GM Service Manual Online
For 1990-2009 cars only

Daytime Running Lamps (DRL) Disable Procedure

Subject:Daytime Running Lamps (DRL) Disable Procedure

Models:2000 Chevrolet and GMC C/K Pickup (Silverado and Sierra), M/L, S/T Models
2000 Oldsmobile Bravada



This bulletin is being revised to update the model information. Please discard Corporate Bulletin Number 99-08-42-007 (Section 08 -- Body and Accessories).


Built After the Following VIN Breakpoints:

Make

Model

Plant

VIN Breakpoint

Chevrolet/GMC

C/K

Fort Wayne, IN

YZ148829

Chevrolet/GMC

C/K

Oshawa, ON

Y1138990

Chevrolet/GMC

C/K

Pontiac, MI

YE153117

Chevrolet

M/L

Baltimore, MD

YB100097

GMC

M/L

Baltimore, MD

YB500028

Chevrolet/GMC

S/T

Linden, NJ

YK107069

Chevrolet

S/T

Shreveport, LA

Y8120731

GMC

S/T

Shreveport, LA

Y8120744

Isuzu

S/T

Shreveport, LA

Y8700845

Chevrolet/GMC/Oldsmobile

S/T

Moraine, OH

Y2134012

Important: This service bulletin is not applicable to vehicles sold in Canada.

A new feature has been introduced for the above listed vehicles to temporarily disable the Daytime Running Lights (DRL). Customers have been informed of this new feature via a supplement to the Owner's Manual. Vehicles first sold in Canada, and some early production vehicles, will not have the DRL disable feature.

To temporarily turn off the Automatic Headlamp System and the Daytime Running Lamps feature use the following procedure:

  1. Turn the ignition to RUN.
  2. Press the DOME OVERRIDE button four times within six seconds. A chime will sound informing you that the system is off. The system will remain disabled until the ignition is cycled off and on again.
  3. To return to the automatic mode, push the DOME OVERRIDE button four times within six seconds (chime will sound), or turn the ignition off and on again.