GM Service Manual Online
For 1990-2009 cars only

Object Number: 807418  Size: B2

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

Turn the outside part of the lever with the symbol on it, to operate the lamps. The exterior lamp switch has three positions.

OFF: Turning the switch to this position turns off all lamps and lights, except the Daytime Running Lamps (DRL).

(Parking Lamps): Turning the switch to this position turns on the parking lamps, together with the following:

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

Wiper-Activated Headlamps

This feature turns on the low-beam headlamps, instrument panel cluster backlighting and taillamps when the Twilight Sentinel® is in day mode and after the windshield wipers have been in use for approximately six seconds.

To operate the wiper-activated headlamps, the Twilight Sentinel must be on. If the wiper-activated headlamps are on and the ignition switch is turned to ON, the wiper-activated headlamps will continue. When you turn the key to OFF, the wiper-activated headlamps will immediately turn off. The wiper-activated headlamps will also turn off if you turn off the Twilight Sentinel or the windshield wipers.

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.

A light sensor on top of the instrument panel monitors the exterior light level for the operation of DRL and Twilight Sentinel, so be sure it isn't covered. The DRL system will make your high-beam headlamps come on at a reduced brightness when the following conditions are met:

    • The ignition is on,
    • the exterior lamp control is off, and
    • the transaxle is not in PARK (P).

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

When it's dark enough outside, your regular intensity headlamps will come on at full brightness and the DRL lighting will turn off. The parking lamps that normally come on with your headlamps will also come on. When it's bright enough outside, the regular intensity headlamps and parking lamps will turn back off, and the reduced brightness DRL lighting will turn back on.

To idle your vehicle during the day with the DRL off, shift the transaxle into PARK (P). The DRL will stay off until you shift out of PARK (P).

At night, you can turn off all exterior lamps when you are in PARK (P) by turning the Twilight Sentinel knob all the way to OFF.

If the knob was already in OFF, it must be cycled to ON and back to OFF. Turn the knob clockwise to turn the exterior lighting back on. The lamps will come back on automatically when you put the transaxle in gear.

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

Fog Lamps


Object Number: 807421  Size: B1

The fog lamps button is located below the twilight knob, to the left of the steering wheel on the instrument panel.

An indicator light in the button will glow when the fog lamps are on. Your parking lamps will also come on automatically while the fog lamps are active.

If your fog lamps are on when you use your high beams or flash-to-pass feature, the fog lamps will be disabled while the feature is being used.

Twilight Sentinel®


Object Number: 807125  Size: B2

The Twilight Sentinel® will keep your headlamps on for up to three minutes, to light your way when you leave your vehicle.

To operate the Twilight Sentinel®, turn the DELAY knob located to the left of the steering column on the instrument panel fully clockwise for the three-minute delay. Turn it counterclockwise to reduce the delay. Turn the knob to OFF to turn the Twilight Sentinel® off.

At night, you can turn off all exterior lamps when you are in PARK (P) by turning the Twilight Sentinel® knob all the way to OFF. If the knob was already in OFF, it must be cycled to ON then back to OFF, to turn the exterior lighting off. The lamps will come back on when you turn the knob clockwise.

If the Twilight Sentinel® lighting is active, it can be disabled by turning on the manual parking lamps. This lighting will be disabled until the key is turned from ON or until the manual parking lamps are turned off.

Also, it's possible that your headlamps may go out if you drive from a dark area into a bright area like a lighted parking lot. If this happens, turn on your headlamps with the exterior lamp control.

Exterior Lighting Battery Saver

If the exterior lamp control has been left on, the exterior lamps will turn off approximately 10 minutes after the ignition is turned to OFF and a door has been opened. This protects against draining the battery in case you have accidentally left the headlamps or parking lamps on. If you need to leave the lamps on for more than 10 minutes, use the exterior lamp control to turn the lamps back on after turning the ignition to OFF and opening a door. To delay the lamps from turning off, see "Twilight Sentinel®," listed previously.