Disabling Daytime Running Lights (DRL)

morrislee · March 3, 2016

Return spring removal DOES NOT remove DRL at all, you can test this out by going in front of a shop and see your reflections off the glass doors, holding the switch at the off position doesnt do anything unless you are un park.....

Matt DiMarco · March 4, 2016

Return spring removal DOES NOT remove DRL at all, you can test this out by going in front of a shop and see your reflections off the glass doors, holding the switch at the off position doesnt do anything unless you are un park.....

You must have a Canadian truck. On US trucks the lights can be turned off while in drive. Im in Canada as well, I swapped the low beam wire with the parking lamp wire so the orange lights are on in daylight and the low beams still turn on automatically when it gets dark.

Edited March 4, 2016 by mattblackout

morrislee · March 4, 2016

You must have a Canadian truck. On US trucks the lights can be turned off while in drive. Im in Canada as well, I swapped the low beam wire with the parking lamp wire so the orange lights are on in daylight and the low beams still turn on automatically when it gets dark.

Thats too bad, I wish I can turn it on and off on demand

Matt DiMarco · March 5, 2016

Thats too bad, I wish I can turn it on and off on demand

But you have a Sierra. Your DRL is the LED strip. Thats not that bad. My Silverado uses the low beams for DRL so I had to change that. If you dont want the LED on during the day just wire them to the upper LED which is only on at night, or you could use the parking lamp wire or the headlight wire. You could also tie into your blinker signal so your LED flashes with with turn signals.

Donolie · April 30, 2016

You must have a Canadian truck. On US trucks the lights can be turned off while in drive. Im in Canada as well, I swapped the low beam wire with the parking lamp wire so the orange lights are on in daylight and the low beams still turn on automatically when it gets dark.

So I did this to my truck today. I'm in the Detroit area but the truck, a 2014 silverado was first owned in Canada so out of park turning off the DRL was impossible. After the switch when in drive, the parking lamps come on in drive with the headlight switch in the auto mode, in the parking lamp mode the headlights and parking lamps come on, with the switch turned to low beam headlight, everything is on and the parking lamps get a tad bit brighter similar to how the DRL are dimmer to regular headlight. I bought a Lisle 14900 terminal tool to get the wires out. Even with the tool this was a pain and the hardest part of the job. I had to use the smallest piece of the tool and on the last wire it bent. I was able to finish the job but besides getting the wire out, clearing the factory loom tape back was the second hardest part. Thanks for the help Matt

-Don

http://www.amazon.com/Lisle-14900-Wire-Terminal-Trouble/dp/B0002STTQG

Edited April 30, 2016 by Donolie

Tomciopalec · June 29, 2016

Thought I would share what I did. I know it isnt what others are trying to achieve, however some people may be interested. I have a GMC with the LED daytime running lights. I wanted to be able to run just the LED strip with my fog lights. However on Canadian trucks it would turn on the automatic headlights. So to get rid of the automatic headlights, I removed the upper dash piece where you see the sensor. I unglugged the harness from the sensor bulb and added a resistor. This in turn disabled my automatic headlights allowing me to run the LED strip and fog lights whenever I want-Even at night if i disire.

I have no desire to disable the daytime running lights since I have the LED strip. Just wanted to get rid of the automatic headlights.

Can you share which pins you used and the resistor size.

I put 150 ohm from the single pin to the second one after the gap. It did nothing.

Rkaroll953 · June 29, 2016

You must have a Canadian truck. On US trucks the lights can be turned off while in drive. Im in Canada as well, I swapped the low beam wire with the parking lamp wire so the orange lights are on in daylight and the low beams still turn on automatically when it gets dark.

matt did you just cut the wire and splice into an orange wire that simple? the low beam wire is pin G i belive?

Matt DiMarco · June 29, 2016

matt did you just cut the wire and splice into an orange wire that simple? the low beam wire is pin G i belive?

I did not cut any wires, I just found the main headlight assembly connector and I removed the low beam supply wire and the prking lamp supply wire and swapped their locations in the conncetor. I forget which pins they are but you will find the answer in another post I made on previous pages. I would still use a test light so you can be 100% sure.

Matt DiMarco · June 29, 2016

matt did you just cut the wire and splice into an orange wire that simple? the low beam wire is pin G i belive?

Keep in mind, this is only for 2014 and 2015 silverados. This is so the low beams are off during the day and the orange lights are on, in the "Auto" position. The auto night lights will still function normally. When you look into the headlight connector (truck side) you will see 8 slots inside arranged like so. DCBA

............HGFE four on the top and four on the bottom.

Slots D, H and G are blanks on my truck meaning there are no wires going to thos slots. You will be swapping the B wire and the E wire. The pins slide in and out of the connector you just need to take off the grey cover then use a pointy tool. No cutting or splicing wires or adding relays or more wires. If you take your truck to a dealership there is no way for them to tell that any changes or modifications have been made.

Edited June 29, 2016 by mattblackout

XMR15 · June 29, 2016

Can you share which pins you used and the resistor size.

I put 150 ohm from the single pin to the second one after the gap. It did nothing.

I will have to check what resistor I used. I cant remember right off the top of my head. As for the pins. You have to go diagonal of each other.

When I check to see what resistor I have. I'll snap a picture for you showing the pins.

Matt DiMarco · June 29, 2016

Can you share which pins you used and the resistor size.

I put 150 ohm from the single pin to the second one after the gap. It did nothing.

A 1000 ohm resistor works to trick the light sensor. Only problem is your truck thinks its always daylight so your interior dash lights and radio/nav screen with stay bright as f*** (day mode) all night with no dim ability. Also, the green backlighting around the hvac controls does not come on in daytime mode.

Edited June 29, 2016 by mattblackout

XMR15 · June 29, 2016

The screen does stay bright. I solved that by placing a tinted privacy screen on my touch screen.

The dash lights you can control with your brightness knob.

The backlighting will come on when you turn your fogs on. I always run my fogs so my back-lit is always on.

Rkaroll953 · June 29, 2016

Keep in mind, this is only for 2014 and 2015 silverados. This is so the low beams are off during the day and the orange lights are on, in the "Auto" position. The auto night lights will still function normally. When you look into the headlight connector (truck side) you will see 8 slots inside arranged like so. DCBA
............HGFE four on the top and four on the bottom.
Slots D, H and G are blanks on my truck meaning there are no wires going to thos slots. You will be swapping the B wire and the E wire. The pins slide in and out of the connector you just need to take off the grey cover then use a pointy tool. No cutting or splicing wires or adding relays or more wires. If you take your truck to a dealership there is no way for them to tell that any changes or modifications have been made.

Thanks il have to play with it. Idealy id like to just pull the Drl Pin out and have nothing during the day. but now in the parking light position you have Drl low beam on and taillights correct?

Matt DiMarco · June 29, 2016

Thanks il have to play with it. Idealy id like to just pull the Drl Pin out and have nothing during the day. but now in the parking light position you have Drl low beam on and taillights correct?

I think all of us would love to pull the drl pin but unfortunately its also the low beam wire.

If I turn my switch to the parking lamp position while driving in daylight it would turn my low beam on because the prking lamps are already on since they are being supplied by drl/low beam wire.

Tomciopalec · June 30, 2016

The screen does stay bright. I solved that by placing a tinted privacy screen on my touch screen.

The dash lights you can control with your brightness knob.

The backlighting will come on when you turn your fogs on. I always run my fogs so my back-lit is always on.

Thanks for the info, I know about getting stuck in the day mode for the dash. I plan to add a switch for the radio touch screen to keep it off. But one step at a time. First getting auto lights OFF.