Embodiments relate to a method for controlling a vehicle using driver authorization, to an on-vehicle terminal, to a biometric identity card, to a biometric identification system, and to a method for providing a vehicle occupant protection function using the biometric identification card and the terminal. According to one embodiment, a vehicle occupant protection and tracking function is provided such that a smart key function is provided to perform driver authorization and vehicle control operation using a biometric identity card, a chauffeur service provision status is informed through communications between a terminal such as a mobile phone and the biometric identity card, and the vehicle is tracked upon receiving the information on the chauffeur service provision status. According to one embodiment, driver authorization and the vehicle control operation are controlled using a biometric identity card to prevent the vehicle theft, and the chauffeur service provision status is indicated to enable chauffeur identification and vehicle tracking.