How to Program a Car Key Modern cars have more than a key to start the engine. They also include a remote to lock and unlock doors. Key fobs have to be programmed to work properly. Certain keys for cars can be preprogrammed by the owner, however it is recommended https://autolocksmith57859.weblogco.com/29318548/what-is-car-key-programing-history-of-car-key-programing-in-10-milestones