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Service bulletin 3170C

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 id10010168
Published by NHTSA2004-11-05
Manufacturer's number3170C
Replaces3170D
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS

NHTSA's summary

INSTRUMENT PANEL CLUSTER (IPC) INTERIOR AND/OR HEAD LAMPS FLICKER. *TC

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

Lighting, Headlights

Vehicles listed
GMC ENVOY1999 to 2001
GMC JIMMY1999 to 2004
GMC SONOMA1999, 2000, 2001, 2002, 2003, 2004
OLDSMOBILE BRAVADA1999, 2000, 2001

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

Other bulletins for the same vehicles and component
02-08-42-001I2017-08-31. Service bulletin. This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not
01-08-42-001K2017-08-31. Service bulletin. This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
3170E2006-02-16. Service bulletin. IPC, INTERIOR LIGHTS AND/OR HEADLAMPS FLICKER. *AK FB2
0508420032005-05-14. Service bulletin. HIGH INTENSITY DISCHARGE (HID) HEADLAMPS - DISPOSAL INSTRUCTIONS. *TTT
000592001-03-19. Service bulletin. SOME CUSTOMERS MAY HAVE PURCHASED CERTAIN VEHICLES EQUIPPED WITH THE ZR2 SUSPENSION PACKAGE THAT MAY HAVE HAD AN ERROR ON THE WINDOW STICKER. THE LABEL LISTED DAYTIME RUNNING LAMPS (DRL) AS A STANDARD FEATURE ON THE VEHICLE, BUT THE DRL FEATURE WAS DEACTIVATED. *TT
001432001-02-23. Service bulletin. SPECIAL POLICY ADJUSTMENT REGARDING THE DAYTIME RUNNING LAMPS ACTIVATION. *TT
000592001-02-23. Service bulletin. SOME CUSTOMERS MAY HAVE PURCHASED VEHICLES EQUIPPED WITH THE ZR2 SUSPENSION PACKAGE THAT MAY HAVE HAD AN ERROR ON THE WINDOW STICKER. THE LABEL LISTED DAYTIME RUNNING LAMPS (DRL) AS A STANDARD FEATURE ON THE VEHICLE, BUT THE DRL FEATURE WAS DEACTIVATED. THIS SPECIAL POLICY COVERS THE ACTIVATION OF THE DRL FEATURE ON THESE VEHICLES. *TT
000592000-12-29. Service bulletin. SUBJECT REGRDING SPECIAL POLICY ADJUSTMENT - DAYTIME RUNNING LAMPS ACTIVATION. *TT