The Anti-lock Braking System (ABS) is a safety feature in vehicles designed to prevent the wheels from locking up during hard braking. This system allows the driver to maintain steering control while braking, especially on slippery surfaces like wet or icy roads. ABS works by rapidly pulsing the brakes, which helps to maximize stopping power without losing traction. When the ABS is activated, drivers may feel a pulsating sensation in the brake pedal. This is normal and indicates that the system is working to prevent wheel lock-up. Overall, ABS enhances vehicle safety and stability, making it an important feature in modern automobiles.