What is ABS?

ABS (Anti-lock Braking System) is a sophisticated computer-controlled system that modulates brake pressure during hard braking to help avoid wheel lock-up and maintain steering control. When the wheels are beginning to lock, the computer causes the brakes to pulse more rapidly than is humanly possible. This allows the wheels to rotate rather than skid. When the ABS is engaged, it is not uncommon for the driver to detect a slight pulsation through the brake pedal. Subaru’s four sensor system monitors and modulates pressure at each wheel.