What does an Anti-Lock Braking System (ABS) do?

Question

The purpose of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up when the driver brakes hard on a slippery surface.

Accepted Answer

Help prevent wheel lockup

Answer

Allow the rear wheels to lock up

Answer

Allow all wheels to lock up

Answer

Alert other motorists when you are braking