When should you check and adjust your mirrors? 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 you check and adjust your mirrors? Answers Before starting a trip While driving After a trip Mirrors do not need to be adjusted. Explanation The adjustment of mirrors must be checked prior to the start of any trip. This questions appears in the following tests: Illinois Passenger Massachusetts Class A Knowledge Test Massachusetts Class B Knowledge Test New Hampshire Class A Knowledge Test