1993 Buick Regal Owner's Manual - Page 94

Headlight "On" Warning If the light switch is left on you'll hear a warning tone when you turn the ignition off and open the driver's door. Daytime Running Lights (Canada Only) The Canadian Federal Government has decided that "Daytime Running Lights" (DRL) are a useful feature, in that DRL can make your vehicle more visible to pedestrians and other drivers during daylight hours. DRL are required on new vehicles sold in Canada. Your DRL work with a light sensor on top of the instrument panel. Don't cover it up. The low beam headlights will come on at reduced brightness in daylight when: 0 Fog Eights (GS Only Option) If you have the fog light feature, the control is on the instrument. The parking lights must be on, for the fog lights to work. The fog lights will turn off when you switch to high beam headlights. When you switch back to low beam headlights they will turn back on. The ignition is on The headlight switch is off, and The parking brake is released. At dusk, the exterior lights will come on automatically and the low beams will change to.full brightness. At dawn, the exterior lights will go out and the low beams will change to the reduced brightness of DRL (if the headlight switch is off>.Of course, you may still turn on the headlights any time you need to. To idle your vehicle with the DRL off. set the parking brake while the ignition is in the "Off" or "l,ock" position. Then start the vehicle. The DRL will stay off until you release the parking brake. 92