Disable automatic headlights and daytime running lights

[Lidd]

Yep, I'm wondering if this switch mod would work for us or if they they would need to be disabled in the programming.

 

 

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[Lidd]

Yep, I'm wondering if this switch mod would work for us or if they they would need to be disabled in the programming.

 

 

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[Lidd]

Try it out by holding the switch over in the off position and start up vehicle and put in drive all while holding the switch off. I'm curious.

[Black Denali Canada]

Nope, DRL's are on no matter what, waiting on my GM dealer OBD programmer system I ordered to get here so I can see what settings we can play with lol

 

Edit: Nope, just tested it! DRl's ........ etc

 

 

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Edited March 5, 2017 by Black Denali Canada

[Coby7]

I have the GM TechII and you can't disable the DRLs, why would you want to anyway it's one of the best safety features ever put on a vehicle.

[Black Denali Canada]

I don't want to, they look good !! Just going to poke around and see what's in there ;)

 

 

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[sk]

DRLs are mandatory here in Canada.

 

I have a US-issued 2015 Silverado LT. I have not done anything to the factory switch. If I turn it to "OFF" then let it spring back to the AUTO position my DRL's turn off. I have done it while in Drive and know it works that way (while sitting in traffic with my foot on the brakes I can see my lights go off in the reflection in the car in front of me). They stay off until I spring the knob to the left again to re-enable auto lights or until I shut off and restart the truck (which re-enables them too).

Edited March 7, 2017 by sk

[Coby7]

Auto lights and DRLs are two different things.

[Slugworth]

Auto lights and DRLs are two different things.

Why would auto lights be on in the daytime??

[Coby7]

If it was dark when you last used your truck they will be on when you start it even if it's daylight. There's a hysteresis timer and it takes a couple of minutes to switch. This is so they don't turn on and off when you hit a shadow area like an overpass.

[Lidd]

That's the way mine was as well sk. I didn't like having to turn my lights off EVERY time I used my truck instead of just having to turn my lights on at night.

[Coby7]

Not sure if you're a guy or girl but I guess you're not a very patient person then if you can't wait 1 minute for the ambient light sensor circuit to shut them off for you. Personally I find it works perfect the way it is. Meet to many non GM cars at dusk or later with no lights on. Daaaaaangerousssss in my opinion. Please don't take this personally I'm just observing here and just don't understand your need to pull out this spring in the switch. Let a sleeping lion sleep. I pray to GOD you don't hit a biker this summer because he didn't see your lights.

Edited March 9, 2017 by Coby7

[sk]

Auto lights and DRLs are two different things.

 

I know that.

 

What I am telling you is that on the 2014/2015 Silverados the upper headlight (low beam) is used as the DRL during the day. If you turn the dash switch to the left it disables ALL the lights (DRL, parking lamps, and auto-headlights) and you can drive without any lights on. So it DOES disable the DRL's but it only does it until the truck is shut off and restarted. At that point the DRL circuit automatically re-energizes until you turn the switch again.

 

Again this is for a US truck. I don't know if the Canadian DOT laws work the same way.

[Lidd]

Exactly right sk. Coby, read sk's post. This isn't only about the auto headlights it's also about the drl's. Every time I drove my truck in the daytime the lights were on full time. Nice sleeping lion quote. Here's one for you: If it ain't broke don't fix it, - Gm full time headlights are worthless except to get you to replace them more often. I'm not sure how I eeked through my first 50 years of driving without headlights in the daytime for safety. Lol

Edited March 15, 2017 by Lidd

[Coby7]

I'm not sure how I eeked through my first 50 years of driving without headlights in the daytime for safety. Lol

Luck!