Q: My car battery is dead but the brake light on dashboard is on

asked by on

So my car battery is dead, but why is the brake light on my dashboard illuminated?

My car has 134000 miles.
My car has an automatic transmission.

Hello and thanks for writing in. Often times many dash lights will illuminate when the battery is dead, indicating that a particular system (in this case the braking system) does not have the proper voltage to it. This is inherently the problem any time a battery is dead as every system in the car draws a specific amount of power from the battery or car’s charging system. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car battery is dead but the brake light on dashboard is on

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: Its like my front wheels locked and wont go forward it will reverse but hear a grinding1994 Honda Accord LX

Hi there - you have listed some of the possible causes. Check transmission fluid first - easiest, and least expensive to fix. Low fluid would definitely cause lack of motion issues. The grinding noise you mention is not a good...

Q: Q: Warning lights on

The ABS light and brake lights indicate that there are faults stored in the Electronic Brake Control Module or EBCM. These faults need to be read out to determine the issues in the ABS system. Now it could be something...

Q: Car turns over but won't start an has poor compression. 2004 Chevy Cavalier

Hi there - just as an FYI, the cams turn at half crankshaft speed, so seeing them rotate slower than your eyes/brain expects them to is normal. First task is to check for problem codes - whether the Check Engine...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.