just because. how is a rainbow made, why is the grass green we don't know it just is
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.
The switch assembly is probably worn out and malfunctioning.
Should be like any other vehicle. (pull turn signal stick back (high beams on), pull it back again (high beams off).
Bad bulbs Bad dimmer switch
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.
are my low beams supposed be come on also when my high beams are on in my 1994 gmc sierra
None
yes,4 separate bulbs,2high beam-2 low beam
It's possible that when you turn your blinker on you are inadvertently pushing the lever forward causing your high beams to come on and stay on.
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.
pull or push the turn signal lever.
Fuse or dimmer switch is the only answer i can think of if lights come on but just won't go from high to low or visa versa