"Service shifter"? *sigh* Whatever happened to it just working--or not? Would a simple cable kill anyone here?
I get it, it's all going electronic now, so, any given switch or wire or what have you could be getting wonky--the fact that it's saying "hey, I think I'm starting to break, you better schedule a repair" is pretty amazing, actually. [And this would not be an FCA thing, since they all use this now (or could be).]