How to Program a Key The majority of new keys for modern cars have to be programmed to work. This can be done by a dealer's parts department or a professional locksmith using the correct tools. Key programming is required in two scenarios when an additional key is added, or https://g28-car-keys75273.blogmazing.com/28799217/15-shocking-facts-about-car-key-programing-that-you-never-knew