How to Install a P3 Brake Controller on a 2014 GMC Yukon XL
Updated 04/15/2026 | Published 03/22/2015
Question:
Hello, I have a Tekonsha P3 that I would like to use on my 2014 GMC Yukon XL. The Yukon does not have a factory brake controller. Can I use this wiring adapter for the P3 and Yukon?
asked by: Mark P
Expert Reply:
On a 2014 GMC Yukon there is no place to plug in a controller but the vehicle does have a tow package wire bundle up under the dash, to the left of the steering column, held together with a white tag. I have linked a video on a 2013 Yukon XL that will be the same as your 2014.
I have also linked a help article that will help. There may be some under the hood connections that need to be made as well and the article will help with that.
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John T.
4/15/2026
Do you still have the video link?