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
3Original wording in English
CADILLAC, CHEVROLET, GMC
Reported code forms C0379
This Preliminary Information communication provides information to the technician about vehicles that may have a service 4WD message displayed in the Driver Information Center. Technician may find Diagnostic Trouble…
ISUZU
Reported code forms C0379
DIAGNOSTIC TROUBLE CODE C0379 SET, SERVICE 4WD LIGHT ON, 4WD INOPERATIVE. *TT
CHEVROLET, GMC
Reported code forms C0379
DIAGNOSTIC TROUBLE CODE (DTC) C0379 SET, SERVICE 4WD LIGHT ON, 4WD INOPERATIVE. *TT
Check vehicle applicability
74A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | ESCALADE | 2013 |
| Cadillac | ESCALADE | 2012 |
| Cadillac | ESCALADE | 2011 |
| Cadillac | ESCALADE | 2010 |
| Cadillac | ESCALADE | 2009 |
| Chevrolet | AVALANCHE | 2013 |
| Chevrolet | AVALANCHE | 2012 |
| Chevrolet | AVALANCHE | 2011 |
| Chevrolet | AVALANCHE | 2010 |
| Chevrolet | AVALANCHE | 2009 |
| Chevrolet | AVALANCHE | 2008 |
| Chevrolet | AVALANCHE | 2007 |
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.