Skip the auto shop - Our mechanics make house calls

Q: When replacing the brake switch, why would the 3rd brake light work and not all 3?

asked by on

When replacing the brake switch, why would only the third brake light work and not the other two

A: It is possible that both of the brake light...

It is possible that both of the brake light bulbs are out. It is also possible that the other two brake lights are on a separate fuse from the third brake light which could cause the third brake light to work separately from the other two. I would recommend having a certified technician take a look at a wiring diagram to see the brake light circuit layout. This will help the technician to determine the cause of the brake light issue.

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: Remove alt. Lower bolt to long to come out..

You will have to disconnect the coolant pipe mountings to move it out of the way to get the alternator out of vehicle. You will need to loosen all four bolts that hold the alternator to the engine and then...

Q: TCS off and brake light on. Slip and speed monitor are not working

Hello. If multiple electronic systems are not working in your vehicle after hitting a bump, it is possible that some serious damage has occurred to the vehicle that will need to be checked. I would recommend having a mechanic assess...

Q: Oil light comes on when idle

I would recommend checking the oil level. Sometimes when an engine is just slightly low, the oil light may come on at idle simply due to the lack of oil pressure when the motor is not working as hard. Be...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.