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Service bulletin PIT6155D

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 id11017276
Published by NHTSA2025-04-28
Manufacturer's numberPIT6155D
Manufacturer's date2025-04-28
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates information for B19B0 SYM49 falsely setting.

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 ENVISION2024, 2025
CADILLAC CT52024, 2025
CHEVROLET BLAZER EV2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO EV2024 (the catalog's model; the bulletin names a series or trim of it)
GMC ACADIA2024, 2025
GMC SIERRA EV2024 (the catalog's model; the bulletin names a series or trim of it)

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