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trailer brake controller

  1. Madhattan

    Install OEM trailer break on 2013 Avalanche

    I have a 2013 Avalanche black diamond edition. I just got into a camper and the dealer there wants to install some universal trailer brake kit. I don't want them to drill any holes on my knee bolster, so I was looking around and noticed that some of the Avalanche LTZ models come with trailer...
  2. U

    Third brake light and Brake controller issue

    Hello, my third brake light stopped working after I installed my trailer brake controller. Weird thing is. Upon pushing brake pedal the brake lights on the back work fine, just not the third brake light. Other weird thing is that if I manually engage the trailer brake controller the third brake...