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No big box sticking out to bang your knee. The Curt Echo Under-Dash Bluetooth Brake Controller tucks the main unit out of sight beneath the dash, measuring just 3-3/8" long x 3" wide x 7/8" thick. It stays secure with included adhesive and zip ties, leaving your interior uncluttered and modern. You control everything from your phone while enjoying a clean factory look.
Everything you need for trailer braking is right in your hand. Through the OneControl app, you can adjust max output, set braking sensitivity, and apply manual override—all via Bluetooth. A bright brake output ring shows how much power is applied, and settings stay stored even if Bluetooth disconnects. The app runs on Apple 5.0 and newer or Android 4.3 and newer devices. Save multiple trailer profiles so you’re ready to go no matter which trailer you hook up.
The built-in 3-axis accelerometer senses how fast your tow vehicle slows and sends matching power to the trailer brakes. Tap the pedal lightly and the trailer eases in; brake hard and it digs in firmly. This proportional setup works with trailers with 1 to 4 axles (8 brake assemblies) using electric trailer brakes. The result is even, confident braking that protects tires, pads, and peace of mind.
Installation takes minutes thanks to the custom-fit adapter that plugs directly into the factory brake control port under the dash. Once connected, pairing the Echo to your phone via Bluetooth takes about five seconds. An LED on the unit turns blue when paired and green when calibrated, giving you a clear visual cue that you’re ready to tow.
Reverse polarity and short-circuit protection guard both your trailer and wiring system. Diagnostic LEDs on the main unit make troubleshooting straightforward if you ever need it. Once you’ve saved your brake settings in the app, they remain active even if your phone disconnects—so braking stays consistent every mile of the trip.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Ratings & Reviews
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.
Dave
7/29/2016
The wiring adapter I purchased worked perfect and the install was simple, thanks
Pat V.
8/3/2020
Works very well.
Kevin
9/6/2016
Flawlessly
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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?