WenmarOpen by Wenmar Pro

Service bulletin PIT6549

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11037551
Published by NHTSA2026-09-29
Manufacturer's numberPIT6549
Manufacturer's date2026-09-21
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Trouble codes named

U3000

Vehicles listed
CADILLAC ESCALADE2025, 2026
CADILLAC ESCALADE ESV2025, 2026
CADILLAC ESCALADE IQ2025, 2026
CADILLAC ESCALADE IQL2026
CHEVROLET SILVERADO 15002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2024, 2025, 2026
GMC SIERRA 15002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2025, 2026
GMC YUKON XL2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.