any way to manually turn lights off?

~Z-71~ · October 5, 2005

i was just wondering if there was any way to turn the lights off at night on a '99 GMC Sierra

Nick99Chevy · October 5, 2005

Try dis:

http://www.fullsizechevy.com/forums/showthread.php?t=114544

99-2door · October 5, 2005

Not on a 99, only works on 2000-up.

99silveradoz71 · October 6, 2005

starting the truck with the parking brake on will keep them from coming on, but obviously if you take the brake off, on they come. Some have found a way to keep the brake on just barely though.

DEV1ST8R · October 6, 2005

Put a resistor in the place of the ambient light sensor. Your DRL will be on at all times, but you'll have control over your headlights. . .like you should!

chuck16 · October 6, 2005

Just do what I did and do this.

http://files.automotiveforums.com/gallery/...&cat=500&page=1

This allows you to switch between Automatic and Manual Control.

PS -- this still doesn't stop your DRL's from working. Haven't found a fix for that yet. I don't mind the DRL's though.

Dans Denali · October 6, 2005

I think the owners manual says to push the dome override switch in and out twice to cancel them.

Dan

Nick99Chevy · October 6, 2005

I think the owners manual says to push the dome override switch in and out twice to cancel them.

Dan

<{POST_SNAPBACK}>

Not in 99's.

mcreyaufmiller · October 6, 2005

you could always pull the fuse, seems to work on the ABS system.

~Z-71~ · October 7, 2005

thanks

99-2door · October 10, 2005

Just do what I did and do this.

http://files.automotiveforums.com/gallery/...&cat=500&page=1

This allows you to switch between Automatic and Manual Control.

PS -- this still doesn't stop your DRL's from working. Haven't found a fix for that yet. I don't mind the DRL's though.

<{POST_SNAPBACK}>

You could also put a relay and switch in that circuit and have it to where you could switch between auto and manual with the flick of a switch.

sonjaab · October 10, 2005

Go to http://www.lightsout.org

Or go to here for instructions on a simple resistor trick to disable the

auto ons http://www.fullsizechevy.com/fscu/shawn.shtml

chuck16 · October 10, 2005

Go to http://www.lightsout.org

Or go to here for instructions on a simple resistor trick to disable the

auto ons http://www.fullsizechevy.com/fscu/shawn.shtml

<{POST_SNAPBACK}>

That's essentially the same as this:

http://files.automotiveforums.com/gallery/...&cat=500&page=1

Just far more detailed and very descriptive.

Good find

Nick99Chevy · October 10, 2005

You could also put a relay and switch in that circuit and have it to where you could switch between auto and manual with the flick of a switch.

<{POST_SNAPBACK}>

Did that to my '99. It's the best way to go.

Z71Adrenaline · October 11, 2005

There is a window between the 99 and 2000 models that neither method works. We had an early 2000 model that was made in 99 and you could not turn the lights off with the Dome Override switch or the parking break. I didn't mind it too much, but my dad sure did.