NHTSA Complaint #11537846 — 2017 HYUNDAI SANTA FE

About two months ago my son was driving home and noticed the oil light flash on and off quickly while he was driving. He immediately brought the car to our regular mechanic who instructed him to just check the oil "it might be a little low"- When my son arrived home we checked the oil and the oil was down 3+quarts. There is no engine oil leak, and the oil in the car had been changed recently and has also been changed every 3-5K miles per the manufacturers recommendation. We did a bit of research and learned that this is a known problem for thousands of Hyundai owners and that Hyundai recommended we start a case with them. We did. We had an oil consumption test performed during which we were told not to check the oil at all ourselves or it would "ruin the test". We were then told that the car was "only down a quart of oil after 1K miles and so it is fine"- The case manager told us that if the car had been down even an ounce more than a quart, we would be moved into a place where we could get some repairs done on the known defective engine. We are now left with a car that burns oil at a rate that is not normal or safe. In addition, our car makes loud popping noises upon start which we have researched and found is due to oil escaping from the engine and going to places in the car where it should not be. We don't believe the car is safe to drive because there is no consistent way to determine how much oil the car is burning and asking a customer to replace a quart of oil every 1K miles is unreasonable. There are thousands of people across the US who are experiencing this same issue. Why hasn't there been a recall?