are you running an ATF +4??? AN ATF +4 or Synthetic is basically the same thing. if your not you need to swap it in. The Jeep auto tranmissions are very picky.
The dealer accidently put in atf 3 in my 3 speed auto and within a few weeks I had wierd noises on cold start ups only in park, a over heating trans, bucking on a hard shift, and my front pump seal went boom. I made them pay for everything and they put in atf 4 and I havnt had an issue since.
make sure your filter is changed again. basically on a auto trans theres not much to maintain or adjust anymore. good fluid and a fresh filter cures most issues. If the dealer or shop put in the wrong fluid it should state what was used on the receipt. show the reciept tell them its the wrong stuff and make them do a full drain. torque converter and all with a new filter. varnish and gunk can build up very quickly with the wrong oil inside.