How Long Do Car Switches Normally Last?

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Nearly all your vehicle functions are operated by switches of some sort. When you start your car, the ignition cylinder activates the ignition switch. When you open your car’s power windows, you operate a switch. When you activate the rear window defogger, you press a switch. A switch is a component that changes the electrical input of a device, whether that is on or off, increasing or decreasing.

No matter what function it operates, every button in your vehicle is a switch. Their purpose is to turn on or off a feature or perform an adjustment. Some switches, like radio buttons and power door lock switches, are used much more than others.

Switches are prone to failure depending on how much they're used. A few switches particularly susceptible to failure are:

  • The driver’s power window switch
  • The driver’s side power door lock switch
  • The ignition switch
  • The headlight switch

Though these switches are more prone to wear than others, there is no set life expectancy. It is very possible that a power door lock switch can be used several thousand times and never fail. The ignition switch can be cycled dozens of times per day over the course of decades and never needs to be replaced. Though there are some that require replacement more commonly, it does not indicate that you should expect to replace it on your car.

If you do experience any problems with one of the switches in your vehicle, no matter if it is the defroster or the audio system, have an automotive repair professional inspect and replace the faulty switch.


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Ben

39 years of experience
1113 reviews
Ben
39 years of experience
Ford Focus - Defroster is not working - Houston, Texas
thanks Ben!

Martin

27 years of experience
166 reviews
Martin
27 years of experience
Chevrolet Aveo - Defroster is not working - Goodlettsville, Tennessee
Very pleasant person to recommend. He was very professional and knowledgeable and explained everything. Very satisfied.

Jonathan

11 years of experience
144 reviews
Jonathan
11 years of experience
Chevrolet Silverado 2500 HD - Defroster is not working - East Providence, Rhode Island
Had very good experience, on time and communication was great.

Todd

11 years of experience
44 reviews
Todd
11 years of experience
Dodge Dakota - Defroster is not working - Beaverton, Oregon
Todd is a great help!

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