Jump to content

OEM Off-Road Light Switch Install

TinkeringFox

By TinkeringFox
in Modifications & Accessories

 Share

Recommended Posts

Jon S. Enthusiast

Jon S.

Posted
Posted
Hi I did the offroad switch in my 2015 gmc sierra slt gas, im not getting power out of the yellow wire coming from switch to relay, what do i need to check for thanks
Were you able to solve your issue? I appear to be having the same issue with mine.
Light works connected directly to battery and through relay but the gm replacement switch will not turn it on.

Sent from my Pixel 5 using Tapatalk

  • Replies 473
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

TinkeringFox
TinkeringFox

Have you seen the Michael J Fox Edition Sierra/Silverado rolling down the road? Looks like the Toyota from Back to the Future. Anyway there is a really cool headlight switch with the option for Off-Ro

pgamboa
pgamboa

For you guys with 2014/2015 or anyone else that this doesn’t work for (due to BCMs not being programmed to output these triggers), please be patient with us. We have an alternate method that allows

pgamboa
pgamboa

Ok folks, for anyone wanting this headlight switch harness, I have them ready made, and ready to ship.   $35 shipped anywhere in the US.   They are built with the same specs as shown in the vide

Posted Images

asull79 Enthusiast

asull79

Posted
Posted
1 hour ago, pewterliftedz said:

I’ve got a blue backlight version for sale if anyone is interested $100 shipped obo 

A979F2CB-D368-4BB1-BB8C-DBFB80E67D17.jpeg

8532063B-A4D2-4D2F-8003-C5A77E26A9EC.jpeg

I will take it, send me pm with your preferred payment method, I do have PayPal.  Thanks

  • 2 weeks later...
JonnyB Enthusiast

JonnyB

Posted
Posted

Question for those who have successfully installed:

 

When your headlights and foglights are on and you go to turn on the light bar via the switch...do the foglights turn off or will they remain on with the lightbar?

  • Like 1
  • 3 weeks later...
  • 2 months later...
  • 2 weeks later...
superdave160 Enthusiast

superdave160

Posted
Posted (edited)

I just completed adding factory fog lights and an off-road light bar to my 2017 Silverado WT.  I installed the light switch with the fog and off-road light buttons and added the fog light wires between the switch and the BCM that were not installed from the factory.  I also installed the wires from the switch to the BCM for the off-road light. 

 

I chose a bumper mount light bar.  It came with a harness with a relay and switch.  I cut off the switch and rewired the harness to connect to the BCM.  When wired up, the off-road light indicator displayed on my Denali cluster when the light was on.

 

My 2017 Silverado WT came with a black bumper without fog lights.  I installed a chrome bumper with the factory fog lights.  The light harness was still on the bumper, but the Silverado did not have the connector that mates to it.  I purchased an off-road light bar wire harness (again with a relay and a switch) and cut off the switch and rewired it to work with the fog lights and connect to the BCM.  However, the fog lights did not come on when the switch was pressed.  I learned that the fog light feature had to be enabled on a Silverado that did not come with factory fog lights.  White Auto and Media Services (WAMS) has a service that allows you to enable/disable features in your BCM.  I purchased the service and was able to enable the fog lights.

 

The fog and off-road lights now can be turned on and off independently (assuming it is dark enough) and their associated indicators display on the Denali cluster.

 

I want to thank TinkeringFox, the Harness Dr. and WAMS for their assistance in completing this upgrade.

 

Picture1.jpg

Picture2.png

Picture4.jpg

Edited by superdave160
  • Like 1
superdave160 Enthusiast

superdave160

Posted
Posted
On 1/13/2021 at 1:45 PM, JonnyB said:

Question for those who have successfully installed:

 

When your headlights and foglights are on and you go to turn on the light bar via the switch...do the foglights turn off or will they remain on with the lightbar?

The lights are independent of each other.  You can have either on or both at the same time when the light detector on the dash has determined that it is dark outside.  When wired into the BCM, the off-road light won't come on during the day OR until the fog lights are on.

  • 3 months later...
giovannifh Enthusiast

giovannifh

Posted
Posted

First i want to open with a THANK YOU to @TinkeringFox and @pgamboa for all your help on this. 

 

OK so i have a 2017 1500 Denali and i have been wanting to get rid of the 12V chargers up from (what am i going to do with 3 of them plus 1 in back seat???)

 

so instead of paying 100 bucks or so for the OEM switch i got a 22mm momentary switch for 8 bucks and installed it instead of one of the cigarette lighters up front. 

I then used the harness from @pgamboa but hooked it up to the switch instead of the OEM headlight switch. 

image.thumb.png.cd185de43f81f369e067de71b74bce66.png

i used the ground wire from the 12V charger, spliced it to the neg of the indicator LED and the common leads. 

the N.O. lead (switch output) wired to X5:5 of the BCM (Gray wire) and from the BCM (X1:12) back to pos LED indicator lead on the switch and spliced as trigger wire to the light bar relay. 

 

now i just need to decide which light bar will fit my Denali grill with active shutter vents.  

it's not alot of room but it has been done with some minor trimming.   probably a single row curved bar. 

if anyone has recomandations please share 20210801_195400.thumb.jpg.34b920e68b44cf520328dd2fe7f96be9.jpg20210801_195151.thumb.jpg.53c73d14d069c355c45afd7b1cb70700.jpg20210801_195313.thumb.jpg.eb7f2783bf08a191b7ecb83f5cbbcc03.jpg20210801_195216.thumb.jpg.6f7a088f06cc52968865c9b78d205892.jpg 

  • Like 3
JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
On 4/19/2021 at 7:36 PM, superdave160 said:

I just completed adding factory fog lights and an off-road light bar to my 2017 Silverado WT.  I installed the light switch with the fog and off-road light buttons and added the fog light wires between the switch and the BCM that were not installed from the factory.  I also installed the wires from the switch to the BCM for the off-road light. 

 

I chose a bumper mount light bar.  It came with a harness with a relay and switch.  I cut off the switch and rewired the harness to connect to the BCM.  When wired up, the off-road light indicator displayed on my Denali cluster when the light was on.

 

My 2017 Silverado WT came with a black bumper without fog lights.  I installed a chrome bumper with the factory fog lights.  The light harness was still on the bumper, but the Silverado did not have the connector that mates to it.  I purchased an off-road light bar wire harness (again with a relay and a switch) and cut off the switch and rewired it to work with the fog lights and connect to the BCM.  However, the fog lights did not come on when the switch was pressed.  I learned that the fog light feature had to be enabled on a Silverado that did not come with factory fog lights.  White Auto and Media Services (WAMS) has a service that allows you to enable/disable features in your BCM.  I purchased the service and was able to enable the fog lights.

 

The fog and off-road lights now can be turned on and off independently (assuming it is dark enough) and their associated indicators display on the Denali cluster.

 

I want to thank TinkeringFox, the Harness Dr. and WAMS for their assistance in completing this upgrade.

 

Picture1.jpg

Picture2.png

Picture4.jpg

Great job!!!

 

Got curious about the Yellow Fog Lamp icon and found this:

 

 

And, yes, there is a Rear Fog Lamp Indicator symbol, in yellow/amber. This indicator also is only active when the lamps are actually on. The lines point to the right in this symbol, indicating a rear-facing beam. They are rare in North America but required in Europe. They make a vehicle more visible in poor weather to trailing drivers.

Either are switched on, so look for a similar symbol on the light switch or switches.

  • Like 1
  • 5 weeks later...
chopjaw Enthusiast

chopjaw

Posted
Posted (edited)

My Gawd this is an awesome thread.  I have a 2018 2500HD Denali, looking to add a lED lightbar and found this thread.  I'd like to see if anyone has done this to a 2018 and if someone has the blue switch for sale?  What about the pigtail harness (custom) that goes from switch to lightbar?   

 

Thanks so much for all of the info.

Chop.

 

Edited by chopjaw
  • Like 1
MikeBMW Senior Enthusiast

MikeBMW

Posted
Posted
26 minutes ago, chopjaw said:

My Gawd this is an awesome thread.  I have a 2018 2500HD Denali, looking to add a lED lightbar and found this thread.  I'd like to see if anyone has done this to a 2018 and if someone has the blue switch for sale?  What about the pigtail harness (custom) that goes from switch to lightbar?   

 

Thanks so much for all of the info.

Chop.

 

With your 2500, maybe check here for more info?
https://www.gm-trucks.com/forums/forum/174-2015-2019-silverado-hd-sierra-hd/

  • 1 month later...
Putergod Enthusiast

Putergod

Posted
Posted

My eyes are hurting from reading 27 pages...

I have a 2015.5 3500 HC Dmax. I have read about the latching relay, and such. I currently have the sports bar, and want to add lights to it (though I'll likely be using aftermarket lights, as the ones GM sells they are very proud of).

My question is, has the "kit" been produced for the pre-2016 models yet, or do I need to build it out?

Also, if I do need to build it out, is there a more detailed wiring diagram for using the latching relay module?

 

TIA

Putergod Enthusiast

Putergod

Posted
Posted

Also, two more questions...

Has anyone determined if the 2015.5 has the BCM programing or not?

Does anyone have a blue switch for sale?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Sad thing is that this doesn't have to be the case. LSPI can be solved without a reduction in TBN. Swap Ca for Mg.  Cats are not a issue if the OEM can get a ring and valve guide seal even at SN levels of SAPS. Dizzy is purring like a kitten with a bowl of warm milk. 200K of Full SAPS oil and zero detonation issues and nice a clean inside and out. This shouldn't be an issue. It isn't 1920.    Tell ya what AMSOIL SS is excellent at, internal cleanliness. The new formula is even a step up from their already outstanding cleanliness levels. Can't say the OEM offering is quite that clean. There marketing suggest the SS is cleaner.     That is the only defense with at shelf oil. Nothing wrong with them if you ignore the marketing and OEM 'recommended' OCI and use a thimble full of common sense. 😉 You go sir. 
    • StingerZ16
      Roll up bed cover experiences

      By StingerZ16 · Posted

      I started with a folding cover by BAK PAC on my 2500. It went bad after close to 5 years. Bent and vinyl coming loose. Contacted BAK and they gave me a very good discount on a Revolver. Had it a number of years. Mostly outdoor storage. Some garage storage. Vinyl started to come loose. Still under warranty so they replaced to cover. Sold the 2500, bought the 1500 and got another revolver for it. Had it a couple years now and no issues. I store it indoors. Got a bit of discount when buying it as well. If you are seeing problems, contact BAK or real truck and let them know. Customer service was pretty good. But I think they changed their warranty.
    • Chuck FB
      Towing In Loose Gravel

      By Chuck FB · Posted

      I agree, there is no one answer fits all as every rig is different, one may be pulling some little aluminum fishing boat while another is towing a monstrosity that weighs a lot and hopefully the owner if the rig has some prior experience to know what drive mode they should choose.    It also struck me and this is from watching a few of those boat ramp escapades videos in the past, Ford being one of the vehicles that has the auto front axle hubs and sure enough its found out that one hub has crapped out and won't engage and may not have manual hubs to even select on both sides so they are on the boat ramp stuck with no four wheel drive and spinning .... they flat out need a tow to get up the ramp and deal with the vehicles new found issues. That can happen to all brands of pickup, finding out either four wheel drive or 4 low isn't working right at the time its needed it to work as some electronic crap has failed. 
    • Chuck FB
      Towing In Loose Gravel

      By Chuck FB · Posted

      Its possible you never had the joy of the crappy boat launches we tend to have around here or really some of them are just grades down to the river if its a river scenario and the conditions change all the time with the river levels and silt deposits. Some of the lakes we went to years ago, there was no such thing as a cement pad that went down into the water that the trailer stayed on, it was gravel maybe up to the water line and then duck crap much beyond that so sinking the boat tires into mud. Of course some of the more established lakes had a cement bar type boat ramp but sometimes it was covered in green slime closer and certainly within the water and a two wheel drive had all sorts of fun if one had to touch that slime with the rear tires.    A neighbor of mine had made a comment years back with his chev truck that was probably about the same year as yours but a half ton extended cab 4x4 and he a a fiberglass boat with an inboard so it wasn't a feather weight and he had gone out to one of the large popular lakes in the area and don't ask me how this happened but he was in two wheel drive as he figured he didn't require four wheel drive for that boat ramp and somehow upon pulling the boat out he twisted one of his drive axles. I suspect it must have spun and then grabbed on the cement ramp and shocked it to the degree of twisting it. He would have had the standard 8.5 or whatever it was axle housing as the 9.5 ring gear like my truck has also has larger drive axles as far as I know. Anyway he was feeling a vibration driving home and had it checked out and a shop found that the tire/hub was wobbling because of the axle had twisted so in went a new drive axle. After that bad experience he said he made sure to put it into four wheel drive to lower the stress on the rear axle. Of course that is where an HD truck can handle a lot more stress and no doubt these newer half tons with their larger ring gears probably have larger drive axles as well to match vs back in the day. 
    • asilverblazer
      2027 GMC Sierra: Official Discussion

      By asilverblazer · Posted

      Desirable - as in does someone WANT one, aspire to have one. Could reasonably buy any car they want and CHOOSE these instead.    I didn't watch the video, why did they win?

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...