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Service bulletin PIC6489B

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 id10232792
Published by NHTSA2023-03-13
Manufacturer's numberPIC6489B
Manufacturer's date2023-02-06
NHTSA componentTRAILER HITCHES; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

This Preliminary information communicates to the technicians that if they have a Lyriq that comes in for this concern to replace the A11 radio receiver while GM is working on a solution.

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

Equipment and accessories, Trailer hitch

Vehicles listed
CADILLAC redundant LYRIQ2023

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