NHTSA Complaint #11685100 — 2019 CHEVROLET TRAVERSE

Vehicle: 2019 Chevrolet Traverse High Country Mileage at Failure: ~68,897 miles Problem: Rear auxiliary evaporator leaked refrigerant, causing the A/C to blow warm and fail. Safety Concerns: Loss of cooling performance in high summer temperatures → potential heat stress risk for passengers, especially children and medically vulnerable occupants. Refrigerant leaking inside the vehicle → potential inhalation exposure for occupants. Diagnosis: Dealer confirmed refrigerant leak from rear evaporator; repair cost $1,763.05. GM Awareness: GM has published TSB 16-NA-046 and PIT5335A describing this exact failure mode (evaporator corrosion from blower motor copper dust), but has not issued a recall or extended coverage.