C0800: GM chassis control module voltage fault
GM C0800 StabiliTrak, steering or ABS code
Severity: Inspect soon
Owners report the C0800 setting with a Check StabiliTrak message, lost power steering assist and in one case a steering wheel that would not turn, so steering and stability help may be affected.
It gets more serious if:
- Stop: Stop and have it checked if the steering becomes heavy or will not turn, the red BRAKE light comes on, or dash power cuts out while driving.
C0800 in short
On Chevrolet vehicles, C0800 is a voltage-related fault in a chassis control module. Cruze owners see it with a Check StabiliTrak message and the radio cycling; a Volt bulletin links it to power steering service. If steering or brakes feel different or power cuts out, stop and have it inspected soon.
A Cruze owner was told the codes were "C0800, 07" and high voltage, after the dash display lost power and showed Check StabiliTrak. GM bulletin PI1398 covers a Cruze with the radio turning on and off, intermittent lights and C0800, B1325 or B1517.
GM bulletin PIC-5667 is titled service power steering C0800 on the 2011-2013 Volt, and a GMC Terrain owner had the steering gear replaced after C0800. A 2013 Regal, LaCrosse and Malibu bulletin says C0800 symptom 07 can show with wheel speed codes, which are to be diagnosed first.
Only summaries of bulletins were read.
Pick your make
C0800 is a manufacturer-specific code: its meaning depends on who built the car.
Other makes: meaning not verified. Check with a scan tool that reads manufacturer definitions.
Most likely causes
Cause 1: Voltage supply problem to the module
Supported by vehicle data- Why it ranks here
- A Cruze owner was told high voltage, and the Cruze bulletin pairs C0800 with radio and lighting glitches that point at supply.
- What would change this
- Rises if the battery or charging voltage is out of range or the radio cycles. Falls if voltage is steady.
Cause 2: Wheel speed sensor codes setting it
Supported by vehicle data- Why it ranks here
- GM PIC5837 says C0800 symptom 07 can show with C0035, C0040, C0045 or C0050 and to fix those first (2013 Regal, LaCrosse, Malibu).
- What would change this
- Rises if wheel speed codes are stored. Falls if not.
Cause 3: Power steering control or steering gear (some models)
Possible — needs testing- Why it ranks here
- The Volt bulletin and a Terrain repair connect C0800 to power steering.
- What would change this
- Rises if steering assist is lost. Falls if steering is normal.
What to test first
Start at step 1. Each result tells you what it means and where to go next.
Step 1: Read all codes from every module and note wheel speed, steering and low or high voltage codes, and check battery and charging voltage.
IfWheel speed codes C0035-C0050 are stored
It meansGM says diagnose those first.
IfVoltage is out of range or the radio cycles
It meansLook at the power supply.
IfSteering assist is lost
It meansHave the steering system checked.
Points to: Power steering control or steering gear (some models)
Symptoms
- Check StabiliTrak message
- Radio turning on and off
- Steering assist lost or steering will not turn Gets more serious: stop and have it checked.
How to fix
This is a safety-critical system, so we explain the code but don't give repair steps. Have it inspected by a qualified technician.
Parts and cost context
- Power steering control module:Steering parts are costly; confirm the cause before replacing; get a quote.
Labor varies by vehicle and shop; get a quote before you approve a repair.
Compare used part prices on PartPriceGuideOn your vehicle
ChevroletYour car
2012–2014 · Cruze
Supported by vehicle dataGM bulletin PI1398 covers radio cycling with C0800, B1325 or B1517 and a Cruze owner saw C0800 with Check StabiliTrak. Summary only.
2011–2013 · Volt
Supported by vehicle dataGM bulletin PIC-5667 covers service power steering C0800. Summary only.
PIC5837Status unverified
ABS lamp with Service Stability message and C0800
2013malibu · NHTSA 10113040
Says to diagnose the wheel speed codes first. Summary only.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PI1398AStatus unverified
Radio on and off with intermittent MIL and C0800
2012cruze · NHTSA 10113672
Earlier revision of PI1398. Summary only.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PI1398Status unverified
Radio on and off with intermittent MIL and C0800
2014cruze · NHTSA 10139432
Summary only.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
PIC-5667Status unverified
Service power steering C0800
2011–2013volt · NHTSA 10044238
Summary only.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Related codes
C0800 questions
Is C0800 a brake code or a steering code?
On GM it shows up with StabiliTrak, steering and ABS lights, so it is not tied to one system.
Sources and review
- NHTSA complaint ODI 10615094: 2012 Chevrolet Cruze C0800 07
- NHTSA complaint ODI 11570916: 2022 GMC Terrain C0800 steering
- GM PIC-5667: service power steering C0800 (2011-2013 Volt)
- GM PI1398: radio turning on and off with intermittent MIL and C0800, B1325 or B1517 (2012-2014 Cruze)
- GM PIC5837: ABS lamp with Service Stability message and C0800 symptom 07 with C0035, C0040, C0045 or C0050 (2013 Regal, LaCrosse, Malibu)
- GM PI1398A: radio turning on and off with intermittent MIL and C0800, B1325 and/or B1517 (2012 Cruze)
- 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