For those who wish to view this safety recall's source documents and track its progress, I recommend:
http://www-odi.nhtsa.dot.gov/owners/..._ids=14V399000
NHTSA's ODI investigation originally suggested this air bag issued was associated with high temperature/humidity areas (Florida and Puerto Rico):
http://www-odi.nhtsa.dot.gov/owners/...4016&submit=Go