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Service bulletin 990526001

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 id6088982
Published by NHTSA2000-01-12
Manufacturer's number990526001
Manufacturer's date1999-11-01
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS

NHTSA's summary

INFORMATION REGARDING DAYTIME RUNNING LIGHTS (DRL) FLICKER CONDITION. *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

Lighting, Headlights

Vehicles listed
CHEVROLET 6H1994 to 2000
CHEVROLET 7H1994 to 2000
CHEVROLET B71994, 1995, 1996, 1997, 1998, 1999, 2000
GMC 6H1994 to 2000
GMC 7H1994 to 2000
GMC B71994, 1995, 1996, 1997, 1998, 1999, 2000

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