Look in the fuse box for a fuse marked DT lights
No.
headlights
Yes
NO , Not from the factory.
The daytime running lights are connected to the bright lights. It just reduces the power for the daytime runners.
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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.
DRL = daytime running lights
yes
yes , by removing DRL
When daytime running lights do not work, it means the bulbs may have burned out. It could also mean the fuses have failed or there is a short in the wiring.
Lift up on the E-brake until the first click. This works for any vehicle (Chevy at least) with daytime running lights.