2024 MAZDA CX90 sensor

Air bag structural view
1. Seat belt pretensioners
2. Side and curtain inflators and air bags
3. Side crash sensors
4. Driver/Front passenger inflators and air bags
5. Air bag/seat belt pretensioner system warning indication/warning light
6. Driver/Front passenger knee inflators and air bags
7. Front passenger air bag deactivation indicator light
8. Front air bag sensors
9. Roll-over sensor, crash sensors, and diagnostic module (SAS unit)
10.Front passenger seat weight sensors
11.Front passenger seat weight sensor control module
12.Seat belt buckle switches
Equipment to Protect Occupants/Pedestrians
SRS Air Bags
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Driver and Front
Passenger Occupant
Classification System
The Driver and Front Passenger
Occupant
Classification System
reduces the possibility of injury due to
the deployment of the driver air bag
and the front passenger airbag by
determining the deployment energy of
the driver air bag and whether or not
the front passenger airbag should be
deployed based on the driver seat slide
position sensor and the front
passenger seat weight sensor.
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's seat is forward of or behind 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's
air bag depending on how close the
driver's seat is to the steering wheel.
During an impact of moderate severity,
the driver's air bag deploys with lesser
energy, whereas during more severe
impacts and when the driver's seat is
behind the reference position, it
deploys with more energy.
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
knee 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 knee air bags,
and also the seat belt pretensioner
system when the front passenger air
bag deactivation indicator light
illuminates.
Equipment to Protect Occupants/Pedestrians
SRS Air Bags
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Warnings and Cautionsfor Using the Front
Pa s s e n g e r O cc u p a n t
Classification System
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 knee air bags,
and the 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.

A front passenger is seated as shown
in the following figure.
A rear passenger pushes up on the
front passenger seat with their feet.
 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.
Equipment to Protect Occupants/Pedestrians
SRS Air Bags
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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 knee air bags, and the seat
belt pretensioner system will
deactivate if the front passenger air
bag deactivation indicator light
illuminates.

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
knee 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
knee air bags, and seat belt
pretensioner system deployment in an
accident under the following
conditions, for example.
 Luggage or other items are placed on
the seat with the child in the
child-restraint system.
 A rear passenger or luggage push or
pull down on the front passenger
seatback.
 A rear passenger steps on the front
passenger seat rails with their feet.
 Luggage or other items are placed on
the seatback or hung on the head
restraint.Heavy items are placed in the
seatback map pocket.
 The seat is washed.
 Liquids are spilled on the seat.
 The front passenger seat is moved
backward, pushing into luggage or
other items placed behind it.
 The front passenger seatback
contacts the rear seat.
 Luggage or other items are placed
between the front passenger seat
and driver seat.
 Any accessories which might increase
the total seated weight on the front
passenger seat are attached to the
front passenger seat.
CAUTION
To assure proper deployment of the
front air bag and to prevent damage
to the sensors in the front seat
bottoms.
 Do not place sharp objects on the
front seat bottoms 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
possible 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 3-30).
Equipment to Protect Occupants/Pedestrians
SRS Air Bags
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How to Use the FrontPa s s e n g e r O cc u p a n t
Classification System
This system shuts off the front
passenger front and side air bags and
knee 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/seat belt pretensioner
system warning light turns on/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
knee 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 knee air
bags, and seat belt pretensioners will
not deploy during a collision.
If the front passenger weight sensors
are normal, the indicator light
illuminates when the vehicle power is
switched ON. The light turns off after a
few seconds. Then, the indicator light
illuminates or is
off under the following
conditions:
Front passenger air bag deactivation
indicator light on/off condition chart
Condition
detected by the
front pas-
senger oc-
cupant
classifica- tion sys- tem Front pas-
senger air
bag deacti-
vation indi- cator light Front pas-
senger
front and
side andknee air bags Front
passen-
ger seat
belt pre-
tensioner system
Empty
(Not occu-
pied) On
Deactivat-
ed Deacti-
vated
Child or
child-re-
straint sys-
tem
*1
On Deactivat-
ed Deacti-
vated
Adult
*2Off 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 inflating
regardless of what the front passenger air bag
deactivation indicator light on/off condition
chart indicates.

If the front passenger air bag
deactivation indicator light does not
illuminate when the vehicle power is
switched ON and does not illuminate
as indicated in the front passenger air
bag deactivation indicator light on/off
condition 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.
Equipment to Protect Occupants/Pedestrians
SRS Air Bags
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A system malfunction or operation
conditions are indicated by a warning.
Refer to Air Bag/Seat Belt Pretensioner
System Warning Light on page 8-47.
In addition, the pretensioner system
for the front passenger, like the front
and side passenger air bag, is designed
to only deploy in accordance with the
total seated weight on the front
passenger seat.
For details, refer to the front passenger
seat weight sensors (page 3-16).
Load limiting system
If the vehicle receives a strong impact
from the front of the vehicle, the load
limiting system operates to prevent the
seat belts from applying an excessive
load. By maintaining the load applied
to the seat belt to a specified level, the
system reduces impact to an
occupant's chest.
Even if the pretensioners have not
fired, the load limiting function must
be checked by an Authorized Mazda
Dealer.
NOTE
The pretensioner system operates if
the vehicle receives a strong impact
from the vehicle front or side
direction. The system may not
operate if the impact is weak.
Some smoke might be released
when the pretensioner system
operates, but this does not mean
there is a fire. This gas normally has
no effect on occupants. However,
those with sensitive skin may
experience light skin irritation. If
residue from the operation of the
pretensioner system gets on the skin
or in the eyes, wash it off as soon as
possible.
Warnings and Cautions
for Using the Seat Belts
WARNING
Always wear your seat belt and make
sure all occupants are properly
restrained.
Not wearing a seat belt is extremely
dangerous. During a collision,
occupants not wearing seat belts could
hit someone or things inside the
vehicle or even be thrown out of the
vehicle. They could be seriously injured
or even killed. In the same collision,
occupants wearing seat belts would be
much safer.

In a rollover crash, an unbelted person
is significantly more likely to die than a
person wearing a seat belt.

Do not wear twisted seat belts.
Twisted seat belts are dangerous. In a
collision, the full width of the belt is
not available to absorb the impact.
This puts more force on the bones
beneath the belt, which could cause
serious injury or death. So, if your seat
belt is twisted, you must straighten the
seat belt to remove any twists and to
allow the full width of the belt to be
used.
Equipment to Protect Occupants/Pedestrians
Seat Belts
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How to Use the DrivingPo s i t i on M e m o r y
A driving position can be programmed
to the position memory switch and the
key.
Programming
1. Switch the vehicle power ON.
2. Adjust the following driving positions to the desired positions.
Driver's seatActive driving displayOutside mirrorsSteering wheel (Power type)
3. Continue pressing the SET switch until a sound is activated.
4. Do the following operation within 5seconds after the sound is activated
to program the driving position.
Programming to a position
memory button
Press the button you want to
program, either 1 or 2 button.
Programming to the transmitter
Press the unlock button on the
transmitter.
A sound is activated when the
operation is completed correctly.
Adjusting to the Programmed Driving
Po s i t io n
Operation Using the Position Memory
Switch
Press either switch 1 or 2 that you
programmed to activate the seat
adjustment to your position.
A sound is activated when the
adjustment to the programmed driving
position is completed.
Operation Using the Key
1. Unlock the driver's door using one of the following methods.
Touch the sensing area of the
door release touch sensor.
Press the key unlock button.
2. If the driver's door is opened within a certain period of time after
unlocking, adjustment of the next
driving position starts.
Driver's seatActive driving displayOutside mirrorsSteering wheel (Power type)
A sound is activated when the
adjustment to the programmed
driving position is completed.
Equipment to Protect Occupants/Pedestrians
Front Seats
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Child-restraint Systems
Mazda strongly urges the use of
child-restraint systems for children
small enough to use them.

You are required by law to use a
child-restraint system for children in
the U.S. and Canada.
Check your local and state or
provincial laws for specific
requirements regarding the safety of
children riding in your vehicle.

Whatever child-restraint system you
consider, please pick the appropriate
one for the age and size of the child,
obey the law and follow the
instructions that come with the
individual child-restraint system.

A child who has outgrown
child-restraint systems should sit in the
rear and use seat belts, both lap and
shoulder. If the shoulder belt crosses
the neck or face, move the child closer
to the center of the vehicle in the
outboard seats, and towards the
buckle on the right if the child is seated
on the center seat.

Statistics confirm that the rear seat is
the best place for all children up to 12
years of age, and more so with a
supplemental restraint system (air
bags).

A rear-facing child-restraint system
should NEVER be used on the front
seat with the air bag system activated.
The front passenger's seat is also the
least preferred seat for other
child-restraint systems.

To reduce the chance of injuries
caused by deployment of the front
passenger air bag , the front passenger
seat weight sensors occupant
classification sensor works as a part of
the supplemental restraint system. This
system deactivates the front passenger
front and side air bags and knee air
bags, and also the front passenger seat
belt pretensioner system when the
front passenger air bag deactivation
indicator light illuminates.

When an infant or small child sits on
the front passenger seat, the system
shuts off the front passenger front and
side air bags and knee air bags, and
seat belt pretensioner system, so make
sure the front passenger air bag
deactivation indicator light illuminates.

Even if the front passenger air bag is
shut off, Mazda strongly recommends
that children be properly restrained
and child-restraint systems of all kinds
are properly secured on the rear seats
which are the best place for children.
Equipment to Protect Occupants/Pedestrians
Child-restraint Systems
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