BMW of North America (BMW) is recalling certain model year 2007-2011 X5 xDrive30i, X5 xDrive35i, X5 xDrive48i, X5 xDrive50i and X5M vehicles, 2009-2011 X5 xDrive35d vehicles, 2008-2011 X6 xDrive35i, X6 xDrive50i and X6 M vehicles, and 2010-2011 X6 ActiveHybrid vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or “Zone A.” Additionally, unless included in “Zone A” above, BMW is recalling certain model year 2007-2008 X5 xDrive30i, X5 xDrive35i, X5 xDrive48i, X5 xDrive50i and X5M vehicles, and 2008 BMW X6 xDrive35i, X6 xDrive50i and X6 M vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or “Zone B.” Vehicles of these model years and models that were not originally sold or ever registered in either Zones A or B are not subject to this safety recall. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to high absolute humidity and temperature cycling.