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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 on the console, just 1-7/8" long and 9/16" wide. It looks like a factory switch instead of an aftermarket add-on. The knob handles it all—adjusting brake power, manual override, and troubleshooting with color-coded lights. The controller meets UNECE R21 and FMVSS 201 safety standards, so it’s built to stay secure and out of the way.
Sand, mud, or steep descents can make towing unpredictable. With off-road mode, you set how much braking force your trailer gets instead of relying only on your tow vehicle. Keep it light in soft terrain so the trailer doesn’t dig in, or turn it up on steep grades so it doesn’t push you downhill. A quick double tap on the knob activates the mode, and the LED glows green when it’s engaged.
Jerky braking disappears with proportional control. A built-in 3-axis accelerometer senses how hard you’re braking and matches the trailer brakes to that input. Ease onto the pedal and the trailer eases in; brake hard and it responds just as firmly. It works with electric or electric-over-hydraulic brakes on trailers with 1 to 3 axles (up to 6 brake assemblies). The result is balanced stopping power and less wear on your whole setup.
No need to splice wires or cram a big box under the dash. The plug-and-play harness connects directly to your vehicle wiring, and the main unit can mount almost anywhere within reach of the 3-foot cable that links it to the knob. Use screws, tape, or zip ties to secure it out of sight. Once installed, calibration happens automatically as you drive—no extra setup needed.
The controller runs on both 12-volt and 24-volt systems with an output voltage range of 9V–32V and a 25 amp continuous rating. That means steady braking power even under heavy loads or long downhill grades. It’s backed by a 2-year warranty for peace of mind wherever you’re towing.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Brad Hello neighbors. It's Brad here at etrailer. And today we're taking a look at the vehicle-specific wiring harness, that will work in conjunction with the Tow-Pro Elite electric trailer brake controller. These harnesses are going to be great to work with your Tow-Pro Elite in a variety of different trucks and SUVs. Now, make sure that you get your vehicle-specific harness. You're going to want to use our fit guide on "etrailer.com", and that's going to make sure that you get the right harness, and that way your install goes nice and easy.
Included in the REDARC kit, you will find this plugin adapter, and this is going to have these spliced ends, and you're gonna have to tie into your brake signal, your brake output, your power output and your ground. Now, if you are pretty handy with electrical, that's awesome. That's great. You can use this. But I'm the kind of person, plug and play in OEM kind of setup or really nice factory one like this.
This is the vehicle-specific harness. So this ties in directly to our factory tow system, and clips right in, it's got this nice braided sheathing on it, to kind of protect the wires, and then it plugs directly into our module here. So, to save yourself a little bit of headache and time, and make the install go that much smoother, and not have to worry about loose connections, I highly recommend getting the vehicle-specific harness. So this end of the plug is specific to your vehicle. As you can tell, it looks like the factory plug, it fits in perfect, has the locking mechanism, so you aren't gonna have to worry about loose connections happening with your plug, and it's going to make install a lot easier.
And that was a look at the vehicle-specific harness for the Tow-Pro Elite electric trailer brake controller..
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Not supplying the comparable connector to connect to my towing package on the Cayenne is a major issue. The install was not as simple as you advertise. Very disappointed.
The Redarc Tow-Pro brake controller has worked flawlessly since I installed it a year ago. I tow a fairly light (2000 pound) pop-up trailer, which can be an adjustment challenge when braking on loose surfaces. I've found it very easy to slightly reduce the setting while on gravel and then return to the correct setting when returning to normal roads.
I purchased the Redarc because I could never get my previous controller to brake smoothly - it would often jerk at low speeds. I think that controller had problems because it was inserted into the 7-pin connector that was held by a metal bracket under my bumper that I suspect vibrated when braking, which confused that controller. Once I switched to the Redarc, which is firmly mounted under the dash, I had no more problems like that.
Finding a location in my Honda Pilot to mount the control module was a challenge - but well worth the effort. I mounted it to a plastic panel that I installed over an unused cavity in the console underneath the radio (see picture). The knob is easy to reach, and is out of the way of my knees.
Mounting the main control box under the dash was made easier because I didn't have to worry about its precise orientation since it will calibrate itself wherever it sits.
Works perfect. Makes installing the brake controller in my 2024 ranger a 15 minute job. Highly recommend
Was looking for a trailer break for a 2021 Honda Passport. My vehicle didn't have a hitch so I installed an etrailer hitch and later, a 7-way plug (also from etrailer) just in case I bought a camper. Now I'm purchasing a camper so needed a break. My experience with emailing and then "live chat" came up dry as far as a plug and play option for my Honda. I checked my vehicle and it did have a 4-pin under the dash so I thought this strange. I decided to call and ended up speaking with Fred who took the time to think through how to make it work. As disappointed as I was in my interaction with emailing and Live Chat, I was thrilled with Fred's support. The parts came quickly (as usual with etrailer) and the install was a breeze. Thank you Fred!
Works great in my 2024 Ford Ranger
I was concerned about the compatability to the 2025 XLT Ranger because no one seemed to know if it would,,, YES! Plugged into the factor port! I did hard wire it to my controller but thats because it is the same controller I had in my 2020 Ranger! Works great!
Installed on 2025 Santa Cruz. Worked very well. Simple to install. No controller in the way and works great. Will install one on my jeep.
Love the self-calibration and hidden controller. Great space saver and works as described. I did find the knob location in your video not very good; I could not see it through the steering wheel when driving. As you can see from the picture it is now visible from the driver's seat and easy to adjust when needed. Also, in this location the only hole I had to drill was 3/16" behind the knob and not visible or damaging. I was able to use the knob bracket that came in the kit and just push it into place, very stable.
I’m going to be up front and say I have not tested this beside driving around town. The install was very quick, maybe 20 minutes in all initially in my 2017 Nissan Titan SV. I do have some concerns though. After install I had no lights to show calibration was going on. From reading the user manual I guess that can happen. First time hooking up the trailer everything seemed fine and the light was blue as it should. Once I turned my running lights on though it began to blink red showing a fault with the cable. I tested everything to make sure it was getting voltage and the wires were correct. After about an hour I found something between my backup camera on the travel trailer and the brake was causing some sort of issue. I removed the camera, unplugged all the cables from the tow pro elite and hooked it back up. Once plugged back in it showed green and blue lights showing it was calibrating. I drove the trailer around town and our relief route. After about half an hour the light turned solid blue. The control is easy to use and looks very nice. I’m unable to get it to switch to user control mode but the proportional and manual brakes works fine. I will update my review after we take it out on a few trips. As of now it seems like a great product, very clean looking and should do a great job.
Easy to set mount, set-up and go to working. I like the simplicity of the controller. The only thing you see is the control knob.
It truly amazes me that Ford touts the towing capacity of my Ranger, yet not one dealership I called could offer a solution for a trailer brake controller to be able to pull my little camper. I finally turned to etrailer since they had helped me meet my towing needs in the past with a different vehicle. etrailer's Redarc Tow-Pro Elite Trailer Brake Controller was a perfect solution! They also supplied a terrific video explaining in great detail how to install it in my truck. I preferred the in-dash location using one of the extra twelve volt ports using the optional round adapter insert and found it to be very convenient after a summer of towing. Highly recommend both Redarc Tow-Pro Elite and etrailer!
The Redark trailer brake controller installed easily. In my 2020 Toyota 4Runner. It looks like it came installed from the factory. It’s small and easy to reach when driving. It came with a plastic install panel. This is designed for installing in a hole that you drill in your dash. It will not fit in a knock out space in your dash. There is one that fits the dash perfectly that you can buy from etrailer.
etrailer automatically bundled the Redark trailer brake controller with the correct plug and play wiring harness for my vehicle. It was nice not to have to search for the wire harness. Everything installed perfectly.
I haven’t tested the function of the brake controller yet. I’ll hook up to a trailer this week.
The items arrived in less than a week and the package was in good condition. The order tracking worked great. The tech videos on the etrailer website were really helpful. I’ll purchase from hem again.
Perfect for installing my RedArc TowPro Elite in my 2022 Ford Bronco. Plug and Play - Note: In order to be a Plug and Play install, Your vehicle must already be equipped from the factory with the Towing Package, which means that it is PRE WIRED for the Trailer Brake Controller and there will be a large rectangular plug for the TPH-007 harness to plug into. If your vehicle was NOT equipped with a factory tow package, this connector will NOT BE THERE and you will need to run wires to the TowPro unit using the basic wiring harness that is supplied with the TowPro and you will need to run a trailer brake output wire to the rear of the vehicle at the 7-pin connector port.
Shipping was all messed up customer never got installed
I saw the great online reviews of this controller and took the plunge. I bought my 2002 Chevy Silverado K1500 extended cab short bed truck new in 2001. It came with the HD Towing package which include a factory plug in trailer brake wiring loom. I took my time over a 2 day period to carefully install and triple check my install. The Chevy and Redarc wiring wiring descriptions made it easy to join the two harnesses. I used HD crimped plug in connectors further protected with shrank tubing. All wiring was bundled with zip ties after encasing in HD harness protective cover. Zip ties held in place behind the removable panel beneath the steering wheel. The control button is installed on the right side of the steering column within easy reach. Nice install. I read that the light would not go on until a trailer was hooking up. I was elated when we picked up our new cargo trailer and the controller knob light lit up upon hitching up. the first mile of travel allowed easy testing of the system and fine tuning came a few miles further down the road. GREAT PRODUCT!
Works great. Very easy installation. Just got back from our first camping trip and not have the bulky trailer controller in the way is a nice feature. Highly recommend
The Redarc controller and wiring harness worked perfectly, exactly what I needed for my 2025 Ford Ranger
Exactly what was needed for my 2025 Ford ranger. Plugged right in still working on mounting brake control. Very quick shipping and keeping me informed. I believe this is the only place I'll go to for my trailer needs now.
Simple easy plug and play setup, only issue I had was would be nice if they provided a hole saw for the install, not everyone has a need to buy one, so had to wait for one to be delivered, otherwise very pleased with this product
I have been pleased with the Redarc controller. I like that it's hidden away from sight except for the knob. It works as advertised with no issues whatsoever. I tow a dump trailer rated for 16,000 lbs with an 06 ram diesel and the brake controller makes it so much easier on the vehicle brakes. I highly recommend.
My Redarc Tow Pro Trailer Brake Controller has worked stellarly. It has occasionally had to self-recalibrate, but has done so successfully. On my end, I've needed to keep the contacts clean and make sure they're securely connected. I used a conduct-ant greece that prevented corrosion from hindering contact and would recommend its use. Thanks so much for an excellent component!
Stuart
8/6/2026
My Redarc Tow Pro Trailer Brake Controller seems to switch on and off a lot. It always recalibrates and comes up working, but the frequency of the on and off again factor concerns me. Thanks for the inquiry!
Christopher H.
8/6/2026
Installation was as described in the Colorado video. My 2015 4x4 dash required a different location than where the knob is located in the video( where the 4x4 knob is ). The dial knob just fits inside the upper clips for the credit card slot. I used the left side for better visibility. I drilled a pilot hole and then slowly enlarged it, dragging it as needed to keep it centered under the dash clip. You will understand when you remove the card slot. Remove the lower dash to get to a hidden screw, then the card holder pops straight out.
Great product. Easy to install, especially if you already have a brake controller. The control unit is easy to mount almost anywhere since it automatically detects its orientation. The calibration process is automatic, you just drive and make a few stops (and calibration happens even when the trailer is not connected). Then it is a matter of dialing in the maximum braking force. The progressive action is smooth and stopping is jerk-free. Be sure to get the vehicle-specific mounting panel if one is available. Otherwise a generic panel is included. Attached is a photo of installation in a Toyota FJ Cruiser -- not much to see, as the control box is invisible under the dash.
Amazing Brake Controller- I pull a 6000lbs Rockwood trailer behind my 2015 Grand Cherokee and this controller has saved my tail a few times. Not only has the emergency feature pulled my trailer straight in a few clincher moments with wind, but the proportioning is truly amazing. Multiple times over the 4 years I have used it, and it has worked flawlessly in emergency situations. During my 12,000 plus miles I have never felt the trailer pushing me during braking, it actually feels like i have nothing behind me. Loaded it weighs in at 6800lbs. Thank you for designing an awesome product.
I installed on my 2019 durango without factory tow package, instructions were straight forward, managed to place in center consol, wires to battery. Seen videos sending wires to engine compartment. Worked out with the wires I had and able to place fuse as well. The brake light cable, had a little challenge, since car uses same light for turn signal, it gave intermittent signal, so I wired it to the center rear/3rd brake light. In all it worked amd made it easier to slow down, especially when I was towing nearly 6k. I didn't feel the push of the trailer. Don't have pics of the install, just the final location of my control.
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Rob W.
8/25/2025
Still working great!