Mirrors should be adjusted only after a vehicle has been driven for at least 15 minutes. Do you currently have motorcycle insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Mirrors should be adjusted only after a vehicle has been driven for at least 15 minutes. Answers True False Explanation Proper mirror adjustment is essential to the safe operation of a vehicle. Mirrors should be adjusted prior to the start of any trip.