Q: While pressing on brake pedal, car accelerated

asked by on

Intermittently the brakes in my car quit working. I have been to the dealership several times, but it wouldn’t happen for them while they had the car. One day while driving 30 mph, I depressed the brake pedal but the car just kept moving and would not stop. Because of this I rear-ended another car. Everyone was alright fortunately and the police filed their report. I decided to wait on the diagnostic test from the dealer before having the car repaired. They told me that it was not brake failure that caused the accident, but unintended acceleration on my part. That is not true since I was pressing on the brake pedal. Can you tell me what caused the brakes to fail, since I know I didn’t accelerate?

Hi there, gladly you are okay after your accident. Brake failure can be a result of several different things. This can range from a failing brake booster, to air in the brake lines, to worn brake pads. Based upon the limited information, it would be difficult to make a recommendation without further inspecting the vehicle for more information. If you would like a second opinion on the car, I suggest having an expert from YourMechanic come to your home or office to diagnose the brake system in order to pinpoint what is going on.

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. While pressing on brake pedal, car accelerated

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: The engine loses power after accident, warning lights on

The engine computer will need to be tested to see the codes received. There is a problem in the system that is causing the computer to go into failure mode and limit the throttle opening. Considering the fact that you...

Q: Brake lights don't work after replacing brake pedal switch

I can personally understand how frustrating it can be to try to get your brake lights working properly, and it looks like you have already put in a lot of effort to have it fixed! Having the information about your...

Q: A bunch of warning lights just came on following a minor accident

With the vehicle being involved in an accident, there can be damage to wiring and/ or sensors, particularly if the radiator was impacted in even the slightest. Make sure the coolant level is correct. Even with the level correct, there...

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 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...
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.