US Patent 7548491 Personalized key system for a mobile vehicle

A wireless key system for a mobile vehicle includes a key fob with a controller, a microphone operably coupled to the controller, a memory operably coupled to the controller, arid a telematics unit operably coupled to a vehicle communication bus. Verbal commands received through the microphone initiate the controller to send a function message in accordance with instructions stored in the memory to the telematics unit that activates a function through the vehicle communication bus.