1999 Chevrolet Corvette Owner's Manual - Page 103
1999 Chevrolet Corvette Manual
Page 103 highlights
yellowblue Exterior Lamps Daytime Running Lamps / Automatic Headlamp Control (Optional) Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpful in the short periods after dawn and before sunset. A light sensor on top of the instrument panel makes the Automatic Headlamp Control (if equipped) work, so be sure it isn't covered. The DRL/Automatic Headlamp Control system will make the front turn signal lamps come on when: When it's dark enough outside, the front turn signal lamps will turn off and the headlamps and parking lamps will turn on. The other lamps that come on with the headlamps will also come on. When it's bright enough outside, the headlamps will go off and the front turn signal lamps will come on. To idle the vehicle with the DRL off, set the parking brake while the ignition is in OFF or LOCK. Then start the vehicle. The DRL, headlamps and parking lamps will stay off until you release the parking brake. The Automatic Headlamp Control feature can be turned on or off except for vehicles first sold in Canada. See "Driver Information Center (DIC)" in the Index to turn this feature on or off (if equipped with the Automatic Headlamp Control feature). As with any vehicle, you should turn on the regular headlamp system when you need it. D the ignition is on, D the headlamp switch is off and D the parking brake is released. When the DRL are on, only the front turn signal lamps will be on. The headlamps, taillamps, sidemarker and other lamps won't be on. Your instrument panel won't be lit up either. 2-51