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Service bulletin PIT6157C

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 id11016982
Published by NHTSA2025-04-15
Manufacturer's numberPIT6157C
Manufacturer's date2025-04-09
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, it is normal operation and nothing should be replaced.

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.

Vehicles listed
BUICK ENCLAVE2025
BUICK ENCORE2025
CADILLAC CT52024, 2025
CADILLAC LYRIQ2025
CADILLAC OPTIQ2025
CADILLAC VISTIQ2026
CADILLAC XT42024, 2025
CHEVROLET BLAZER EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2023, 2024, 2025
CHEVROLET EQUINOX EV2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAVERSE2024, 2025
GMC ACADIA2024, 2025
GMC CANYON2023, 2024, 2025

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