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Most brake controllers still use bulky boxes that take up space near your knees, but this one mounts completely out of sight. The main unit measures just 3-3/8" long x 3" wide x 7/8" thick, and it tucks neatly under the dash using the included adhesive pad and zip ties. You control everything from your smartphone through Bluetooth, so there’s nothing cluttering up the interior.
All adjustments happen right in the OneControl app. From your phone, you can change max output, fine-tune sensitivity, and even apply manual override with the big orange on-screen button. It also shows live brake output on a circular gauge so you know exactly how much power is going to the trailer brakes. Once paired, it stays connected automatically, and if Bluetooth ever drops out, braking continues using the most recent settings for a smooth, safe stop every time.
Inside the Echo is a built-in 3-axis accelerometer that senses how fast you’re slowing down and matches the trailer’s braking accordingly. Light pedal pressure means light trailer braking; hard stops get instant, firm response. That proportional control keeps everything steady—no jerky push-pull feeling—and reduces wear on both tow vehicle and trailer brakes over time. It works with 1 to 4 axles and supports electric trailer brakes.
Hooking it up takes just minutes because it plugs directly into your vehicle’s factory brake control port using the included custom harness. No cutting or splicing wires. Once connected, pairing over Bluetooth only takes a few seconds, and calibration happens automatically after plugging in your trailer’s 7-way connector. A color LED confirms each step—blue for pairing, green when ready to tow—so setup is straightforward from start to finish.
If you tow more than one trailer, you can store multiple profiles within the app and switch between them with a quick swipe. Each profile keeps its own max output and sensitivity settings so you can go from one trailer to another without re-tuning anything. That makes this controller an easy fit for anyone who swaps trailers often or manages a small fleet.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews
Easy to install once you dig out its connector from under the dash. H Ave the unit completely hidden.
I haven't installed this yet but it appears to be exactly what I needed. I can always count on Etrailer for my accessories
The brake controller video was very helpful. I made my choice, ordered it and received free of confusion. Thanks go to etrailer.
Installed the controller under the dash out of the way. Downloading and setting up the app was easy. I have set a profile for my trailer loaded and empty. This is a nice feature.
The app stays open while driving, so the manual brake button is visible, and easy to access, if needed.
Worked as described, harness is a little on short side so your limited as to were you can mount brake controller
The Curt Echo is now on my Nissan Armada and works perfectly. It was an easy hookup with the supplied harness and does its job.
Made it easy to adapt to the vehicle ha rness.
Don’t even know it’s there, set it and forget it.
This controller came ready to use out of the box, Watched a YouTube video on the installation just to be sure and installed it myself in about 1/2 hour [I work slow} We used it this weekend and it worked flawlessly, seems like it set itself up and just worked great
I have a 2015 Traverse with V92 Factory tow package. All I had to do was plug this controller into the vehicle harness with the supplied plug and wala, everything worked perfect. Amy placed my order and she was very helpful in choosing what controller I wanted. Good Job Amy!
This is the old obsolete model of Curt Echo which has to be installed under the dashboard. The newer version, which attaches to the electrical system in the rear of the vehicle, is superior and now preferred by most trailer owners. The above version should be taken off the catalog.
This is my first proportional brake controller. Stopping is much smoother without sacrificing safety. Communication by bluetooth makes for a clean installation.
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.
Right adaptor wiring for our brake cont roller!
Peggy
3/16/2019
Been working great after year!!
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. $[XX] later and this controller removed, I've not had any problems with the battery
This brake controller has to be unplugged when not in use or it drains the battery in a few days. I had to have a electrical test done in my vehicle ($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.
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.
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.
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!
This brake controller adapter harness fit exactly as described.
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David
3/14/2019
No issues with the product they are working great. Same as the day I installed them. Took a little time dialing the strength and how quick the brakes come on but overall very happy.