2019 CADILLAC ESCALADE Seats Problems

CAR PURCHASED FEBRUARY 2019 BRAND NEW. WHEN SEAT COOLING, THE BACK OF THE DRIVER AND PASSENGER SEATS HEAT UP IN ALL COOLING MODES FROM HIGH TO LOW. RETURN VENTS ON BACK SIDE OF DRIVER/PASSENGER SEATS BLOW OUT VERY HOT AIR PROVIDING SAFETY CONCERN IF TOUCHED BY PASSENGER. INFRARED THERM. PERSONALLY PURCHASED AND RECORDED A LOG OF SEAT TEMPS FOR OVER A MONTH. RETURN VENTS ON BACK OF BOTH SEATS REACHED A MAXIMUM OF 132FON DRIVERS SIDE AND 129F ON PASSENGER. ON AVERAGE, INFRARED THERM. SHOWED DRIVER/ PASSENGER BACK OF SEATS MEASURING AVG 92-96 DEGREES F. ON OCASSION COOLING SEATS WORK WITH NO ISSUE BUT USUALLY OCCURS 15 MINUTES INTO DRIVING WITH COOL ON. WHEN SEAT COOLING TURNED OFF, SEATS/VENTS COOL OFF. WHEN TURNED BACK ON SEATS/VENTS HEAT UP. CAR SERVICED BY DEALERSHIP THREE TIMES FOR THIS PROBLEM. AFTER NOTIFYING GM CUSTOMER RELATIONS WITH CERTIFIED LETTER, A GM SERVICE ENGINEER WAS...