Parts Needed To Add A Brake Controller To A 2024 Toyota Highlander
Updated 01/19/2026 | Published 08/11/2024
Products Featured in This Question
Question:
Just want to confirm all I need is this wiring harness pluss a barke controller to install a 7 pin plug on my 2024 Toyota Highlander? This takes care of the issue of the brake controller backfeeding 12 v into the brake circuit and causing problems so I dont need a seperate diode? I understand the convience of using a Tekonsha brake controller but I should b able to use other controllers as well? Lastly when I bought my Toyota I got them to throw in the trailer light modlule and the 4 pin connector wiring harness if I use this Tekonsha custom harness I shouldnt need the two parts I got from Toyota, correct?
asked by: Frank T
Expert Reply:
Hey Frank,
The Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter # TK57VR would work as long as you have a factory connector in the rear cargo area to plug into for your light functions. This connector is typically hidden under the trim panel on the driver's side, usually there's a cup holder you can pop out to get to it. You shouldn't need the other wire harnesses but I would hang onto them as a backup just incase.
You can use the included brake controller wire harness to connect to a Tekonsha brake controller or you can splice into the harness from another brake controller. Personally, I recommend going with the Redarc Tow-Pro Liberty # RED52VR and using part # RED48FR to mount the control knob into the dash in a blank for a more factory look. The blue, red, white, and black wires from both harnesses and be matched. together color for color.
The # TK57VR doesn't include a mounting bracket so I recommend also picking up a no-drill bracket # 18136 and 7-way bracket # 18138 to make mounting the 7-way easier.
(click to enlarge)
Continue Researching
- Search Results: 51126
- Shop: Trailer Wiring
- Shop: Trailer Hitch
- Shop: Brake Controller
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Search Results: axle spring perch
- Search Results: tonneau cover
- Search Results: 17109
- Search Results: trailer hub
- Q&A: Availability of Access 4008405 SnowSport Pro Utility Plow
- Shop: SnowSport Pro Utility Blade for Tractors and Skid Steers - 18" Tall - 96" Long
- Video: How to Install the Redarc Tow-Pro Liberty Brake Controller - 2021 Ford Ranger
- Shop: Vehicle Snow Plows
- Shop: Agri-Cover SnowSport HD Utility Snowplow for 2" Hitches - 84" Wide Blade
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class V XD - 2"
- Shop: TorkLift Wiring Harness Extension for 21" SuperTruss Hitch Extender - 7-Way RV
- Shop: etrailer Electric Trailer Jack - Drop Leg - A-Frame - 18" Lift - 3,500 lbs
- Shop: TorkLift SuperHitch Original Trailer Hitch Receiver - Custom Fit - Class V - Dual 2" Receivers
- Search Results: towing harness
- Search Results: trailer hubs and drums
- Shop: Nerf Bars - Running Boards
- Shop: Roof Rack
- Video: DIY Install: EcoHitch Hidden Trailer Hitch Receiver on your 2022 Toyota RAV4
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2022 Toyota RAV4
- Video: DIY Install: Universal Installation Kit for Trailer Brake Controller on your 2011 Toyota RAV4
- Video: Redarc Tow-Pro Liberty Brake Controller Installation - 2019 Toyota Highlander
- Video: Review of the Dexter Electric Trailer Brakes
- Video: A Closer Look at the Redarc Encapsulated Power Diode for Tow-Pro Brake Controllers
- Q&A: What Wiring do I Need to get My 2022 Toyota Highlander Ready for Redarc Tow-Pro Brake Controller?
- Shop: Tonneau Cover
Robin H.
1/19/2026
Hey Frank, how did everything go with the Tekonsha wiring harness on your Highlander? Did the connection to the factory plug and brake controller setup work out the way you wanted? Your update could make it easier for others wiring a 7-way on the same vehicle.