2014 Cadillac ATS Owner Manual - Page 166

6-4 Lighting The DRL system turns on the low-beam headlamps at a reduced brightness. For vehicles with High Intensity Discharge (HID) headlamps, there is a dedicated DRL. The DRL will come on when all of the following conditions are met: . . Flash-to-Pass This feature allows the high-beam headlamps to be used to signal the driver in front of you that you want to pass. Pull and hold the turn signal lever toward you to use this feature. When this is done the following will occur: . Automatic Headlamp System When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically. The ignition is on. The exterior lamp control is in AUTO. The light sensor determines it is daytime. The parking brake is released or the vehicle is not in P (Park). If the headlamps are off or in low-beam mode, the high-beam headlamps will turn on. They will stay on as long as the lever is held there. Release the lever to turn them off. If the headlamps are in high-beam mode, they will go to low beam. . . . The taillamps, sidemarker lamps, instrument panel lights, and other lamps will not be on. The DRL turn off when the headlamps are turned to O or the ignition is 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. Daytime Running Lamps (DRL) DRL can make it easier for others to see the front of your vehicle during the day. Fully functional DRL are required on all vehicles first sold in Canada.