What is Car Keys Programming? Modern cars have a computer chip inside the key fob to communicate with the vehicle. This computer and key must be programmed to ensure that they are able to communicate. Depending on the car manufacturer, this can be done by a locksmith or a dealership. https://carlocksmith82946.blogdigy.com/find-out-what-car-key-reprogramming-tricks-the-celebs-are-utilizing-43843347