sensor MAZDA MODEL CX-9 2021 User Guide

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.
▼ Front Seat Belt Pretensioners
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 is
detected. The pretensioners operate differen tly 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 (page 2-82).
▼ Driver Air Bag
The driver's air bag is mounted in the steering wheel.
When air bag crash sensors detect a frontal im
pact 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 2-82).
(With Front Passenger Occupa nt Classification System)
The driver's dual-stage air bag controls ai r 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.
▼ Front Passenger Air Bag
The front passenger air bag is mounted in the front passenger dashboard.
The inflation mechanism for the front passenger air bag is the same as the driver's air bag.
Essential Safety Equipment
SRS Air Bags
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For more details about air bag deployment, refer to "SRS Air Bag Deployment Criteria"
(page 2-82).
(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 fron t passenger occupant classification system (page 2-85).
▼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"
(page 2-82).
(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 passenge r occupant classification system (page 2-85).

Essential Safety Equipment
SRS Air Bags
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▼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"
(page 2-82).
In a side impact:
Greater than moderate impact to one side of th e vehicle will cause the curtain air bag on that
side only to inflate.

Only one side curtain air bag will deploy on the
side of the vehicle that receives the force of an
impact.
(With Front Passenger Occupa nt Classification System)
In a roll-over:
In response to a vehicle roll-over , both curtain air bags inflate.

Both curtain air bags will deploy after
the roll-over accident is detected.
▼ Warning Light/Beep
A system malfunction or operation co
nditions are indicated by a warning.
Essential Safety Equipment
SRS Air Bags
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Front Passenger Occupant Classification System*
First, please read "Supplemental Restraint System (SRS) Precautions" (page 2-69) carefully.
▼Front Passenger Occupant Classification Sensor
Your vehicle is equipped with a front passenger occupant classification sensor as a part of
the supplemental 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 preven
t the front passenger front and side air bags and seat belt
pretensioner system from deploying if the front passenger air bag deactivation 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 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/front seat belt pretensioner system warning light flashes 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 turns on to remind you that the front passenger front and side air bags
and seat belt pretensioner will not deploy during a collision.
Essential Safety Equipment
SRS Air Bags
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If the front passenger occupant classification sensor is normal, the indicator light turns on
when the ignition is switch ed ON. The light turns off af ter a few seconds. Then, the
indicator light turns on or is off under the following conditions:
Front passenger air bag deactivation i ndicator light on/off condition chart
Condition detected by the front
passenger occupant classifica ‐
tion system Front passenger air
bag deactivation indi ‐
cator light Front passenger front
and side air bags Front passenger seat
belt pretensioner sys ‐
tem
Empty (Not occupied) OnDeactivated Deactivated
A child less than 1 year old is
seated in a child-restraint system On
Deactivated Deactivated
Child
*1On or off Deactivated or ready Deactivated or ready
Adult
*2Off Ready Ready
*1 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.
*2 If a smaller adult sits on the front passenger seat, the sensors might detect the person as being a childdepending on the person's physique.
The curtain air bag is ready for inflating re gardless of what the front passenger air bag
deactivation indicator light on/off condition chart indicates.
If the front passenger air bag deactivation indicat or light does not turn on when the ignition
is switched ON and does not turn on as indi cated 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 Authorized Mazda Dealer as soon as possible. The system may not work
properly in an accident.
WA R N I N G
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 dete ct the occupant correctly is dangerous. If the
front passenger occupant classification sensor ca nnot detect the occupant sitting on the front
passenger's seat correctly, the front passenge r 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 su pplementary protection of the air bags or the accidental
operation (deployment) of the air bags co uld result in serious injury or death.
Under the following conditions, the front passe nger occupant classification sensor cannot
detect a passenger sitting on the front passe nger's seat correctly and the deployment/
non-deployment of the air bags cannot be contro lled as indicated in the front passenger air
bag deactivation indicator light on /off condition chart. For example:
Essential Safety Equipment
SRS Air Bags
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The front passenger front and side air bags and seat belt pretensioner systems will deactivate
if the front passenger air bag deactivation indicator light turns on.
CAUTION
 To assure proper deployment of the front air bag and to prevent damage to the sensor in
the front seat cushion:
 Do not place sharp objects on the front seat cushion or leave heavy luggage on them.
 Do not spill any liquids on the front seats or under the front seats.
 To allow the sensors to function properly, always perform the following:
 Adjust the front seats as far back as possibl e and always sit upright against the seatbacks
with seat belts worn properly.
 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 2-59).
NOTE
The system requires about 10 seconds to alte rnate between turning the front passenger
front and side air bags and seat belt pretensioner system on or off.
The front passenger air bag deactivation indicato r 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.
The front passenger air bag deactivation indicato r light may turn on for 10 seconds if the
electrostatic capacity on the front passenger seat changes.
The air bag/front seat belt pretensioner system warning light might turn on if the front
passenger seat receives a severe impact.
If the front passenger air bag deactivation 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 indicator light still does not tu rn on, install the child-restraint system on
the rear seat and consult an Authorized Mazda Dealer as soon as possible.
If the front passenger air bag deactivation i ndicator 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 th en re-fastening the seat belt. If the front
passenger air bag deactivation i ndicator light remains turned on, move the passenger to
the rear seat. If sitting in the rear seat is no t possible, slide the front passenger seat as far
back as possible. Consult an Authorized Mazda Dealer as soon as possible.
Essential Safety Equipment
SRS Air Bags
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Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:

Front air bag sensors
Crash sensors, and diagnostic module (SAS unit)
Side crash sensors
Air bag modules
Front seat belt pretensioners
Air bag/Front seat belt pretensioner system warning light
Related wiring
(With Front Passenger Occupant Classification System)
Front passenger occupant classification sensor
Front passenger occupant classification module
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 continue s while the vehicle is being driven.
Essential Safety Equipment
SRS Air Bags
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Hands-free liftgate*
When the hands-free liftgate sensor on the
center bottom of the rear bumper detects
foot movement (kick-activated liftgate),
the liftgate opens/closes automatically.
The liftgate can be opened/closed even
with both hands full, such as when
carrying baggage.
Operation conditions
Do the kicking motion with your foot
when all of the following conditions are
met while the vehicle is stopped.
(When ignition is switched OFF)
You are carrying the transmitter.
The hands-free liftgate is on.
(When ignition is switched ON)
You are carrying the transmitter.
The hands-free liftgate is on.
The selector lever is in the P position.
How to do the kicking motion
A: About 30 cm (12 in) B: About 10 cm (3.9 in)
A
B
1. Stand at the position about 30 cm (12 in) behind the center of the rear
bumper.
2. Move your foot to the position about 10 cm (3.9 in) from the center bottom
of the rear bumper.
3. Move your foot away from under the bumper within about 1 second after
moving it under the bumper.
When the kicking motion is done
correctly, the hazard warning lights flash 2
times, a beep sound is activated, and the
liftgate opens/closes automatically. Be
careful not to contact the liftgate.

If the kicking motion is done while the
liftgate is opening/closing automatically,
the liftgate will stop. If the kicking motion
is done again, the liftgate moves in the
direction opposite to the direction it was
moving before it stopped.
CAUTION
 Do not do the kicking motion while
wearing footwear such as sandals, or
with your bare foot. If your foot contacts
the hot exhaust pipe, it could cause
serious burns.
 Do not do the kicking motion while the
area where you are standing is unstable
such as a slope or icy road. Otherwise,
you could fall down, resulting in injury.
 Do not paint the rear bumper or install
any add-on equipment to it. Otherwise,
the hands-free liftgate sensor may not
operate normally.
Before Driving
Doors and Locks
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If you are carrying the transmitter
around the liftgate or there is another
person around the liftgate who is
carrying a transmitter, do not allow the
following to occur. Otherwise, the
hands-free liftgate sensor will operate
and the liftgate may open/close
unexpectedly resulting in an accident.
 A person not carrying a transmitter
does the kicking motion.
 While the liftgate is open, a person
sitting on the edge of the luggage
compartment swings his or her legs.
 Installing/removing the body cover or
removing snow around the rear
bumper.
 Picking up something which was
dropped under the rear bumper.
 Spraying water on the rear bumper
using a high water pressure car
washer.
 Pushing a shopping cart close to the
rear bumper.
 A moving object such as an animal or
a ball approaches the rear bumper.
To prevent an unintended operation,
place the transmitte r outside of its
operation range or turn off the
hands-free liftgate.
NOTE
The hands-free liftgate sensor detects in
a range of about 30 cm (12 in) on both
the left and right sides from the center of
the rear bumper.
The hands-free liftgate sensor may not
operate normally under the following
conditions.
Your foot remains placed within the
detection area.
You move your foot left and right
within the detection area.
The kicking motion is too fast or too
slow.
Your foot contacts the rear bumper
when doing the kicking motion.
You are wearing shoes such as rubber
boots which do not conduct electricity
well.
There is equipment emitting strong
radio waves near the vehicle.
The detection area of the hands-free
liftgate sensor is dirty.
When the detection area of the
hands-free liftgate sensor is dirty, wipe
it off with a clean cloth. Place the
transmitter outside of its operation
range or wipe off the area around the
sensor with a clean cloth after turning
off the hands-free liftgate.
If the operation using the hands-free
liftgate sensor is not possible even
though the operation conditions are met,
consult an Authorized Mazda Dealer.
Hands-free liftgate ON/OFF switching
The hands-free liftgate can be switched
on/off.
To prevent an unintended operation, turn
off the function.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
Before Driving
Doors and Locks
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Changing the power liftgate fully open
position
The power liftgate fully-open position can
be changed according to the height of a
garage.
When changing the position
1. Stop the liftgate at the desired position.
2. Press the power liftgate close switch
for about three seconds.
A beep sound is activated two times to
indicate that the position change has
been completed.
NOTE
Set the desired fully-open position of the
liftgate at the position where it is open
more than halfway. The position where it
is less than halfway open cannot be set.
To r e s e t
1. Open the liftgate.
2. Press the power liftgate close switchfor about seven seconds.
A beep sound is activated three times
to indicated that the reset has been
completed.
NOTE
After about 3 seconds have elapsed since
the switch was pressed, a beep sound is
activated 2 times to indicate that the
liftgate fully-open position has changed.
Continuously press the switch for about 7
seconds to complete the reset.
Jam-safe equipment
While the power liftgate is opening/
closing electrically and the system detects
a person or an object in the liftgate's path,
the liftgate will move in the reverse
direction automatically and stops.
WA R N I N G
Always check the area around the power
liftgate before opening/closing it:
Not checking for occupants and objects
around the power liftgate before opening/
closing it is dangerous. The jam-safe
equipment is designed to prevent jamming
in the event an obstruction is in the
liftgate's path. The system may not detect
certain objects obstructing the liftgate
depending on the way they are positioned
and their shape. However, if the jam-safe
function detects an obstruction and moves
the liftgate in the reverse direction, an
occupant in the liftgate's path could be
seriously injured.
CAUTION
Sensors are installed on both ends of the
power liftgate. Be careful not to allow the
sensors to be scratched or damaged by
sharp objects, otherwise the liftgate may
no longer open/close automatically. In
addition, if the sensor is damaged while the
liftgate is closing automatically, the system
will stop.
Sensor
Before Driving
Doors and Locks
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