ok ive got a 99 gmc and ive figured out how to get the auto headlights to turn off to just the manual control now all i need is to get the DRLs to turn off. On the 99s you cant just push the dome override a couple times as i have found out. I have also looked for a fuse specific to the DRLs and i cant seem to find one. although i didnt look that long i might have missed it. has anyone done something else to get their DLRs to go out. what would happen if i just pulled the bulbs?

nothin.. just pull them... their is a fuse for them if it will make you feel better

According to a few websites I just read. There should be a fuse somewhere in your truck for it. I haven't checked mine yet but, like Nigel says you could just pull the bulbs out of your lamps or just clip one wire that goes to each bulb???

Go to the electrical box under your hood and pull the DRL relay out, that simple

Go to the electrical box under your hood and pull the DRL relay out, that simple

I concur.

That's what I did.