Warning system to avoid child hyperthermia in vehicles

A safety system for passenger space in an enclosed vehicle, comprising

• a thermostat having a threshold temperature, an ambient temperature sensor in the passenger space and a signal representing the threshold temperature in the passenger space from the temperature sensor;
• an occupant sensor in the passenger space having a signal representing the presence of an occupant of the passenger space;
• a GPS locator;
• a radio transmitter;
• a controller receiving the signal representing the threshold temperature in the passenger space, receiving the signal representing presence of an occupant of the passenger space and being in communication with the GPS locator and including a timer measuring time from the ambient temperature signal exceeding the temperature threshold value, a timer threshold value and a signal output generator, the controller generating a first output signal to the radio transmitter representing the ambient temperature above the temperature threshold and the presence of an occupant in the passenger space, the controller generating a second output signal to the GPS locator representing the ambient temperature above the temperature threshold, the presence of an occupant in the passenger space and the time exceeding the timer threshold value, the radio transmitter sending a first alarm responsive to the first output signal, the GPS locator contacting a first responder network responsive to the second output signal;
• a key fob, the first alarm being transmitted to the key fob to generate a signal emanating from the key fob.