NHTSA Complaint #11457021 — 2016 FORD FOCUS

I was driving the car about 25 mph and it shudders, and the acceleration is very bad. Sometimes the engine rpms go up to about 5000 before it shifts into the next gear. Also while driving, a "transmission is hot, pull over" message appears randomly. I was able to restart the vehicle after sitting for about 10 minutes on the highway, but the message reappears randomly while driving, and I have to pull over again. The car was taken to Ford, where they said the transmission was in perfect health, but I was charged for replacing the Transmission control unit. Take note that all of the transmission overheating issues are after the Transmission control unit were installed. Every time the car is driven, the hot transmission message pops up and I have to pull over and wait. This is ridiculous. I noticed on this website there are more than 300 powertrain transmission complaints. When will something be done? How many people need to complain before Ford is forced to fix this? The car is very jerky as well, and it does not feel safe to drive.