And one more feature : when a certain angle is detected, the rear diff. is engaged (AWD ready).
No mountains where I live and drive, so I can't comment on the shifting patterns or efficiency. Not suprised by some of the comments though, the ZF9 is a querky beast (as in programmed by people high on something...).
And to add even one more feature that is very useful when descending long grades, but isn't talked about often:
Putting the Cherokee in SPORT mode will give you better engine braking in two ways:
1. It tends to keep engine RPMs up
2. It opens and closes the intake manifold differently than AUTO, resulting in better engine braking. Apparently in AUTO the throttle body is closed in a way that maximizes efficiency by allowing you to coast farther.
I hope I'm not making the second part up because I can swear I read it in the manual a couple of years ago, but I don't remember which section it was in.
I could have dreamed it, but I go over the Santa Cruz mountains on hwy 17 at least twice a month and there is a specific section right after you crest the mountain where there is a decently long down grade and I have tried coasting in both SPORT and AUTO, starting at the same speed, in the same gear by using ERS, and when in SPORT, I actually have to give it a little gas at the halfway point so that I don't lose speed, where as in AUTO, I have to brake a little before the turn at the bottom so that I don't exceed the safe speed for that turn.
Now that could be the parasitic loss due to the rear diff being activated, but I figure the grade activates it anyway.