What does an Anti-Lock Braking System (ABS) do? Do you currently have car insurance? Insurance is mandatory to drive in Minnesota Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question What does an Anti-Lock Braking System (ABS) do? Answers Allow the rear wheels to lock up Allow all wheels to lock up Help prevent wheel lockup Alert other motorists when you are braking Explanation 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. This questions appears in the following tests: Alabama Tank Arkansas Class A Knowledge Test District Of Columbia Passenger Georgia Class B Knowledge Test Kansas Class A Knowledge Test Kansas Tank Kansas Passenger Massachusetts Class B Knowledge Test Minnesota Tank Montana Class A Knowledge Test New York Class B Knowledge Test New York Passenger North Carolina Class B Knowledge Test Oregon Class B Knowledge Test Texas Passenger