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Service bulletin PIC6390B

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 id10216354
Published by NHTSA2022-07-25
Manufacturer's numberPIC6390B
Manufacturer's date2022-06-06
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary information communicates a parts restriction is in place for the Central Gateway Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.

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
CADILLAC CT42020
CADILLAC CT52020
CHEVROLET CORVETTE2020

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