2004 Cadillac CTS-V Owner's Manual - Page 143

If it's dark enough outside and the exterior lamp control is off, a Headlamps Suggested message will appear on the Driver's Information Center (DIC) display. This message informs the driver that turning on the exterior lamps is recommended even though the DRL are still illuminated. Turning the exterior lamp control to AUTO or to the low-beam headlamp position will turn off the DRL and cancel the Headlamps Suggested message. If the parking lamps or the fog lamps were turned on instead, the DRL will still turn off and the Headlamps Suggested message will be displayed. You can turn it off by pressing the OK button if you have the Navigation audio system or the CLR button if you have the Base audio system. To operate your vehicle with the DRL off, turn the exterior lamp control off. Then turn on the fog lamps or parking lamps, and the DRL will turn off. The Headlamps Suggested message will appear on the DIC display. This will work regardless of gear position and whether or not the parking brake is set. As with any vehicle, you should turn on the regular headlamp system when you need it. Light Sensor The light sensor for the DRL and AUTO headlamp feature is located on top of the instrument panel. If you cover the sensor, it will read dark, and the exterior lamps or the Headlamps Suggested message will appear on the DIC whenever the ignition is on. 3-21