How to Program a Car Key Modern cars come with more than a key that can start the engine. They also come with a remote control that can lock or open doors. These key fobs have to be programmed in order to work. Some keys for cars can be preprogrammed https://g28-car-keys14338.blog-mall.com/29928611/10-erroneous-answers-to-common-car-key-programer-questions-do-you-know-which-ones