light MAZDA MODEL CX-3 2021 Owner's Manual

(Without Front Passenger Occupant Classification System)

Driver/Front passenger inflators and air bags
Roll-over sensor*, crash sensors, and diagnostic module (SAS unit)
Seat belt pretensioners (page 2-26)
Front air bag sensors
Side crash sensors
Air bag/front seat belt pretensioner system warning light (page 4-21)
Side and curtain inflators and air bags
Front passenger air bag deactivation indicator light* (page 2-66)
Front passenger occupant classification sensor* (page 2-66)
Front passenger occupant classification module*
Essential Safety Equipment
SRS Air Bags
2-58*Some models.
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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 2-63).
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.

Only one side curtain air bag will deploy on the
side of the vehicle that receives the force of an
impact.
(With Front Passenger Occupant 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 conditions are indicated by a warning.
Refer to Warning/Indicator Lights on page 4-21.
Essential Safety Equipment
SRS Air Bags
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Front Passenger Occupant Classification System*
First, please read "Supplemental Restraint System (SRS) Precautions" (page 2-51) 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 prevent the front pass enger 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 de ployment 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 pa ssenger 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 de activation indicator light
This indicator light turns on to remind you that the front passenger front and side air bags
and seat belt pretensioner wi ll not deploy during a collision.
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:
Essential Safety Equipment
SRS Air Bags
2-66*Some models.
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Front passenger air bag deactivation indicator 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) On Deactivated 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 child
depending on the person's physique.
The curtain air bag is ready for inflating rega rdless of what the front passenger air bag
deactivation indicator light on/ off condition chart indicates.
If the front passenger air bag deactivation indi cator light does not turn on when the ignition
is switched ON and does 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 Authorized Mazda Dealer as soon as possible. The system may not work
properly in an accident.
WARNING
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 cannot detect the occupant sitting on the front
passenger's seat correctly, the front passeng er 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 prot ection 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:
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 fr ont seats or under the front seats.
 To allow the sensors to function pr operly, 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 passe nger seat, secure the child-restraint system
properly and slide the front passenger seat as far back as possible (page 2-43).
NOTE
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.
The front passenger air bag deactivation indicator light may turn on repeatedly if luggage
or other items are put on the front passenger se at, or if the temperature of the vehicle's
interior changes suddenly.
The front passenger air bag deactivation indicator light may turn on for 10 seconds if the
electrostatic capacity on the front passenger seat changes.
The air bag/front seat belt pr etensioner 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 turn 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 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 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 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 Occupa nt 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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Keys
WA R N I N G
Do not leave the key in your vehicle with
children and keep them in a place where
your children will not find or play with
them:
Leaving children in a vehicle with the key is
dangerous. This could result in someone
being badly injured or even killed. Children
may find these keys to be an interesting toy
to play with and could cause the power
windows or other controls to operate, or
even make the vehicle move.
CAUTION
Because the key (transmitter) uses
low-intensity radio waves, it may not
function correctly under the following
conditions:
 The key is carried with communication
devices such as cellular phones.
 The key contacts or is covered by a
metal object.
 The key is near electronic devices such
as personal computers.
 Non-Mazda genuine electronic
equipment is installed in the vehicle.
 There is equipment which discharges
radio waves near the vehicle.
 The key (transmitter) may consume
battery power excessively if it receives
high-intensity radio waves. Do not place
the key near electronic devices such as
televisions or personal computers.
 To avoid damage to the key
(transmitter), DO NOT:
 Drop the key.
 Get the key wet.
 Disassemble the key.
 Expose the key to high temperatures
on places such as the dashboard or
hood, under direct sunlight.
 Expose the key to any kind of magnetic
field.
 Place heavy objects on the key.
 Put the key in an ultrasonic cleaner.
 Put any magnetized objects close to
the key.
NOTE
The driver must carry the key to ensure the
system functions properly.
Auxiliary key
Transmitter
Removing the auxiliary key
1. Remove the lower cover while
pressing the knob in the direction of
the arrow.
Before Driving
Keys
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Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors and
the liftgate.
The system can start the engine without
having to take the key out of your purse or
pocket.
It can also help you signal for attention or
help.
Operating the theft-deterrent system is
also possible on theft-deterrent
system-equipped vehicles.

System malfunctions or warnings are
indicated by the following warning lights
or beeps.
KEY Warning Light (Red)
Refer to Contact Authorized Mazda
Dealer and Have Vehicle Inspected on
page 7-29.
Refer to Taking Action on page 7-33.
Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page 7-43.
Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-43.
If you have a problem with the key,
consult an Authorized Mazda Dealer.

If your key is lost or stolen, consult an
Authorized Mazda Dealer as soon as
possible for a replacement and to make the
lost or stolen key inoperative.
CAUTION
Radio equipment like this is governed by
laws in the United States.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user's authority
to operate the equipment.
NOTE
The keyless entry system operation may
vary due to local conditions.
The keyless entry system is fully
operational (door/liftgate lock/unlock)
when the ignition is switched off. The
system does not operate if the ignition is
switched to any position other than off.
If the key does not operate when
pressing a button or the operational
range becomes too small, the battery
may be weak. To install a new battery,
refer to Key Battery Replacement (page
6-34).
Battery life is about 1 year. Replace the
battery with a new one if the KEY
indicator light (green) flashes in the
instrument cluster. Replacing the battery
about once a year is recommended
because the KEY warning light/
indicator light may not illuminate or
flash depending on the rate of battery
depletion.
Before Driving
Keys
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Additional keys can be obtained at an
Authorized Mazda Dealer. Up to 6 keys
can be used with the keyless functions
per vehicle. Bring all keys to the
Authorized Mazda Dealer when
additional keys are required.
▼Tr a n s m i t t e r
Operation
buttons
Operation indicator light
NOTE
The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light on page 4-45.
(With theft-deterrent system)
The hazard warning lights flash when
the theft-deterrent system is armed or
turned off.
Refer to Theft-Deterrent System on page
3-38.
(With the advanced keyless function)
A beep sound can be heard for
confirmation when the doors and the
liftgate are locked/unlocked using the
key. If you prefer, the beep sound can be
turned off.
The volume of the beep sound can also
be changed.
Refer to Personalization Features on
page 9-9.
Use the following procedure to change the
setting.
1. Switch the igniti
on off and close all of
the doors and the liftgate.
2. Open the driver's door.
3. Within 30 seconds of opening the
driver's door, press and hold the LOCK
button on the key for 5 seconds or
longer (All of the doors and the liftgate
are locked and unlocked when the
LOCK button on the key is pressed and
held for 5 seconds.).
The beep sound activates at the
currently set volume. The setting
changes each time the LOCK button on
the key is pressed and the beep sound
activates at the set volume. (If the beep
sound has been set to not activate, it
will not activate.)
4. The setting change is completed by doing any one of the following:
Switching the ignition to ACC or
ON.
Closing the driver's door.
Opening the liftgate.
Not operating the key for ten
seconds.
Pressing any button except the
LOCK button on the key.
Pressing a request switch.
The operation indicator light flashes when
the buttons are pressed.
Lock button
To lock the doors and the liftgate, press the
lock button and the hazard warning lights
will flash once.
Before Driving
Keys
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(With the advanced keyless function)
A beep sound will be heard once.

To confirm that all doors and the liftgate
have been locked, press the lock button
again within 5 seconds. If they are closed
and locked, the horn will sound.
NOTE
The doors and the liftgate can be locked
by pressing the lock button while any
other door or the liftgate is open. The
hazard warning lights will not flash.
When the lock button is pressed while
any door is open and then the door is
closed, all the doors and the liftgate are
locked.
Confirm that all doors and the liftgate
are locked visually or audibly by use of
the double click.
Make sure all doors and the liftgate are
locked after pressing the button.
(With theft-deterrent system)
When the doors are locked by pressing
the lock button on the key while the
theft-deterrent system is armed, the
hazard warning lights will flash once to
indicate that the system is armed.
Unlock button
To unlock the driver's door, press the
unlock button and the hazard warning
lights will flash twice.
(With the advanced keyless function)
A beep sound will be heard twice.

To unlock all doors and the liftgate, press
the unlock button again within three
seconds and two more beep sounds will be
heard.
NOTE
The system can be set to unlock all
doors by performing a single operation.
Refer to Personalization Features on
page 9-9.
Use the following procedure to change
the setting.
1. Switch the ignition off and close all of the doors and the liftgate.
2. Open the driver's door.
3. Within 30 seconds of opening the driver's door, press and hold the
UNLOCK button on the key for 5
seconds or longer (the sound of the
doors locking/unlocking can be
heard).
After this, the system switches the
setting each time the UNLOCK
button is pressed (the sound of the
doors locking/unlocking can be
heard).
4. The setting change is completed by
doing any one of the following:
Switching the igni tion to ACC or
ON.
Closing the driver's door.
Opening the liftgate.
Not operating the key for ten
seconds.
Pressing any button except the
UNLOCK button on the key.
Pressing a request switch.
(Auto re-lock function)
Before Driving
Keys
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