2014 MAZDA MODEL 3 HATCHBACK Owners Manual (in English)

2–54
Essential Safety Equipment
SRS Air Bags
Limitations to SRS Air Bag
In severe collisions such as those described previously in "SRS Air Bag Deployment
Criteria", the applicable SRS air bag equipment will deploy. However, in some accidents,
the equipment may not deploy depending on the type of collision and its severity.
Limitations to front/near front collision detection:
The following illustrations are examples of front/near front collisions that may not be
detected as severe enough to deploy the SRS air bag equipment.
Impacts involving trees or polesFrontal offset impact to the vehicle
Rear-ending or running under a truck's tail gate
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2–55
Essential Safety Equipment
SRS Air Bags
Limitations to side collision detection:
The following illustrations are examples of side collisions that may not be detected as severe
enough to deploy the SRS air bag equipment.
Side impacts involving trees or polesSide impacts with two-wheeled vehicles
Roll-over (Without Front Passenger Occupant Classification System)
(With Front Passenger Occupant Classifi cation System)
Limitations to roll-over detection:
The following illustration is an example of an accident that may not be detected as a roll-
over accident. Therefore, the front seat belt pretensioners and curtain air bags may not
deploy.
Pitch end over end
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*Some models.2–56
Essential Safety Equipment
SRS Air Bags
Front Passenger Occupant Classifi cation System *
First, please read "Supplemental Restraint System (SRS) Precautions" (page 2-40 ) carefully.
Front Passenger Seat Weight Sensor
Your vehicle is equipped with a front passenger seat weight sensors as a part of the
supplemental restraint system. These sensors are located under both of the front passenger
seat rails. These sensors determine the total seated weight on the front passenger seat and
monitor the seat belt buckle for the front passenger seat. The SAS unit is designed to prevent
the front passenger front and side air bags and seat belt pretensioner system from deploying
if the front passenger air bag deactivation indicator light illuminates.
To reduce the chance of injuries caused by deployment of the front passenger air bag,
the system deactivates the front passenger front and side air bags and also the seat
belt pretensioner system when the front passenger air bag deactivation indicator light
illuminates. Refer to the following table for the front passenger air bag deactivation
indicator light illumination conditions.
This system shuts off the front passenger front and side air bags and seat belt pretensioner
system, so make sure the front passenger air bag deactivation indicator light illuminates
according to the following table.
The air bag/front seat belt pretensioner system warning light fl ashes and the front passenger
air bag deactivation indicator light illuminates if the sensors have a possible malfunction.
If this happens, the front passenger front and side air bags and seat belt pretensioner system
will not deploy.
Front passenger air bag deactivation indicator light
This indicator light illuminates to remind you that the front passenger front and side air bags
and seat belt pretensioner will not deploy during a collision.
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2–57
Essential Safety Equipment
SRS Air Bags
If the front passenger weight sensors are normal, the indicator light illuminates when the
ignition is switched ON. The light turns off after a few seconds.
The front/passenger air bag deactivation indicator light illuminates or is off under the
following conditions:
Condition detected by
the front passenger
occupant classifi cation
system Front passenger air bag
deactivation indicator light Front passenger front
and side air bags Front passenger seat
belt pretensioner
system
Empty (Not occupied) On Deactivated Deactivated
Child or child-restraint
system
*1 On Deactivated Deactivated
Adult
*2 Off Ready Ready
*1 If a larger child sits on the front passenger seat, the sensors might detect the child as being an adult depending
on the child's physique.
*2 If a smaller adult sits on the front passenger seat, the sensors might detect the person as being a child depending
on the person's physique.
The curtain air bag is ready for infl ating regardless of the chart above.
If the front 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 front passenger seat and consult an Authorized Mazda Dealer as soon as
possible. The system may not work properly in an accident.
WARNING
Do not decrease the total seated weight on the front passenger seat:
When an adult or large child sits on the front passenger seat, decreasing the total seated
weight on the front passenger seat required for air bag deployment is dangerous. The
front passenger seat weight sensors will detect the reduced total seated weight condition
and the front passenger front and side air bags and seat belt pretensioner system will
not deploy during an accident. The front passenger will not have the supplementary
protection of the air bag, which could result in serious injury. Decreasing the total seated
weight on the front passenger seat could result in an air bag not deploying under the
following conditions, for example:
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2–58
Essential Safety Equipment
SRS Air Bags
 


¾ A front passenger is seated as shown in the following fi gure:



¾ A rear passenger pushes up on the front passenger seat with their feet.



¾ Luggage or other items placed under the front passenger seat or between the front
passenger seat and driver seat that push up the front passenger seat bottom.
 


¾ Any accessories which might decrease the total seated weight on the front passenger
seat are attached to the front passenger seat.
  The front passenger front and side air bags and seat belt pretensioner systems will
deactivate if the front passenger air bag deactivation indicator light illuminates.


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2–59
Essential Safety Equipment
SRS Air Bags
Do not increase the total seated weight on the front passenger seat:
When an infant or small child sits on the front passenger seat, increasing the total seated
weight on the front passenger seat is dangerous. The front passenger seat weight sensors
will detect the increased total seated weight, which could result in the unexpected
deployment of the front 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 front passenger seat could result in the front passenger front and side air bags and
seat belt pretensioner system deployment in an accident under the following conditions,
for example:
 


¾ Luggage or other items are placed on the seat with the child in the child-restraint
system.
 


¾ A rear passenger or luggage push or pull down on the front passenger seatback.



¾ A rear passenger steps on the front passenger seat rails with their feet.



¾ Luggage or other items are placed on the seatback or hung on the head restraint.



¾ Heavy items are placed in the seatback map pocket.



¾ The seat is washed.



¾ Liquids are spilled on the seat.



¾ The front passenger seat is moved backward, pushing into luggage or other items
placed behind it.
 


¾ The front passenger seatback contacts the rear seat.



¾ Luggage or other items are placed between the front passenger seat and driver seat.



¾ Any accessories which might increase the total seated weight on the front passenger
seat are attached to the front passenger seat.
CAUTION
 


¾ To assure proper deployment of the front air bag and to prevent damage to the sensors in
the front seat bottoms:
 


¾ Do not place sharp objects on the front seat bottoms or leave heavy luggage on them.



¾ Do not spill any liquids on the front seats or under the front seats.




¾ To allow the sensors to function properly, always perform the following:




¾ Adjust the front seats as far back as possible and always sit upright against the
seatbacks with seat belts worn properly.
 


¾ If you place your child on the front passenger seat, secure the child-restraint system
properly and slide the front passenger seat as far back as possible (page 2-30 ).
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2–60
Essential Safety Equipment
SRS Air Bags
NOTE
 


y The system requires about 10 seconds to alternate between turning the front passenger
front and side air bags and seat belt pretensioner system on or off.
 


y The front passenger air bag deactivation indicator light may illuminate repeatedly if
luggage or other items are put on the front passenger seat, or if the temperature of the
vehicle's interior changes suddenly.
 


y The front passenger air bag deactivation indicator light may illuminate for 10 seconds if
the total seated weight on the front passenger seat changes.
 


y The air bag/front seat belt pretensioner system warning light might illuminate if the front
passenger seat receives a severe impact.
 


y If the front passenger air bag deactivation indicator light does not illuminate after
installing a child-restraint system on the front passenger seat, fi rst, re-install your child-
restraint system according to the procedure in this owner's manual. Then, if the front
passenger air bag deactivation indicator light still does not illuminate, install the child-
restraint system on the rear seat and consult an Authorized Mazda Dealer as soon as
possible.
 


y If the front passenger air bag deactivation indicator light illuminates when an adult is
seated in the front passenger seat, have the passenger re-adjust their posture by sitting
with their feet on the fl oor, and then re-fastening the seat belt. If the front passenger air
bag deactivation indicator light still illuminates, move the passenger to the rear seat.
If sitting in the rear seat is not possible, slide the front passenger seat as far back as
possible. Consult an Authorized Mazda Dealer as soon as possible.
Driver and Front Passenger Buckle Switches
The buckle switches on the front seat belts detect whether or not the front seat belts are
securely fastened and further control the deployment of the air bags.
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2–61
Essential Safety Equipment
SRS Air Bags
Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:
 


y Crash sensors, and diagnostic module (SAS unit)



y Front air bag sensors



y Air bag modules



y Side crash sensors



y Air bag/Front seat belt pretensioner system warning light



y Front seat belt pretensioners



y Related wiring
(With Front Passenger Occupant Classifi cation System)




y Front passenger air bag deactivation indicator light



y Front passenger seat weight sensors



y Front passenger seat weight sensor control module



y Front passenger seat belt buckle switches
The diagnostic module continuously monitors the system's readiness. This begins when the
ignition is switched ON and continues while the vehicle is being driven.
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