I had the same. Message cleared after I cleaned the radar sensor (driving didn't help).Updated 2 days ago to 2.16.17 but got the "Automatic Emergency Breaking Disabled" message twice when entering the car in the morning. I usually use summon to get the car out the garage but both days had to manually back out. Is this something that goes away or I should call support? Not sure how to tell if it reactivates when I drive or not..
You might also want to try power off the car, leave it off for like 5 minutes and then turn it back on (push the break pedal). If that doesn't help, call the help desk.