Question When a vehicle is started, warning lights and buzzers: Answers Should stay on for several minutes. Should turn off within a few seconds. Should stay on until manually turned off. Should not come on. Explanation After an engine is started, the warning lights and buzzers for oil, coolant, charging circuits, and the Anti-Lock Braking System (ABS) should go out right away. Take a FREE Practice Test Now This questions appears in the following tests: District Of Columbia Knowledge Test Class A , Georgia Knowledge Test Class A , Kansas Knowledge Test Class A , West Virginia Passenger ,