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Service bulletin PIC6602E

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 id11019985
Published by NHTSA2025-07-01
Manufacturer's numberPIC6602E
Manufacturer's date2025-06-30
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.

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
BRIGHTDROP ZEVO 6002023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE2024, 2025
CHEVROLET SILVERADO 15002022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2022, 2023, 2024
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025
GMC SIERRA 15002022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2022, 2023, 2024
GMC YUKON XL2022, 2023, 2024

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