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Service bulletin PIP5853B

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 id10224305
Published by NHTSA2022-10-17
Manufacturer's numberPIP5853B
Manufacturer's date2022-09-29
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This PI communicates to dealers and technicians a possible diode issue in the TCCM, and how to properly diagnose for a diode issue.

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 45002019, 2020, 2021, 2022, 2023 (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.