My Model S with Hardware 2 has consistently failed with Tesla OTA updates. Each time this happens I also get a Driver Assistance Features Unavailable. If issue persists contact Tesla Service error message that persists on the instrument panel. A couple of times, the attempted update actually killed my GPS in such a way that the car never moves away from where it was parked on the navigation when it failed. I've taken it in multiple times, and each time Tesla Service reacts as if this is the first time they've encountered such an issue. They say they fixed it, and then it happens again. I thought I'd post here to see if anyone else has had this issue. My car is parked with excellent Wi-Fi reception, so it's not that.