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A trailer brake switch allows the driver to manually activate the trailer's electric brakes independently of the vehicle's brakes. When the switch is pressed or slid, it sends an electrical signal through the vehicle's wiring harness to the trailer's brake system. This signal energizes electromagnets in the trailer's brakes, causing the brake shoes to press against the drums (or pads against rotors), slowing the trailer. The switch is often part of a brake controller, which can adjust the braking force to match the trailer's load and road conditions.
The switch provides additional control when towing, such as reducing trailer sway or stopping the trailer without overusing the vehicle's brakes. Many systems also integrate automatic braking, where the trailer brakes activate when the vehicle brakes are applied. Advanced features include proportional braking, which adjusts force based on deceleration, and breakaway systems that stop the trailer if it detaches. This setup ensures safer and more stable towing.
<h2>Do I have a bad trailer brake control switch?</h2>
<ul>
<li>No response: The trailer brakes do not engage when you press the brake pedal or use the manual override.</li>
<li>Inconsistent braking: The trailer brakes apply unevenly or erratically, affecting stopping performance.</li>
<li>Error codes: Displayed error codes related to the trailer brake system indicate a malfunction.</li>
<li>Burning smell: A burning smell or signs of overheating can signal a failure.</li>
<li>Physical damage: Inspect for visible damage, such as burn marks, frayed wires, or loose connections.</li>
</ul>
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Trailer Brake Control Switch

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Buy aftermarket 2013 GMC Sierra 3500 HD Trailer Brake Control Switch at A-Premium.com to upgrade your close partner 2013 GMC Sierra 3500 HD. Free Standard Shipping, fit guaranteed, up to 2-year warranty, and worry-free after-sale services of 90-day free return & 24/7 services. Order now!

2013 GMC Sierra 3500 HD Replacement Trailer Brake Control Switch From $49.99 | A-Premium.com

Trailer Brake Control Switch for 2007-2014 GMC Sierra 3500 HD

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2013 GMC Sierra%203500%20HD Trailer Brake Control Switch