04 GC question from a friend in another state

he is asking me to tell him if he has Nivomat suspension, and sent me his
VIN. but i would have to just call the dealer and ask them i think. I cant
climb under it and look since he on the opposite coast, and he's capable of
doing that himself. but can you tell from just looking? Here's what i
found online....

"Each load-leveling shock absorber is a self-leveling, self-contained
vehicle leveling system and shock absorber combined. It does not require an
external compressor, hoses, or height leveling sensors. All the height
leveling sensors, hydraulic pump, etc., are contained inside the shock
absorber. It uses road inputs (bumps, stops, starts, turns, acceleration,
deceleration, etc.) to activate pumping, which results in the extension and
compression of the shock absorber."

But i found no information on how to tell if its on the vehicle itself..

any ideas?