nightrider and Jen, I got my baby back this afternoon. They did indeed change the transmission control module and it was the culprit. The rental Charger is back and I'm delighted about the whole deal. The only thing that they did is try to upsell me on a transmission flush. I refused and went merrily on my way. The car runs perfect and the transmission shifts as it should.
I'd like to tell everyone that the service was great and the repair was done quickly and efficiently. Jeff Tucker at Linclon Dodge, Chysler and Jeep was fantastic to deal with, honest and very helpful.I now can recommend them highly based on my own experience with them. They also have 2 black '08 coupes on the lot. If anyone want's one with the Black and Cedar interior. The other is black on black. Very nice cars.
So, there you have it. Jen, the Liberty is great, I like it much better than the Charger that I had.
Good luck with your's and let me know how it turns out.
Rick