Key Programming Car Keys Most Brick and mortar locksmiths and dealership parts departments have tools to assist you in programming replacement keys or restore immobilizer data. These tools are typically bidirectional OBD-II devices. Insert a blank, new key and turn the ignition to the "on" position, without starting the vehicle. https://www.g28carkeys.co.uk/hertfordshire-auto-locksmiths-near-me/