Symptoms of a Bad or Failing Brake Light Switch

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The brake light switch is the electrical switch that is responsible for activating the brake lights. When the pedal is pressed, the brake light switch makes contact, and the the brake lights are illuminated. While the exact designs of brake switches can vary, they all serve the same purpose of activating the brake lights when the pedal is pressed. As the brake lights are what alerts the drivers behind you that you are slowing the vehicle, the brake lights and the switch that activates them become inherently important to vehicle safety. When the brake light switch does fail, usually the vehicle will produce a few symptoms that can alert the driver that a problem has occurred.

Brake lights stay on

One of the symptoms commonly associated with a bad brake light switch are brake lights that stay on at all times. If the brake light switch shorts internally it may cause the brake lights to stay illuminated, even when the pedal is not being pressed. This will cause the brake lights to burn out sooner than they should, as well as create a parasitic drain on the battery.

Brake lights do not function

The other symptom commonly associated with a bad brake light switch are brake lights that do not function at all. If the switch fails, it will not be able to activate the lights when the pedal is pressed, and as a result the lights will not function.

Because brake lights are what alert the vehicle’s behind you that you are slowing, if there is any problem with the switch that activates them, the overall safety of the vehicle is compromised. For this reason, if you suspect that your vehicle’s brake light switch may be bad or failing, have the brake lights inspected by a professional technician, such as one from YourMechanic, to determine if you need a brake light switch replacement.


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Recent Brake System Inspection reviews

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YourMechanic Brake System Inspection Service

Average Rating

4.8/5

Number of Reviews

205

Rating Summary
189
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5
189
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5

Juan

8 years of experience
67 reviews
Juan
8 years of experience
Audi Q5 - Brake System Inspection - Raleigh, North Carolina
Juan was fantastic! Upon arrival, I learned it was the rear brakes that needed replacement - not the fronts as I initially scheduled. Juan was happy to return the pads and rotors he brought and get the ones necessary. Juan went out of his way to correct an issue that I caused, proving he has stellar customer service skills.

Joshua

31 years of experience
2 reviews
Joshua
31 years of experience
Honda Accord - Brake System Inspection - Discovery Bay, California
Extremely professional, thorough and honest. Booked to replace front and rear brake pads. Joshua noticed that front pads were still good and didn't charge for it. Work was top quality. Definitely recommend.

Pierre

8 years of experience
42 reviews
Pierre
8 years of experience
BMW 740iL - Brake System Inspection - Weymouth, Massachusetts
Absolutely Grateful for the knowledge he had, the many small things he pointed out to me, that ment a lot. Looking forward to making sure the gets exactly what it needs, for me to enjoy it! Thanks Again! :Mark C. Pierce 98 BMW 740 il

Helder

31 years of experience
28 reviews
Helder
31 years of experience
Dodge Durango - Brake System Inspection - Attleboro, Massachusetts
Very nice guy, he’s worked on my car twice so far and he’s been great. On time, and very professional

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