 bulletin
P07B4: Park position sensor or switch circuit reading high
- Sierra 1500 2022–2023 · Supported by vehicle data
P0843: Transmission fluid pressure sensor/switch A circuit, high input
- Acadia 2010 · Supported by vehicle data · 1 bulletin
- Terrain 2010 · Supported by vehicle data · 1 bulletin
- Yukon 2007 · 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
- Terrain 2021–2023 · Supported by vehicle data
P1516: Throttle actuator control (TAC) module fault (GM)
- Sierra 2003 · Supported by vehicle data · 1 bulletin
P1682: Engine computer’s two ignition voltage feeds disagree (GM)
- Acadia 2007–2017 · Supported by vehicle data · 3 bulletins
P182E: Internal mode switch reports an invalid range in a GM automatic transmission
- Acadia 2009–2017 · Supported by vehicle data · 2 bulletins
- Savana 2010 · Supported by vehicle data · 1 bulletin
- Sierra 2010 · Supported by vehicle data · 1 bulletin
- Sierra 1500 2017 · Supported by vehicle data
- Terrain 2009–2017 · Supported by vehicle data · 2 bulletins
- Yukon 2010 · Supported by vehicle data · 1 bulletin
- Yukon XL 2010 · Supported by vehicle data · 1 bulletin
P1870: GM: transmission component slipping, usually at the torque converter clutch
- Sierra 1500 2000–2001 · Supported by vehicle data
P20C1: The engine computer found an open circuit in the third (C) heater control circuit for the diesel exhaust fluid (DEF) system
- All models 2021 · Supported by vehicle data
P2227: The engine computer sees a barometric pressure reading that does not fit the engine load and throttle opening
- Sierra 1500 2019–2023 · Supported by vehicle data · 1 bulletin
- Terrain 2018–2024 · Supported by vehicle data · 1 bulletin
P228C: Fuel pressure regulator 1 cannot bring rail pressure up to target
- Terrain 2010–2018 · Supported by vehicle data · 2 bulletins
P2534: Voltage on the ignition switch run/start circuit read by the computer is too low
- Canyon 2015 · Supported by vehicle data
P2535: Ignition switch run/start signal reading high
- Sierra 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
- Savana 2007–2009 · Supported by vehicle data · 1 bulletin
P25A2: Brake control module has asked for the check engine light
- Sierra 1500 2019–2026 · Supported by vehicle data · 2 bulletins
P261F: Coolant pump A control circuit stuck on
- Acadia 2021–2022 · Supported by vehicle data · 1 bulletin
P2636: A second fuel pump (pump B) is not delivering enough fuel
- Sierra 3500 HD 2015–2016 · Supported by vehicle data · 1 bulletin
P2723: Pressure control solenoid E stuck off or performing poorly
- Acadia 2007–2008 · Supported by vehicle data · 1 bulletin
- Sierra 1500 2006–2009 · Supported by vehicle data · 1 bulletin
- Terrain 2011 · Supported by vehicle data · 1 bulletin
- Yukon 2006–2009 · Supported by vehicle data · 1 bulletin
P2732: Pressure control solenoid F performance or stuck off
- Sierra 1500 2024 · Supported by vehicle data · 2 bulletins
P2762: Torque converter clutch pressure control solenoid circuit range or performance fault
- Savana 2011–2012 · Supported by vehicle data · 1 bulletin
- Acadia 2008 · Possible — needs testing
P2817: Pressure control solenoid H performance or stuck off fault in an automatic transmission
- Acadia 2024 · Supported by vehicle data · 2 bulletins
- Sierra 1500 2020 · Supported by vehicle data
P2C7A: Diesel NOx catalyst (SCR) efficiency below threshold on bank 1, catalyst 2
- Sierra 1500 2020 · Supported by vehicle data · 1 bulletin
U0104: A module on the network stopped hearing the cruise control module
- Sierra 1500 2017–2018 · Supported by vehicle data · 1 bulletin
U0126: A module on the network stopped hearing the steering angle sensor
- Sierra 1500 2014–2016 · Supported by vehicle data · 1 bulletin
U0151: Lost communication with the restraints (airbag) control module
- Sierra 2007–2009 · Supported by vehicle data · 1 bulletin
U0159: A module on the network stopped hearing the parking assist control module
- Sierra 1500 2014–2018 · Supported by vehicle data · 1 bulletin
U0170: Lost communication with restraints system sensor A
- Acadia 2013–2016 · Supported by vehicle data · 1 bulletin
U029D: A module on the network stopped hearing the first (upstream) NOx sensor module
- Canyon 2016–2018 · Supported by vehicle data · 1 bulletin
U0452: A module received data from the restraints (airbag) control module that did not make sense
- Sierra 1500 2014–2017 · 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
- Sierra 1500 2025 · Supported by vehicle data
- Yukon 2023 · Supported by vehicle data
B0015: Driver seat belt pretensioner firing circuit fault
- Acadia 2011 · Possible — needs testing
- Yukon XL 2010 · Possible — needs testing
B0026: GM frontal airbag deployment loop fault
- Envoy 2005–2006 · Possible — needs testing · 1 bulletin
- Yukon 2005 · Possible — needs testing
P0231: Low voltage in the secondary circuit that powers the fuel pump
- Sierra 1500 2009 · Possible — needs testing
P023F: Fuel pump control circuit fault
- Acadia 2021–2023 · Possible — needs testing · 1 bulletin
P064A: The fuel pump control module reports a fault
- Sierra 1500 2009 · Possible — needs testing
Sources and review
- GM PIT-4718: air bag indicator on with DTC B0014 and/or B0021, may change with seat position
- NHTSA complaint 11661872 (2010 GMC Yukon XL)
- NHTSA complaint 11089727 (2011 GMC Acadia)
- NHTSA complaint ODI 1463542 (2011 GMC Acadia)
- 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 2093280: 2010 GMC Yukon XL, T-bone crash
- Yukon Air Bag Light On (2013 GMC Yukon XL tech tip)
- NHTSA complaint ODI 11384441 (2020 GMC Terrain)
- NHTSA complaint ODI 11556823 (2014 GMC Acadia)
- GM bulletin 4132: SIR light on, DTCs B0085, B0086, B0087 and B0088
- GM PIT5236J: DTC B101D stored in the telematics communication interface control module
- 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 bulletins naming C0050 (cache summaries)
- GM 3396: Service Stability message, DTCs C0290, C0292, C0131 or C0196 set in the EBCM
- 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 PIT5427B: service lights with C0196, C0186, C0287, C0710 and other codes; inspect X411 connector (2010-2017 Equinox and Terrain)
- 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
- GM 030525002: intermittent traction off lamp with DTC C0287 (2000-2002 full-size SUVs)
- GM PI0639C: Service Stabilitrak message and DTC C0455 or C0710, steering angle sensor connector
- 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 PIT4225F: ABS lamp then Service Stability message, DTC C0710 set in the EBCM
- 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 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 PIT5336: MIL on with O2 sensor codes including P0036, wiring chafed on the A/C hose coupling
- Service engine soon light with P0089 and fuel pressure codes (bulletin PIP5279A)
- NHTSA complaint ODI 1636540: 2016 GMC Yukon XL, P0090 and P0091
- Intermittent crank no start with P0011 or P00C6 (bulletin PIP5130J)
- GM PIT6281: SES MIL with BCM U1962 and ECM P00FF (2025 Escalade, Suburban, Tahoe, Yukon and variants)
- 3192: GMC bulletin: reduced engine power message or check engine light with a list of codes including P0112
- GM PIP-4660 (NHTSA 10032888): coolant sensor DTCs P011A, P2184 and P2185 on diesel vans and trucks
- Gmc 3042: Service engine soon light or reduced engine power with P0120, P0220, P1516, P1518
- Gmc 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)
- GM PIT5751: SES MIL with P0201 to P0206 and P0216, inspect engine wiring harness for damage (2020 Sierra 1500)
- GM PIE0802A: Yukon XL, check engine lamp with P0202, replace wire harness and affected injector
- PIT5751C: SES light with DTCs P0201-P0206 and P0216, inspect engine wiring harness
- 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
- Gmc bulletin 030604032: Check engine light with no drivability concerns and P0120, P0220, P1516 or P1518
- NHTSA complaint ODI 10586161, 2009 GMC Sierra 1500: stall after water entered the fuel system control module; P069E, P0231, P025A, P064A
- GM PIP5927E: reduced power with DTC P0237 and/or P0299, damaged charge air inlet pipe connection at turbocharger
- GM PIP5964C: no start, stalling and MIL with various codes (fuel pump driver control module)
- P0265: NHTSA bulletin 10083141 (Diagnosing P0264 or P0265 with P0300)
- GM PIP5511: Flashing MIL, P0300, random misfire after extended steady driving in humid or wet conditions
- 24-NA-180: Knock sensor service calibration, P0326 and P0331
- PIP5836A: Possible emerging issue and recommendations for P0331
- GM bulletin 20-NA-207 (NHTSA 10209097): MIL on, DTC P0333 set, inspect ECM X2 connector
- PIP5147A: SES lamp with P0300 and P0351-P0358
- 01772A: Mislabeled P0351-P0358
- 01927: No-charge condition with DTCs P0380 and P0621
- PIP6090-gmc: DTC P0381 under investigation
- GM 23-NA-073: P0442, P0446, P0455 or P0449 from dust intrusion into the canister and vent solenoid
- NHTSA complaint ODI 11696792
- GM PIE0528: check engine light for EVAP canister performance, DTCs P0442, P0455, P0446, P0449, P0498 (2019 models)
- GM TechLink: Possible Condensation in Crankcase Pressure Sensor Assembly (PIP5841)
- GM N192266090: charge air cooler outlet disconnected from throttle body
- GM 24-NA-244: PCM programming for cold start rough idle with P050D
- GM 21-NA-104: ECM calibration for P050D
- P0522: NHTSA bulletin 10032450 (Inspect for wire harness chafing near connector X108 (SES light, reduced power))
- 040421004: GMC bulletin: 4WD switch indicator lights flashing, 4WD inoperative, codes C0327 and P0550
- NHTSA complaint ODI 11766529: 2020 GMC Terrain, loss of brake assist with P0556
- 24-NA-050: Silverado and Sierra setting P0606 and P0562 or P0563
- GM PIP5609: P0601-P0604 and related ECM codes, check powers and grounds
- 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 11764802: 2024 GMC Sierra 2500, P060C, reduced acceleration and stall
- NHTSA complaint ODI 11760118: 2022 GMC Yukon, P0615 with blown fuse on battery distribution fuse block
- GM PIT5503: Service Charging System message or SES lamp with P0621 and/or P0622 (2011-2014 Silverado, Sierra)
- NHTSA complaint ODI 11222369 (2012 GMC Acadia)
- GM PIT5424 (NHTSA 10115068): 2013-2015 Equinox and Terrain hard start with P0641 and injector codes
- NHTSA complaint ODI 10586161 (2009 GMC Sierra 1500)
- NHTSA complaint ODI 10586161: 2009 GMC Sierra 1500, stall and no restart after water entered the fuel system control module, P069E
- GM PIP5555: P06DD, oil pump control solenoid damaged or broken (2015–2018 Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade)
- GM 23-NA-210: MIL with P18AE and/or P0700 set in the TCM on low-mileage vehicles
- Gmc 030730011B: Transmission slips, delayed engagement, DTCs including P0701
- GM 16-NA-013: Replace 3-5-reverse clutch plates: no reverse, no third, P0716/P0717
- GM bulletin 07-07-30-019 (NHTSA 10022704)
- PIP4379N: No engagement into drive, delayed or no reverse, or range inhibit
- GM PIP6077B: no drive/no reverse with P07E5 or P073E
- PIP-4290 / PIP4290A: Engine surge or stall at a stop, DTC P0742, TCC applied
- PI0999: MIL on, torque converter clutch sticking, shudder when stopping, DTC P0742
- GM special coverage N242454441: transmission control valve wear, P0747
- NHTSA complaint 10761992: 2008 GMC Acadia, P0752
- GM PIP5100A: will not move forward or reverse, codes including P0761
- GM PI1419: No forward movement with P0777 or P2723
- GM 07-07-30-022: 6T75 binding on 3-4 or 4-3 shift, DTC P0797 (2007-2008)
- NHTSA complaint ODI 11715584: 2022 GMC Sierra 1500, P07B4
- 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
- 24-NA-139: Replace fuel pump driver control module for no start, stalling, loss of power with P023F/P129F
- GM 3040: Service Engine Soon and/or reduced engine power, DTCs P0120, P0220, P1516 and/or P1518
- GM PIT4649B: SES MIL with P1682, battery draw and/or no start (2007–2013 Acadia, Enclave, Outlook, Traverse)
- GM 17-NA-084: check engine light on with DTC P182E
- NHTSA complaint 1854815: 2017 GMC Sierra 1500, P0700 P182E
- GM 3047: harsh TCC apply and/or DTC P1870, 4L80E
- NHTSA complaint 11454519: 2021 GMC Sierra 3500
- GM 18-NA-020: charge air cooler replacement for moisture (P0300, P0299/P2227)
- GM 23-NA-002: CAC icing, check engine light, possible P0299, P2227, P0300
- P00C6 and/or P228C: recheck engine computer terminals (bulletin PIP5209C)
- NHTSA complaint ODI 11324591: 2015 GMC Canyon
- 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 20NA073: loss of brake assist, P0606 with C-codes or P25A2 (2019–2020 Silverado, Sierra and others)
- GM bulletin 22-NA-077, DTC P261F Coolant Pump A Stuck On (NHTSA 10210284)
- GM 17067: product emissions recall, 6.6L LML diesel with dual fuel tanks, P2636
- 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
- TSB 07-07-30-019: 6T70/6T75 check engine light, poor performance, DTCs include P2723
- Gmc 24-NA-181: No reverse, no shift past third, P2732
- Gmc 25-NA-014: Control valve overhaul for no reverse and P2732
- GM PI-0690: erratic transmission shifting and MIL, DTCs P0961, P0965, P0969 or P2762
- NHTSA complaint ODI 11110594, 2008 GMC Acadia
- GM PIP6005: possible damaged turbine shaft seal causing P2817
- NHTSA complaint 2166412: 2020 GMC Sierra 1500, P2817
- GM PIP5682: P2C7A and/or P14D9 may set; ECM calibration under development (2020 Silverado/Sierra 1500)
- GM PIT5586E (NHTSA 10182530): IPC gauges inoperative, no crank, SIR light, DTCs including U0104
- GM PIT5405B (NHTSA 10083324): reduced power, steering assist, engine stall or blank displays with many DTCs
- GM PIT-4857: SIR lamp on, Tech 2 will not communicate with SDM, U0151
- GM PIT5507E (NHTSA 10141372): DTC U0159 set in instrument cluster and/or body control module
- GM 15-NA-004: Intermittent no crank, radio and HVAC inoperative, erratic cluster
- GM 17-NA-219 (NHTSA 10190267): MIL with P249D, P249E, U029D, U029E
- NHTSA complaint ODI 11746696: 2025 GMC Sierra 1500
- NHTSA complaint ODI 11728908: 2023 GMC Yukon
- NHTSA ODI consumer complaints flat files
- NHTSA complaint ODI 1591236 (2014 GMC Acadia)
- GM bulletin PIT-4662: SIR MIL with DTC B0084 and/or B0085 (seat position sensor wiring)
- NHTSA complaint ODI 1966616: 2019 GMC Acadia, vision processing module
- NHTSA complaint ODI 11490095 (2022 Sierra 1500, C159C)
- P0089 and P2293: replace the fuel rail, not the pump (bulletin PIP5988)
- 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)
- 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
- GM PIP5841A to PIP5841E: condensation freezing in the crankcase pressure sensor, DTC P04FB
- NHTSA complaint ODI 2175069: 2021 GMC, P04FB, moisture in the crankcase
- GM PIP5993C: P050D cold start misfire, replace all injectors together
- P0522: NHTSA bulletin 10011049 (Engineering investigation EI 04073: high, low or erratic oil pressure gauge with P0522 and/or P0523)
- 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)
- NHTSA complaint ODI 11757862: 2020 GMC Terrain, burning smell, reduced power, hard pedal with P0556/P0014/P0017
- GM PIT6522: K160 brake module sets P0606 with P0562 and/or P25A2 (2021–2026 trucks and SUVs)
- 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
- NHTSA complaint ODI 10545604: 2007 GMC Acadia, P0700 P0752 P0797
- NHTSA complaint ODI 11742551: 2023 GMC Sierra 1500, P07B4
- PIE0730: Engineering information request: MIL, no start and/or stall with P129F (Equinox, Terrain)
- GM bulletin 19NA276: reduced engine power and/or stall with P1682 and/or P0689 (2013–2017 Enclave, Traverse, Acadia)
- GM PIT5643: P0689 and/or P1682, arcing or corrosion at X3 terminal 51 of the underhood fuse block (2013–2014 Enclave, Acadia, Traverse)
- P228C setting: inspect fuel, replace high-pressure pump and inlet line (bulletin PIP5385D)
- GM bulletin PIT6396A: Revision of PIT6396
- NHTSA complaint ODI 2098431: 2020 GMC Sierra 1500, NOx converter and EGR valve
- NHTSA complaint ODI 2147424: 2020 GMC Sierra 1500, NOx converter and EGR valve
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error