Seemed like the JL was "searching" for a gear around 1,500rpm, most noticeably when I was in 5th gear (3.6, auto). Just seemed to not know what to do. I took it in yesterday and the PCM and TCM had an update. Drove it this morning and it seems to be corrected. Wanted to throw it out there since I see a few threads on what seems to be the same or similar issue.