2013 Chevrolet Volt Owner Manual - Page 173

Lighting 6-3 Automatic Headlamp System When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically. 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 O or the ignition is off. Hazard Warning Flashers Lights On with Wipers If the windshield wipers are activated in daylight with the engine on, and the exterior lamp control is in AUTO, the headlamps, parking lamps, and other exterior lamps come on. The transition time for the lamps coming on varies based on wiper speed. When the wipers are not operating, these lamps turn off. Move the exterior lamp control to P or ; to disable this feature. | (Hazard Warning Flasher): Press this button to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. Press | again to turn the flashers off. There is a light sensor on top of the instrument panel. Do not cover the sensor, otherwise the headlamps will come on when they are not needed.