Headlights have two filaments; one for low beams and one for high beams. There is a good chance that the low beams are burnt out. This doesn't necessarily mean that the high beams won't work. However, it's not too common for both low beams to burn out at the same time. Of course, it could be a fluke. I would replace the headlights with new ones and then go from there.
Your high beams work but your low beams do not because the switch is broken that switches between high and low beams. Electrical switches wear out.
Bad dimmer switch.
are my low beams supposed be come on also when my high beams are on in my 1994 gmc sierra
check the bulb low bean burns out before high beams
it could be your dimmer switch is getting bad
Check your owners manual.
First check the bulbs, if the bulbs are good I would suspect the high/low beam switch is bad.
fuse, bulbs or switch
are you pushing or pulling. one direction flashes the high beams, the other clicks them on.
Thunderbird High School was created in 1972.
Your headlights are burnt out. Ever see a car coming at you with their high beams on and when they turn them off they only have one or none. Check with the parts store but that would be the easiest problem
Generally speaking, high beams and low beams are two different elements in the headlight bulb, so if one is burned out the other can still work fine. you will need to replace the bulb.