Skip the auto shop - Our mechanics make house calls

Q: Brake lights do not illuminate

asked by on

The other day I was informed that my brake lights are out. Went ahead and changed the fuse, was replaced with a brand new fuse from the store. That didn't work, we checked the bulbs, they looked good and illuminated with headlights on. Figured the brake light switch was the issue so that was replaced with a brand new one... still I have no brake lights. Any ideas?
My car has an automatic transmission.

Hi there, thanks for writing in.

You first need to check every fuse in the car, not just the ones for the brake lights. Sometimes fuses can have power over something not listed on the fuse cover. If all are good, then check for power in the brake light circuit at the fuse, and see if you’re getting any power there. If you are, then check at the connector to the brake light bulb holder, and see if you have power there with the brake pedal depressed. If there is power there, then it could be a failed bulb holder. If there isn’t power there, then it could be a bad connection or broken wire somewhere between the fuse and the brake light bulb, or it could be another failed brake light switch, though that is pretty unlikely. My guess is that there is another blown fuse somewhere, or there is a wiring issue somewhere in the car. This can become very tedious and time consuming, and is often a job best left for the professionals. You can contact a qualified technician through YourMechanic, who will come to your home or office and diagnose your electrical 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: Speedometer and odometer and trip mileage stopped working

The back of most dashboards is an electrical relay, which supplies power to individual components inside the dash. If all of these systems are not functioning, it's possible that this electrical relay is damaged; or perhaps an electrical wire /...

Q: Shifting problem?

What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle...

Q: While driving my speedometer reads 80 mph when I kno I'm actually driving 45 mph

Chevrolet has had many issues in the past with this problem and the cluster may have to be tested and repaired or replaced. The dealer will have the specialized equipment to test the cluster for you and may have a...

Related articles

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...
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.
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.