The Anti-lock Braking System (ABS) is designed to prevent your vehicle from skidding under heavy braking loads . The Anti-lock Braking System reduces the brake pressure as the wheels begin to lock to prevent skidding . ABS does not reduce the braking distance , It reduces Just from your chance of skidding . ABS may actually increase braking distance on some surfaces . [ ABS - Anti-lock Braking System , Braking and Stopping , Part D - Vehicle on the Road , Rules Manual ACT route]