Skip the auto shop - Our mechanics make house calls

Q: Brake light coming on.

asked by on

The brake light comes on randomly.

A: Brake lights that come on intermittently ar...

Brake lights that come on intermittently are likely caused by a faulty or misadjusted brake switch. The problem could also be caused by a short in the brake light wiring. A trained technician, like one from YourMechanic, will be able to diagnosis and repair your brake lights saving you the hassle.

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: I can't get the axle out of the driver side hub.

The axle constant velocity (CV) joint has splines that go through the outer hub assembly secured with a large nut. Sometime when the CV axle needs to be removed the splines of the CV joint will rust and corrode then...

Q: Car will not start. No turning of the motor but lights come on. It will randomly start sometimes. ATF or coolant is leaking

If you have a voltmeter and can reach the starter, you can test for activation voltage at the solenoid. If you have at least ten volts on terminal 50 when the key is turned, then you will probably need a...

Q: Brake lights not working

The switch should be tested before buying a new one. The switch is taken out and checked for continuity. If the switch checks out, then the fuses should be checked also. If the little metal strip is broken, it needs...

Related articles

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...