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<h2>What does a turn signal switch do?</h2>
&nbsp;An automotive turn signal switch is a component in a car's steering column that enables the driver to indicate the direction in which they intend to turn or change lanes. When the driver moves the turn signal lever up or down, it activates a switch that sends an electrical signal to the car's turn signal lights, causing them to flash on the front and rear of the car to indicate the intended direction of the turn or lane change. In addition to indicating the direction of the turn, the turn signal switch also cancels the signal automatically after the turn is completed or when the steering wheel is straightened. The turn signal switch is an important safety feature in a car as it alerts other drivers of the driver's intended maneuver, reducing the risk of accidents or collisions.
<h2>Turn signal switch replacement</h2>
Replacing a turn signal switch is a task that may be required if the switch fails or malfunctions, causing the turn signals or hazard warning lights to stop working. It's important to ensure that the new switch is compatible with the vehicle's make and model and is of high quality to ensure safe and reliable operation.
While replacing the turn signal switch can be done as a DIY project, it can be a complex task that requires mechanical skills and knowledge. If you're not confident in your ability to perform the task, it's best to seek the assistance of a professional mechanic.&nbsp;You can refer to these steps when you need to change the turn signal switch:
<ol>
<li>Disconnect the battery</li>
<li>Remove the steering wheel cover</li>
<li>Remove the old turn signal switch. You may need to use a screwdriver or socket wrench to remove the screws.</li>
<li>Position the new turn signal switch in place and secure it using the mounting screws. Reconnect any electrical connectors that were removed earlier.</li>
<li>Once the new turn signal switch is in place, reattach the steering wheel or column cover, ensuring that all screws or clips are properly secured.</li>
<li>Finally, reconnect the negative battery cable to the battery and test the new turn signal switch by activating the turn signals and hazard warning lights.</li>
</ol>

Turn Signal Switch

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Air Filter Box

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Air Flow Sensor

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Electric Vacuum Pump

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Engine Air Filter

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Intake Manifold

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Intercooler

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Oxygen Sensor

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Pressure Sensor

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Turbocharger

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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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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 Line

Oil Filler Cap

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Oil Filter

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Oil Filter Housing

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Oil Level Sensor

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Oil Pan

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Oil Pump

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Oil Pump Pickup Tube

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

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Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Ignition Coil

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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

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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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Temperature Sensor

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Turbo Hose

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Fuel Line Kit

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Fuel Pump

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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.

Kia Optima Turn Signal Switch