GM Service Manual Online
For 1990-2009 cars only

Object Number: 810544  Size: B3

The lever on the left side of the steering column operates the exterior lamps.

Turn the outside part of the lever to operate the lamps.

The exterior lamps control has three positions:

OFF: Turn the control to this position to turn off all lamps, except the Daytime Running Lamps (DRL) or if the Automatic Headlamp System is working.

(Parking Lamps): Turn the control to this position to turn on the parking lamps, together with the following:

    • Sidemarker Lamps
    • Taillamps
    • License Plate Lamp
    • Instrument Panel Lights
(Headlamps): Turn the control to this position to turn on the headlamps, together with the previously listed lamps and lights.

Daytime Running Lamps

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 make your headlamps come on at a reduced brightness when the three following conditions are met:

    • The ignition is on with the engine running,
    • the exterior lamps control is off or the parking lights are on, and
    • the parking brake is released.

When the DRL are on, only your headlamps will be on at a reduced brightness. The taillamps, sidemarker and other lamps won't be on. Your instrument panel won't be lit up either.

When you move the exterior lamps control to the headlamp position, your DRL will go off and your headlamps will come on. The other lamps that come on with your headlamps will also come on.

When it begins to get dark, the headlamps will automatically switch from DRL to the regular headlamps. See "Automatic Headlamp System" following.

When you turn the exterior lamp control to off, the regular lamps will go off and your headlamps will change to the reduced brightness of DRL provided it is not dark outside. DRL will also come on if only the parking lamps are being used.

As with any vehicle, you should turn on the regular headlamp system when you need it.

Automatic Headlamp System

Your vehicle is equipped with an automatic light sensor on top of the instrument panel, on the passenger's side of the vehicle, so be sure it is not covered. If it is, the headlamps will remain on continuously.

There is a delay in the transition between the daytime and nighttime operation of the DRL and the Automatic Headlamp Systems so that driving under bridges or bright overhead street lights does not affect the system. The DRL and Automatic Headlamp Systems will only be affected when the light sensor sees a change in lighting lasting longer than this delay.

When it is dark enough outside, or you are driving through a parking garage, heavy overcast weather or a tunnel, the system will turn on your low-beam headlamps at normal brightness. Along with your vehicle's headlamps, the taillamps, sidemarker, parking lamps and the instrument panel lights will also turn on. The radio display will dim.

As with any vehicle, you should turn on the regular headlamps when you need them.

To temporarily disable your vehicle's DRL and Automatic Headlamp Systems functions, do the following:

  1. Before turning the ignition key to ON or START, set the parking brake.
  2. Then turn the ignition key to ON or START.
  3. • The Automatic Headlamp System will not turn on under any conditions, even in darkness.
    • The DRL will not turn on.

The DRL and Automatic Headlamp System functions will stay off with the ignition on, until you release the parking brake. Once the parking brake is released the DRL will turn on if it is daylight or the Automatic Headlamp System will turn on if it is dark enough outside.

If you turn the ignition key to ON or START and then set the parking brake, the DRL will turn off (in all conditions) and the Automatic Headlamp System will remain on (if dark enough outside). Any other uses of the parking brake after the engine is turned on will have no effect on the normal Automatic Headlamp System operation.

Headlamps On Reminder

If you turn the ignition off, remove the key, open the door and leave the lamps on, a tone will remind you to turn off your lamps.