Well count me as another on my way to SC to fix this exact error. No TACC, no AP, no front collision warnings. Not just inconvenient but actually kinda scary.
For me it initially triggered in what I believe was my MS's first true whiteout blizzard event. I wasn't even trying to use AP or TACC so I just laughed at the time but not laughing when it still wasn't working the next day. I usually need to park outside but it didn't clear after car washes and defrost sessions in underground parking.
Nothing works except the ultrasonics (parking assist is still being offered). The dash display does start to show a lane line sometimes for a split second but then it stops (sometimes with a limp curved blue line to nowhere being left on screen).
Before coming here I was convinced it was the radar unit that lost its mind. But now I'm betting based on others' responses here that my MobilEye camera will be replaced. I haven't seen any condensation though. I've tried rebooting everything and even turned off the "always on" stuff last night in hopes I get a thorough cold reboot today but I'm not at all expecting it to start working again as it's been totally dead for a a week or so now...