What goes here?

[Chickensandwich]

I have a 2018 Tahoe PPV and heard a rumor that all of the wiring for a lot the little buttons and switches that normal Tahoes have, is hidden behind the dash. I popped off my light switch panel and found these two harnesses plugged in to absolutely nothing. I’m just curious what buttons or switches would these wiring harnesses go to? My Tahoe is 2wd and I know the 2wd/4wd switch is there, and if that’s what they are for then they are worthless to me, but I have also seen engine disable switches there on other Tahoe PPVs.

Thanks for any help!

 

[Chickensandwich]

From what I found to this point, perhaps some kind of trailer control on the lower part of this panel and two extra buttons on the top for power pedals and lane departure. Not sure if any of this would work….any one know for sure? Lane departure would be cool….I have the front sensors

 

[Sparksalot]

From what I found to this point, perhaps some kind of trailer control on the lower part of this panel and two extra buttons on the top for power pedals and lane departure. Not sure if any of this would work….any one know for sure? Lane departure would be cool….I have the front sensors

I believe you’re correct. My dad has a 2016 Silverado. His description of the brake controller puts it right there.

I have the lane departure and pedals above.

 

[wjburken]

I have a 2018 Tahoe PPV and heard a rumor that all of the wiring for a lot the little buttons and switches that normal Tahoes have, is hidden behind the dash. I popped off my light switch panel and found these two harnesses plugged in to absolutely nothing. I’m just curious what buttons or switches would these wiring harnesses go to? My Tahoe is 2wd and I know the 2wd/4wd switch is there, and if that’s what they are for then they are worthless to me, but I have also seen engine disable switches there on other Tahoe PPVs.

Thanks for any help!

In looking at the manual for a 2018 Tahoe, it looks like the 4WD and Trailer brake controls go there.

https://cdn.dealereprocess.org/cdn/servicemanuals/chevrolet/2018-suburban.pdf

 

[B-train]

That would be my assumption based on my 2017.

 

[Chickensandwich]

Both plugs are for the trailer controls?

 

[B-train]

No, 1 for 4wd, the other dor TB

 

[B-train]

Man, I need to proofread more often.....my fat fingers make me sound illiterate. LOL

 

[Ghost10]

15 16 17 18 19 20 YUKON Headlight Switch Trailer Brake Controls Black Trim | eBay

Removed from 15 GMC YUKON with 138534 miles. Part Comments: Headlight Switch Trailer Brake Controls & Trim. Please click See full description if fitment guide does not display here. This part fits the following: .

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[nglauer]

Has anyone added a factory brake controller? I had read in other posts that it couldn't be done...but it's odd that the wiring would be there? It would be cool if it was an easy swap though.