What is Car Keys Programming? Modern vehicles have a computer chip inside the key fob that communicates with the vehicle. This computer and key must be programmed to ensure that they know each other. This can be done either by a locksmith or a dealership, depending on the car manufacturer. https://g28carkeys01931.therainblog.com/28714620/what-car-key-reprogramming-will-be-your-next-big-obsession