One problem related to engine grinding noise has been reported for the 2009 Toyota Matrix. The most recently reported issues are listed below.
2009 Toyota Matrix. Consumer writes in regards to safety and operational issues with vehicle and seeks to return vehicle for refund of the purchase price. The consumer stated she has experienced several near accidents because of the inability to see oncoming vehicles approaching from the left and traffic (particularly pedestrian traffic) blocked completely from her view on the right by the large side mirrors. Additionally, backing up and detecting approaching vehicles from behind created an issue, because the pillars by the rear window blocked her view. In addition, the vehicle made a grinding sound while idling, and the under mount sounded as though there was a metal grinding on metal.