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Service bulletin PIE0625A

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 id10200163
Published by NHTSA2021-08-09
Manufacturer's numberPIE0625A
Manufacturer's date2021-06-10
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL

NHTSA's summary

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a turn signal not canceling and/or mis-canceling.

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.

Components

Lighting, Turn signals

Vehicles listed
CADILLAC ESCALADE ESV2021
CADILLAC ESCALADE NA2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE2020, 2021
CHEVROLET SILVERADO 15002020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2021
CHEVROLET TAHOE2021
GMC SIERRA 15002020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2021
GMC YUKON XL2021

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

Other bulletins for the same vehicles and component
21-NA-1662023-09-29. Service bulletin. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
PIE06252021-05-03. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a turn signal not canceling and/or mis-canceling.