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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>
Ready to hit the road with confidence? Go with A-Premium! Don't let faulty trailer brake control switches hold you back! Upgrade your towing experience today with our top-quality selection at unbeatable prices. Whether you're hauling a boat, camper, or cargo, our reliable parts ensure safety and performance on every journey. Shop now and enjoy fast shipping and expert support&mdash;let&rsquo;s get you back on the road! Your adventure awaits!

Trailer Brake Control Switch

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Air Filter Box

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Air Flow Sensor

Air Intake Duct

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Air Intake Hose

Air Intake Manifold Actuator Control Solenoid

Air Intake Manifold Flap Adjuster

Air Intake Manifold Runner Control Sensor

Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

Intake Manifold Flap Actuator

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Intercooler

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Oxygen Sensor

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Pressure Sensor

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Throttle Body

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Throttle Position Sensor

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Turbocharger

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

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Camshaft Timing Gear

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Camshafts

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Engine Valve Cover

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Harmonic Balancer

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Timing Belt Kit

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

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Oil Cooler

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Oil Cooler Line

Oil Filler Cap

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Oil Filter

Oil Filter Base

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Glow Plug Relay Module

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Ignition Coil

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Ignition Coils & Spark Plugs Kits

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Ignition Distributor

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Ignition Starter Switch

Ignition Switch Actuator

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Engine Components & Accessories

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Auxiliary Water Pump

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Expansion Tank

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Expansion Tank Mounting Plate

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Fuel Cooler

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Radiator

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Radiator Hose

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Radiator Support Assembly

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Temperature Sensor

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Turbo Hose

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Water Coolant Pipe

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Water Outlet

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Engine Cooling

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Engine Mount

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Engine Mounts

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Catalytic Converter

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EGR Valve

Emissions Fluid Pump

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Exhaust Fluid Heater

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Exhaust Gas Temperature Sensor

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Exhaust Manifold

Fuel Tank Breather Valve

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Fuel Vapor Leak Detection Pump

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Nitrogen Oxide Sensor

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Secondary Air Injection Check Valve

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Vapor Canister Vent Solenoid

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Exhaust & Emission Systems

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Fuel Filter

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Fuel Injection Control Module

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Fuel Injection Pressure Regulator

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Fuel Injector

Fuel Injector Kit

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Fuel Injector Module Wiring Harness

Fuel Line Kit

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Fuel Pump

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Fuel Sending Unit

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Fuel Tank Filler Neck Pipe

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Fuel Tank Strap

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High Pressure Fuel Pump

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Idle Air Control Valve

Mechanical Fuel Pump

Oil Pressure Relief Valve

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Fuel Systems & Components

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

2008 GMC Sierra%203500%20HD Trailer Brake Control Switch

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