Q: Brakes lock up during driving, if the car is stopped fast

asked by on

While I'm driving, the brakes on my car lock up. It occurs during hard braking and especially if I drive on wet roads or if I am on a hill. It is very dangerous driving with this issue and I almost got into an accident. There are anit-lock brakes on my vehicle, I believe. I took the car to the mechanic, but he couldn't recreate the issue. Do you have any suggestions? I appreciate your help.

Hello. If the vehicle has anti-lock brakes, then it should not lock up like this. This will only occur if there is a sensor problem with the vehicle. I would start by installing a scan tool that can read the brake module information. Once this is installed, then I monitor the wheel speeds to see if they are correct. If they are, then it may have an issue with the yaw sensor. If you are not sure about the ABS, then you can turn on the key and see if there is an ABS light. If there is not, then the vehicle does not have ABS. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your brake system and make a diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. Brakes lock up during driving, if the car is stopped fast

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: Car jerks when putting in drive.

The jerking reaction when putting the vehicle into drive suggests that your transmission may be low on fluid. Automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...

Q: When ESC is on brake, drags and makes grinding noise. Started doing it with it off too.

Hello. It sounds like your ABS brakes are kicking in for no reason. This can happen if the tone ring that the sensor reads is broken or filled with debris. I would recommend having all four of your wheel speed...

Q: Codes not reading on car.

If the onboard computer can't communicate with your scan-tool it could be a few different problems, it could be that the on-board computer isn't getting the proper power or grounds, this would also explain the no-start. Have a certified mechanic...

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...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...