From my research they Released a revised chain in 2011. I had same experience. I asked if there were any recalls. They said yes a critical ecu update so I asked for it. He said that our only under warranty for 60k so I have to pay $99! Wtf? If it was critical then they should do it. Soon saidI wanted documentation on what the ecu was updating. if thereare revised timing maps how do they know that did not cause my car to fail early