How to Install the Redarc Tow Pro Liberty in a 2007 GMC Sierra 1500
Updated 01/31/2026 | Published 01/27/2026 >
Products Featured in This Question
Question:
Redarc lists TPH-025 as harness for 2007 new body GMC Sierra 1500 but I cant find that thing anywhere. Not even their site. I see you have the TPH-010 that fits a large variety of GMC vehicles. Will this one just plug into my 07s brake controller harness? Or will i have to go with a universal? Thank you,
asked by: John W
Expert Reply:
Hey John. There's no plug in brake controller adapter for the 2007 GMC Sierra 1500. What GM did was run the wires you'll need to install a brake controller under your dash but there's no connector on the end of them.
To install the Redarc Tow-Pro Liberty Brake Controller item # RED24FR, you'll need the Universal Wiring Harness item # RED69FR. This harness will allow you to splice directly into the factory wires. The Redarc Plug-and-Play Wiring Harness item # 331-TPH-010, you referenced, fits the 2014 - 2018 Sierra 1500s.
The wiring harness you're looking for is located under the dash, between the steering column and the top of the e-brake pedal, the harness will have a white tag on it, which makes it easier to locate. I've attach a photo below to help you find it.
What kind of trailer do you have?

Tom K.
1/30/2026
I went with a harness for my Express 2500 22 model year. The Redarc unit was a simple install. About 2 hours only because my van didn’t have a trailer package from factory. I had to run wires to battery add on fuse box. The system works great.
Product Page this Question was Asked From
Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Redarc
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Search Results: brake controller
- Search Results: brake controller harness
- Q&A: How Does Brake Controller Install in 2023 Chevy Traverse with Factory Tow Package
- Article: How to Install a Brake Controller on Chevrolet / GMC 1999-2006 Pickups
- Search Results: 3015~s
- Search Results: tekonsha brake controller harness
- Search Results: redarc mounting panel
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Shop: Universal Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Q&A: Brake Controller Recommendation for 2001 Chevy Silverado 1500
- Shop: Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers
- Search Results: wiring
- Search Results: redarc wiring harness
- Q&A: Can a Trailer Connector Be Added On a 2019 GMC Sierra 1500 To Bypass Smart Tow System?
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
- Video: Comprehensive Review: Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers
- Video: How to Install the Redarc Tow-Pro Liberty Brake Controller - 2021 Jeep Wrangler Unlimited
- Video: Redarc Tow-Pro Liberty Brake Controller with Universal Wiring Harness Installation - 2023 Chevrolet
- Video: The Low-Down on the Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Redarc Tow-Pro Elite Brake Controller - Dash Knob - Off-Road Mode - Up to 3 Axles - Proportional
- Shop: Curt TriFlex NEXT Trailer Brake Controller w/ Custom Harness - 1 to 4 Axles - Proportional
- Q&A: Recommended Redarc Trailer Brake Controller for 2005 Chevy Silverado 3500
- Q&A: What are the Wire Functions for Brake Control Wiring Harness 3015-S for a 2004 Chevy Tahoe
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Q&A: What is the Difference Between the Tekonsha BRAKE-EVN Trailer Brake Controller TK28BR and TK63VR?
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Video: Redarc Tow-Pro Trailer Brake Controller Plug-and-Play Wiring Harness Review
- Shop: Trailer Hitch




John W.
1/29/2026
Thanks Jerred. That's the answer i thought was coming. I'm just planning ahead and have a redraw controller in my 4Runner so thought I may go with another for my old truck. Thank you, Regards, John W