No offense but as an owner of Jeep Grand Cherokee since new, previous owner of 4 other Chrysler products, I think you are uninformed. Nothing personal but Chrysler would be my last choice.
Having said all that, the real issue you have is with your dealer. What has been the response. I have not seen anything on this forum that leads me to believe GM is "ignoring" the "problem". Truthfully we all need more information to determine what is going on. Seems as if it is a synchro issue.
No offense taken.
Here's some food for thought though. One person's experience does not mean much when looking at the big picture. Humans in general like to believe that when something happens to us, it means the entire brand or service in is poor. Every brand has defects, the rotten egg in dealerships, etc.