How to Program a Car Key Modern cars have more than just a single key to start the engine, they also have a remote that can lock and unlock doors. These key fobs must be programmed to work. It is possible to pre-program some car keys by the owner, however https://autolocksmiths88970.myparisblog.com/29746480/how-to-tell-if-you-re-ready-for-car-key-programing