With that comment from
@ILLCOMM, I'm wondering if my issue came from 17.42 now... 17.42 was supposed to fix my original bricked disaster from recurring, and now in the middle of another one, partially:
Made several trips today, and when starting up after the last one, Steering Assist failed. Following the approach Customer Service had me try last time, I rebooted both screens (nada), and then turned power off for several minutes. I then couldn't restart using the brake pedal. Eek! While on hold with Roadside, I had the idea to use an app to do a remote start, and that woke her up, and everything was fine. WTF....
So, hung up, drove home with no issues at all, called again, discussed this, and was put into the diagnostic queue, and put in for a callback, where I still am (waiting for one). (Calling Roadside or trying to get to Diags on a Saturday is our own Production Hell, it seems...)
It's possible something is too sensitive, and is throwing alerts that are false-positive (on SAS and Power Steering) in 17.42.
@ILLCOMM, did they have you try power shutdown from the Settings screen, wait three minutes, and start it up again?