What is Car Keys Programming? Modern cars have a computer chip inside the key fob that communicates with the vehicle. This computer and key must be programmed so that they are able to communicate. This can be done either by a locksmith, or a dealer, depending on the vehicle manufacturer. https://auto-locksmith45887.blogspothub.com/28890238/it-is-also-a-guide-to-car-key-reprogramming-in-2023