One problem related to power steering pump has been reported for the 2017 Ford F-350. The most recently reported issues are listed below.
Started vehicle, placed in reverse to back out of driveway, at end of driveway stepped on break and did not stop, pressed hard and stopped. Put truck in drive to get back on driveway and almost hit garage door as breaks did not work normally so I pressed emergency break. Shut off truck, restarted and breaks worked fine. Thought it was a computer glitch and restart corrected. Drove next several days with no problem, then on way home from store I again lost normal breaking and had no power steering . I was doing approximately 30 miles per hour on a city street. Pulled over, shut off truck and restarted but this time that did not correct problem. Drove about 1 mile to Ford dealer and turned over for repair. The vehicle only has 17k miles on it. They diagnosed the power steering pump to be bad and replaced. I have not had problem since the repair. I have about 30 miles since repair. The problem is that I received no failure or warning lights, started intermittent and if I would of been driving other different conditions I would likely of been in a serious accident. If my wife was driving she would of not been able to stop or steer the truck. I have normal strength for a 60 year old man and I could barely stop and steer the truck. If I was pull an RV I would of been in a very bad situation. I am concerned that there was no warning and concerned that after first failure it seemed to reset thus assuming a computer issue. Seems strange that a mechanical pump failed and then started working for several days before failing again. After the first failure that corrected itself, I did go to Ford dealer where I bought the car and they said they were not aware of any issues but if it happens again bring the truck in to be checked. Unfortunately, I was 60miles from my purchasing dealer so went to closest Ford dealer for the repair.