It is very possible. I have actually never used my built-in nav. I will have to go try it and see if it happens to me as well.I just had this happen to me today when I turned on the nav, it must be something on the Ford end of it all since it didn’t happen at all last week when I used nav. I don’t think that TSB would apply to this issue since that was issued in July and I have a mid September build date on my truck.
Mine just started doing this as well. Starting to sound like a software bug.I'm thinking it's the latest software update. I can get the Speed sign recognition to work again if I cancel the CC and reactivate it. If I were to hit the resume button again maybe two times it will give me the message again.