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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..
Great service from start to finish. This is my second order from etrailer.com and both were handled excellently. I got updates on the order and shipping continually until it arrives at my door. Great job.
This sure made things easy on my 2018 Silverado Tow-Pro Trailer Brake Controller installation-A simple plug and play install!
Installed this on my 2016 escalade, simple plug in. Just needed to drill a hole for the brake adjustment knob. Better than wiring the oem harness that requires snipping splicing and soldering wires up for a trailer brake.
The Redarc brake controller and harness showed up promptly. Per your information it was the correct harness, and after a little struggle, it plugged in, and it appears to be working correctly. The instructional videos were very helpful. We have not had a chance to test it fully yet, but manual control works fine.
I ended up installing it in a open area to the left of the wheel in my 2019 Escalade where the 4x4 controller would go if it were not two wheel drive.
Install went well in my 2018 Chevy Silverado and the controller works great.
Very good results and very satisfied with the purchase!
Easy install. Installed on a 2017 Chevy Silverado. I like that it is out of site and more like a factory install. etrailer makes this type of project easy with great install videos .
Shipping was fast! Install was a breeze, and looks great in my Tahoe! I have yet to use it but if it works as expected/advertised my 5 star rating will remain
Easy to install. I put the control knob where the factory OEM would be.
Steve
7/15/2022
still working great
Straight forward install. Hardest part is locating the control knob without permanently damaging a panel. I opted to replace one of my power outlets to accommodate switch. plug and play ready, controller flashed green/blue as ready to calibrate when tested
Plugs in and works. Duh.
product worked great hooked right up
Is a very easy install, The finish product is clean and easy to operate.
But most important, is your video; the installation video is clear on the installation and there was no hesitation on how to mount and connect everything.
Guy
3/6/2024
The brake controller has work flawlessly, it’s a very clean installation using the video.
Makes the hook up of the Redarc Tow-Pro Liberty Brake Controller flawless with the factory wiring. Definitely recommend.
The brake controller cable for Silverado made installation much easier than expected. I didn't want to put controller knob at knee level and had very few flat places otherwise; so I chose a spot available on the panel above the headlight switch. I had to take some plastic off the top & bottom of the "TRAILER BRAKE" bezel to fit between the change cup and the credit card slot. I painted the letters white on the bezel so it matches the white markings on the light switch. Looks pretty factory; but LED light on brake control knob is not obvious with all the light from the window. Should look good at night; but I try not to tow at night. It sure does beat the big knee-knockers of the past, though.
I bought this harness to connect my Redarc Tow Pro to my 2015 GMC Sierra 1500 truck. It connects the Tow Pro control unit to the truck’s brake system. It’s a perfect length to mount the control unit on the back side of the panel just below the steering column. Works great!
Once again etrailer came through with quick easy service and ordering and the product I purchased was just as advertised the plug and play harness made it easy and the redarc pro tow trailer brake is great thanks again etrailer
I ordered this plug and play with a Redarc controller for my 2021 Chevy Tahoe which both e-trailer and Redarc claimed to be the right one. I had to splice the wires which is what the plug and play is supposed to avoid. There is no wiring diagram included so I had to figure it out on my own. Would have sent it back but I had holes drilled and needed the brake controller to pull my trailer. Save yourself the hassle and buy a different brand.
Shame neither Redarc or E-Trailer don’t do there homework to know what style plug is really needed. I put a picture of what the plug should have looked like.
Gwendolyn Y.
4/10/2025
Hey Gary. I'm really sorry that we had incorrect information on our website. I'm going to have this harness refunded as it is incorrect for you 2021 Tahoe. If you ever need anything else please let me know, you can reach out to me directly. I know you have already spliced the harness but I did find a plug-in-play option which uses part # C51525 and part # 331-TPH-019.
Very good product. Easy to install and works great. Connected right into the GMC harness and system. No issues whatsoever. Highly recommended.
Neal
1/3/2023
Works great. No problems at all and super simple to install.
This was an exact fit to my 2019 GMC Yukon XL. I just had to pop the black cover off under the dash and there was the open connecter for the cable. Pins were labeled A, B, C and D to confirm I had the correct port. Simple plug and play with no wiring needed. Power is supplied from the existing plug.
Love this controller, nice clean look with performance to match. Wasn't wanting nothing crazy big and ugly to put in out Chevy tahoe for our camper so this small knob and under dash box makes it still look really clean.
Excellent shopping experience! Etrailer made the whole process easy, andI couldn't have been happier. And I love the free shipping!
I cancelled these parts when it advised not compatible with my 2018 Silverado. The representative checked with supplier and advised me it work! The reason it wasn't correct is the control switch required a flat surface to install and everything on this years dash is curved therefore not allowing the tps1-001 lock in. It installed loose and looks really bad . Ref order number 120535085 and 120535494. I have purchased from etrailer in past but not sure in future.
Very easy to install, drill 2 small holes and insert the switch. There’s only 2 wire bundles, one between the switch and control box and one from that box to the truck that all plug in. It looks like it belongs on the dash. There’s several videos online for ideas of where to mount it.
They gave me advise on what was needed, it worked out. The brake controller is great, small and looks like it came as a stock install. A friend machined the hole so it would be the correct thickness. Bill did a perfect job.
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Ken H.
8/13/2021
Perfectly!