Warning light for traction battery cooling parts

[chix5]

I have 2023 sequoia and a few days ago I got a warning light (triangle with the ! inside it) pop up with the message "Maintenance required for traction battery cooling parts, see owners manual". I checked the manual which indicated I likely need to check and make sure the intake vents for the traction battery (hybrid battery) weren't blocked. I checked them, cleaned the filters, and the next day the light was gone. Today it came back. I have an appointment tomorrow morning for Toyota to check it out, but wondering if anyone else has seen this and what it ended up being. I have a bumper to bumper warranty so hopefully this will be covered...