Q: Q: why is battery and brake light on?

asked by on

Why is my battery and brake light on?

My car has 144500 miles.
My car has an automatic transmission.

Hello, thank you for writing in. The battery light and brake light often illuminate together when your alternator has failed. You can verify this easily by scanning for diagnostic codes. These are codes that pertain to the warning lights, and tell you why they have illuminated. Scanning for codes can be done by a technician or at most automotive parts stores. From there, you can take corrective action. For more help with testing or repairing the issue, contact our service department to schedule an appointment.

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. Q: why is battery and brake light 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: Engine knocking is making me concerned

If the noise is coming from your engine or transmission, it should be diagnosed as soon as possible and you should limit driving until you have it checked. You could contact YourMechanic to come to you and give a thorough...

Q: My oil light came on different times the last few days what could it be

The first thing to do is to check the engine oil level to see if it is low on oil. If low then top it off. If oil is full then you will need to have the oil pressure checked...

Q: Door not locking or unlocking

The actuator is the most likely cause of the problem; if the actuator is bad, it may prevent the door from locking, or unlocking. I recommend that you have a mechanic, such as one from YourMechanic, run an inspection to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.