An access control system for controlling access to a vehicle and reconfiguring the vehicle to disable or enable operator smart keys is disclosed. An electronic controller in the vehicle receives signals indicating the presence of a master smart key in the vehicle. Once it determines that a master key...http://www.google.fr/patents/US20040263316?utm_source=gb-gplus-shareBrevet US20040263316 - Reprogrammable vehicle access control system
