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Service bulletin PIC6629F

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 id11037320
Published by NHTSA2026-09-16
Manufacturer's numberPIC6629F
Manufacturer's date2026-09-10
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

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, 2026
BUICK ENCORE GX2024, 2025, 2026
BUICK ENVISION2024, 2025, 2026
BUICK ENVISTA2024, 2025, 2026
CADILLAC CELESTIQ2025, 2026
CADILLAC CT52025
CADILLAC ESCALADE2025, 2026
CADILLAC ESCALADE ESV2025, 2026
CADILLAC ESCALADE IQ2025, 2026
CADILLAC LYRIQ2024, 2025, 2026
CADILLAC OPTIQ2025, 2026
CADILLAC VISTIQ2026
CADILLAC XT42024, 2025
CHEVROLET BOLT EV2027 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2023, 2024, 2025, 2026
CHEVROLET CORVETTE2024, 2025
CHEVROLET CORVETTE CONVERTIBLE2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE COUPE2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EQUINOX2024, 2025, 2026
CHEVROLET EQUINOX EV2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2022, 2023, 2024, 2025, 2026
CHEVROLET TRAILBLAZER2024, 2025, 2026
CHEVROLET TRAVERSE2024, 2025, 2026
CHEVROLET TRAX2024, 2025, 2026
GMC ACADIA2024, 2025, 2026
GMC CANYON2023, 2024, 2025, 2026
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025, 2026
GMC HUMMER EV SUV2024, 2025, 2026
GMC SIERRA 15002022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2025, 2026
GMC YUKON2022, 2023, 2024, 2025, 2026
GMC YUKON XL2022, 2023, 2024, 2025, 2026

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