NHTSA Complaint #11468042 — 2018 FORD F-150

While traveling on a straight and level interstate freeway with the cruise-control set to 75mph. A huge loss of power followed by a hard downshift from 10th to 7th, up to 9th and attempting to shift back into 10th before I decided to reduce speeds and pull over because it was very dangerous surging/uncontrollable for moments for myself and those driving around me. I noted smoke pouring out from behind the vehicle and that the transmission temp was at 226F. NO WARNING LAMPS/MESSAGES OR OTHER SYSMPTOMS NOTED. Once pulled over, I inspected the underside of the vehicle and noted the whole underside coated in automatic transmission fluid (Red in color). The fluid seemed to trace back to just before the engine/transmission interface. Transmission was serviced 7k miles prior. Dealer advised (through email correspondence) that I let the vehicle/transmission cool down and can then continue to drive the vehicle as the ATF foams up/ expanding and spills out of the transmission vent tube. If problems persist to bring in the vehicle for inspection.