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Service bulletin 01170

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 id10007847
Published by NHTSA2004-07-13
Manufacturer's number01170
Manufacturer's date2004-01-01
Replaces01170A
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

NO COMMUNICATION, MULTIPLE U-DTCS (DIAGNOSTIC TROUBLE CODES), OR IPC (INSTRUMENT PANEL CLUSTER) WARNING INDICATORS ON VEHICLES WITH RPO AN3. 2003-2004 CHEVROLET, GMC AND CADILLAC ALL FULL SIZE TRUCKS AND UTILITIES. *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

Electrical system

Vehicles listed
UNKNOWN UNKNOWN1

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