NHTSA Complaint #11594932 — 2019 TOYOTA RAV4

my Toyota RAV4 2019, At around 44500 miles a messaged started to showing up, message was "Engine Maintenance Required" "Visit your Dealer", the message cannot be disregarded, it blocked important part of the dashboard. No other warning light or failure lights were on. Upon taking the vehicle to the Dealer, agent mentioned it could be a non reseted counter for the regular 5000 miles next service reminder, however such maintenance wasn't due, after check by additional person, technician and scan, it turned out to be the bypass valve sticking, code found P268115 and suggested repair for around $900, since vehicle is no longer under the limited warranty cost would have to be covered by the client. Agent told has to be done other wise cooling system for the engine could be at fault causing overheating, and ended up on a mayor engine failure by overheating. It doesn't seem to be a normal failure found on the users manual, hence could be a possible manufacturing fault which Toyota is not covering.