A computer system acronym. Your brake warning light goes on. The wobbling surface of a warped brake rotor will cause an uneven or pulsating action as you stop. The faulty action of the left brake causes stronger braking on the right side. The result, your car wants to dart in that direction.
ABS is an acronym for anti-lock braking system.
Anti-lock brakes are designed to prevent skidding and help drivers maintain steering control during an emergency stopping situation. Determine if your car has an anti-lock braking system by noting whether an ABS light flashes on your dashboard during ignition, checking your owner's manual, or asking your dealer. When you see your brake warning light go on, go directly to a technician to find out what's wrong and have it fixed. The harsh noise indicates excessive wear, leading to damaged drums or rotors and eventual brake failure. Questions like these are contained in the 90-page Car Care Quiz Book .