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 wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
C0398Equipped with Switch activated transfer case (RPO NQH)C0398Range Actuator Position – Range Position CorrelationManufacturer communications
5Original wording in English
CHEVROLET, GMC
Reported code forms C0398
THIS ENGINEERING INFORMATION BULLETIN IS REQUESTING INFORMATION FROM THE DEALERS ON A CUSTOMER CONCERN THAT A SERVICE 4WD MESSAGE DISPLAYED ON THE DIC AND DTC C0398 SET WITHIN THE TRANSFER CASE CONTROL MODULE.
CHEVROLET, GMC
Reported code forms C0398
Engineering Information - Service 4WD Messange Displayed and DTC C0398 - Equipped with Switch activated transfer case (RPO NQH)
CHEVROLET, GMC
Reported code forms C0398
Engineering Information - Service 4WD Messange Displayed and DTC C0398 - Equipped with Switch activated transfer case (RPO NQH)
CHEVROLET, GMC
Reported code forms C0398
Engineering Information – Service 4WD Message Displayed and DTC C0398
CHEVROLET, GMC
Reported code forms C0398
Engineering Information – Service 4WD Message Displayed and DTC C0398 Condition Important: If the customer did not bring their vehicle in for this concern, DO NOT proceed with this EI. Some customers may comment on a…
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 XL | 2016 |
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.