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Service bulletin 020846004

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 id634531
Published by NHTSA2002-10-03
Manufacturer's number020846004
Manufacturer's date2002-04-01
NHTSA componentEQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

NHTSA's summary

SUBJECT REGARDING CELLULAR ERROR MESSAGES RECEIVED WHEN TRYING TO CONNECT TO ONSTAR FOR 2000 - 2002 PASSENGER CARS AND LIGHT DUTY TRUCKS WITH FACTORY-INSTALLED ON -STAR. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories

Vehicles listed
BUICK BUICK
CADILLAC CADILLAC
CHEVROLET CHEVROLET
GMC GMC
OLDSMOBILE OLDSMOBILE
PONTIAC PONTIAC

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