When a vehicle is started: Question When a vehicle is started: Answers The brakes should be locked up. Warning lights should turn on, then quickly turn off. The coolant temperature should decrease. The hood must be open. Explanation After starting a vehicle's engine, you should see the warning lights and buzzers go out right away. If they remain on, there is something wrong with your vehicle. This questions appears in the following tests: Mississippi Class B Knowledge Test Nevada Class B Knowledge Test South Dakota Tank
