GM Service Manual Online
For 1990-2009 cars only

Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpful in the short periods after dawn and before sunset. Fully functional daytime running lamps are required on all vehicles first sold in Canada.

The DRL system will come on when the following conditions are met:

    • The ignition is on.
    • The exterior lamps control is in DRL mode and not in the defeat position.

When the DRL are on, only the parking lamps will be on. The other lamps will not be on. The instrument panel will be lit.

When you turn the headlamp switch off, the headlamps will go off, and your DRL lamps (parking lamps) will illuminate.

To turn off the DRL, turn the exterior lamp control to the off position or shift into PARK (P). The DRL will stay off until the control is toggled again or the vehicle is shifted out of PARK (P).

This procedure applies only to vehicles first sold in the United States.