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2018 GMC Acadia brake controller install

7.6K views 3 replies 2 participants last post by  joe45c  
#1 ·
Just finished a brake controller install on my 2018 Acadia with tow package. Wire for the controller were at the firewall just around the gas pedal area. Fairly easy to do, with basic tools like a line tester, tape, butt splices, and zip ties. Thanks to GMC for making this a DIY job. Check out the photos of the finished product, sorry about the pic orientation.
 

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#4 ·
This should be easier than when i installed one on my trailblazer. The wires were there but i had to splice them to the brake controller while i was twisted like pretzel. my acadia came with the plug in pigtail so i'll just wire it to the brake controller before i go under the dash. then just plug it into the portal.