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Foglights On With High Beams

Spurshot
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Spurshot Senior Enthusiast

Spurshot

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Got a 2014 silverado & am about to install some Rigid SR-Q2 LED's into the fog light assembly, this guide plus a set of fabbed connectors will help a bunch to make the install right, thx Spurshot!

Check the wattage of the lights you plan to install. If they are much higher than the OEM bulb rating, you should consider adding a relay circuit.

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Spurshot
Spurshot

2014 SIERRA SLT FOG LIGHTS WITH HIGH BEAM HEADLIGHTS MODIFICATION This mod will let you use the fog lights on low beam same as factory. On and off with the fog light button. When the fog ligh

Spurshot
Spurshot

This was on the Duramax forum. I believe it is for a GMT 900. But the principles are likely applicable to a K2. Use this information cautiously. ------------------------------------------------------

Spurshot
Spurshot

OK, After struggling thru the schematics and online mods of past models all evening, I figured it out. This is for a Sierra and should be the same for the Silverado. It involves pushing one Diode in

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Truckerado Enthusiast

Truckerado

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Check the wattage of the lights you plan to install. If they are much higher than the OEM bulb rating, you should consider adding a relay circuit.

 

SR-Q2 wide are pretty low, I am not 100% sure what watts the OEM bulb are though... but i thought they were 35w

 

SR-Q2 Specifications:

 

  • Watts: 34.5
  • Amp Draw: 2.50
  • LED's: 6
  • Raw Lumens: 3030
  • Lux @ 10m: 178.2
  • Beam Distance: 267.0 m
  • Peak Beam Intensity: 17,824 cd

** Edit - Finished the install, seems to work great. I still need to do your foglight highbeam mod but wifey thinks i spent enough time in the shop for one day :)

Edited by Truckerado
Spurshot Senior Enthusiast

Spurshot

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Stock bulb. is 24 watt. You should be ok. I'm running 33w Rigid DOT lights direct without a relay and have run them for extended time without problems.

BuyAmericanIron Enthusiast

BuyAmericanIron

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ok.. I got it working on my 2016 GMC. Just so there is confusion.. everything is the same as the 2014-2-015. Just the one wire is a sold brown now on the 2016 as mentioned above. But the position ( where to insert the diode) is the exact same as seen on page 1 of this thread.

 

Like GMC-AT, I did this mod on my 2016 Sierra Denali. Went with the 10-18 mod at first. Had fogs with high beams just like spurshot noted on Page 1. But, on the 2016 trucks with Intellibeam, when you turn on fogs, it disables the automatic high beam feature. Damn, this is a really nice option. So with 10-18, you have fogs with high beams and not low beams, IF you want to keep the Intellibeam active. If you don't care about auto high beams, just push the fog light button and you have them on low beam, same as normal.

 

After some thought and research, I switched the diode to the 10-22 location in the brown connector. 22 is the Park Lamp Relay control. In this position, you have fogs with park lamps, low beams and high beams and Intellibeam functions normally. The only thing you are giving up now is that you have fogs on with every light position. You cannot have just your parking lights on. I guess this is OK, because I can't remember the last time I used just the parking lights.

 

Thanks to spurshot and GMC-AT for you input. Now the awesome headlights on the 2016 Sierra produce even more light on the road with the addition of the fogs lamps and Intellibeam functions normally. This is a great mod and highly recommended.

Spurshot Senior Enthusiast

Spurshot

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Like GMC-AT, I did this mod on my 2016 Sierra Denali. Went with the 10-18 mod at first. Had fogs with high beams just like spurshot noted on Page 1. But, on the 2016 trucks with Intellibeam, when you turn on fogs, it disables the automatic high beam feature. Damn, this is a really nice option. So with 10-18, you have fogs with high beams and not low beams, IF you want to keep the Intellibeam active. If you don't care about auto high beams, just push the fog light button and you have them on low beam, same as normal.

 

After some thought and research, I switched the diode to the 10-22 location in the brown connector. 22 is the Park Lamp Relay control. In this position, you have fogs with park lamps, low beams and high beams and Intellibeam functions normally. The only thing you are giving up now is that you have fogs on with every light position. You cannot have just your parking lights on. I guess this is OK, because I can't remember the last time I used just the parking lights.

 

Thanks to spurshot and GMC-AT for you input. Now the awesome headlights on the 2016 Sierra produce even more light on the road with the addition of the fogs lamps and Intellibeam functions normally. This is a great mod and highly recommended.

Now you need to replace the fog light assemblies with some better lights. I'm not a fan of the LED replacement bulbs I've seen. The ones I've seen change the beam to where it glares above the original cutoff. TRS makes a direct replacement assembly for the Sierra now. I have the Rigid DOT/SAE lights.

polarys425 Enthusiast

polarys425

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The only thing you are giving up now is that you have fogs on with every light position. You cannot have just your parking lights on. I guess this is OK, because I can't remember the last time I used just the parking lights.

 

 

 

Add a switch to the mod and that will allow you to "kill" the mod when needed.

BuyAmericanIron Enthusiast

BuyAmericanIron

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Now you need to replace the fog light assemblies with some better lights. I'm not a fan of the LED replacement bulbs I've seen. The ones I've seen change the beam to where it glares above the original cutoff. TRS makes a direct replacement assembly for the Sierra now. I have the Rigid DOT/SAE lights.

 

On a 14/15 truck, I would 100% agree. The OE fog lights are a joke. On the 2016 GMC the OE fog lights are LED and seem to be a pretty good light. They project a narrow beam of light with a sharp flat cutoff line. Not saying they can't be improved on, but they are pretty darn good lights.

Spurshot Senior Enthusiast

Spurshot

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On a 14/15 truck, I would 100% agree. The OE fog lights are a joke. On the 2016 GMC the OE fog lights are LED and seem to be a pretty good light. They project a narrow beam of light with a sharp flat cutoff line. Not saying they can't be improved on, but they are pretty darn good lights.

 

Good to hear they've moved forward away from those old lights designed almost a decade ago.

 

If you're interested in other options for them, the TRS snap in replacement fogs are rated at 2400 lumens and have a wide beam to cover the ditches.

Spurshot Senior Enthusiast

Spurshot

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I was mistaken. The 2016 is a completely different shape.

GMC-AT Senior Enthusiast

GMC-AT

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Nothing about the 2016 LED lights needs to replaced.. headlights and fogs are just plain awesome from the factory.

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Spurshot Senior Enthusiast

Spurshot

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Nothing about the 2016 LED lights needs to replaced.. headlights and fogs are just plain awesome from the factory.

 

That's great to hear.

wrc7732 Enthusiast

wrc7732

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Got to agree with GMC-AT. I don't foresee any headlight/fog light updates on my truck. Lights are impressive!

I sure wish General Motors had considered this update when they released the 2014 trucks. My 2015 Sierra's lights are crap! And I've had the technical service bulletin and performed. They are certainly better, but much less than satisfactory to me.

 

Any idea if the 2016 lights will fit in the headlight and fog light areas on the 2015's?

 

 

Sent from my iPhone using Tapatalk

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