My 2002 gmc Sierra's low beams will not work but my drl high beams and fogs work fine....

Check your headlamp switch.is your switch on the dash or part of the turn signal switch.gm have a thing with plastic switches and metal contacts these switchs have a tendency to melt..also check for grounds.was the vehicle in a accident involving the front end.if you changed your headlamps to 80/100 watts bulbs.the circuit breaker may not work hence the switch melts.

What is wrong when the low beam headlights won't come on in a 2002 gmc sierra but all the other lights work