belt MAZDA MODEL MX-5 MIATA PRHT 2012 Owner's Guide

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Supplemental Restraint System Components
Driver/Passenger inflators and air bags
Crash sensor, and diagnostic module (SAS unit)
Seat belt pretensioner and load limiting systems (page 2-13)
Front air bag sensor
Side crash sensorsí
Air bag/seat belt pretensioner system warning light (page 2-38)
Side inflators and air bagsí
Passenger air bag deactivation indicator light (page 2-47)
Passenger air bag deactivation switch (page 2-43)
Passenger seat weight sensors (page 2-47)
Passenger seat weight sensor control module
Driver and passenger seat belt buckle switches (page 2-50)
Driver seat slide position sensor (page 2-47)
Essential Safety Equipment
SRS Air Bags
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How the SRS Air Bags Work
Your Mazda is equipped with the following types of SRS air bags. SRS air bags are
designed to work together with the seat belts to help to reduce injuries during an accident.
The SRS air bags are designed to provide further protection for passengers in addition to
the seat belt functions. Be sure to wear seat belts properly.
qSeat Belt Pretensioners
The seat belt pretensioners are designed to deploy in moderate or severe frontal, near
frontal collisions.
qDriver Air Bag
The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal impact of greater than moderate force, the
driver's air bag inflates quickly helping to reduce injury mainly to the driver's head or chest
caused by directly hitting the steering wheel.
For more details about air bag deployment, refer to “SRS Air Bag Deployment Criteria ”
(page 2-40).
The driver's dual-stage air bag controls air bag inflation in two energy stages. During an
impact of moderate severity the driver's air bag deploys with lesser energy, whereas during
more severe impacts, it deploys with more energy.
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qSide Air Bagsí
The side air bags are mounted in the outboard sides of the front seatbacks.
When the air bag crash sensors detect a side impact of greater than moderate force, the
system inflates the side air bag only on the side in which the vehicle was hit. The side air
bag inflates quickly to reduce injury to the driver or front passenger's chest caused by
directly hitting interior parts such as a door or window.
For more details about air bag deployment, refer to “SRS Air Bag Deployment Criteria ”
(page 2-40).
In addition, the front passenger side air bag is designed to only deploy in accordance with
the total seated weight on the front passenger seat. For details, refer to the driver and front
passenger occupant classification system (page 2-47).
q Air Bag/Seat Belt Pretensioner System Warning Light
If the air bag/seat belt pretensioner system is working properly, the warning light
illuminates when the ignition is switched ON or after the engine is cranked. The warning
light turns off after a specified period of time.
A system malfunction is indicated if the warning light constantly flashes, constantly
illuminates or does not illuminate at all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazda Dealer as soon as possible. The system may not
operate in an accident.
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SRS Air Bag Deployment Criteria
This chart indicates the applicable SRS equipment that will deploy depending on the type
of collision.
(The illustrations are the representative cases of collisions.)
SRS
equipment Types of collision
A severe frontal/near frontal collision A severe side collision A rear collision
Seat belt
pretensioner X*1(both sides)
No air bag and front seat
belt pretensioner will be
activated in a rear collision.
Driver air
bag X
Passenger air bag X
*1
Side air
bagíX*1(impact side only)
X: The SRS air bag equipment is designed to deploy in a collision.
*1: The passenger front and side air bags and the seat belt pretensioner are designed to deploy depending on the condition of the total seated weight on the passenger seat or
the status of the passenger air bag deactivation switch.
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Passenger Air Bag Deactivation Switch
WARNING
Do not deactivate the passenger air bag unnecessarily:Unnecessary deactivation of the passenger air bag is dangerous. If turned off
unnecessarily, the passenger will not receive the added protection of the air bag.
Serious injuries or even death could occur. With the exception of passengers fitting
the categories described below, do not turn the air bag deactivation switch to the
OFF position.
Your vehicle is equipped with a passenger air bag deactivation switch. The switch is
located in the position shown in the figure below. The switch must be used to deactivate
the passenger front and side air bags and also the passenger seat belt pretensioner system
when the occupant of the passenger seat fits into one of the following categories (as
described in the request form for the passenger air bag deactivation switch, the appendix B
to part 595 of National Highway Traffic Safety Administration [NHTSA]):
lInfants (less than one year old; for all types of restraint, but particularly the rear-facing
child restraint.)
lChildren aged 1 to 12lPeople with certain medical conditions which, according to his/her physician, could be
adversely affected by air-bag activation
For more government release information on air bag deactivation, contact an Authorized
Mazda Dealer for the occupant categories as described in the request form for the air bag
deactivation switch in the NHTSA rules.
The air bag deactivation switch turns off the passenger front and side air bags and the also
seat belt pretensioner system. Make sure the passenger air bag deactivation switch is in the
ON position except when a passenger fitting the previous categories occupies the front
passenger seat.
Essential Safety Equipment
SRS Air Bags
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Passenger Air Bag
Deactivation Switch Passenger Air Bag
Deactivation Indicator Light Passenger Front and Side
Air Bag Operation Passenger Seat Belt
Pretensioner System
OFF position
On Deactivate Deactivate
ON position
Off ReadyReady
When the ignition is switched ON the passenger air bag deactivation indicator light comes
on for a specified period of time.
If the passenger air bag deactivation switch is in the OFF position, the indicator light
remains on to warn that the passenger front and side air bags and also the seat belt
pretensioner system have been deactivated.
In addition to using the key to deactivate the passenger front and side air bags and the also
seat belt pretensioner system, the passenger front and side air bags and the also seat belt
pretensioner system is also deactivated and the passenger air bag deactivation indicator
light is illuminated automatically.
NOTE
Have the passenger air bag deactivation switch inspected by an Authorized Mazda Dealer if any of
these conditions occur:
lThe passenger air bag deactivation indicator light does not illuminate for a specified period of
time when the ignition is switched ON.
lThe passenger air bag deactivation indicator light does not remain on when the ignition is
switched ON and the passenger air bag deactivation switch is in the OFF position.
lThe passenger air bag deactivation indicator remains on when the ignition is switched ON and
the passenger air bag deactivation switch is in the ON position.
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The passenger front and side air bags and also the seat belt pretensioner system will remain
deactivated until the passenger air bag deactivation switch is turned to the ON position.
qTo Ready the Passenger Air Bag
Before driving, always confirm that the passenger air bag deactivation switch is in the
appropriate position according to your requirements.
1. Insert the key into the passenger air bag deactivation switch and turn the key
counterclockwise until the key points to ON.
2. Remove the key.
3. Make sure the air bag deactivation indicator light turns off after the ignition is switchedON.
NOTE
(With advanced key)
After operating the passenger air bag deactivation switch, put the auxiliary key back into the
advanced key.
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Driver and Passenger Occupant Classification System
First, please read“Supplemental Restraint System (SRS) Precautions ”(page 2-30)
carefully.
q Driver Seat Slide Position Sensor
Your vehicle is equipped with a driver seat slide position sensor as a part of the
supplemental restraint system. The sensor is located under the driver seat. The sensor
determines whether the driver seat is fore or aft of a reference position and sends the seat
position to the diagnostic module (SAS unit). The SAS unit is designed to control the
deployment of the driver air bag depending on how close the driver seat is to the steering
wheel.
The air bag/seat belt pretensioner system warning light flashes if the sensor has a possible
malfunction (page 2-38).
qPassenger Seat Weight Sensors
Your vehicle is equipped with a passenger seat weight sensors as a part of the supplemental
restraint system. These sensors are located under both of the passenger seat rails. These
sensors determine the total seated weight on the passenger seat and monitor the seat belt
buckle for the passenger seat. The SAS unit is designed to prevent the passenger front and
side air bags and seat belt pretensioner system from deploying if the passenger air bag
deactivation indicator light illuminates.
To reduce the chance of injuries caused by deployment of the passenger air bag, the system
deactivates the passenger front and side air bags and also the seat belt pretensioner system
when the passenger air bag deactivation indicator light illuminates. Refer to the following
table for the passenger air bag deactivation indicator light illumination conditions.
This system shuts off the passenger front and side air bags and seat belt pretensioner
system, so make sure the passenger air bag deactivation indicator light illuminates
according to the following table.
The air bag seat belt pretensioner system warning light flashes and the passenger air bag
deactivation indicator light illuminates if the sensors have a possible malfunction. If this
happens, the passenger front and side air bags and seat belt pretensioner system will not
deploy.
Essential Safety Equipment
SRS Air Bags
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Passenger air bag deactivation indicator light
This indicator light illuminates to remind you that the passenger front and side air bags and
seat belt pretensioner will not deploy during a collision.
If the passenger weight sensors are normal, the indicator light illuminates when the ignition
is switched ON. The light turns off after a few seconds.
The passenger air bag deactivation indicator light illuminates or is off under the following conditions:Condition detected by the passenger occupant
classification system Passenger air bag
deactivation indicator light Passenger front and side
air bags Passenger seat belt
pretensioner system
Empty (Not occupied)
*1Off Deactivated Deactivated
Child or child-restraint
system
*2On Deactivated Deactivated
Adult
*3Off ReadyReady
If the passenger air bag has been deactivated using the key, the passenger air bag deactivation indicator light will
remain illuminated as long you leave the passenger air bag turned off, and the chart above no longer applies.
Refer to Passenger Air Bag Deactivation Switch on page 2-43.
*1 : If the passenger seat belt is buckled, the passenger air bag deactivation indicator light illuminates, however this does not indicate a malfunction.
*2 : If a larger child sits on the passenger seat, the sensors might detect the child as being an adult depending on the child's physique.
*3 : If a smaller adult sits on the passenger seat, the sensors might detect the person as being a child depending on the person's physique.
If the passenger air bag deactivation indicator light does not illuminate when the ignition is
switched ON and does not illuminate as indicated in the above chart, do not allow a child
to sit in the passenger seat and consult an Authorized Mazda Dealer as soon as possible.
The system may not work properly in an accident. You must deactivate the passenger air
bag using the key (page 2-43) and consult an Authorized Mazda Dealer.
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WARNING
Do not decrease the total seated weight on the passenger seat:When an adult or large child sits on the passenger seat, decreasing the total seated
weight on the passenger seat required for air bag deployment is dangerous. The
passenger seat weight sensors will detect the reduced total seated weight condition
and the passenger front and side air bags and seat belt pretensioner system will not
deploy during an accident. The passenger will not have the supplementary protection
of the air bag, which could result in serious injury. Decreasing the total seated
weight on the passenger seat could result in an air bag not deploying under the
following conditions, for example:
ØLuggage or other items placed under the passenger seat or between the passenger
seat and center console that push up the passenger seat bottom.
Ø The passenger seat occupant sits in a manner such that the occupant's entire
weight is not placed on the seat sitting too close to the door.
Ø Any accessories which might decrease the total seated weight on the passenger
seat are attached to the passenger seat.
The passenger front and side air bags and seat belt pretensioner systems will
deactivate if the passenger air bag deactivation indicator light illuminates.
Do not increase the total seated weight on the passenger seat: When an infant or small child sits on the passenger seat, increasing the total seated
weight on the passenger seat is dangerous. The passenger seat weight sensors will
detect the increased total seated weight, which could result in the unexpected
deployment of the passenger front and side air bags and seat belt pretensioner
system in an accident and may cause serious injury. Increasing the total seated
weight on the passenger seat could result in the passenger front and side air bags
and seat belt pretensioner system deployment in an accident under the following
conditions, for example:
ØThe passenger air bag deactivation indicator light does not illuminate when
seating a child in the child-restraint system.
Ø Luggage or other items are placed on the seat with the child in the child-restraint
system.
Ø The seat is washed.
Ø Liquids are spilled on the seat.
Ø The passenger seat is moved backward, and it is pushed into luggage or other
items placed behind it.
Ø Luggage or other items are placed between the passenger seat and center
console.
Ø Any accessories which might increase the total seated weight on the passenger
seat are attached to the passenger seat.
The passenger front and side air bags and seat belt pretensioner systems will
deactivate if the passenger air bag deactivation indicator light illuminates.
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SRS Air Bags
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