I finally was able to disable the auto handsfree liftgate on the MKX. I was fed up with getting clunked on the head with inadvertent closes. There is a single wire harness to the right of center between the muffler and stone pan. A tad awkward to get at. Simply disconnect this and the auto feature is disabled. All other liftgate controls (tailgate buttons, keyfob and dash) are as normal.
Better yet, this saves a lawsuit.
JacobZ06