1999 Pontiac Firebird Owner's Manual - Page 107

yellowblue For Canadian vehicles, when it's dark enough outside, your front turn signal lamps will go out and your headlamps will come on. The other lamps that come on with your headlamps will also come on. When it's bright enough outside, the regular lamps will go off, and your front turn signal lamps will come on. On a non-Canadian vehicle, the headlamps have to be turned on manually when you need them. On Canadian and non-Canadian vehicles, when the headlamps are turned on, the front turn signal lamps will go out. When you use your turn signals, the front turn signal lamp and the taillamp on the desired side will flash. As with any vehicle, you should turn on the regular headlamp system when you need it. Your fog lamp switch is located on your console. To turn the fog lamps on, push the right side of the fog lamp switch and a light on the switch will come on indicating that the fog lamps are on. Push the left side of the fog lamp switch to turn the fog lamps off. The fog lamps will go off whenever your high-beam headlamps come on. When the high-beam headlamps go off, the fog lamps will come on again. If your vehicle is equipped with the Content Theft-Deterrent System and your fog lamp switch is on, the fog lamps may flash to indicate operation of the Content Theft-Deterrent System. See "Content Theft-Deterrent System" in the Index. Fog Lamps Use your fog lamps for better vision in foggy or misty conditions. Your parking lamps must be on or your fog lamps won't work. 2-51