An electronic processing system for dynamic vehicular threat detection perimeter modification for an exited vehicular occupant, the system comprising: a memory; a transceiver; one of a 360 degree vehicular light imaging and a radio wave distancing system (120A-D) physically coupled to a vehicle; and one or more processors configured to: prior to detecting a vehicular occupant exiting the vehicle, establish a first sized vehicular geofence surrounding the vehicle as a function of one or more stored vehicular perimeter distances (412, 414); monitor, via one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a first breach of the first sized vehicular geofence; detect, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D) or via another sensor physically coupled to an interior or exterior of the vehicle or to a vehicular occupant (104, 106), that the vehicular occupant previously inside the vehicle has exited the vehicle; modify, as a function of a detected location of the exited vehicular occupant and of the configuration of one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), at least one of the one or more stored vehicular perimeter distances (412, 414) to establish a second sized vehicular geofence surrounding the vehicle as a function of the modified one or more stored vehicular perimeter distances (512, 514), the second sized vehicular geofence being different than the first sized vehicular geofence; and monitor, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a second breach of the second sized vehicular geofence. a memory; a transceiver; one of a 360 degree vehicular light imaging and a radio wave distancing system (120A-D) physically coupled to a vehicle; and one or more processors configured to: prior to detecting a vehicular occupant exiting the vehicle, establish a first sized vehicular geofence surrounding the vehicle as a function of one or more stored vehicular perimeter distances (412, 414); monitor, via one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a first breach of the first sized vehicular geofence; detect, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D) or via another sensor physically coupled to an interior or exterior of the vehicle or to a vehicular occupant (104, 106), that the vehicular occupant previously inside the vehicle has exited the vehicle; modify, as a function of a detected location of the exited vehicular occupant and of the configuration of one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), at least one of the one or more stored vehicular perimeter distances (412, 414) to establish a second sized vehicular geofence surrounding the vehicle as a function of the modified one or more stored vehicular perimeter distances (512, 514), the second sized vehicular geofence being different than the first sized vehicular geofence; and monitor, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a second breach of the second sized vehicular geofence. prior to detecting a vehicular occupant exiting the vehicle, establish a first sized vehicular geofence surrounding the vehicle as a function of one or more stored vehicular perimeter distances (412, 414); monitor, via one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a first breach of the first sized vehicular geofence; detect, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D) or via another sensor physically coupled to an interior or exterior of the vehicle or to a vehicular occupant (104, 106), that the vehicular occupant previously inside the vehicle has exited the vehicle; modify, as a function of a detected location of the exited vehicular occupant and of the configuration of one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), at least one of the one or more stored vehicular perimeter distances (412, 414) to establish a second sized vehicular geofence surrounding the vehicle as a function of the modified one or more stored vehicular perimeter distances (512, 514), the second sized vehicular geofence being different than the first sized vehicular geofence; and monitor, via the one of the 360 degree vehicular light imaging and radio wave distancing system (120A-D), for a second breach of the second sized vehicular geofence.