Mazda 2005 Mazda6 Sports Sedan Owner's Manual page 72

Essential Safety Equipment
SRS Air Bags
Limitations to front air bag activation
Depending on the severity of impact, the
front air bags may not inflate in the
following cases:
Impacts involving trees or poles cause
l
severe cosmetic damage but may not
have enough impact to activate the air
bag.
Frontal offset impact to the vehicle
l
may not provide the stopping force
necessary for air bag deployment.
Rear-ending or running under a truck's
l
tail gate may not provide the stopping
force necessary for air bag deployment.
2-58
Non-activation of front air bags
Front air bags will not normally inflate in
the following cases:
Collision from the rear.
l
Impact to the side, but it may deploy
l
the side and curtain air bags.
Vehicle roll-over, may deploy the side
l
and curtain air bags but not the front air
bags.