CADILLAC, CHEVROLET, GMC

PIT6549

2026-09-21 · NHTSA 11037551

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

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.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.