Coolant Leaking problems of the 2016 Kia Motor Sorento

I'm highly disappointed in my 2016 kia Sorento ex awd. Just yesterday I brought the vehicle in for an oil change tire rotation and coolant flush. One of the service advisors had let me know that the vehicle is leaking oil and I'm going to need a new oil pressure switch and a new drain pan since that's where it's leaking from. For a price of $425. Upon looking and scouring the internet it looks like this is a very common problem with kia and just the step before of engine failure. I don't know why NHTSA doesn't make this a standard recall considering the sportage has the same recall available. I mean it's a known fact kia engines are lacking in oil ,catching on fire and failing. I bought this car as a certified pre-owned to be rest assure with my uneasiness about buying a used car and I've been at the dealership getting repairs left and right. I'm not even at 60,000 miles and that's how ludicrous this is! granted the first person who owned the vehicle or at least it rather put 19,000 miles on it. It's already been in for service with the transmission I needed a torque converter and that was covered under the warranty thank goodness and now this oil leak from the oil pressure switch and oil pan needs to also be covered under warranty but I'm out of luck. There's thousands of complaints online about the same darn problem.

Engine randomly started overheating while driving, even though car was regularly maintenanced/serviced. Took to dealership was told when they tore down the engine, found rear cylinder leaking coolant; threads to engine came out with bolt itself causing irreversible damage. We were told since not original owners no warranty. This went through kia complaints and then to their regional parts manager who denied any good will. We purchased the vehicle in 2016, it is a 2016 . It had less than 30k miles on it and we produced regular maintenance records on the vehicle. We have been trying to get some resolution with kia for over a year.