I agree with Kingo in this matter, we should know our own cars and we should spot a problem as and when it crops up
Give Mr Toyota a try via your local dealer and you may just be happy with the outcome.... my wife used to have a Nissan X-Trail and the wheels on her car were badly corroded and this was taken up by Nissan 1 month out of the warranty period, yes she does not look at her car

The repair of her car was not paid for by the normal warranty system but was sorted out by the Customer Services department. I don't see why Toyota should be any different as they too have a corporate image to keep up. If you want to support your dealer with the claim then write a respectful letter to Toyota and see what happens.
Good luck