Key Programming Car Keys Most dealerships and brick and mortar locksmiths have tools to 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. Repeat https://www.g28carkeys.co.uk/bmw-car-key-replacements-near-me/