NHTSA Complaint #11485976 — 2016 FORD EXPEDITION

The vehicle is regularly surging then shifting gears with a loud "Thunk" from the transmission. It has made few scary decelerations that shook all of us in the vehicle. The speedometer will jump then drop and bounce back and forth then go to zero. The information on the left panel that shows MPG goes blank. There seems to be an existing issue that is similar with F-150s but the Ford dealer says it is the same thing from a transmission harness/sensor but not a real issue with the expedition. The airbag light comes on and the check engine light comes on. The check engine light goes away after about 24 hours. It happened 4 times yesterday and 3 times this morning. I can pull over and turn it off and then turn it on again to reboot and it will function until the next failure. I believe this has negatively impacted my transmission. It seems to be worse when it is raining, foggy, or high humidity.