I was driving on the highway this afternoon in clear conditions, using the TACC, and it was working just fine. About 30 minutes into my trip I received two error messages on the dash. The first was that the Cruise Control was unavailable, and the second (picture included) was that "Driver Assistance Features Unavailable", and that I should "Contact Tesla Service" which I did. (They're looking into it and will call me back.) I know several people have reported issues with Cruise Control being unavailable since TACC has been added, but I don't recall reading about anyone losing the other Driver Assistance Features. I checked, and in fact I did lose the other features. My Lane assist was no longer functioning, speed assist was not functioning, and though I did not realize it for a while, the highbeam assist was also not functioning. (I had started out before dusk, and it was not yet dark when I lost these features, so it took me a little while to realize I was driving with my highbeams on, as I had not made the connection between them and the other driver assistance features.) Also of note: while I had both error messages alternating on the dash, I also had an exclamation point error message on the 17 inch display, next to the Tesla icon at the top. But selecting it only showed the cruise control error message. The error message about the driver assistance features was not available here. I thought that was odd. I'm on software version .113, so perhaps I'll be pushed .114 and that may solve the problem. Or maybe they'll come up with something else to solve the problem. I'll report back when I hear from Tesla again.