The display should show "SAFE" or "CODE" then revert to four dashes after 3 or 4 seconds at power on (if you haven't put a code in recently). Enter your code at this point (when the 4 dashes are shown), then press the smart symbol button to confirm the code. The radio should be activated. Easiest method: Contact your local dealer's service department for the code or to reset the car radio for you. Second method: Go to the automaker's website with your car's information and request the code. Third method: Rely on free or paid online resources and databases. This article explains the options for finding a car radio code. Dịch Vụ Hỗ Trợ Vay Tiền Nhanh 1s.

smart car radio code reset