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Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.
Features:
Specs:
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
Ratings & Reviews
This product is good quality overall. Installation is tough. I've got big arms and big hands and trying to get the bracket on the stud is all but impossible. Tip: wire the switch BEFORE installing the bracket and switch. Adjusting the switch is equally as difficult. Otherwise, it is a straight forward install.
I installed it myself to tow my 2018 Jeep Wrangler as I had experience as an auto mechanic myself years ago. I would not reccomend self install for those without such eperience even though the online videos were helpful. The only issue I had with performance was sticking lock mechasims which was resolved by calling the manufacturer, who instructed cleaning the housings which got dirty.
Lora G.
10/30/2023
Tow bar had to be replaced after 6 months use as it failed. There was no charge for the replacement.
Mike L.
11/14/2023
Returned-Not needed to for 2025 jeep that has factory installed trailing package. Looked tricky to install
This product is not needed for the DUO Plug in Play. The Tech support at DUO will provide you with the correct sequence of connections and will save you time and frustration of trying to install this item. REF; 20 Jeep JL
Glenn
1/29/2025
This portion was not necessary in my application so I cannot review it. The aux brake light switch was not going to mount easily in the manual transmission type 2020 jeep.
Great product and thanks to etrailer.com for the excellent videos detailing how to install the Demco Stay-In-Play Duo braking system. As a result of watching all of the available videos, I learned that there where a couple of different ways to install the system in our Jeep Wranglers. The first installation I did was in our 2019 Wrangler and that was super easy following the one video on your website. The second installation of the system was not as easy because our 2021 Wrangler has a manual transmission and required having to drill a hole in the firewall/floor board to run the wiring and vacuum tube from the passenger compartment to the engine area. If etrailer.com ever has an installation on a Jeep Wrangler with a manual transmission to perform, hopefully they will video tape that installation to guide customers with Jeeps with manual transmissions. I think etrailer.com's idea of mounting the control box on the fuse box is by far the cleanest and easiest way to install the Demco braking system.
I also followed etrailer.com's videos for installing the brake light system and the base plate on both our Wranglers and could not be happier with them. Thanks etrailer for all you offer.
Super fast delivery and install was just as easy!
NOT the correct part for my 4xe despite being assured by etrailer.
Gwendolyn Y.
3/25/2025
Hey Nicholas. That sounds very frustrating. I'll get this taken care of for you.
The bracket was clearly wrong for my vehicle and the installation photos and instructions were very different than my vehicle. As I was leaving for a trip in two days, I had to take a hammer to the bracket to finesse it into a shape that worked, although the mounting location is not ideal. I’m hoping that Etrailer can find the right bracket for me, however instead of replying to my inquiry they sent me this request for a review.
Gwendolyn Y.
5/20/2026
I'm really sorry to hear about your experience with this kit, James. You shouldn't had to deal with all of this. I am going to get this taken care of and look into the fitment issues that you are experiencing. We will be in touch.
Extremely pleased with this kit and the simplicity to install the unit in my 2021 Jeep. We towed the Jeep 5000 miles last October with the kit installed. It performance as expected. Thank you.
Gwendolyn Y.
3/13/2025
That sounds like an awesome trip! What areas did you travel to?
All items fit and preform exelently
We love the products and enjoyed pulling our jeep behind our RV. The instructions were well written and the support staff helpful. My husband put all of the products in our jeep himself and it saved a lot of money.
Gwendolyn Y.
4/23/2025
Always happy to help when you need us, Paula! Headed to anywhere fun soon?
Fast excelant service
All parts not included in kit
This was the most difficult of all the process but it can be done. The nut you’re looking for is the stud that holds the steering column up and is located up under the dash a ways up. Not one of the easiest processes but with the right tools it can be done. I would recommend coming up from the bottom instead of the side . You will need long extensions.it is a 13 mm.
Brooke M.
4/16/2025
Thanks, William! Sharing install tips is super helpful for other readers and I appreciate you for it :)
Installation is not to bad despite the location. But peace of mind knowing your toad brake is working is fantastic.
This works as advertised, but it was quite difficult/awkward to install based on where it has to go and the available access.
I purchased this product for a 2018 Wrangler JL. It is extremely time consuming and near impossible to install a trailer brake controller in this Jeep without it.
Great product installed very easily. I also used this switch to install a Brake Controller. By using this I did not have to tap into the Wrangler electrical system for the Bake Controller.
The instructions are a little difficult to follow but it was easy to install
etrailer’s installation video was very helpful. However, the mounting bracket holes on either end seem to be the same size (the video and instructions state that the switch fits into only one end but for me it fit into both). Consequently, it is not clear which side of the bracket to use for the switch vs the vehicle stud. One other installation hint, perhaps unique to the Wrangler Rubicon or Wranglers with upgraded audio/Uconnect, there is an electronic module (3”x4”), mounted to the dash framework behind the lower dash panel, that must be dismounted in order to allow access to the bracket mounting location (see photo).
It works as designed. Tricky for this old fat guy to work under the jeep dash but eventually got it installed and adjusted.
Was disappointed that your site said this was the part I needed so I ordered it. Then realized it was not correct part. Called next day to cancel and Oder correct part. I was told I could not cancel it and would have to pay to ship it back. The correct part which was ordered second came 2 days before first part. To get a refund I still had to pay to ship it back. Other than this trailer has been good to work with and quality parts.
Works great fairly easy install. It has been in use for the last 8 month's with no issues. Here may be some helpful hints that I found when installing. Use 10-12" long extension for 13mm nut (left side of opening panel that was removed). Install bracket. Adjust plunger & backing nut by feel. Remove bracket. Install switch with ring washer & nut. Crimp red & green wires on switch wires. Reinstall bracket under dash.
Michael R.
1/18/2024
Still working great
Thanks everyone at etrailer for your help and quick response and shipping! My project turned out really great as you can see in the pictures I have included. The plug for the removable holders I 3D printed. Thanks Fred
Victoria H.
1/14/2025
That's quite impressive Fred, nice ride!
Fred
1/8/2026
Everything works just fine! Great product and support! Thanks E-t
Josh B.
1/8/2026
Do you have a question about this Flat Tow Brake System?
Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
Info for this part was:
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Laurie
8/18/2020
So far the product has been performing as advertised. We towed from south Florida to Colorado and back with multiple stops and side trips and no issues at all. We even went 4-wheeling in CO for a day and nothing worked loose. Id recommend this product, with some modifications suggested by Rad.