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How does a trailer brake controller work?

I’m helping a friend move, so we rented a trailer that could hook up to my truck. However, the trailer came with a brake controller and I have no idea how to use it. How does a trailer brake controller work?

Bonnie Stinson · Updated on Aug 30, 2023

Reviewed by Shannon Martin, Licensed Insurance Agent.

A trailer brake controller works by using the electricity from the towing vehicle (your truck, in this case) to help regulate the trailer’s brakes. They’re easy enough to install and use. Just follow these steps:

Park your truck and trailer on a level surface

Plug in the trailer wiring harness

Give the brake controller a few minutes to calibrate

Set the maximum brake output depending on the size of the load

Adjust the sensitivity level

Hauling a large trailer comes with its own driving challenges, so make sure your

covers any unexpected events. If you need to shop for better coverage, download the

and compare rates from top providers in just 45 seconds!

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