2017 Denali XL extendable towing mirrors similar to 2500/3500 HD option

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MT Elk Hunter

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I understand that the wiring on the 2017 or newer Yukon/Denali and Escalade have proprietary wiring different than the Silverado/Sierra pick-ups. As a result, I have not been able to find extendable towing mirrors similar to the 2500/3500 HD option for my vehicle and towing needs. Strap-on extension mirrors are not a solution for my needs.

I am looking for information on how to prompt GMC to provide an over-the-counter mirror or any confirmed work-arounds to have a 2500/3500 HD GM or aftermarket mirror work.
 

Suburban13

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1A auto carries some from trail ridge that were just released a month or so ago.
 

jay67chevy

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Any luck getting these towing mirrors installed? Pics?
My XL is an SLE package with no built in turn signals, power fold, or blind spot detection. I'd buy a pair today if they mount right up to the factory mirrors. These look great compared to the snap on options.
 
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MT Elk Hunter

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Sorry for some bad news, but after a short delay while attempting a wiring work around I am returning the mirrors. Even though 1A Auto website advertises "GUARANTEED TO FIT" it doesn't since the 2017 Yukon XL, Denali has power folding mirrors. I looked at the GM Sierra/Silverado Service Manual schematics but the wire connector placement was too different and I didn't want to chance further testing to figure out the rewire since I have already caused control modules codes to appear.
 

CND17 BURBAN

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Oh this is sad news I was hoping that these would be a great solution for towing.
I was going to order a set in the next few weeks.
 

Demer

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In a dream world I'd take the mounting base section from the 1A mirrors and the rest of the parts/plugs from a 2500HD mirror. Not sure if anything would line up though and not willing to risk the $$ finding out.
 
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MT Elk Hunter

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In a dream world I'd take the mounting base section from the 1A mirrors and the rest of the parts/plugs from a 2500HD mirror. Not sure if anything would line up though and not willing to risk the $$ finding out.

That would be a good solution, but one will still have to figure out and re-position the wires in the 18-pin connector since the accessory configuration is different between many vehicle models. In a different thread I have seen that pgamboa has figured out, through a lengthy process, the wire positioning to adapt upgrade mirrors for the Sierra and Silverado models having different accessory packages. He even offers a custom built wiring harness, but again, the Yukon and Yukon Denali have still another wiring circuit. It is even worse if you have a diesel truck since some models have the mirror circuit shared with the seat circuit.
 

IamZ

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Any updates? I have a 2016 Yukon XL Denali that I'll be using for towing but my mirrors are pathetically small!!!
 

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