When should a turn signal be canceled by a driver? 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 a turn signal be canceled by a driver? Answers Before entering a turn While turning After a turn is completed Explanation If your vehicle does not have self-canceling turn signals, be sure to cancel your turn signal after completing a turn. This questions appears in the following tests: Minnesota Class A Knowledge Test