1999 GMC Sierra 1500 Pickup Owner's Manual - Page 122

Pushtherightside lights. of theswitchwiththe 0 symbolon it to turn off your off switch to adjustinteriorlights.Turningthe Turnthe dial attherightofthe dial all thewayup turns on theinteriorlights. You canswitchyourheadlightsfromhightolowbeambypullingontheturn signal/highbeamlever. A circuitbreakerprotectsyourheadlights. If youhaveanelectricaloverload, off. Haveyourheadlightwiringchecked yourheadlightswillflickeronand right away if this happens. Headlights-On Reminder A buzzerwillsoundwhenyourheadlights are turnedonandyourignition is in Off, LOCK or Acc. Fog Lamps Use your optional fog lamps for better vision in foggy or misty conditions. Your fog lampswilloperatewithyourlowbeamheadlightsorparkinglights to low on, and go off when thehighbeamheadlampsareon.Switching beamheadlightsorparkinglightswillletyouusethefoglampsagain. Thefoglampswitch is ontheinstrumentpanelbelowtheheatingcontrols. it to turn the fog Presstheside of the switch with the fog lamp symbol on lamps on, andtheleftside of theswitch to turnthem off. A lightwillglow in the left side of the switch when they are on. K2294 Remember, foglampsalonewillnotgive Neveruseyourfoglamps off asmuchlight as yourheadlights. in the dark without turning on your headlights. 2-54