Skip the auto shop - Our mechanics make house calls

Q: Faulty brakes cause unpredictable stopping distance

asked by on

If I’m driving on a bumpy road at a speed of at least 40 mph, I can not predict how far my brakes will stop the car. The stopping distance is totally unpredictable. I think it is due to a faulty brake system. However, when I got a diagnostic test at the dealership, they were unable to duplicate the problem - and as everyone knows, they won’t do anything without experiencing it themselves. Faulty brakes are a serious danger! This problem could cause an accident. Since the dealership couldn’t help me, could you please advise me on what I should do?

Hello. Bumpy roads can cause the ABS system to have trouble working correctly. Bumpy roads cause changes in the speed of the wheels which is the main input for the ABS system. If computer is not reading correctly then the brakes will not work correctly. This is a normal characteristic of all ABS systems. If the ABS light is not coming on indicating any faults then this is something that you may have to live with. If you’d like a second opinion on this, contact one of our mobile experts who can diagnose your brake system and fix it accordingly.

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

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: My engine light came on code shoed P0037 its a Lexus is300 is it just changing the o2 sensor?

P0037 is an oxygen sensor code referring to bank 1 sensor 2. This is the right hand side of the engine and the second sensor on that side. The code may be caused by the catalyst on that side or...

Q: How do I set the parking brake?

Your car’s parking brake is used to prevent it from rolling when parking on a grade. It should be engaged every time you park the car, even if you don’t think the slope is severe enough. Of course, you need...

Q: Sunroof does not open

Unfortunately, there can be a variety of reasons that can cause your sunroof to not open in your Lexus. It could be a simple cause, such as a blown fuse, a sunroof stuck in its tracks or possibly the motor...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...