Head checks should be done: 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 Head checks should be done: Answers Only when changing lanes. Only when turning. Frequently as a part of your normal routine. Explanation Frequent head checks should be a part of your normal scanning routine. Only by knowing what is happening all around you can you be prepared to deal with your surroundings.