2021 MAZDA MODEL CX-30 ECU

If the front passenger air bag
deactivation indicator light
illuminates when an adult is seated
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 still
illuminates, 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.
▼Driver and Front 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.
Constant Monitoring
▼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 Driver and Front Passenger
Occupant Classification System)
Driver seat slide position sensor*
Front passenger occupant
classification sensor
Front passenger occupantclassification module
Front passenger air bag deactivation
indicator light
Front passenger seat belt buckle
switch

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.
Essential Safety Equipment
SRS Air Bags
*Some models.2-71
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3Before Driving
Use of various features, including keys, doors, mirrors and
windows.
Keys........................................ 3-2 Keys...................................... 3-2
Keyless Entry System...............3-4
Advanced Keyless Entry
System.....................................3-9 Advanced Keyless Entry
System
*................................. 3-9
Operational Range...............3-10
Doors and Locks..................... 3-11 Door Locks.......................... 3-11
Liftgate................................ 3-20
Fuel and Emission................... 3-30 Fuel and Engine Exhaust
Precautions......................... 3-30
Fuel-Filler Lid and Cap..........3-32
Mirrors.................................. 3-35 Mirrors................................3-35
Windows............................... 3-39 Power Windows...................3-39
Moonroof
*.......................... 3-42
Security System.......................3-45Modification and Add-
On Equipment..................... 3-45
Immobilizer System..............3-45
Theft-Deterrent System
*........3-47
Driving Tips............................ 3-49 Break-In Period.................... 3-49
Saving Fuel and Protection of the
Environment........................ 3-49
Hazardous Driving............... 3-50
Floor Mat............................ 3-51
Rocking the Vehicle..............3-52
Winter Driving..................... 3-52
Driving In Flooded Area........3-54
Overloading........................ 3-55
Driving on Uneven Road.......3-55
Turbocharger Information
(SKYACTIV-G 2.5T).............. 3-56
Towing.................................. 3-57 Trailer Towing...................... 3-57
Recreational Towing............. 3-57
*Some models.3-1
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Door Locks
▼Door Locks
WARNING
Always take all children and pets with
you or leave a responsible person
with them:
Leaving a child or a pet unattended in
a parked vehicle is dangerous. In hot
weather, temperatures inside a vehicle
can become high enough to cause
brain damage or even death.
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.
Keep all doors locked when driving:
Unlocked doors in a moving vehicle
are dangerous. Passengers can fall out
if a door is accidentally opened and
can more easily be thrown out in an
accident.
Always close all the windows and
moonroof, lock the doors,
fuel-filler
lid, and liftgate and take the key with
you when leaving your vehicle
unattended:
Leaving your vehicle unlocked is
dangerous as children could lock
themselves in a hot vehicle, which
could result in death. Also, a vehicle
left unlocked becomes an easy target
for thieves and intruders.
After closing the doors and the
liftgate, always verify that they are
securely closed:
Doors and the liftgate not securely
closed are dangerous, if the vehicle is
driven with a door and the liftgate not
securely closed, the door and the
liftgate could open unexpectedly
resulting in an accident.
Always confirm the safety around the
vehicle before opening a door and the
liftgate:
Suddenly opening a door and the
liftgate is dangerous. A passing vehicle
or a pedestrian could be hit and cause
an accident.
CAUTION
 Always confirm the conditions
around the vehicle before opening/
closing the doors and the liftgate and
use caution during strong winds or
when parked on an incline. Not
being aware of the conditions
around the vehicle is dangerous
because fingers could get caught in
the door and the liftgate or a passing
pedestrian could be hit, resulting in
an unexpected accident or injury.
Before Driving
Doors and Locks
3-11
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▼Unlocking with Auxiliary Key
Only the driver's door can be unlocked
using the auxiliary key.
Refer to Keys on page 3-2.
Insert the auxiliary key while the
driver's door handle is pulled and turn
the key to the unlock side. Turn the
auxiliary key back to its original
position before removing it.
NOTE
If you attempt to open the driver’s
door using an unauthorized auxiliary
key, the key cylinder will spin around
but the door will not unlock.
▼Locking , Unlocking with Touch
Sensor, Door Handle (With the
advanced keyless function)
By touching the sensing area of the
touch sensor, various locking/
unlocking operations can be done
without taking the key out of a bag or
pocket.
There are two types of touch sensors
used for locking and unlocking, and
each sensor is built into the outer door
handle on the driver and front
passenger's doors.
1. Sensing area of door lock touch
sensor (Depression on outer side of
door handle)
2. Sensing area of door release touchsensor (Inner side of door handle)
NOTE
When locking/unlocking with the
transmitter carried, securely touch
the sensing area of the touch sensor
as follows.
Locking
Unlocking
The system may not operate normally
under the following conditions.
You touch the sensing area of the
door lock touch sensor and the
sensing area of the door release
touch sensor at the same time.
You touch the sensing area of the
touch sensor whil e wearing gloves.
Foreign matter such as snow or dirt
is stuck on the sensing area of the
touch sensor.
Before Driving
Doors and Locks
3-13
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NOTE
Confirm that all the doors and
liftgate are securely locked.
For the liftgate, move it without
pressing the electric liftgate opener
to verify that the liftgate has not been
left ajar.
A beep sound is heard for
confirmation when the doors,
fuel-filler lid, and liftgate are locked/
unlocked using the touch sensor. If
you prefer, the beep sound can be
turned off.
The volume of the beep sound can
also be changed. Refer to the
Settings section in the Mazda
Connect Owner's Manual.
(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 3-47.
The setting can be changed so that
the doors, fuel-filler lid, and liftgate
are locked automatically without
touching the sensing area of the
touch sensor.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(Walk-away auto lock function)
A beep sound is heard when all
doors and the liftgate are closed
while the transmitter is being carried.
All the doors, fuel-filler lid, and
liftgate are locked automatically
when the transmitter is out of the
operational range. Also, the hazard
warning lights flash once. (Even if the
driver is in the operational range, all
the doors, fuel-filler lid, and liftgate
are locked automatically after about
30 seconds.) If you are out of the
operational range before the doors
and the liftgate are completely
closed or another transmitter is left
in the vehicle, the walk-away auto
lock function will not work. Always
make sure that all doors and the
liftgate are closed and locked before
leaving the vehicle. The walk-away
auto lock function does not close the
power windows.
(Auto re-lock function)
After unlocking with the touch
sensor, all the doors , fuel-filler lid,
and liftgate will automatically lock if
any of the following operations are
not performed within about 60
seconds.
Opening a door or the liftgate.Switching the ignition to any
position other than off.
If your vehicle has a theft-deterrent
system, the hazard warning lights will flash for confirmation.
The time required for the doors to
lock automatically can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
Before Driving
Doors and Locks
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Liftgate
▼Liftgate
WARNING
Never allow a person to ride in the
luggage compartment:
Allowing a person to ride in the
luggage compartment is dangerous.
The person in the luggage
compartment could be seriously
injured or killed during sudden braking
or a collision.
Do not drive with the liftgate open:
Exhaust gas in the cabin of a vehicle is
dangerous. An open liftgate in a
moving vehicle will cause exhaust gas
to be drawn into the cabin. This gas
contains CO (carbon monoxide),
which is colorless,
odorless, and highly
poisonous, and it can cause loss of
consciousness and death. Moreover,
an open liftgate could cause occupants
to fall out in an accident.
Do not stack or leave loaded luggage
unsecured in the luggage
compartment:
Otherwise, the luggage may move or
collapse, resulting in injury or an
accident. In addition, do not load
luggage higher than the seatbacks. It
may affect the side or rear field of view.
Additionally, if the air bags deploy, the
cargo may scatter which could result in
serious injury or death.
CAUTION
 Before opening the liftgate, remove
any snow and ice accumulation on it.
Otherwise, the liftgate could close
under the weight of the snow and ice
resulting in injury.
 Be careful when opening/closing the
liftgate during strong winds. If a
strong gust blows against the liftgate,
it could close suddenly resulting in
injury.
 Fully open the liftgate and make sure
that it stays open. If the liftgate is
only opened partially, it could slam
shut by vibration or wind gusts
resulting in injury.
 When loading or unloading luggage
in the luggage compartment, turn
off
the engine. Otherwise, you could get
burned by the heat of the exhaust
gas.
 Be careful not to apply excessive
force to the damper stay on the
liftgate such as by putting your hand
on the stay. Otherwise, the damper
stay may bend and
affect the liftgate
operation.
1. Damper stay
Before Driving
Doors and Locks
3-20
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Closing the liftgate
Lower the liftgate slowly using the
liftgate grip recess, then push the
liftgate closed using both hands.
Do not slam it. Pull up on the liftgate
to make sure it is secure.
For the power liftgate operation, refer
to Power Liftgate on page 3-22.
WARNING
Do not drive the vehicle with the
liftgate-ajar warning indication
displayed :
Otherwise, the liftgate may open
unexpectedly and result in an accident.
NOTE
Confirm that the liftgate is securely
closed.
Move the liftgate without pressing the
electric liftgate opener to verify that the
liftgate has not been left ajar.
▼Powe r L i ft g ate*
The power liftgate opens/closes
electrically by operating the switches in
the vehicle or the buttons on the
keyless entry system transmitter.
WARNING
Be sure to watch the power liftgate as
it opens or closes, and make sure that
it closes completely:
Opening or closing the power liftgate
while not watching it move is
dangerous. Because of unseen
obstacles and the jam-safe feature, a
liftgate may not close completely and,
if left unnoticed, could result in serious
injury or death if an occupant were to
fall out of the vehicle.
Always be sure that the area around
the liftgate is clear before activating it.
Always confirm the safety of the area
around the power liftgate before
operating it electrically.
Not checking the area around the
liftgate for people before operating it
using the power liftgate switch or the
button on the keyless entry system is
dangerous. A person could become
caught between the liftgate and an
obstruction while it is opening
electrically or between the liftgate and
vehicle while it is closing electrically,
resulting in an accident and serious
injury.
Before Driving
Doors and Locks
3-22*Some models.
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WARNING
When closing a liftgate, always keep
hands and fingers away from the
liftgate:
Placing hands or fingers around a
liftgate is dangerous because the
liftgate closes automatically from the
near-shut position, which could cause
hands and fingers to be pinched and
injured.
NOTE
If the electric liftgate opener is
pressed while the easy closure
function is operating , the liftgate can
be opened.
If the liftgate is opened/closed
repeatedly in a short period of time,
the easy closure function may not
operate. Wait for about 2 seconds
and then try again.
▼ Luggage Compartment
Luggage compartment cover*
WARNING
Do not place anything on top of the
cover:
Placing luggage or other cargo on top
of the luggage compartment cover is
dangerous. During sudden braking or a
collision, the cargo could become a
projectile that could hit and injure
someone.
Make sure luggage and cargo are
secured before driving:
Not securing cargo while driving is
dangerous as it could move or be
crushed during sudden braking or a
collision and cause injury.
CAUTION

Make sure the luggage compartment
cover is firmly secured. If it is not
firmly secured, it could unexpectedly
disengage resulting in injury.
The luggage compartment can be
accessed by opening the liftgate when
the straps are attached to the sides of
the liftgate.

Before Driving
Doors and Locks
3-28*Some models.
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