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As a OneControl product, electronic sway control system will detect trailer movements not controlled by a weight distribution hitch, and quickly and safely applies the brakes. Compatible with electric trailer brakes only.
Features:
Specs:
California residents: click here
I haven't been able to determine if I should connect true course first or the Bluetooth brake controller first. I'm also not sure if the device is actually working. When I turn on the app, the controller says connected, but does it stay connected when i close the app?
I received my sway control and have it installed on my travel trailer but have not had a chance to go camping yet. I talked to Josh at Etrailer before I ordered. He was very helpful and was the reason for my decision! If it works as well as advertised, I will be very satisfied with my order!
I towed a loaded 5000 pound snowmobile trailer Normally a tractor trailer passing me would just move me all over the road. My Suburban and trailer instead stayed right on course. Would recommend this product. Also it was easy to install.

Gwendolyn Y.
2/13/2025
That definitely sounds like a peace of mind upgrade! I'm not too familiar with snowmobiles but they always look like a blast to drive. How long have you have been sledding for?


Install was easy. A little hard to line up with the top since the top has a slight curve. Plugged into the truck and the green light comes on, so I guess it is working. Won't find out until I actually tow the trailer to see how it works. My one question would be why the green light stays on and blinks after I unplug the 7 pin connector from my truck. It did go off after I disconnected the battery from the RV.
Super easy to install and great customer service.
Awesome product

Norman S.
8/31/2024
One year later it is still working great and I am glad I purchased it.
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Gwendolyn Y.
8/25/2025
Thank you for your review, Nicholas! It shouldn't matter which device is connected first. When you say you're closing the app, are you fully closing or just minimizing the app? Also, have you been noticing any sway issues when your towing and or does it feel like your trailer/camper is pushing your tow vehicle when you are applying the brakes? I look forward to hearing back from you!