What is the function of the anti-lock braking system (ABS)?

The function of the anti-lock braking system (ABS) is to prevent the wheels from locking up during braking. When a driver applies the brakes hard, there is a risk that the wheels may stop rotating, leading to a loss of traction and control over the vehicle. ABS helps to maintain steering control by allowing the wheels to continue rotating instead of skidding.

When the system detects that a wheel is about to lock up, it automatically modulates the brake pressure on that wheel, pulsing the brakes rapidly and preventing the wheel from stopping completely. This pulsing effect allows the driver to maintain better control over the vehicle while braking, particularly in emergency situations or on slippery surfaces. As a result, ABS significantly enhances vehicle safety, especially during abrupt stops or when driving on wet or uneven terrain.

While the other options mention aspects related to braking system performance, they do not accurately describe the primary purpose of ABS. Increasing brake sensitivity, reducing braking distance, or assisting in parking are not direct functions of the ABS; rather, maintaining wheel rotation to ensure control during braking is its main objective.