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Seat Belt Pretensioner and
Load Limiting Systems
For optimum protection, the driver and
passenger seat belts are equipped with
pretensioner and load limiting systems.
For both these systems to work properly
you must wear the seat belt properly.
Pretensioners:
In moderate or severe frontal or near-
frontal accidents, the air bag and
pretensioner systems deploy
simultaneously. The seat belt retractors
remove slack quickly as the air bags are
expanding. Any time the air bags and
front seat belt pretensioners have fired
they must be replaced.
In addition, the pretensioner system for
the passenger, like the passenger air bag,
is designed to only deploy in accordance
with the total seated weight on the
passenger seat (page 2-43) or when the
passenger air bag deactivation switch
turned to the ON position (page 2-39).
Load limiter:
The load limiting system releases belt
webbing in a controlled manner to reduce
belt force on the occupant 's chest. While
the most severe load on a seat belt occurs
in frontal collisions, the load limiter has
an automatic mechanical function and can
activate in any accident mode with
sufficient occupant movement.
Even if the pretensioners have not fired,
the load limiting function must be
checked by an Authorized Mazda Dealer
after any collision.
WARNING
Wear seat belts only as recommended
in this owner's manual:
Incorrect positioning of the driver and
passenger seat belts is dangerous.
Without proper positioning, the
pretensioner and load limiting
systems cannot provide adequate
protection in an accident and this
could result in serious injury. For
more details about wearing seat
belts, refer to “Fastening the seat
belts” (page 2-10).
Have your seat belts changed
immediately if the pretensioner or load
limiter has been expended:
If the air bags deploy the
corresponding pretensioner(s) may
also deploy at the same time. Like
the air bags, the seat belt
pretensioners will only function once.
While it is safer to use a crash-used
seat belt that was used in an
accident than no seat belt at all,
using a seat belt with an expended
pretensioner or load limiter loaded
reduces the safety available to you. If
the seat belt pretensioners are not
replaced, the risk of injury in a
collision will increase. Expended seat
belt pretensioners and air bags must
be replaced after any collision which
caused them to deploy. Additionally,
the load limiter will only limit loads
on the chest once in a collision and
this is another reason to have the
seat belts inspected. Always have an
Authorized Mazda Dealer inspect the
seat belt pretensioners and air bags
after any collision.
2-12
Essential Safety Equipment
Seat Belt Systems
MX-5_8AV1-EA-09F_Edition2 Page24
Thursday, July 30 2009 2:43 PM
Form No.8AV1-EA-09F