Skip the auto shop - Our mechanics make house calls

Q: Malfunction with brake light sensor.

asked by on

My car keeps notifying me that my right rear brake light is not working. However, I took it to the gas station and the mechanic there said all of my lights were working. It seems there is a malfunction in the connection between the car and the light bulb.

These systems can be tricky. Also on European vehicles they sometimes have more lights than Americans are used to. It is possible that there is a bad connection that is causing this light to come on. However it is also possible that the employee at the gas station just didn’t identify that a bulb was burned out. I would ask for help from one of the mechanics at YourMechanic to take a look at your lights and identify what the issue is.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Malfunction with brake light sensor.

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: Warning lights flashed when passing another vehicle

The EPC (electronic power control) light indicates an error and is seen when there is a fault with the throttle body, traction control, gas pedal, or cruise control system. When the EPC and check engine lights are on, the car's...

Q: I've just had a new clutch pedal fitted and now my gears 1st and 2nd want go into gear when the engine is cold.

Hi there. Try using 75/90 Synthetic transmission oil in the transmission. This may help the transmission for the shifting issue. This is a normal condition during a break in period, however, with 100,000 miles on the transmission the synchronizers could...

Q: Air conditioner makes clicking sound when truck turns on, low air pressure unless max AC is used

When the engine turns on, if the A/C switch is off, the compressor clutch is not engaged so the only "noise" should be from the compressor pulley freewheeling. If the air flow is too low at the lower blower speeds,...

Related articles

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.