Honda 2008 Odyssey Owner's Manual page 34

Additional Information About Your Airbags
During a frontal crash, your seat belt
restrains your lower body and torso,
and the airbag helps protect your
head and chest.
Although both airbags normally
inflate within a split second of each
other, it is possible for only one
airbag to deploy.
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This can happen if the severity of a
collision is at the margin, or
threshold, that determines whether
or not the airbags will deploy. In
such cases, the seat belt will provide
sufficient protection, and the
supplemental protection offered by
the airbag would be minimal.
Only the driver's airbag can deploy if
there is no passenger in the front
seat, or if the advanced airbag
system has turned the passenger's
airbag off (see page 35 ).
After inflating, the front airbags will
immediately deflate, so they won't
interfere with the driver's visibility,
or the ability to steer or operate
other controls.