2021 MAZDA MODEL CX-3 battery

In the storage compartments such as
the glove compartment or the center
console
Next to a communication device such
as a mobile phone
When the ignition is switched to ACC or
ON, the vehicle lock-out prevention
feature prevents you from locking
yourself out of the vehicle.
All doors and the liftgate will
automatically unlock if they are locked
using the power door locks with any
door or the liftgate open.
The vehicle lock-out prevention feature
does not operate while the ignition is
switched off.
When all doors and the liftgate are
locked using the power door lock with
any door or the liftgate open, the closed
doors and the liftgate are locked. After
that, when all doors and the liftgate are
closed, all doors and the liftgate are
locked. However, if the key is inside the
vehicle, all doors and the liftgate are
automatically unlocked.
(With the advanced keyless function)
The beep sound is heard for about 10
seconds to notify the driver that the key
has been left in the vehicle.
(Without the advanced keyless
function)
The horn sound is heard twice to notify
the driver that the key has been left in
the vehicle.
(Door unlock (control) system with
collision detection)
This system automatically unlocks the
doors and the liftgate in the event the
vehicle is involved in an accident to
allow passengers to get out of the
vehicle immediately and prevent being
trapped inside. While the ignition is
switched ON and in the event the vehicle
receives an impact strong enough to
inflate the air bags, all the doors and the
liftgate are automatically unlocked after
about 6 seconds have elapsed from the
time of the accident.
The doors and the liftgate may not
unlock depending on how an impact is
applied, the force of the impact, and
other conditions of the accident.
If door-related systems or the battery is
malfunctioning, the doors and the
liftgate may not unlock depending on
your vehicle type.
▼Locking, Unlocking with Auxiliary
Key
Turn the auxiliary key toward the front to
lock, toward the
back to unlock.
To l o c k
All doors and the liftgate lock
automatically when the driver's door is
locked using th e auxiliary key.
To u n l o c k
The driver’s door unlocks when the
auxiliary key is turned briefly to the
unlock position and then immediately
returned to the center position.
All doors and the liftgate unlock when the
driver's door is unlocked and the auxiliary
Before Driving
Doors and Locks
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To close the liftgate from its slightly
raised position, open it first by pressing
the electric liftgate opener, then close it
after waiting at least 1 second.
If the liftgate is not fully closed, the
driver is notified by a warning indicated
in the instrument cluster.
If the vehicle battery is dead or there is
a malfunction in the electrical system
and the liftgate cannot be unlocked, the
liftgate can be opened by performing the
emergency procedure.
Refer to When Liftgate Cannot be
Opened on page 7-47.
Closing the liftgate
CAUTION
(With luggage board)
When closing the liftgate, return the
luggage board to its original position. If the
liftgate is closed with the luggage board
standing upright, the luggage
compartment cover could be damaged.
Lugg age compartment cover
Lugg age board
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.
Liftgate grip recess
NOTE
Confirm that the liftgate is securely closed.
The liftgate, move it without pressing the
electric liftgate opener to verify that the
liftgate has not been left ajar.
▼Luggage Compartment
Luggage compartment cover*
WA R N I N G
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.
Before Driving
Doors and Locks
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NOTE
Power window system initialization
procedure
If the battery was disconnected during
vehicle maintenance, or for other reasons
(such as a switch continues to be operated
after the window is fully open/closed), the
window will not fully open and close
automatically.
The power window auto function will only
resume on a power window that has been
reset.
1. Switch the ignition ON.
2. Make sure that the power window lockswitch located on the driver's door is
not depressed.
3. Press the switch and fully open the
window.
4. Pull up the switch to fully close the window and continue holding the
switch for about 2 seconds after the
window fully closed.
5. Make sure that the power windows operate correctly using the door
switches.
▼Jam-safe Window
If foreign matter is detected between the
window and the window frame while the
window is closing automatically (refer to
Auto-opening/Closing on page 3-31), the
window stops closing and automatically
opens partway.
NOTE
The jam-safe function may operate
under the following conditions:
A strong impact is detected while the
window is closing automatically.
Window is closing automatically in
very low temperatures.
In the event the jam-safe function
activates and the power window cannot
be closed automatically, pull and hold
the switch and the window will close.
The jam-safe window function does not
operate until the system has been reset.
Before Driving
Windows
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Theft-Deterrent System*
If the theft-deterrent system detects an
inappropriate entry into the vehicle, which
could result in the vehicle or its contents
being stolen, the alarm alerts the
surrounding area of an abnormality by
sounding the horn and flashing the hazard
warning lights.

The system will not function unless it's
properly armed. So when you leave the
vehicle, follow the arming procedure
correctly.
▼ Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights flash for about 30
seconds when the system is triggered by
any one of the following:
Unlocking a door with
the auxiliary key,
door lock switch, or an inside door-lock
knob.
Forcing open a door, the hood or the
liftgate.
Opening the hood by operating the hood
release handle.
Switching the ignition ON without using
the push button start.
If the system is triggered again, the lights
and horn will activate until the driver's
door or the liftgate is unlocked with the
transmitter.
(With the advanced keyless function)
The lights and horn can also be
deactivated by pressing the request switch
on a door.
NOTE
The liftgate does not open while the
theft-deterrent system is operating.
If the battery goes dead while the
theft-deterrent system is armed, the horn
will activate and the hazard warning
lights will flash wh en the battery is
charged or replaced.
▼ How to Arm the System
1. Close the windows and the moonroof*
securely.
2. Switch the ignition OFF.
3. Make sure the hood, the doors, and the liftgate are closed.
4. Press the lock button on the transmitter or lock the driver's door from the
outside with the auxiliary key.
The hazard warning lights will flash
once.
The following method will also arm
the theft-deterrent system:
Press the door-lock switch “
” while
any door is open and then close all of
the doors.
(With the advanced keyless function)
Press a request switch.

The security indicator light in the
instrument cluster flashes twice per
second for 20 seconds.
5. After 20 seconds, the system is fully armed.
Before Driving
Security System
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Rocking the Vehicle
WA R N I N G
Do not spin the wheels at more than 56
km/h (35 mph), and do not allow anyone
to stand behind a wheel when pushing the
vehicle:
When the vehicle is stuck, spinning the
wheels at high speed is dangerous. The
spinning tire could overheat and explode.
This could cause serious injuries.
CAUTION
Too much rocking may cause engine
overheating, transaxle failure, and tire
damage.
If you must rock the vehicle to free it from
snow, sand or mud, depress the accelerator
slightly and slowly move the shift lever/
selector lever from 1 (D) to R position.
Winter Driving
Carry emergency gear, including tire
chains, window scraper, flares, a small
shovel, jumper cables, and a small bag of
sand or salt.
Ask an Authorized Mazda Dealer to check
the following:
Have the proper ratio of antifreeze in the
radiator.
Refer to Engine Coolant on page 6-25.
Inspect the battery and its cables. Cold
reduces battery capacity.
Use an engine oil appropriate for the
lowest ambient temperatures that the
vehicle will be driven in (page 6-22).
Inspect the ignition system for damage
and loose connections.
Use washer fluid made with
antifreeze ―but do not use engine
coolant antifreeze for washer fluid (page
6-27).
NOTE
Remove snow before driving. Snow left
on the windshield is dangerous as it
could obstruct vision.
Do not apply excessive force to a
window scraper when removing ice or
frozen snow on the mirror glass and
windshield.
Never use warm or hot water for
removing snow or ice from windows and
mirrors as it could result in the glass
cracking.
Before Driving
Driving Tips
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Ignition Switch
▼Push Button Start Positions
The system operates only when the driver
is in the vehicle or within operational
range while the key is being carried.
Each time the push button start is pressed,
the ignition switches in the order of off,
ACC, and ON. Pressing the push button
start again from ON switches the ignition
off.
Push button start Indicator light
NOTE
The engine starts by pressing the push
button start while depressing the clutch
pedal (manual transaxle) or the brake
pedal (automatic transaxle). To switch
the ignition position, press the push
button start without depressing the
pedal.
Do not leave the ignition switched ON
while the engine is not running. Doing
so could result in the battery going
dead. If the ignition is left in ACC (For
automatic transaxle, the selector lever is
in the P position, and the ignition is in
ACC), the ignition switches off
automatically after about 25 minutes.
Off
The power supply to electrical devices
turns off and the push button start
indicator light (amber) also turns off.
WA R N I N G
Before leaving the driver's seat, always
switch the ignition
off, set the parking
brake, and make sure the selector lever is in
P (automatic transaxle) or in 1st gear or R
(manual transaxle):
Leaving the driver's seat without switching
the ignition off, setting the parking brake,
and shifting the selector lever to P
(automatic transaxle) or to 1st gear or R
(manual transaxle) is dangerous.
Unexpected vehicle movement could occur
which could result in an accident.
In addition, if your intention is to leave the
vehicle for even a short period, it is
important to switch the ignition off, as
leaving it in another position will disable
some of the vehicle's security systems and
run the battery down.
ACC (Accessory)
Some electrical accessories will operate
and the indicator light (amber) illuminates.
NOTE
The keyless entry system does not function
while the push button start has been
pressed to ACC, and the doors will not
lock/unlock even if they have been locked
manually.
ON
This is the normal running position after
the engine is started. The indicator light
(amber) turns off. (The indicator light
When Driving
Start/Stop Engine
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(amber) illuminates when the ignition is
switched ON and the engine is not
running.)
Some indicator lights/warning lights
should be inspected before the engine is
started (page 4-21).
NOTE
When the push button start is pressed to
ON, the sound of the fuel pump motor
operating near the fuel tank can be heard.
This does not indicate an abnormality.
Starting the Engine
WA R N I N G
Radio waves from the key may affect
medical devices such as pacemakers:
Before using the key near people who use
medical devices, ask the medical device
manufacturer or your physician if radio
waves from the key w ill affect the device.
NOTE
The key must be carried because the key
carries an immobilizer chip that must
communicate with the engine controls at
short range.
The engine can be started when the push
button start is pressed from off, ACC, or
ON.
The push button start system functions
(function which can start the engine by
only carrying the key) can be
deactivated to prevent any possible
adverse effect on a user wearing a
pacemaker or other medical device. If
the system is deactivated, you will be
unable to start the engine by carrying
the key. Consult an Authorized Mazda
Dealer for details. If the push button
start system functions have been
deactivated, you can start the engine by
following the procedure indicated when
the key battery goes dead.
Refer to Engine Start Function When
Key Battery is Dead on page 4-8.
After starting a cold engine, the engine
speed increases and a whining sound
from the engine compartment can be
heard.
When Driving
Start/Stop Engine
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This is for improved exhaust gas
purification and does not indicate any
parts defect.
Engine-starting is controlled by the
spark ignition system.
This system meets all Canadian
Interference-Causing Equipment
Standard requirements regulating the
impulse electrical field strength of radio
noise.
1. Make sure you are carrying the key.
2. Occupants should fasten their seat belts.
3. Make sure the parking brake is on.
4. Continue to press the brake pedal firmly until the engine has completely
started.
5. (Manual transaxle)
Continue to press the clutch pedal
firmly until the engine has completely
started.
(Automatic transaxle)
Put the vehicle in park (P). If you must
restart the engine while the vehicle is
moving, shift into neutral (N).
NOTE
(Manual transaxle)
The starter will not operate if the
clutch pedal is not depressed
sufficiently.
(Automatic transaxle)
The starter will not operate if the
selector lever is not in P or N and the
brake pedal is not depressed
sufficiently.
6. Verify that the KEY indicator light (green) in the inst rument cluster and
the push button start indicator light
(green) illuminate.

Indicator light
Push button start
NOTE
If the push button start indicator
light (green) flashes, make sure that
the key is being carried.
If the push button start indicator
light (green) flashes with the key
being carried, touch the key to the
push button start and start the
engine. Refer to Engine Start
Function When Key Battery is Dead
on page 4-8.
When Driving
Start/Stop Engine
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