Toyota's not having a good year. The NHSTA reports two more Toyota recalls for accelerator pedal/floor mat related issues:
2006 - 2007 Lexus GS300 and GS350 AWD models.
According to the NHSTA, a plastic pad that is part of the floor mat may interfere with normal operation of the accelerator pedal. The accelerator pedal can become stuck on this plastic pad in a partially depressed position and not return to idle position.
2008-2011 Lexus LX570, 2003-2009 Toyota 4Runner, and 2006-2010 Toyota RAV4 models.