Mine was replaced under warranty, but the problem showed up again I think from memory about 20,000km later. My 2007 Kluger is now coming up to its 130,000km service and the knocking noise/feel has been with it most of the time since I have owned it. Other than that and the cold weather dash rattles it has been a good vehicle. They do not have a fix for this knocking issue sadly though. Obviously (hopefully:) Toyota are confident it will not result in a severe failure. I would hope after their US recall problems, and VW Australia's recent DSG transmission highly publicised dramas, that Toyota have made sure this will not end very badly. PS this issue is well know to RAV4, Aurion etc as well.