So, dealer fixed mine. Said transmission cooler line had broken loose, probably at highway speeds for whatever reason. Lost all Or most of the fluid, transmission quit functioning. They looked through everything (cooler, transmission) and said it seemed fine. Replaced a transmission cooler line and added a support bracket for the lines that Ford is now recommending be added. I would expect that is what this field service action involved-placing the bracket for the cooler lines. But the vehicle was fine (1800 miles, one month since purchase), no leaks until we took it on the extended (4 hour) highway drive running continuous 75mph. As I mentioned before, I first started hearing and feeling some problems in low gears at a gas stop at the 2 hour mark. Progressively worse over the next couple of stops (seemed fine at highway speeds), then wouldn’t go into gear (and was automatically applying parking brake). No issues after dealer fix so far.