Welcome on, I'm in Charlotte in the Ballantyne area. I've performed my own maintenance so far, outside of some warranty work. Eurowise seems to be familiar with the powertrain so they might be worth looking at. I haven't had them do anything yet but they're reputable and meticulous. They go so far as to document the process of work they do (usually pictures and notes). Anyway I find myself getting lost and ending up in Rock Hill sometimes so I'll probably see you around.