Honda (American Honda Motor Co.) is recalling certain 2014 Honda Ridgeline vehicles nationwide. Honda is also recalling certain 2011-2012 Acura RL, 2011 Honda Element and 2011-2013 Ridgeline vehicles in Arizona, Arkansas, Delaware, the 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. Lastly, if not included above, Honda is recalling certain 2010-2011 Honda Element, 2010-2012 Acura RL and 2010-2013 Ridgeline vehicles in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag air bag inflators assembled as part of the frontal air bag modules, and used as original equipment or replacement equipment (such as after a vehicle crash necessitating replacement of the original air bags), may explode due to propellant degradation occurring after long-term exposure to higher absolute humidity, temperature and temperature cycling.