NHTSA Complaint #11656110 — 2016 FORD F-150

To whom it may concern. The vehicle down shifts from a much higher gear to a lower gear which causes a violent slow down and high revs of the engine. This is happening much more frequently and is dangerous because of the rapid deceleration. The reason I think it is downshifting is the RPM's spike and the gear selector flashes when the episode happens. My VIN Number is [XXX] . I have taken the vehicle in a few times to my local Ford Dealer. Hall Ford Elizabeth City NC. They tell me there is nothing more they can do until Ford gives them direction. I had another service appointment today and I pushed Hall Ford Elizabeth City NC to do another inspection and they did see a code which they say they reset but did not know if it was what caused our issue. The code P1921 (Range Sensor) which if defective some sources say it could cause the transmission to have issues understanding what gear to go to. I need some help Please let me know what I can do, short of parking it, or driving it and have it have a serious episode. -- INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)