Key Programming Car Keys The majority of brick and mortar locksmiths and dealership parts departments have tools to help you program replacement keys or restore the immobilizer's data. These tools are usually bidirectional OBD-II devices. Insert an additional key and switch it to the on position, without starting the engine. https://g28carkeys63579.nizarblog.com/29404005/what-is-car-key-programmed-and-how-to-use-what-is-car-key-programmed-and-how-to-use