1998 GMC Safari Owner's Manual - Page 121

Exterior Lamps Rotate the knob toward the rightthe master lighting to symbol to turn on all lamps listedas well as the the headlamps. Rotate the knob toward the leftOFF to turn off to your lamps. Rotate the dial next the knob up to adjust your to instrument panel lights. Rotate dial up to the the first notch for full intensity. If you rotate dial to the the second notch, your interior lamps will come on. I Rotate the dial next to the lamp switch downto dim your instrument panel lights. Headlamps You can switch your headlamps from high low beam to by pulling the multifunction lever toward you. Your lamp switch is the driver's side of the on instrument panel. Rotate the knob toward the right the parking lamp to symbol to turn on the following: ParkingLamps Taillamps License Plate Lamps Instrument Panel Lights A circuit breaker protects your headlamps. you have If an electrical overload, your headlamps will flicker on and off. Have your headlamp wiring checked right away if this happens. Headlamps On Reminder A reminder tone will sound when your headlamps or parking lamps are turned on and your ignitionin the is OFF,LOCK or ACCESSORY position.To turn the tone off, turn the switch to OFF.