Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2006-2011 Toyota RAV4 vehicles manufactured October 31, 2005, to September 7, 2010, and 2010 Lexus HS250h vehicles manufactured July 6, 2009, to August 26, 2010. The affected vehicles have rear suspension arms (rear tie rods) with adjusting lock nuts that may have been improperly tightened after servicing. As a result of being loose, the arm may have thread damage and may rust, possibly leading to the failure of the arm and an abrupt change in the vehicle’s alignment.