Mazda RX-8 Workshop Manual page 2912

A live (undeployed) air bag module placed with its deployment surface to
ground is dangerous. If the air bag module were to accidentallyrate (deploy), it
could cause serious injury. Always place a live (undeployed) air bag module
with its deployment surface up.
Side Air Bag Module Handling
When a side air bag module operates (deploys) due to a collision, the interior of
the seat back (pad, frame, trim) may become damaged. If a side air bag does
not operate (deploy) normally from a seat back that has been reused, a serious
accident may result. After a side air bag has operated (deployed), always
replace both the side air bag module and the seat back (pad, frame, trim) with
new parts. After servicing, verify that the seat operates normally and that the
wiring harness is not caught.
Seat Weight Sensor Handling
The passenger-side seat and the seat weight sensor may become deformed or
otherwise damaged due to operation (deployment) of the front or side air bag
in an accident. This may cause the passenger sensing function to operate
improperly and result in a serious accident. Always replace the passenger seat
and seat weight sensor with new ones after the front or side air bags have