I have a 2003 Yukon and looked at how to replace the daytime running lamps for about 6 months until I found that the rubber sheet behind the lamp socket had a slit in it. you just have to find this slit from the engin compartment / cooling shroud area and reach through to the socket. Good luck I hope this hasn't worried you for as long as it did me.
Jack
Yukon daylight running the light relay switch can be located in the fuse box. The location of the fuse can be found on the inside cover of the fuse box.
2003 GMC Yukon daytime running light (DRL) bulb replacement: Purchase the correct replacement daytime running light (DRL) bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the daytime running light (DRL) bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
It may not have daytime running lights.
where is the daytime running light relay located on a 2002 chevy cavalier
Daytime running light. Usually mean the daytime running lights have a problem
don't believe they had daytime running lights in 1991 topaz
A ( Daytime Running Light ) module
The daytime running light module on a 2005 F-350 is located underneath the hood. The module will be in the relay box.
This car does not have daytime running lights.
Remove the thumbscrews which attach the headlight and turn / running lights. Both have to be removed to access the daytime running light bulb.Type your answer here...
The daytime run lamps are your high beam bulbs with a module that cuts the amount of amperage that just dims the bulbs. Just change high beam bulb.
Check your owners manual for the location of your daytime running light module. The manual should have a diagram with its exact location.