Ford Mercury Villager 1997 Owner's Manual page 150

Children and Air Bags
NOTE: For additional important safety information on the
proper use of seat belts, child seats, and infant seats,
please read the entire Safety Restraints chapter in this
owner guide.
Children should always wear their safety belts.
How Does the Air Bag Supplemental Restraint System
Work?
The Air Bag Supplemental Restraint System is designed to
activate when the vehicle is in a collision. The fact that the air
bags did not inflate in a collision does not mean that something is
wrong with the system. Rather, it means the forces were not of
the type sufficient to cause activation.
If the vehicle is in a moderate or severe frontal collision, the
system is activated and the air bags inflate rapidly. After the air
bag inflates, it will quickly deflate. After the air bag
deployment, you may notice a smoke-like, powdery residue or
smell the burnt propellant. This is normal. The residue may consist
of cornstarch or talcum powder (which is used to lubricate the
air bag) or sodium compounds, such as sodium carbonates (e.g.
baking soda) that result from the combustion process that
inflates the air bag. Small amounts of sodium hydroxide may be
present which may irritate the skin and eyes, but none of the
residue is toxic. The Air Bag Supplemental Restraint System will
reduce, but not eliminate all injuries in an accident.
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WARNING