Radiator problems of the 2016 Jeep Cherokee

Started having service shifter codes at approximately 30k. Would be repaired & after about 8 wks it would throw the same code. Repeated the same cycle 2 adtl times. Took a total of 4 times till the entire shifter, module & wiring were replaced. At 40k miles my Jeep died on me going down a hill. Had to coast down hill & find a halfway safe area off the highway. I had no ability to start the vehicle. The electronics would come on when I turned the key but it would not turn over. All the lights on the shifter would be solid & the service shifter alert came on. Immediately called the dealership. The service adviser walked me thru how to reset the car. Wait for 5 minutes. Turn the key on & let it cycle. Turn the key off. Repeat the process 3 x's till it starts. Took it into the dealership & was told the thermostat module & the radiator. Neither of which would be covered under warranty. Same time I also had an oil change done. 2 1/2 mths later same issue. Die going down a hill. Again took it to the dealership. Told that it was a sensor & wasn't covered under warranty. Had an oil change done this time. I have not replaced any parts on it yet. The thermostat module & the radiator are still the same as the first time I took them in. 8 weeks later same issue. I took it to my local auto repair in town since the dealership could not get me in for 2 weeks & the Jeep was leaving me coasting for a safe space to pull over in traffic. Within 2 minutes they discovered Jeep was 2 quarts low on oil. The engine was losing oil pressure & was shutting off the engine to keep it from damaging the motor. Since then I've tried to schedule service with two different dealerships only to be told that using 2-3 quarts extra of oil in between oil changes is normal & they can not do anything.