How Long Do Car Switches Normally Last?

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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Diana

18 years of experience
90 reviews
Diana
18 years of experience
GMC Terrain V6-3.6L - Defroster is not working - Hillside, New Jersey
Professional , knowledgeable.... explained in detail
Land Rover Range Rover Sport - Pre-purchase Car Inspection - Chatham, New Jersey
Diana was very professional, very communicative and extremely knowledgeable. Would definitely recommend her to anyone

Steven

21 years of experience
200 reviews
Steven
21 years of experience
Ford Expedition V8-4.6L - Defroster is not working Inspection - Irving, Texas
3rd time using Steven and have never been let down. He is very professional, knowledgeable, punctual, and friendly.
Nissan 300ZX - Car is not starting - Fort Worth, Texas
On the day of our scheduled appointment (made several weeks in advance) as luck would have it, the weather turned unexpectedly poor. As a result, I was afraid we might have to reschedule the appointment due to inclement weather (which would be totally understandable). However, Steven worked through these less-than-desirable conditions, which I definitely appreciated and admired his dedication - would recommend him to others without hesitation.

Joshua

27 years of experience
709 reviews
Joshua
27 years of experience
BMW 328i L6-2.8L - Water Pump - Danville, California
Joshua did not waste a second after showing up. Got to work immediately with the ground protection,engine draining and inspection of all pre purchased parts.a great asset to your company!
Nissan Xterra - Pre-purchase Car Inspection - Concord, California
Joshua was extremely professional. Punctual, efficient, knowledgeable and friendly. He did an excellent job.

Dave

23 years of experience
303 reviews
Dave
23 years of experience
BMW 528i L6-2.8L - Defroster is not working - Aptos, California
Dave is awesome!! He is always very clear on what needs to be done, researches if problems are consistent with car types, and is very trustworthy!

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