hi 
so i was driving this morning for a couple of minutes, i was in second gear and suddenly the D2 disappeared from my MFD, the car kept moving but i couldn't down/upshift.  I pulled and stopped, switched off, and switched back on.  The issue seemed to disappear.
Any experience with that?  The only time i experienced something remotely related to this was when i had a mechatronic failure although about 60 thousand miles ago, but that time i was left with an empty gear and couldn't move the car at all (the mechatronic unit was changed under warranty from dealer).
thanks