How you program Mazda 2 key?

To program a Mazda 2 key, you'll typically need to have a working key and follow a specific sequence involving the ignition. Insert the existing key, turn it to the "ON" position, then off, and repeat this process several times until the security light blinks. After this, insert the new key, turn it to the "ON" position, and wait for the security light to stop blinking, indicating successful programming. If you don't have a working key, it's best to consult a Mazda dealership or a professional locksmith for assistance.