Brake assist is a provision that increases braking power when the computer detects that the driver is making a panic stop. Research has shown that drivers seldom apply enough braking pressure in a panic stop, resulting in collisions that could have been avoided. Brake assist detects rapid application of the brake pedal and increases the assist pressure in the power brake booster. This results in greater braking force for a given pedal position, which might help stop the vehicle short of a collision. As soon as the driver lets up on the brake, even a little, brake assist releases. Originally included in luxury vehicles, brake assist is rapidly becoming common in more affordable vehicles with antilock braking systems.
Drivers may be wary of any system that “takes over” control of the vehicle, but in my experience, brake assist is minimally intrusive. Cars equipped with it simply seem to have very effective brakes.
Information for this was taken from Cars.com’s glossary, written by Joe Wiesenfelder.
See if your question has already been asked and answered
Your question has been successfully submitted to Ask.cars.com. It will now be reviewed by our editors and we'll answer it soon if we think it's a useful question. You will be notified via e-mail when the answer is posted. Ask.cars.com tackles your questions about new cars and the car-buying process. Unfortunately we can't answer questions regarding:
Have our experts answer any of your questions about new cars.
Email us at email@example.com