Now.....if it were covered in the owners manual, do you think I'd take the
time to post the question?

The procedure is not intuitive either.

There are no prompts other than "To reset hold down reset button" which
doesn't work.

This vehicle has always had a wacky electrical system: Heated seats come on
for no reason, tire pressure warning light comes on when tires are properly
inflated, etc. Perhaps there's a malfunction in the message center. The
miles until empty function is never even close and often just goes haywire.
repairing those things are way over my head. Time for a trip to the
dealership.