2011 Buick Lucern Owner's Manual - Page 167

Wiper Activated Headlamps This feature activates the headlamps and parking lamps after the windshield wipers are turned on and have completed eight wipe cycles within four minutes. When the ignition is turned to LOCK/OFF, the wiper-activated headlamps immediately turn off. The wiper-activated headlamps also turn off if the windshield wipers are turned off. The DRL system makes the low-beam headlamps turn on at reduced brightness in daylight when the following conditions are met: . . The engine is running. The exterior lamp button for the headlamps is off. When the DRL are on, only the low-beam headlamps will be on. The parking lamps, taillamps, sidemarker and other lamps will not be on. When it is dark enough outside, the low-beam headlamps will come on. The other lamps that turn on with the headlamps will also turn on. When it is bright enough outside, the regular lamps will go off, and the low-beam headlamps change to the reduced brightness of DRL. To turn off all exterior lighting at night when the vehicle is parked, turn the exterior lamp control to the off position. See Exterior Lamps on page 4 ‑ 10 for more information. The regular headlamp system should be turned on when needed. Headlamps on Reminder If you leave the exterior lamp buttons for the headlamps or parking lamps on, remove the key from the ignition and open the driver's door, you will hear a continuous warning chime. The chime will turn off when the lamps are turned off. Daytime Running Lamps (DRL) Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. 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, so be sure it is not covered. 4-11