Automatic Transmission Control Module problems of the 2014 Jeep Patriot

I have had this vehicle for 2 1/2 years. In those initial 2 years, I worked for a Chrysler dealer but had to travel 50 miles one way to work, so I put 100 miles a day on my vehicle just to work and back. Recently I had the pcm replaced twice which never fixed the issue, only to need a new ground wire. The vehicle has worked fine for a month, until now. Now, I have a cracked manifold. The dealer is unable to do anything to help take care of this issue and when I spoke with Chrysler they informed me that they can not take care of it either. They're reason is that the manifold cracked because of the mileage on the vehicle. The mileage is high because I worked for a Chrysler dealer which was 50 miles away!!!! I am appalled at the fact that no one wants to take care of an issue that a 2 year old vehicle should not have. I will never buy from Chrysler again and I would not recommend them to anyone!!.