Thanks @Purplecty. On the LCM page these would appear to be options remaining to uncheck...

- SELFLEVEL SUSP INACT
- SPEED LIMIT (for the do not exceed 35 MPH warning?)
- CHECK AIR SYSTEM
- AHC INACTIVE
(among many others not obviously related).

Nevertheless I still saw these alternating on the screen...

- SELFLEVEL SUSP.INACT
- MAX. 35 MPH
- LIMIT --- MPH

Unchecking all kinds of things out of frustration would likely not help the next person until unchecking:
- TTX_S1_(CODE)
- TTX_S1_1
- TTX_S1_2
- TTX_S1_3

No clue what those mean. Not saying I even have the software but, success. I do not see any of the three errors. However, I do still have the yellow tire pressure light. I assumed it was related to the EHC system since I'd tried resetting it numerous times holding the button. Unrelated?