My issue has now been resolved.
I'm guessing the cars TPMS got angry because my tires were at 28 (should have been at 35) and it got really really cold here in northern Wisconsin.
They were set to 28 from the Dealership and I never thought to check if they were set correctly.
It IS an automatic process as "Jays Avenir" wrote.
My tires were all at 28.
I had a low tire pressure light and when I looked at the maintenance screen all 4 tires showed 28 but the right rear tire was highlighted.
This morning, I set all 4 tires to 35 (as shown on the drivers door jamb).
The low tire light disappeared automatically and all 4 tires now show 35 on the maintenance screen.
None are highlighted.
No need to drive the car at all.
Interesting to note.
If one brings up the tire maintenance screen.
Then begins adding air to or letting air out of a tire, the new tire pressure is immediately shown on the maintenance screen.
If you didn't have a tire gauge, one could just keep an eye on the maintenance screen as the tire pressure is adjusted.
It's a little thing but I really REALLY like my Envision.