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  1. Trailer Brake Controller
  2. Redarc
  3. Electric
  4. Electric over Hydraulic
  5. Proportional Controller
  6. Up to 2 Axles
Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
Redarc

Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional

Part Number: RED52VR
In Stock
$217.00
Trailer Brake Controller

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This is one of our favorite brake controllers, with flawless braking and a tiny dash knob that looks like it came straight from the factory. It's so easy to adjust your settings or activate manual override. Great Prices for the best trailer brake controller from Redarc. Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional part number RED52VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Redarc Trailer Brake Controller - RED52VR

  • Electric
  • Electric over Hydraulic
  • Proportional Controller
  • Up to 2 Axles
  • Redarc
  • Behind-Dash
  • Plug-In
  • Dash-Mounted Knob
  • Single Trailer Only
  • Indicator Lights

This is one of our favorite brake controllers, with flawless braking and a tiny dash knob that looks like it came straight from the factory. It's so easy to adjust your settings or activate manual override.


Features:

  • Proportional - Smooth, safe, and good for your brakes long-term
  • Sleek (tiny!) knob that blends into your dash - The main unit mounts out of sight behind the dashboard
  • Simple controls - Use the knob to adjust the settings, activate manual override, and troubleshoot
  • Safe - Meets or exceeds both UNECE R21 and FMVSS 201 regulations for sustainability and safety
  • Plug-and-play - Vehicle-specific harness included
  • Made in Australia - If it can take the Outback, it can take anything, mate


Specs:

  • Application: trailers with up to 2 axles (4 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
  • Main unit dimensions: 4" long x 3-3/8" wide x 1-1/8" tall
  • Control knob dimensions: 1-7/8" long x 9/16" wide x 3/4" tall
    • Length without dial: 1-1/4"
  • Output voltage range: 9V - 16V
  • Output current rating: 18 amps continuous
  • Maximum charging voltage: 12V DC
  • 2-Year warranty


Note: Pick up a universal mounting panel to give your installation a professional look! 331-TPSI-001 - sold separately


How to Use Redarc Tow-Pro Liberty

Adjusting the braking settings on the Tow-Pro Liberty is super simple. To get more power output - the maximum amount of power that will be applied to your trailer's brakes - rotate the knob clockwise toward 10. To decrease the power output, rotate it counterclockwise toward 0.


Redarc Tow Pro Liberty Braking Output Red Light

When you apply the tow vehicle's brakes, the knob will change from blue to red to signal that the trailer brakes are being activated. The higher the braking power output, the deeper the red that you will see.


Manual Override

To engage manual override, simply press the control knob. This will activate the trailer's brakes and brake lights independent of your tow vehicle, great for stopping sway or controlling your trailer's momentum in an emergency.


How to Calibrate Redarc Tow-Pro Liberty

When you are calibrating the brake controller for the first time, the LED lights will signal your progress.


Redarc Tow Pro Liberty Dash Mounted Remote Knob

You'll start by braking 20 times or so to let the unit learn its orientation and the direction of travel. You don't need to have a trailer connected for it to calibrate; the only difference is that the knob won't illuminate at all. If your trailer is connected, the LED light will flash green/blue as it calibrates. When the display turns solid blue, initial calibration is complete.


Once done, the unit will remain calibrated. If recalibration is required, it will happen automatically and without LED indication.


How to Install Redarc Tow-Pro Liberty

The Liberty has almost no mounting restrictions. It comes in 2 pieces: the main unit and the control knob. The main unit mounts out of sight and out of the way. You don't have to worry about dinging your knee on a bulky brake controller or interfering with your vehicle's airbags.


The control knob can be installed in any convenient spot that's easy for you to see and access. This can be a blank switch panel, an open spot on your center console, or wherever there's space on your dashboard. A universal mounting panel is included to ensure a clean, from-the-factory look. Custom-fit panels are available for certain vehicles as well. Before you do any drilling, be sure there's enough clearance behind the dash for the entire knob to install!


where to install REDARC Tow Pro Liberty on 2023 Jeep Wrangler 4xe

Once you've decided where you want to put the control knob, you'll need to find a good place to install the main unit. Your only restriction is the 3' cable connecting the main unit and the control knob. Securely mount the box using screws, double-sided tape, or zip-ties (not included). A mounting kit (RE67FR - sold separately) is also available for the Tow-Pro Liberty. Do not attach the module to wiring or cables that can shift as you drive!


REDARC Tow Pro Liberty Harness

The included wiring harness hardwires into your vehicle's wiring and then plugs directly into the main unit. For assistance in properly wiring the Tow-Pro Liberty, please refer to the diagrams below:


Redarc Tow Pro Liberty Wiring Diagram

What is Proportional Braking?

What is proportional Braking

Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Tow-Pro Liberty uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



EBRH-ACCNA Redarc Tow-Pro Liberty Brake Controller

TPH-025 Redarc Wiring Harness for Tow Pro Electric Brake Controllers

Installation Details RED52VR Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

2504 reviews
5 Stars
(2127)
4 Stars
(234)
3 Stars
(49)
2 Stars
(37)
1 Star
(57)
This is one of our favorite brake controllers, with flawless braking and a tiny dash knob that looks like it came straight from the factory. It's so easy to adjust your settings or activate manual override.

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See what our Experts say about this Redarc Trailer Brake Controller

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    There is a wiring kit for a brake controller Preston but it's not going to be a plug and play one. The 2025 Toyota Tacoma does not have a plug in brake controller port. Toyota stopped putting them in after the 2023 model. For your Tacoma, I recommend the Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness item # RED52VR. This is a proportional brake controller that activates your trailer's brakes when your Tacoma decelerates. The reason the Tow-Pro Liberty is the best...
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  • Parts Needed to Install 7-Way and Brake Controller on a 2024 Subaru Crosstrek With Factory 4-Way
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  • Trailer Hitch, Wiring, & Brake Controller For 2024 Chevy Blazer EV
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    Hey Kyle, congrats on the new SUV! I am a big fan of the Redarc brake controllers for the exact same reason. The Universal Installation Kit for Trailer Brake Controller item # ETBC7 plugs directly into your 4-way connector and requires you to run a brake controller, power, ground, and accessory wire. It's got all the fuses and wiring you need to complete the installation. For this set up you would need the Redarc Tow-Pro Elite Brake Controller item # RED44FR. The Tekonsha OEM Replacement...
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  • Availability of Hitch and Wiring for 2025 Toyota RAV4 Hybrid XLE Premium
    Hi John; we actually have both a hitch and wiring available for your 2025 Toyota RAV4 Hybrid XLE Premium. I recommend the following: -TowSmart Trailer Hitch Receiver # TS42VR OR -Oris Hitches Detachable Hitch # TS66VR -Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56434 The TowSmart hitch is my new go to for the RAV4. It has a concealed cross tube so only the receiver will be visible at the rear. It also comes with a matte black finish. If you would...
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  • Recommended Trailer Hitch Receiver and Wiring for 2025 Subaru Forester Towing Trailer
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  • Is There A Plug-And-Play Wire Harness For A Redarc Tow-Pro Liberty In A 2025 Honda Passport
    Hey Paul, Redarc unfortunately doesn't offer a plug-and-play wire harness for the Honda Passport but you could splice their included universal wire harness from the # RED52VR to Curt's # C51392. You'll just need to cut off the black connector and use butt connectors # 224775 to connect to the wires between the two harnesses. The harnesses both follow the same wiring code so you can match color for color.
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  • What do I Need for My 2021 BMW X3 M40i so I Can Tow a 6x12 Trailer to Move to a Different State?
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    Hey Jesse, Cool name. Correct spelling too lol. You came to the right place. I will go into this assuming your 2022 Ranger has no trailer hitch or trailer wiring connection of any kind. So first, for the trailer hitch I recommend the Curt Class 3 Hitch # C13417. It has a 2" receiver and 6,000 lb towing capacity. More than enough for your nucamp tab 360 which looks like would weigh between 3,000 and 4,000 lbs max depending how you have it loaded. Then for your wiring harness use the...
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  • Troubleshooting No Power To Trailer Brakes with Redarc Tow-Pro Brake Controller
    The best way to test your Redarc Tow-Pro Elite # RED44FR or Liberty # RED52VR brake controller is by cutting the blue wire coming out of it about 6" away from the controller and using a circuit tester to make sure power is coming out of the controller and going towards your trailer brakes. Try using your manual override by pushing the button to send power on that blue wire and you can verify this function. If you do get power coming out of the controller then you have an issue with the...
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  • Does The 2019 Toyota Tundra Allow For Plug and Play Trailer Brake Controller?
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  • Does the 2025 Jeep Grand Cherokee Have a Plug and Play Adapter for a Brake Controller?
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  • Recommended 7-Way Connector for a 2024 Kia EV9
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  • How to Add a 7-Way Connector and Brake Controller to a 2024 Subaru Outback Wilderness
    Hey Joseph. For your client to add a 7-way connector to their 2024 Subaru Outback Wilderness, they'll need our Universal Installation Kit for Trailer Brake Controller item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of their Subaru with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it. The Subaru's 4-way is needed for the lighting signals so it's...
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  • Difference Between Prodigy P2 and Redarc Tow Pro Liberty Brake Controller 2011 Toyota Sequoia
    The braking is going to be about the exact same between the Prodigy P2 part # 90885 and the Redarc Tow Pro Liberty part # RED52VR. The main difference will be that the Redarc only puts a small know on your dash and the P2 is a traditional brake controller that is much bigger. To install either controller you'd need the install harness part # 3040-P. For how much cleaner of an install the Redarc provides that would be the route I would go with. For tow mirrors the K-Source set part # KS81300...
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