1998 Pontiac Grand Prix Owner's Manual - Page 116

Daytime Running Lamps 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. To idle your vehicle with DRL off, set the parking the brake while the ignition in OFF or LOCK. Thenstart is your vehicle.The DRL will stay until you release the off parking brake. As with any vehicle, you should turn the regular on headlamp system when you need it. A light sensor on top the instrument panel makes the Fog Lamps of DRL work, so be sureit isn't covered. The DRL system will make your low-beam headlamps come on at a reduced brightness when: 0 The ignition is on, The headlamp switch is off and 0 The parking brake is released. When the DRL are on, only your low-beam headlamps will be on. The taillamps, sidemarker and other lamps won't be on. Your instrument panel won't be lit up either. When it's dark enough outside, your headlamps will change to full brightness. other lamps that come The on with your headlamps will also come on. The fog lamps switchis located in the upper, left comer the When it's bright enough outside, regular lampswill of the instrument panel, to left of the instrument the go out, and your low-beam headlamps change the to panel cluster. reduced brightnessof DRL.