NHTSA Complaint #11510501 — 2017 FORD FOCUS

I was driving home from my mother's home and the car swerved and was hard to keep control of. The next day I was headed to work and the warning came on that the transmission was too hot. I let it cool down for 15 minutes and the message said it was safe to drive, but the process repeated 4 times.i called for tow to the mechanic and he said it was a transmission control module. The part was on backorder for se eral weeks. When they tried to do the repair it did not work.