How to Program a Car Key Modern cars use more than a key to start the engine. They also come with a remote that can lock and unlock doors. Key fobs need to be programmed in order to work. It is possible to pre-program certain car keys by the owner, https://autolocksmiths33772.uzblog.net/15-funny-people-who-are-secretly-working-in-car-key-programer-43563020