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Many brake controllers take up too much cabin space, but this one mounts flush to the dash and is only 1" thick. The trim, under-dash profile keeps it out of the way while still easy to reach. The included bracket and hardware make setup simple, and automatic leveling means you can mount it at any angle without compromising performance.
The TriFlex NEXT uses an internal 3-axis accelerometer that senses your vehicle’s rate of deceleration and matches it perfectly on the trailer brakes. That means when you brake lightly, your trailer does too; when you brake harder, it keeps up instantly. It works with up to 4 axles (8 brake assemblies) and supports electric brakes. The result is even braking across your whole setup without the push-pull or jerky stops that wear tires and rotors.
Getting the right brake feel depends on both trailer weight and road conditions. This controller gives you full control through two rocker switches—gain adjusts from 0.5 to 9.9 in 0.5 increments, while load control sets aggressiveness from 1 to 9. Together they let you dial in just the right amount of stopping force so the trailer stays balanced behind you whether cruising flat roads or descending a steep grade.
The large LED display shows braking power, sensitivity settings, and error codes all in plain text so you can check them with a quick glance. Brightness is adjustable and includes a night mode so it doesn’t glare while driving after dark. Continuous self-diagnostics run in the background, giving you early warnings for shorts or overloads before they become an issue.
The TriFlex NEXT guards your towing setup with multiple layers of protection—short circuit defense, polarity protection to prevent reversed wiring damage, and automatic sleep mode that kicks in after 5 minutes of inactivity to minimize battery drain. It also reduces power output during prolonged stops to keep trailer brakes from overheating, helping preserve components for the long run.
Alternate Instructions
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Mike L.
5/2/2026
Good deal Robert, thanks for the photos!
Claire H.
6/26/2026
Hey Ryan, I agree it does sound like your brake controller is losing power and causing it to restart. I would check your brake controller fuse to make sure it isn't blown. Or to make sure it's a 30-amp fuse and not a 20-amp fuse, sometimes a 20-amp fuse is installed from the factory.
Gwendolyn Y.
4/30/2026
That does sound frustrating for sure. What may be happening is if you don't have a trickle charger on your RV battery when it's sitting for a long period of time, the volts on the battery could be dropping too low and causes the brake controller to completely turn on resulting in needing to reset the settings.
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Heather A.
8/12/2026
The install looks great Dennis! What kind of trailer are you using this for?