What Are the Different Types of Key Programming? Car key programming is a method that lets you have an extra key for your car. You can program a key through the dealership or hardware shop, but it is typically a lengthy and expensive procedure. They are typically bidirectional OBD-II devices. https://auto-locksmiths80815.yomoblog.com/35523801/15-shocking-facts-about-car-key-programing-you-ve-never-seen