Reference meaning
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.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.
Scan worksheet →Manufacturer communications
10Original wording in English
CADILLAC, CHEVROLET, GMC
This Preliminary Information communication provides information to the technician about vehicles that have a “Service 4WD Message” displayed in the Driver Information Center. Technician may find Diagnostic Trouble Codes C0392 or C0396. Technician should check the terminal tension on the Transfer Case Control Module X1 connector.…
CADILLAC, CHEVROLET, GMC
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A “SERVICE 4WD MESSAGE” DISPLAYED IN THE DRIVER INFORMATION CENTER. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODES C0392 OR C0396. TECHNICIAN SHOULD CHECK THE TERMINAL TENSION ON THE TRANSFER CASE CONTROL MODULE X1 CONNECTOR.…
CADILLAC, CHEVROLET, GMC
This Preliminary Information communication provides information to the technician about vehicles that have a ?Service 4WD Message? displayed in the Driver Information Center. Technician may find Diagnostic Trouble Codes C0392 or C0396. Technician should check the terminal tension on the Transfer Case Control Module X1 connector.…
CADILLAC, CHEVROLET, GMC
This Preliminary Information communication provides information to the technician about vehicles that may have a Service 4WD message on the Driver Information Center when operated below 10 degrees Fahrenheit (-12 Celsius). Technician may find C0398 or C0326 stored in the Transfer Case Control Module. For vehicles with Regular Pr…
Check vehicle applicability
63A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | ESCALADE ↗ | 2018 |
| Cadillac | ESCALADE ↗ | 2017 |
| Cadillac | ESCALADE ↗ | 2016 |
| Cadillac | ESCALADE ↗ | 2015 |
| Cadillac | ESCALADE ESV ↗ | 2015 |
| Chevrolet | AVALANCHE ↗ | 2013 |
| Chevrolet | AVALANCHE ↗ | 2012 |
| Chevrolet | SILVERADO ↗ | 2017 |
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.