2014 Cadillac CTS Owner Manual - Page 176

6-4 Lighting The dedicated 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: . 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). There may be a light sensor on top of the instrument panel or on the windshield near the rearview mirror, if equipped. 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). . . 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, 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. . 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. Automatic Headlamp System When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically.