How to Program a Car Key Modern cars have more than just a single key to start the engine, they also include a remote to lock and unlock doors. Key fobs need to be programmed in order to work. Some keys for cars can be preprogrammed by the owner themselves https://car-locksmith46591.loginblogin.com/36021103/car-key-programer-it-s-not-as-hard-as-you-think