TL* THE CONTACT WAS AN ADMINISTRATOR FOR THE CHILD DEATH REVIEW FOR LA COUNTY. THE CONTACT STATED THAT THE OWNER OF A 2016 NISSAN ALTIMA, EXITED THE VEHICLE WITH THE HEATER ACTIVATED AND LEFT HER 2-YEAR-OLD CHILD IN A CAR SEAT LOCATED IN THE REAR PASSENGER SIDE OF THE VEHICLE FOR OVER 3 HOURS UNATTENDED. THE CAR SEAT INFORMATION WAS NOT AVAILABLE. THE CHILD WAS PRONOUNCED DECEASED DUE TO A HEAT STROKE. THE TEMPERATURE IN THE VEHICLE EXCEEDED 117 DEGREES FAHRENHEIT AND THERE WAS NO WARNING LIGHT TO MAKE THE DRIVER AWARE THAT THE VEHICLE COULD REACH FATAL HEATER TEMPERATURES OR THAT THE INTERIOR OF THE VEHICLE WAS REACHING HIGH LEVELS OF HEAT TEMPERATURES. THE CONTACT WAS CONCERNED THAT THERE WAS NO SAFETY MECHANISM TO AVOID THE VEHICLE REACHING INTERIOR HIGH-TEMPERATURE LEVELS. THE MANUFACTURER WAS NOT INFORMED OF THE INCIDENT. THE FAILURE MILEAGE WAS NOT AVAILABLE.*DT