Skip the auto shop - Our mechanics make house calls

Q: Brake warning light comes on during quick change of speed

asked by on

Hi, I'm having some problems with the braking system in my car. The dashboard shows the brake warning light on, in situations when I try to accelerate or decelerate quickly. The light would turn off after a couple of minutes, but I would like to know why it comes on. Do you have any idea why this happens?

The brake fluid in the brake master cylinder reservoir will start to go down as your brake pads wear down and the fluid may get low enough to cause the low brake fluid sensor to turn on the dash light when you brake or accelerate. Check the brake fluid level and top it off to the max line and you should be okay. I would recommend having the brakes inspected to see if they are in need of service.

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: Whining noise. 1999 Chevrolet Tahoe

Hi there. If you are only hearing the noise in those speed ranges, then you may have bad overrunning clutch needle bearings inside the transmission. In this case, the transmission will need to be overhauled and repaired. If you would...

Q: Air conditioner not turning on

Hello. The most common cause of a sudden AC failure is low refrigerant. Over time, the refrigerant leaks out and the system stops working once it is low enough. I typically start by checking the pressure in the system to...

Q: car shakes when put on brakes. is that rosters or pads? gonna need to get it fixed regardless

Vibration and/or shaking on application of the brakes is often due to faulty rotors (warped, or irregularly worn). If the rotors are replaced, of course the brake pads will have to be replaced as well. The recommended services to request...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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.