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Service bulletin 876526

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 id602990
Published by NHTSA1999-01-25
Manufacturer's number876526
Manufacturer's date1998-11-01
NHTSA componentELECTRICAL SYSTEM:IGNITION:MODULE

NHTSA's summary

SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *YC

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

Electrical system, Ignition

Vehicles listed
CADILLAC DEVILLE1999
CADILLAC ELDORADO1999
CADILLAC SEVILLE1999
OLDSMOBILE AURORA1999

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