SRS Air Bags
Supplementary Restraint System Components
(With Front Passenger Occupant Classification System)

(Without Front Passenger Occupant Classification System)

Driver/Front passenger inflators and air bags
Roll-over sensor (Some Models), crash sensors, and diagnostic module (SAS unit)
Seat belt pretensioners (Search)
Front air bag sensors
Side crash sensors
Air bag/seat belt pretensioner system warning light (Search)
Side and curtain inflators and air bags
Front passenger air bag deactivation indicator light (Some Models) (Search)
Front passenger occupant classification sensor (Some Models) (Search)
Front passenger occupant classification module (Some Models)
Driver seat slide position sensor (Some Models) (Search)
Seat Belt Pretensioners
The pretensioners operate differently depending on what types of air bags are equipped. For more details about seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria (Search).
Front
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a roll-over accident (with roll-over sensor) is detected.
Rear Outboard (Some Models)
The rear outboard seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
Front Passenger Air Bag
The front passenger air bag is mounted in the front passenger instrument panel.
The inflation mechanism for the front passenger air bag is the same as the driver's air bag.
For more details about air bag deployment, refer to "SRS Air Bag Deployment Criteria" (Search).
(With Front Passenger Occupant Classification System)
In addition, the front passenger air bag is designed to only deploy when the front passenger occupant classification sensor detects a passenger sitting on the front passenger's seat. For details, refer to the front passenger occupant classification system (Search).

Side Air Bags
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" (Search).
(With Front Passenger Occupant Classification System)
In addition, the front passenger side air bag is designed to only deploy when the front passenger occupant classification sensor detects a passenger sitting on the front passenger's seat. For details, refer to the front passenger occupant classification system (Search).

Curtain Air Bags
The curtain air bags are mounted in the front and rear window pillars, and the roof edge along both sides.
When the air bag crash sensors detect a side impact of greater than moderate force, the curtain air bag inflates quickly and helps to reduce injury mainly to the rear outboard passenger's head 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" (Search).
In a side impact:
Greater than moderate impact to one side of the vehicle will cause the curtain air bag on that side only to inflate.

(With roll-over sensor)
In a roll-over:
In response to a vehicle roll-over, both curtain air bags inflate.

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 |
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A severe frontal/near frontal collision |
A severe side collision*2 |
A roll-over/near roll-over*3 |
A rear collision |
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Front seat belt pretensioner |
X*1 |
X*1 |
X |
No air bag and seat belt pretensioner will be activated in a rear collision. |
Rear seat belt pretensioner (Some Models) |
X |
X |
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Driver air bag |
X |
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Front passenger air bag |
X*1 |
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Side air bag |
X*1 (impact side only) |
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Curtain air bag |
X (impact side only) |
X (both sides) |
X: The SRS air bag equipment is designed to deploy in a collision.
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(With Front Passenger Occupant Classification System)
The front passenger front and side air bags and the seat belt pretensioner are designed to deploy when the front passenger occupant classification sensor detects a passenger sitting on the front passenger's seat.
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In a side collision, the seat belt pretensioners and the side/curtain air bags deploy.
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(With roll-over sensor)
In a roll-over accident, the seat belt pretensioners and the curtain air bags deploy.
In a frontal offset collision, the equipped air bags and pretensioners may all deploy depending on the direction, angle, and rate of impact.
Front Passenger Occupant Classification System (Some Models)
First, please read "Supplementary Restraint System (SRS) Precautions" (Search) carefully.
Front Passenger Occupant Classification Sensor
Your vehicle is equipped with a front passenger occupant classification sensor as a part of the supplementary restraint system. This sensor is equipped in the front passenger's seat cushion. This sensor measures the electrostatic capacity of the front passenger's 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 OFF indicator light turns on.
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 OFF indicator light turns on. 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 turns on according to the following table.
The air bag/seat belt pretensioner system warning light flashes and the front passenger air bag deactivation OFF 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 lights
These indicator lights turn on to remind you that the front passenger front and side air bags and seat belt pretensioner will or will not deploy during a collision.

If the front passenger occupant classification sensor is normal, both indicator lights turn on when the ignition is switched ON. The lights turn off after a few seconds. Then, the indicator lights turn on or off under the following conditions:
Front passenger air bag deactivation indicator light on/off condition chart
Condition detected by the front passenger occupant classification system |
Front passenger air bag deactivation indicator light |
Front passenger front and side air bags |
Front passenger seat belt pretensioner system |
---|---|---|---|
Empty (Not occupied) |
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Deactivated |
Deactivated |
A child is seated in a child-restraint system*1 |
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Deactivated |
Deactivated |
Adult*2 |
![]() Turns off after a short period of time. |
Ready |
Ready |
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The occupant classification sensor may not detect a child seated on the seat, in a child-restraint system, or a junior seat depending on the child's physical size and seated posture.
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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 inflating regardless of what the front passenger air bag deactivation indicator light on/off condition chart indicates.
If both of the front passenger air bag deactivation indicator lights do not turn on for a specified period of time when the ignition is switched ON or they do not turn on as indicated in the front passenger air bag deactivation indicator light on/off condition chart, do not allow an occupant to sit in the front passenger seat and consult an Authorised Mazda Repairer as soon as possible. The system may not work properly in an accident.
Do not allow an occupant in the front passenger's seat to sit with a posture which makes it difficult for the front passenger occupant classification sensor to detect the occupant correctly:
Sitting in the front passenger's seat with a posture which makes it difficult for the front passenger occupant classification sensor to detect the occupant correctly is dangerous. If the front passenger occupant classification sensor cannot detect the occupant sitting on the front passenger's seat correctly, the front passenger front and side air bags and pretensioner system may not operate (non-deploy) or they may operate (deploy) accidentally. The front passenger will not have the supplementary protection of the air bags or the accidental operation (deployment) of the air bags could result in serious injury or death.
Under the following conditions, the front passenger occupant classification sensor cannot detect a passenger sitting on the front passenger's seat correctly and the deployment/non-deployment of the air bags cannot be controlled as indicated in the front passenger air bag deactivation indicator light on/off condition chart. For example:
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A front passenger is seated as shown in the following figure:
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A rear passenger pushes up on the front passenger seat with their feet.
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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.
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An object, such as a seat cushion, is put on the front passenger's seat or between the passenger's back and the seatback.
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A seat cover is put on the front passenger's seat.
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Luggage or other items are placed on the seat with the child in the child-restraint system.
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A rear passenger or luggage push or pull down on the front passenger seatback.
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Luggage or other items are placed on the seatback or hung on the head restraint.
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The seat is washed.
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Liquids are spilled on the seat.
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The front passenger seat is moved backward, pushing into luggage or other items placed behind it.
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The front passenger seatback contacts the rear seat.
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Luggage or other items are placed between the front passenger seat and driver seat.
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An electric device is put on the front passenger's seat.
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An additional electrical device, such as a seat warmer is installed to the surface of 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 OFF indicator light turns on.
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To assure proper deployment of the front air bag and to prevent damage to the sensor in the front seat cushion:
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Do not place sharp objects on the front seat cushion or leave heavy luggage on them.
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Do not spill any liquids on the front seats or under the front seats.
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To allow the sensors to function properly, always perform the following:
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Adjust the front seats as far back as possible and always sit upright against the seatbacks with seat belts worn properly.
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If you place your child on the passenger seat, secure the child-restraint system properly and slide the passenger seat as far back as possible within the position in which the child-restraint system can be installed.
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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.
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The front passenger air bag deactivation OFF indicator light may turn on repeatedly if luggage or other items are put on the front passenger seat, or if the temperature of the vehicle's interior changes suddenly.
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The front passenger air bag deactivation OFF indicator light may turn on for 10 seconds if the electrostatic capacity on the front passenger seat changes.
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The air bag/seat belt pretensioner system warning light might turn on if the front passenger seat receives a severe impact.
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If the front passenger air bag deactivation OFF indicator light does not turn on after installing a child-restraint system on the front passenger seat, first, re-install your child-restraint system according to the procedure in this owner's manual. Then, if the front passenger air bag deactivation OFF indicator light still does not turn on, install the child-restraint system on the rear seat and consult an Authorised Mazda Repairer as soon as possible.
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If the front passenger air bag deactivation OFF indicator light turns on when an occupant is seated directly in the front passenger seat, have the passenger re-adjust their posture by sitting with their feet on the floor, and then re-fastening the seat belt. If the front passenger air bag deactivation OFF indicator light remains turned on, 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 Authorised Mazda Repairer as soon as possible.
Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:
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Front air bag sensors
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Crash sensors, and diagnostic module (SAS unit)
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Side crash sensors
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Air bag modules
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Seat belt pretensioners
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Air bag/Seat belt pretensioner system warning light
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Related wiring
(With Front Passenger Occupant Classification System)
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Driver seat slide position sensor
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Front passenger occupant classification sensor
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Front passenger occupant classification module
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Front passenger air bag deactivation indicator light
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.