Thanks everyone for helping solve this problem.

nynd- the liftgate works as it should with the interior button and exterior "handle" by the license plate. Closes and opens correctly, except when using fob.

rh71- car has the option and have seen the height scale on the info. screen.

How about this thought? Could the key battery need to be charged ? (which I understand is what happens when you insert key into ignition, right?) A symbol on the dash flashed what appeared to be a key and a charging symbol.
Kind of makes sense as the car has been on a lot for 3 months. Will see if it changes after using key for awhile.