A device may remotely immobilize a vehicle via peer-to-peer device communication or network assisted communication. Initially, a request inputted by a user to initiate vehicle immobilization of a vehicle may be received at a master control device. The master control device may send an information query command to the vehicle communication device of the vehicle via proximity communication. Subsequently, the master control device may receive a device identifier from the vehicle communication device via the proximity communication. A vehicle immobilization request that includes the device identifier may be sent from the master control device to a wireless communication carrier. The request may prompt the wireless communication carrier to broadcast an immobilization command via a cellular communication network to the vehicle communication device of the vehicle that is identified by the device identifier. Alternatively, the master control device may directly send the immobilization command to the vehicle communication device.