A method and a system are provided for dynamically updating voice recognition commands available for controlling a device in a vehicle. A receiver unit of a voice recognition system, located in the vehicle, receives a remotely transmitted broadcast signal. A processor of the voice recognition system extracts voice recognition data from a remaining portion of the broadcast signal and updates voice recognition commands stored in a memory unit, coupled to the processor, with the extracted voice recognition data. A voice input device of the voice recognition system receives a spoken command from a user. A voice recognition engine, coupled to the voice input device and the memory unit, determines whether the spoken command matches one of the stored voice recognition commands in the memory unit. If a match occurs, a recognized voice command is generated. The recognized voice command is sent to an affected device in the vehicle.