How to Program a Car Key Modern cars come with more than a key to start the engine. They also have a remote that can lock and unlock doors. These key fobs must be programmed in order to work. Certain keys for cars can be preprogrammed by the owner themselves https://carlocksmith79467.educationalimpactblog.com/51600601/car-key-programing-tips-from-the-best-in-the-industry