They are daytime running lights. They are always on so people can always see you. Its a safety thing. Newer trucks have specific daytime running lights.
daytime running light module under drivers side dash
If emergency brake is on 1 click it turns daytime running lights off. Pull out on emergency brake handle and see if this fixes the problem.
NO , Not from the factory.
I have a 1999 chevy Silverado how to fix my day time running lights
The daytime running lights are connected to the bright lights. It just reduces the power for the daytime runners.
The whole headlight on these 03 silverado is not that hard to take it out. When you pop the hood open as you look on the headlight there should a long piece of tube metal that is holding the headlight onto your car. As I recall there shouldn't be any screws or bolts holding the headlights. That is for headlights, not "Daytime Running Lights". Still looking for answer!
Just remove the DRL fuse in the fuse box, If your wanting to turn lights off while driving.
DRL = daytime running lights