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Most brake controllers hang down under the dash where they get in the way. The Tow-Pro Liberty hides its main unit behind the dash and leaves only a small knob visible. The control knob measures just 1-7/8" long x 9/16" wide x 3/4" tall, so it blends right into a blank switch panel or console slot. You get all the function—adjusting brake power, hitting manual override, and reading color signals—without cluttering your interior.
The Tow-Pro Liberty uses an internal 3-axis accelerometer to sense how your vehicle slows down and applies the same braking force to your trailer. That means no jerky stops or push-pull feeling. It works with trailers up to 2 axles and supports both electric and electric-over-hydraulic brakes. With proportional braking, your trailer eases in exactly when you do for smooth, even deceleration every time.
Setup is easy—just drive normally and let the controller learn its orientation as you brake. LED lights change from flashing green/blue during calibration to solid blue when ready. Once calibrated, it stays that way automatically. If you ever need to recalibrate, it does it on its own while you drive so you don’t have to mess with any settings.
The Liberty mounts out of sight with almost no restrictions on orientation. A 3-foot cable connects the control knob to the main box, giving flexibility on where you mount it. Secure it using screws, double-sided tape, or zip ties (not included). For the wiring side, a plug-and-play harness makes connection straightforward—no splicing required when using a compatible adapter harness (sold separately).
This controller meets UNECE R21 and FMVSS 201 safety regulations and outputs 9V–16V with an 18-amp continuous current rating at 12V DC. It’s designed for dependable operation on rough roads or long hauls and carries a 2-year warranty for added peace of mind.
Pick up a universal mounting panel to give your installation a professional look! 331-TPSI-001 - sold separately
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
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.
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
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
William
5/19/2022
Flawless operation after one season of towing. Expect the same this year.
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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.