A system and method of initiating a vehicle data upload function at a plurality of mobile vehicles. A satellite radio system broadcast channel is monitored for a call center initiated vehicle data upload command signal at the plurality of mobile vehicles. A determination is made, at the plurality of mobile vehicles, whether the vehicle data upload command signal corresponds to a mobile vehicle. The vehicle data upload command signal is extracted from the broadcast channel based on the determination. A vehicle data upload function is performed based on the extracted vehicle data upload command signal. The method further comprises determining the plurality of mobile vehicles at a call center based on a service criterion. A computer usable medium is with suitable computer program code is employed for of initiating a vehicle data upload function at a plurality of mobile vehicles.