The high low beam switch is bad or the hot wire to the high beam is damaged or broken
Low beams - 9006 bulbs or HB4 bulbs High beams - 9005 bulbs or HB3 bulbs
try checking ur high-bea fuses and relays
try new light bulbs
the wirehas been eaten by rates of mouse
Fuse or bulbs burned out. On most they are separate bulbs or high beam filament is broken if 2 in 1 bulbs.
First check the bulbs, if the bulbs are good I would suspect the high/low beam switch is bad.
high beams and low beams are on different filaments, and sometimes different bulbs completely. find locations of your head lights (autozone.com may be able to help) and pull it out and look at it. if there is any break in the filament, replace the bulb, if it is good, start checking fuses and such. usually it will just be the bulbs gone out, unless both went out at same time which would mean you blew a fuse.
change your bulbs and see if that's it.
fuse, bulbs or switch
Bad bulbs or multifunction switch
Bad bulbs? Bad dimmer switch?
Bad bulbs Bad dimmer switch