These lights have 2 different "lights" in each of them. This occurs frequently. Change out the bulb and everything will be working fine once again.
Bad bulbs Bad dimmer switch
None
Low beams are burned out.
High and low beams have differant filaments. You have to replace the bulbs.
check your fues
As a guess both low beams are burnt out The daytime running and high beams are the same light filament. Or the fuse or the relay for the low beams.
Your computer brain in your truck is messing up take it to a mechanic is my advice. Not sure I even understand what you are asking,but, If its what I think , its just a matter of turning on your lights. For some reason Chevy thought it would be a good idea to have just your low beams and the high beam dash light come on automatically when it got dark, don't ask me why. If this is not it rephrase you question and be more presice.
It is on the side of the steering wheel and is used for turning your headlights on and off it is also used to control your high beams and low beans
Yes
dimmer switch wore out or you might just have running lights.
i have the same problem.did you find out what it was? maintenance@rescraft.com
hmm as you ask what happened to high beams, i am going to assume that low beam works. id this is correct i would say that your low/high beam switch needs replacing