Yes and yes. You shift on the fly and it stays in the gear you are in, allowing you to then set the highest gear manually.
Mine and several others do not stay in the gear you are coming from. If I am in 6th, it goes to 4th, 5 - 3, then 4 -3. If I shift down I am thumbing up before it can change to either 5 or 6. My wife's Aura stays, but I have not found an Lambda that does.
Signature: <br /><br />Proud Former Owner of a 2007 Outlook and 2009 Acadia
I did a quick test this weekend, and it definitely down shifted when i went into L. I went probably from like 4-3, I think it had eluded to shifting to lowest recommended gear, for the speed you were going in the Manual.