What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
5Original wording in English
CHEVROLET, GMC
Reported code forms C0455
DIAGNOSTIC TROUBLE CODE C0455, SERVICE REAR WHEEL STEERING, SYSTEM JUMPS FROM 4-WHEEL STEER TO 2-WHEEL STEER. *TT
CADILLAC, CHEVROLET, GMC
Reported code forms C0455
SERVICE STABILITY MESSAGE AND DIAGNOSTIC TROUBLE CODES (DTCS) C0455 OR C0550 SET. *TT GM ADMINISTRATIVE MESSATE. *TT
CHEVROLET, GMC
Reported code forms C0455
SERVICE 4 WHEEL STEER MESSAGE WITH DIAGNOSTIC TROUBLE CODE (DTC) C0455. SIT BULLETIN 1459978. *TT
CADILLAC, CHEVROLET, GMC
Reported code forms C0455
THE SERVICE STABILITY MESSAGE ON THE DIC AND A CODE C0455 DIAGNOSTIC TROUBLE CODE SET AND/OR THEY HAVE A BREAK IN ANTI-LOCK BRAKE SYSTEM (ABS) TELLTALE WITH CHIMING IN COLD WEATHER WITH NO CODE SET. *TT
CHEVROLET, GMC
Reported code forms C0455
SERVICE 4 WHEEL STEER MESSAGE WITH DIAGNOSTIC TROUBLE CODE C0455. *EH
Check vehicle applicability
1A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| GMC | YUKON | 2003 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.