Key Programming Car Keys Most dealerships and brick and mortar locksmiths have tools that can assist you in programming replacement keys or restore immobilizer data. These tools are typically bidirectional OBD-II units. Insert a new, blank key and turn the ignition on to the "on" position, without starting the car. https://carlocksmiths62791.humor-blog.com/28650423/the-one-car-key-reprogramming-trick-every-person-should-learn