Key Programming Car Keys Most Dealerships and brick and mortar locksmiths have tools to help you program replacement keys or restore immobilizer information. These tools are typically bidirectional OBD-II units. Insert a new, blank key and then turn the ignition to the "on" position, without starting the car. Repeat this https://www.g28carkeys.co.uk/hertfordshire-auto-locksmiths-near-me/