2013 MAZDA MODEL MX-5 MIATA PRHT warning light

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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 2-32)
Side inflators and air bagsí
Passenger air bag deactivation indicator light (page 2-37)
Passenger seat weight sensors (page 2-37)
Passenger seat weight sensor control module
Driver and passenger seat belt buckle switches (page 2-40)
Driver seat slide position sensor (page 2-37)
Essential Safety Equipment
SRS Air Bags
2-29íSome models.
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Form No.8CM3-EA-12F

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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 2-34).
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 2-37).
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.
2-32
Essential Safety Equipment
íSome models.
SRS Air Bags
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Form No.8CM3-EA-12F

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Driver and Passenger Occupant Classification System
First, please read“Supplemental Restraint System (SRS) Precautions ”(page 2-25)
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 2-32).
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
2-37
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Form No.8CM3-EA-12F

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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.
Essential Safety Equipment
SRS Air Bags
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CAUTION
ØTo assure proper deployment of the front air bag and to prevent damage to the
sensors in the seat bottoms:
ØDo not place sharp objects on the seat bottoms or leave heavy luggage on
them.
ØDo not spill any liquids on the seats or under the seats.
Ø To allow the sensors to function properly, always perform the following:
ØAdjust the seats as far back as possible and always sit upright against the
seatbacks with seat belts worn properly.
ØIf you place your child on the passenger seat, secure the child-restraint system
properly and slide the passenger seat as far back as possible.
NOTE
lThe system requires about 10 seconds to alternate between turning the passenger front and side
air bags and seat belt pretensioner system on or off.
lThe passenger air bag deactivation indicator light may illuminate repeatedly if luggage or other
items are put on the passenger seat, or if the temperature of the vehicle's interior changes
suddenly.
lThe passenger air bag deactivation indicator light may illuminate for 10 seconds if the total
seated weight on the passenger seat changes.
lThe air bag seat belt pretensioner system warning light might illuminate if the passenger seat
receives a severe impact.
lIf the passenger air bag deactivation indicator light illuminates when an adult is seated in the
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 passenger air bag deactivation indicator light still
illuminates, slide the passenger seat as far back as possible. Consult an Authorized Mazda Dealer
as soon as possible.
q Driver and 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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Essential Safety Equipment
SRS Air Bags
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Form No.8CM3-EA-12F

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Monitoring and Maintenance
qConstant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:
lCrash sensors, and diagnostic module (SAS unit)lFront air bag sensorlAir bag moduleslSide crash sensorsí
lAir bag/Seat belt pretensioner system warning lightlSeat belt pretensionerslRelated wiringlFront passenger air bag deactivation indicator lightlDriver seat slide position sensorlFront passenger seat weight sensorslFront passenger seat weight sensor control module
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.
q Maintenance
The air bag systems do not require regular maintenance. But if any of the following occurs,
take your vehicle to an Authorized Mazda Dealer as soon as possible:
lThe air bag system warning light flashes.lThe air bag system warning light remains illuminated.lThe air bag system warning light does not illuminate when the ignition is switched ON.lThe air bags have deployed.lPassenger air bag deactivation indicator light does not illuminate when the ignition is
switched ON or does not illuminate as indicated in the chart. For more details about this
indicator light and this chart, refer to “Passenger seat weight sensors ”(page 2-37).
Essential Safety Equipment
SRS Air Bags
2-41íSome models.
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Form No.8CM3-EA-12F

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CAUTION
ØBecause the advanced key uses low-intensity radio waves, it may not function
correctly under the following conditions:
ØThe advanced key is carried with communication devices such as cellular
phones.
ØThe advanced key contacts or is covered by a metal object.
ØThe advanced key is near electronic devices such as personal computers or cell
phones.
ØNon-Mazda genuine electronic equipment is installed in the vehicle.
ØThere is equipment which discharges radio waves near the vehicle.
ØIf the vehicle is near equipment such as wireless pay devices installed at certain
gas stations.
Ø The advanced key may consume battery power excessively if it receives high-
intensity radio waves. Do not place the advanced key near electronic devices such
as televisions or personal computers.
Ø To avoid damage to the advanced key, DO NOT:
ØDrop the advanced key.
ØGet the advanced key wet.
ØDisassemble the advanced key.
ØExpose the advanced key to high temperatures on places such as the
dashboard or hood, under direct sunlight.
ØPlace heavy objects on the advanced key.
ØPut the advanced key in an ultrasonic cleaner.
ØPut any magnetized objects close to the advanced key.
NOTE
lBattery life is about one year. Be sure to replace the battery as soon as you see the green KEY
indicator light in the instrument cluster begin flashing for 30 seconds after turning off the engine,
otherwise, you will not be able to start the engine using the advanced keyless start system once the
battery is completely dead. Refer to KEY Warning Light (Red)/KEY Indicator Light (Green) (with
Advanced Key) on page 5-49. If this occurs, you will have to use the auxiliary key if you need to
start the engine immediately.Refer to Advanced Key Battery Dead Warning on page 3-20.
lAdditional advanced keys can be obtained at an Authorized Mazda Dealer. Up to 6 advanced keys
can be used with the advanced keyless functions per vehicle.
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Knowing Your Mazda
Advanced Keyless Entry and Start System
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Form No.8CM3-EA-12F

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To lock
To lock the doors, press the request
switch. A beep sound will be heard once
and the hazard warning lights will flash
once.
NOTE
(Without theft-deterrent system)
The hazard warning lights will flash once to
indicate that the doors are locked.
(With theft-deterrent system)
The hazard warning lights only flash when the
theft deterrent system is armed.
The hazard warning lights do not flash if both
the doors are locked before the theft-deterrent
system is properly armed.
Refer to Theft-Deterrent System on page 3-71.
To unlock
Driver's door request switch
To unlock the driver's door, press the
request switch. A beep sound will be
heard twice and the hazard warning lights
will flash twice.
To unlock both doors, press the request
switch again within 3 seconds and two
more beep sounds will be heard.
NOTE
(Without theft-deterrent system)
The hazard warning lights will flash twice to
indicate that the doors are unlocked.
(With theft-deterrent system)
The hazard warning lights only flash when the
theft deterrent system is turned off.
The hazard warning lights do not flash unless
the theft deterrent system has been properly
turned off.
Refer to Theft-Deterrent System on page 3-71.
Passenger door request switch
To unlock the doors, press the request
switch. A beep sound will be heard twice
and the hazard warning lights will flash
twice.
Knowing Your Mazda
Advanced Keyless Entry and Start System
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Form No.8CM3-EA-12F