An antilock braking system (ABS) moderates vehicle brake pressure in emergency-stopping situations. Instead of applying sudden, constant pressure to the brakes, ABS rapidly pumps them. ABS prevents the wheels and steering from locking up, causing the vehicle to skid and the driver to lose control. Locked wheels increase stopping distance and inhibit the driver from steering around the obstacle they’re trying to avoid.
Antilock braking systems became federally mandated safety equipment on all vehicles in 2012.
See also brake calipers, brake pads, brake rotors, electronic stability control
