Key Programming and Data Transfer Key programming is the process used to make a new key work. This process is typically done by a locksmith or at a dealer. To program a new key, place it into the ignition, then switch the key to "On" position, without starting the car. https://g28-car-key-solutions49456.theisblog.com/29610959/5-common-myths-about-car-key-programer-you-should-avoid