McLaren Automotive Incorporated (McLaren) is recalling certain 2012-2013 MP4-12C, 2014-2016 650s, 2015-2016 675 LT, 2014-2015 P1 and 2015-2017 570 vehicles. These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules, used as original equipment or replacement equipment (such as after a vehicle crash necessitating replacement of the original air bags), that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.