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Most brake controllers stick out and take up knee room, but this one tucks the main unit behind the dash. All you see is a small knob, just 9/16" wide and 1-7/8" long, that controls everything—brake power, manual override, and LED alerts. It looks like it came from the factory and keeps your interior clean. The main unit mounts out of sight with screws, tape, or zip ties, giving you flexibility to place it anywhere within the 3' cable reach.
You can forget about jerky starts and stops with this proportional setup. The built-in 3-axis accelerometer senses how hard you’re braking and applies your trailer brakes in sync. Whether you’re easing to a stoplight or braking hard on a downhill grade, the response feels natural and balanced. It works with electric and electric-over-hydraulic brakes on trailers up to 2 axles (4 brake assemblies). That smooth braking also helps extend the life of your tires and pads.
Installing a brake controller doesn’t have to be complicated. The included vehicle-specific harness plugs directly into your existing tow package wiring—no splicing needed. Just connect the harness between your vehicle and the controller, mount the compact control box, and you’re ready to calibrate. Calibration happens automatically as you drive, so setup takes minutes instead of hours.
When sway starts or a quick stop is needed, pressing the knob instantly applies the trailer brakes and brake lights independent of your vehicle’s brakes. That gives you direct control over your trailer’s momentum whenever you need it most. The LED indicator changes color—from blue to red—as braking power increases, making it easy to see exactly what’s happening at a glance.
The Tow-Pro Liberty is engineered to meet or exceed UNECE R21 and FMVSS 201 safety regulations. It runs on 9V–16V DC with an 18-amp continuous output rating and a maximum charging voltage of 12V DC. This compact controller is made for durability in demanding conditions while keeping operation simple, safe, and consistent every time you tow.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Colin
4/22/2026
This has been working perfectly for me. Only issue I had was where I mounted the switch it could get bumped by my knee getting out the car. I 3D printed a small piece to prevent that.
Gwendolyn Y.
4/9/2025
The Redarc looks great in your Jeep, Kent! What kind of trailer are you towing?
Kent
4/10/2026
It has now been a year since I installed the brake control. I’m not a daily user, however every time I pull the trailer the controller works flawlessly and it’s convenient.
Jay
9/15/2026
We used this for a cross country trip in a 2019 Tacoma towing a camper from the east coast to Albuquerque for the balloon festival. Once the self-calibration was completed, the system worked like a charm. Great product. Highly recommend.
Christopher H.
9/15/2026
Ken
6/6/2025
Overall the Redarc Liberty brake controller works well. Ive only had to stop hard once and Im happy to report I had no sway or misbehaving. I have managed to inadvertently brush the sensitivity control knob, decreasing the sensitivity. Just follow your departure checklist which includes checking the brake sensitivity and you will be fine. My only complaint is the illuminated dial. It just isnt bright enough, or the numbers arent bold or big enough, its hard to see what the sensitivity is set at without getting your face right up next to it. I would recommend this unit to a friend.
Jerry
4/11/2025
Outstanding! 5000 miles and has not. failed me once. I have found setting the controller just under halfway 4 works best for highway and around town. Bumping it to 5-6 is wonderful on mountain passes and keeps both the truck and trailer easy to control. Great product! If I had done just a little more research I would have discovered e-trailer even has a harness for my application and would not built my own. Highly recommend for a Tacoma!
Bryce D.
4/11/2025
Brooke M.
4/23/2025
That is super exciting about the mini-home! I wish you the best of luck with the overhaul - if you feel like sending in some pictures when you're done, we'd love to see them :)
Randy
4/23/2026
Great! It is simple to operate and responds appropriately. Thank you.
Lazer S.
4/23/2026
Gwendolyn Y.
7/9/2025
Love to hear it, Robby! I wasn't familiar with a GeoPro so did some searching on it and now, I'm curious to know what model you have.
Bradley
6/30/2026
Very satisfied! I can really tell that I have more braking ability with this installed. Makes our trips much more comfortable and confident!
Chris
1/11/2026
The Redarc controller continue to impress me. This last year we went through NYS and the Adirondack Mountains where there are some long and serious downgrades and we also drove in a lot of stop & go traffic and I was always able to get the appropriate level of braking without locking the wheels. This is the best brake controller Ive ever used.
Chuck
2/14/2026
Still working great, no complaints.
Kenneth
7/19/2022
Great! The controller worked perfect and I was able to dial in the exact perfect resistance for the trailer brakes and everything towed very well. Unfortunately we sold our trailer but the brake controller still looks great in the car and I even got a compliment on how Stock or OEM it looked.
Bobby Q.
7/26/2023
After a year, still working good. We took the Pathfinder and the camper for a 450-mile round trip last weekend and it is still working as it should. The calibration takes a little longer sometimes when you go from trailer to trailer but Ive never had it not work eventually. It may be due to rust on our hitch or grounding on the car - still 100 satisfied.
Charles
4/26/2024
It’s been a year and it’s still working well. I was surprised to have it not work after changing the battery but all I needed to do was let the module relearn the same as when it was initially installed. All back to normal.
Simon F.
1/4/2026
Works flawlessly. Had a minor installation issue. Research technical support was super in resolving the issue
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Heather A.
4/12/2026
Love hearing everything went smoothly, Allen. And that photo is incredible. Those trees in the background are just stunning. Where was this taken?