Skip the auto shop - Our mechanics make house calls

Q: Two rear brake lights are not working. The top one is.

asked by on

Is the brake light switch connected directly to the brake lights? So that my issue is between the brake light switch and the bulbs? I have checked the brake light switch and power supply to it. They are fine.

My car has 260000 miles.
My car has a manual transmission.

A: Hi there. Having power to the brake light s...

Hi there. Having power to the brake light switch leads me away from a fuse related issue. Not knowing the model, makes it difficult to know whether the brake light switch is two wire or multiple wire. If it’s a two-wire switch, we know the switch is working, as the third light works. This would lead me to believe the junction for the stop lights may have a problem or the brake light bulbs have burnt.

For a multiple wire switch, the upper and lower brake light bulbs may have separate circuits in the switch, and the brake light switch may be at fault.

If you need more in-depth help, I recommend having your vehicle’s brake light problem diagnosed and repaired by a certified technician, such as one from YourMechanic.

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!

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: Cannot shift into overdrive

On the SC300, when the shifter is in the 3-D position if the shifter is to the right, then the over shift function is enabled. Once the engine reaches a combination of speed and load the transmission will automatically shift...

Q: Brake lights don't always work

It sounds like you are having an issue with your brake light on/off switch. The switch is located under the dash high on the brake pedal bar. Sometimes these switches just get pushed out of place and need to be...

Q: Driver's side headlight keeps burning out. High beams and running lights are fine.

Hello. Thank you for writing in. There are several reasons why your bulb would continue to burn out prematurely. The first thing you want to check is that you are wiping any oils from your hands off of the bulb....

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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.