Skip the auto shop - Our mechanics make house calls

Q: Brake light sometimes on

asked by on

The brake light comes on sometimes. Do I need to have the brake light switch replaced?

Hello! If you are referring to the taillights, the brake light switch may be faulty. I suggest having a technician check the break light switch for excessive wear at its contact point. If you are referring to a brake light on the dashboard, a common cause of that light coming on and off is low brake fluid. If the fluid is low, I suggest refilling the brake reservoir, then checking the braking system for leaks. You may want to have a certified technician inspect your brake light switch and replace it, if deemed necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Transmission won't shift gears

Hi there, thanks for writing in. There are multiple causes of an automatic transmission that won't shift properly. Failed shift solenoids can cause this condition, but unless the problem was properly diagnosed, it's possible that it was a guess. It...

Q: How do you lock the doors with the power door lock switch?

Your car offers a number of different ways to lock and unlock the doors. You can use the remote, or manually lock each door. You can also use the power door lock switch. Here’s how to operate it: Press...

Q: My third break light comes on when I apply the brake pedal, but my two main brake lights dont

Hello. Thank you for writing in. The working brake light is known as the center high mount stop lamp. It is wired differently from the normal brake lights in order to prevent them from all going out at once. The...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...