GMC Terrain: Automatic Headlamp System - Exterior Lighting - Lighting - GMC Terrain Owner's ManualGMC Terrain: Automatic Headlamp System

When it is dark enough outside, the headlamps come on automatically.

Do not cover the light sensor on top of the instrument panel or the headlamps

Do not cover the light sensor on top of the instrument panel or 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.

    Daytime Running Lamps (DRL)
    Daytime Running Lamps (DRL) system makes the low-beam headlamps come on at a reduced brightness in daylight when the following conditions are met: ○ The ignition is on. ○ The exterior ...

    Hazard Warning Flashers
    (Hazard Warning Flasher): Press this button, on the center of the instrument panel, to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. ...

    See also:

    Getting started
    Voice control button on the steering wheel ...

    Photosensors
    Photosensors The mirror has a photosensor attached on both the front and back sides. If the glare from the headlights of vehicles behind you strikes the mirror, these sensors detect it an ...

    Driving on Snow or Ice
    Drive carefully when there is snow or ice between the tires and the road, creating less traction or grip. Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting in ev ...