Yeah, this happened to me with my VX after about 2 weeks of ownership. It is very unpleasent. There are several threads on here about similar problems. And like you said, for the most of us, it seems to be totally intermittent, and typically clears up after the vehicle is shut off and then restarted.
Some have noted that driving in "Power Mode" can cause this problem to occur more often. For me, at the time, I was indeed driving in "Power Mode" when it happened. I have since limited my use of the "Power Mode" switch, and I have not had this harsh shifting problem again.
Bart
Originally Posted by Ltnng2