Certain 2005-2014 Mustang, 2005-2006 GT, 2004-2011 Ranger, 2006-2012 Fusion & MKZ/Zephyr, 2006-2011 Milan, and 2007-2010 Edge & MKX Vehicles Driver & Passenger Airbag Module Quality Control Inspection: Ford Motor Company has determined that some vehicles claimed by dealers as repaired under Takata Airbag Safety Recalls 15S21, 17S42, 18S02, 19S01, and 21S12 may not have received the claimed repairs. The propellant in certain Takata airbag inflators can experience an alteration over time with exposure to certain climate conditions. A combination of time, high temperature fluctuations, and humidity contribute to the degradation of the propellant in the inflators. This degradation can cause the propellant to burn too quickly, creating high pressure inside the inflator, and in extreme cases causing the inflator to rupture in the event of a crash necessitating airbag deployment. A ruptured inflator can send inflator parts toward vehicle occupants resulting in serious injury or death. Additional information regarding Takata recalls can be found at www.nhtsa.gov and www.safercar.gov.