Just a quick update. Tesla service noted it’s likely a firmware bug and the error still persists on my car.
Unfortunately, while they were checking my rear occupancy sensor alert, they broke a latch/actuator on the seat and blamed the alert on that. When I picked up the car last week, there was a new “seat unlatched visual and audible” alert while driving, so beelined back to service immediately. They determined that the seat needs to be completely replaced, and ordered a new 2nd row right hand seat.
It’s being installed now — hoping they don’t return the car with anymore new issues. But with Burbank’s track record, I wouldn’t be surprised.