When should mirrors be adjusted? Do you currently have car 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 When should mirrors be adjusted? Answers Before driving While driving After driving Explanation Mirror adjustment should be checked prior to the start of any trip. If your vehicle has a trailer, the trailer must be straight in order for the mirrors to be checked accurately. This questions appears in the following tests: Arizona Double Kentucky Tank Louisiana Tank Maryland Double Minnesota Passenger Oklahoma Class A Knowledge Test Oklahoma Class B Knowledge Test Oklahoma Passenger Oklahoma Passenger