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Service bulletin PIT6455A

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 id11032623
Published by NHTSA2026-05-13
Manufacturer's numberPIT6455A
Manufacturer's date2026-05-04
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This PI communications information that Engineering is investigating the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module 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.

Trouble codes named

B1B2F, U1624

Vehicles listed
CHEVROLET SILVERADO 15002025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002025, 2026 (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.