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Service bulletin PIT6469A

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 id11026859
Published by NHTSA2025-12-29
Manufacturer's numberPIT6469A
Manufacturer's date2025-12-22
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This preliminary information communicates an issue with the turn signals flashing fast after reprogramming the lighting control module. Dealer are to contact TCSC to obtain the correct cals for the lighting control module.

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
CHEVROLET SILVERADO 25002026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002026 (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.