Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2008-2010 Lexus SC vehicles manufactured August 3, 2007, to July 30, 2010, 2008 Toyota Corolla vehicles manufactured May 25, 2007, to December 21, 2007, 2008 Toyota Corolla Matrix vehicles manufactured June 1, 2007, to December 18, 2007, and 2008 Pontiac Vibe vehicles manufactured June 1, 2007, to January 2, 2008. This is to address a safety defect in the passenger side frontal air bag inflator which may produce excessive internal pressure causing the inflator to rupture upon deployment of the air bag. This recall addresses both the passenger side frontal air bags that were originally installed in the vehicles, as well as replacement air bags that may have been installed as replacement service parts. A replacement air bag may have been installed, as one example, if a vehicle had been in a crash necessitating the replacement of the passenger side frontal air bag.