Skip the auto shop - Our mechanics make house calls

Q: How does the brake assist system work?

asked by on

How does the brake assist system work?

A: Once upon a time, cars only had one braking...

Once upon a time, cars only had one braking system. When you pressed the brake pedal, the brakes would activate and slow down the car, eventually allowing you to stop it. Today, you have a number of different brake systems, including the brake assist system. Here’s how it works:

  1. When you press the brake pedal, the brake assist system kicks in. Its sole purpose is to make it possible to press the pedal with less force during emergency braking and achieve better braking performance.

Tips

  • When you press the pedal, you may hear a noise from the brake assist system. This is normal.

  • When the brake assist system engages, you may feel a slight movement in the brake pedal. This is normal.

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: Brakes make squeaking noise on 2006 BMW 530xi

Hello, thanks for writing in about your 2006 BMW 530xi. If the rear has been fully investigated and repaired, the squeaking sound is likely coming from the front. The sound may be from warped rotors, worn pads, or glazed friction...

Q: How do I display the average miles per gallon?

The Base Message Center keeps track of all of the functions your truck performs. This message center will tell you all about how your vehicle is performing. The Average Miles Per Gallon feature can show your truck's fuel economy. This...

Q: The power steering is making a grinding noise?

Hi there. If the power steering fluid is aerated, I would look to the power steering fluid supply hose fitting at the power steering pump. The inlet fitting o-ring is a fairly common failure and allows air to be drawn...

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...
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.