Mid/rear Assembly Head Restraint problems of the 2016 Jeep Patriot

The contact owns a 2016 Jeep Patriot. The contact stated that upon accelerating uphill, the rmps would reeve up but the vehicle would fail to respond as needed. The coolant temperature warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the vehicle temperature sensor had failed and had damaged the transmission. The vehicle was then taken to an independent mechanic where the temperature sensor, the head gasket, the water pump, the radiator, unknown hoses and clamps were replaced. A transmission flush was completed and the transmission was rebuilt. Additionally, the contact stated that upon parking the vehicle after driving 45 mph, she noticed that the driver's seat headrest had partially deployed independently. The contact pushed the headrest inside the seat; however, the headrest completely deployed. There was no warning light illuminated. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 155,000.