Skip the auto shop - Our mechanics make house calls

Q: Brake light won't go off

asked by on

My brake light won't go off.

Hello! The brake light staying on can stem from something as simple as low brake fluid. However, on your particular vehicle the brake light will commonly come on due to a fault in the ABS system controller module. The module tends to develop these faults in old age. A well trained technician such as the staff YourMechanic provides will be able to use an ABS scan tool to help determine if this is the issue. However, computerized components won’t always present its faults through the use of a scan tool. If no computerized faults are present it is recommended that all of the related brake system hardware components are checked. If all hardware checks out OK the ABS module is likely the problem. As said before the modules don’t always present its faults through testing. An inspection of the brake light and the brake hardware will help further determine if the module is in fact at fault.

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!
  1. Home
  2. Questions
  3. Brake light won't go off

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: advancetrac and abs light on after cv axle replacement

This may be related to faulty wheel speed sensors which are located at each of the four wheels. These sensors monitor wheel speed which is relayed to the ABS system. When the ABS system detects an abnormal speed for the...

Q: Brake Lights don't work

If both of these features quit working at the same time, you may just have blown a fuse. If neither one of these are related, the problem may be two separate ones. The power locks are controlled by a...

Q: Key won't go back into the ignition

Hi. It sounds like either the key, lock cylinder or both got damaged. If you need further assistance, I recommend you have a mechanic, like one from YourMechanic, inspect the ignition system on your vehicle and replace any damaged parts....

Related articles

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.
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.