Skip the auto shop - Our mechanics make house calls

Q: Brakes randomly locking up.

asked by on

At random times, the brakes lock up for no apparent reason. I recently had the brakes and ABS module worked on.

A: Hi there. Your ABS system should keep the b...

Hi there. Your ABS system should keep the brake from locking up if it is working properly. With that being said, you may get different wheels braking at different times if the ABS unit sees the need to cycle the brakes at each wheel for better and safer braking. Some people feel like this is the brakes locking up. If the brakes are indeed locking up then there is a malfunction. If the ABS light is on then the system is turned off by the computer because of a malfunction. If the light is off then you may have an issue with a failing wheel speed sensor, yaw sensor, or even a mis-matched tire size. To diagnose this a mechanic would need to install a scan tool and monitor the inputs of the sensors to see if one or more of them are acting up. You should get some help from a certified mechanic that has the tools to do this, like one from YourMechanic.

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・Save up to 30%

Get a quote

What others are asking

Q: have a ex royal mail ford transit 06 plate and want to get the central locking on front doors back to original format

YourMechanic is based in the United States, so we do not have access to service information on your vehicle. I suggest purchasing a service manual so you can research what components are missing or not working properly. If all the...

Q: When I first drive my car, it stutters

Hello. If the vehicle has a hard time staying running when it is first started then it may have one of several issues. Most of the time this is the result of a leaking fuel injector or a failing fuel...

Q: ABS light on, rattling sound coming from the engine - 2005 Chevrolet Suburban

Due to this being a possible safety concern you will want to have this issue looked at as soon as possible. GM has several TSB's out for various ABS and stability system issues. All of these TSB's do have specific...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...