2004 Buick Regal Owner's Manual - Page 110

Daytime Running Lamps / Automatic Headlamp System 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. Daytime running lamps are required to function at all times on all vehicles first sold in Canada. A light sensor on top of the instrument panel makes the DRL work, so be sure it is not covered. The DRL system will make the front turn signal lamps come on when the following conditions are met: When it is bright enough outside, the headlamps will go off and the front turn signal lamps will come on. To idle the vehicle with the DRL and automatic headlamp control off, set the parking brake while the ignition is in OFF or LOCK. Then start the vehicle. The DRL, headlamps and parking lamps will stay off until the parking brake is released. To turn off the automatic headlamp feature when it is dark outside, move the exterior lamp control to the parking lamp position. The parking lamps will remain illuminated and the headlamps will turn off. The fog lamps will also go on if they were on previously. As with any vehicle, the regular headlamp system should be turned on when needed. • The ignition is on. • The exterior lamps control is off. • The parking brake is released. While the DRL are on, only the vehicle's front turn signal lamps will also be on. The headlamps, taillamps, sidemarker and other lamps will not be on. The instrument panel will not be lit up either. When it is dark enough outside, the front turn signal lamps will turn off and the vehicle's headlamps and parking lamps will turn on. The other lamps that come on with the headlamps will also come on. Delayed Headlamps Delayed headlamps illumination provides a period of exterior lighting as you leave your vehicle. The feature is activated when the vehicle's headlamps are on due to the automatic headlamp control feature described previously in this section, and when the vehicle's ignition is turned off. The headlamps will then remain on until the exterior lamps control is moved from OFF to the parking lamp position or until a 90 second lighting period has ended. If the ignitionis turned off with the exterior lamps control in the parking lamp or headlamps position, the delayed headlamps illumination cycle will not occur. 3-12