Bad bulbs they are double filamented perhaps one filament burned
out
Bad switch
Bad Low beam relay
The headlights are on two different fuses. The high beams are on one fuse and the low beams are on another fuse. The fuse for the low beams may need to be changed.
The headlights are on two different fuses. The high beams are on one fuse and the low beams are on another fuse. The fuse for the low beams may need to be changed.
Well, assuming that you are talking about headlights, the low beams are the dimmest settings for the drive headlights, while high beams are the brightest setting.
Your headlights turn off when you turn the high beams on because you have a defective switch. You need to have a mechanic replace the high beams switch. It is a simple replacement.
one or more headlights don't work but others do.none of the headlights will work.high beams work but low beams don't and vice versa.lights flicker and sometimes go dim.
Answer: on the turning signal switch turn the handle forward for headlights. high beams pull in to flash. push out for high beams to stay on.
The switch is broken. You need to replace it.
high beams may be blown
are my low beams supposed be come on also when my high beams are on in my 1994 gmc sierra
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.
on what vehicle?
Because the lights are so bright