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Big brake boxes take up leg space and clutter up the interior. The Echo Under-Dash stays hidden beneath the dash, leaving nothing exposed. The main unit measures just 3-3/8" long x 3" wide x 7/8" thick and mounts with included adhesive or zip ties. It’s out of sight, out of the way, and still easy to access for setup through your phone.
You don’t need a dash display or extra knobs to manage your trailer brakes. The Echo connects to your smartphone via Bluetooth so you can set max braking output, adjust sensitivity, and use the manual override right in the OneControl app. It works with Apple 5.0 and newer or Android 4.3 and newer. Even if Bluetooth drops, the most recently programmed settings keep working safely.
The internal 3-axis accelerometer senses how hard you’re braking and matches your trailer’s brakes to it. Light on the pedal means light braking on the trailer; hit the brakes harder and it responds in kind. That proportional control eliminates jerky stops and reduces wear on both tow vehicle and trailer brakes. It supports trailers with 1 to 4 axles and works with electric trailer brakes.
No splicing or wiring headaches here. The included custom harness plugs directly into the factory brake control port under the dash, then into the Echo unit. Once plugged in, calibration happens automatically—just connect your trailer’s 7-way, pair your phone, and you’re set to tow in seconds. Diagnostic LEDs on the box make setup checks simple.
Switching between different trailers is quick thanks to profile memory in the OneControl app. You can store separate braking output and sensitivity settings for each trailer and load them with a swipe before hitting the road. Whether towing one trailer or several, it keeps everything consistent and ready to go every time.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews
Jenny N.
3/18/2024
I reached out to Curt about the problems with the new app. They advised that the new app runs the same as the old app it has to run in the foreground unless they are using the button which is the same as the old app. They wanted to know if you were having trouble getting past that screen. Which type of cell phone do you have and which IOS are you using?
Mike R.
1/28/2015
The products worked great up until about a few weeks ago Thats when I sold the truck where the items were installed. lol. Really though, I very much liked how the products listed and purchased from etrailer.com were easy to find, fit exactly as described, and performed as needed. etrailer.com is always one of the first places I look when searching for items for my new truck.
Matthew
11/25/2024
Still 5 stars, lots of trips including a long tow of over 5000 miles. Consistently worked flawlessly. Mild annoyance that they changed the app but once I learned how the new app worked it continues to function flawlessly.
Nicholas
8/3/2020
Still working great
Rmt
5/20/2015
so far so good. no issues.
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Kyle
9/15/2026
Still working great after a year of use.