CADILLAC, CHEVROLET, GMC
PIT6549
Manufacturer communications
- Publication date
- 2026-09-21
- Received by NHTSA
- 2026-09-29
- NHTSA record numbers
- 11037551
Manufacturer summary
Original wording in English
This preliminary information communicates an issue with a service column lock message and DTC U3000. Engineering is working on the issue and in the meantime dealerships are to reset/clear the DTC and perform four sleep cycles to verify the DTC does not return.
Reported code forms
Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| GMC | SIERRA 3500 | 2024 |
| GMC | YUKON | 2026 |
| GMC | YUKON | 2025 |
| GMC | YUKON XL | 2026 |
| GMC | YUKON XL | 2025 |