What is Car Keys Programming? Modern vehicles have a computer chip inside the key fob to connect with the vehicle. The key and the computer have to be programmed so that they know each other. Depending on the car manufacturer, this can be done by a locksmith or the dealership. https://g28carkeys01931.therainblog.com/28742396/5-car-key-reprogramming-projects-that-work-for-any-budget