To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Bulky brake boxes can clutter your dash and get in the way. This one mounts out of sight under the dashboard, leaving your interior clean and your knees free. The main unit measures just 3-3/8" long x 3" wide x 7/8" thick and can mount at any angle thanks to its 3-axis accelerometer. Once installed, it senses direction of travel automatically, so you still get smooth proportional braking without sacrificing space.
Instead of knobs or dials, this controller connects to your smartphone with Bluetooth using the OneControl app. You can set max output, adjust sensitivity, and apply the manual override right on the screen. The app works offline once downloaded and can store multiple trailer profiles so your preferred settings are always ready. It’s quick to pair—about 5 seconds—and continues to function safely even if the Bluetooth link drops, using your last saved settings.
The built-in 3-axis accelerometer senses how fast you’re slowing down and matches your trailer brakes to that motion. Whether you brake lightly or hard, it keeps everything in sync so there’s no jerky push or pull. It works with 1 to 4 axles (8 brake assemblies) and supports electric trailer brakes. That means smooth stops, less wear on tires, and more confidence when towing heavy loads.
You don’t have to mess with cutting or soldering wires. The included custom-fit harness plugs right into your factory tow wiring port under the dash. Mount the compact box using the adhesive pad or zip ties, plug in your trailer’s 7-way connector, and the system calibrates in seconds. When the LED turns green, you’re ready to tow—clean install, no hardwiring required.
If you tow more than one trailer, this setup makes switching simple. You can save multiple profiles in the app for both trailers and vehicles so every load brakes exactly how you like it. Just swipe to pick the setup you need and hit the road—no reprogramming between trips.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews
This controller took me literally 15 minutes to install with the required pigtail and my Rubicon with factory towing package installed. When I initially downloaded the app and connected, it actuated and locked the brakes. I simple deleted the app and reinstalled and everything worked normal.
Great way to get an electric brake controller wired into your vehicle. GM was real smart to put a plug receptacle in the electric box for the electric brakes for trailers. etrailer shipped my order right away and all the items ordered were in great shape. Will be buying from them again.
-Plug in and go--- Quick and easy installation. Works great. etrailer was great to deal with. I had a missing part in one of the boxes, due to careless shipping, and I E-mailed about the part and etrailer sent a new part right away. Thanks for great service.
Was not aware this device draws on the battery constantly. I don't daily drive my truck and have had to replace the battery twice in one month due to being drained below the point where they could be recharged. $[XX] later and this controller removed, I've not had any problems with the battery
First, let me say that I have never been disappointed with any of my transactions with etrailer. This holds true with my latest purchase of a Curtis brake controller and pigtail. This is my second because the first was fried when the trailer wiring shorted out. I received the controller in 3 days, which included a partial weekend. The pigtail make installation so simple. I literally had the old controller out and the new one in within 5 minutes. I will look at etrailer first for any of my trailering needs.
This brake controller has to be unplugged when not in use or it drains the battery in a few days. I had to have a electrical test done in my vehicle ($XXX). The etrailer tech said the test was done incorrectly. The Chevy dealer claims it was accurate. I’m left with a problem.
Needed a brake controller I could rely on because I was pulling my camper to a site at the top of a 25% grade within a few days. Unit plugged right into the harness for the factory brake controller (with the adapter cable) on my 2014 Ford F-150,and worked perfectly. Bluetooth connectivity works through the app (rather than through the phone's "settings" icon),and connects instantly. I'm very pleased with this product.
Second time I have ordered parts for towing my trailer. Product was a snap well 2 snaps to install and works perfectly. Allows me to move my brake controller between both my vehicles. Used customer service this time as well and was extremely satisfied. Staff was knowledgeable, kind, and friendly.
As first time truck and pop-up trailer users, we initially purchased a cheaper brake controller that required drilling the dash. This is a new truck, so we decided to switch and spend more for the Bluetooth. etrailer was easy to work with for a return, and the Bluetooth brake controller is fantastic - so easy to use with our new trailer!
I really wanted a trailer brake controller that I didn’t have to stick an ugly knob/box hanging off my dash. This was my solution and it works perfectly. Plugged right into my Honda Ridgeline existing plug, and easily connected to the app on my phone. Nice setup.
Plug and play for GM trucks, very easy to hook up to the brake controler. Watch the instalation videos to see what terminal it plugs into on the vehicle.
Made brake controller install ridiculously easy. Thanks Etrailer.com
Micheal M.
8/6/2021
Made the installation of brake controller super easy. Absolutely worth it. I wouldnt do it any other way after using this.
Given the fact that I only planned to tow my travel trailer one way up to the lake, I wanted an inexpensive brake controller. I looked online and in stores, and they were all over $100. When you added in the wiring. The controller I purchased from E-trailer only cost $49.99 including the wiring. I simply plugged it in, and after a short test tow, it works great. Took about 15 minutes to install. I'm very satisfied with my Curt brake controller. Got it in 3 days after ordering. Arrived fast, installed fast, and works great at a great price. What more can you ask? I'll be ordering from E-trailer in the future. Thank you.
Great price and prompt order processing. Controller mounting kit and harness made for a very easy install; about 20 minutes. Unit worked without any problems on a recent 300 mile trip with a horse trailer. Went over some fairly steep inclines in the Blue Ridge area of Virginia. Chose Curt Tri-flex controller over the more expensive brands because two of the three trailer dealers in the area carried those units as their default controller. The unit has all the braking functions without the fancy screens and interfaces. Found that I rarely looked at the controller display and the discrete black box worked for me.
I was looking for a trailer brake controller that did not require a permanent mounting to the dash or center console of my 2020 Jeep Grand Cherokee Trailhawk. I initially considered the wireless bluetooth controller from Curt Echo that plugs directly into the 7-pin outlet next to the tow hitch. However, reviews from individuals that tow RV trailers identified that particular option prevents the 12v battery on the trailer from charging off of the TV while connected. This would limit the RV utilization during long trips involving boondocking.
The Curt Echo under-dash controller seems to solve that problem and uses the same user interface as the Curt Echo.
Easy to install and operate; problem solved!
Easiest install ever !
Plug and play. App is easy understand and use.
My favorite is with the app and on selected active profile you can see the amount of brake amount is being applied to the trailer when the vehicle brakes are applied. I also install the manual override button. FYI: you don’t need the app on your phone open for the controller or the manual override button to work. Also another nice feature of the manual override button is the size about the size of a quarter, uses a CR2032 battery and the battery level is displayed in the app.
The adapter is as advertised, although I have an older brake controller that I had to do a small amount of wire splicing.
David
3/4/2023
Just fine.
Bought this trailer controller cable with a Curt Trailer Brake Controller. I dont know if it works or not. I installed this along with thr trailer brake controller at the same time. Nothing works. No lights power up on the controller. I highly respect Curt Products as I have many installed on my truck, but I'm disappointed with this combo purchase.
This was relatively easy to install under the dash of our 2021 Jeep Grand Cherokee, especially since ours has the factory Trailer Tow Package and therefore an existing pigtail connector ready to connect to the brake controller. The Curt wiring adapter made it super easy to connect the Brake Controller to the vehicle's wiring harness. The controller was easy to calibrate and worked seamlessly while we're towing a rented trailer. We used a dedicated (older) cell phone to operate it while we're towing to avoid any potential interference from other apps rather than using our regular phone on which we receive phone calls texts, etc. This was our first time towing a trailer and this easy-to-use Brake Controller helped make us feel safe and comfortable. Highly recommended.
Do not buy either the Curt Under-Dash or plug-in Wireless brake controllers until Lippert fixes the phone app. I’ve used both happily with the old ECHO Smart Control app. I could use the remote manual button with the phone app not even running. As one would reasonably expect the button talked to the controller directly via Bluetooth. The new OneControl Auto app must be running and in the foreground to use the manual remote! And the most recent version of ECHO Smart Control is non-functional, it just tells you to install OneControl Auto.
The break controller worked seamlessly. Profiles are easy to set up and it has very reliable Bluetooth connectivity with my phone. Installation was really easy on my Honda Pilot!
The Curt electric brake controller was the easiest installation I have ever had. I ordered the custom wiring adapter along with the brake controller; it all came with easy to follow instructions and it only took about 30 minutes to install the entire unit. I had done some checking around to get estimates from various companies which do the installations and their costs were around $300.00. The Curt unit including the adapter wiring was $**.00 and a very easy install. I used the brake controller during a recent camping trip on which I was pulling a 24 foot camp trailer. The controller worked great and I could easily control the trailer in some extreme mountainous terrains in Wyoming.
Pete D.
7/28/2017
Still works great after a year no problems at all.
Associate was very helpful email several options and price that l could choose Received order in timely manner was easy to install less than 10 minutes Will definitely use these guys again for towing needs
Pluged in perfect, absolutely recommend
Fit my 2005 2500 4x4 6.0 Chevy Silverado and triflex next controller and worked perfectly.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Bill B.
6/9/2015
Im still using the above items and have had no problems with them. Thanks.