Buick LaCrosse: Automatic Headlamp System - Exterior Lighting - Lighting - Buick LaCrosse Owners ManualBuick LaCrosse: Automatic Headlamp System

When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically.

There is a light sensor located on

There is a light sensor located on top of the instrument panel. Do not cover the sensor; otherwise the headlamps will come on when they are not needed.

The system may also turn on the headlamps when driving through a parking garage or tunnel.

When it is bright enough outside, the headlamps will turn off or may change to Daytime Running Lamps (DRL).

The automatic headlamp system turns off when the exterior lamp control is turned to ignition or the ignition is 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 Ca ...

    Adaptive Forward Lighting (AFL)
    The Adaptive Forward Lighting System (AFL) pivots the headlamps horizontally to provide greater road illumination while turning. To enable AFL, set the exterior lamp switch to the AUTO posit ...

    See also:

    Immobilizer
    See Radio Frequency Statement  for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310. ...

    Cooling System
    WARNING! • When working near the radiator cooling fan, disconnect the fan motor lead or turn the ignition switch to the LOCK position. The fan is temperature controlled and can start at anyti ...

    From outside the vehicle
    The remote key locks and unlocks all of the doors and the trunk. Before the vehicle can be locked from the outside with the remote key, the driver's door must be closed. Any other door/trunk th ...