Abstract: A safety system using a network connected to a vehicle to alert a client device of an operator, a first responder, a dedicated emergency dispatch service, a bystander or combinations thereof to the presence of an occupant in a vehicle passenger compartment of a vehicle indicating the occupant's temperature has exceeded or dropped below a life threatening threshold. The system uses a plurality of pressure sensors in vehicle seats, a first plurality of optical infrared frequency sensors located in the passenger compartment for measuring air temperature values of the passenger compartment, a plurality of second optical infrared frequency sensors measuring occupant temperature values in the passenger compartment and, in embodiments, at least one front seat motion sensor and at least one back seat motion sensor.