2021 MAZDA MODEL 3 HATCHBACK trunk

NOTE
To prevent the transmitter from being
left in the vehicle, make sure that you
carry the transmitter before locking.
After locking by pressing the
door-lock switch and when all the
doors are closed with the transmitter
left in the vehicle, all the doors,
liftgate, and fuel-filler lid are
unlocked.
After locking by pressing the
door-lock switch and when the
liftgate/trunk lid is closed last with
the transmitter left in the vehicle,
only the liftgate/trunk lid is
unlocked.

Door-lock switch on liftgate (With the
advanced keyless function)
All doors, fuel- filler lid, and the liftgate
can be locked by pressing the
door-lock switch.

When locking using the door-lock
switch, press the door-lock switch with
all of the following conditions met and
then close the liftgate.
You are carrying the transmitter.The ignition is switched OFF.All the doors are closed.
(With theft-deterrent system)
When locking, a beep sound operates
1 time.
When the liftgate closes, the hazard
warning lights operate 1 time.

(Without theft-deterrent system)
When locking, the hazard warning
lights and a beep sound operate 1
time.
NOTE
To prevent the transmitter from being
left in the vehicle, make sure that you
carry the transmitter before locking.
After locking by pressing the
door-lock switch and when the
liftgate is closed with the transmitter
left in the vehicle, the liftgate is
unlocked.
▼ Auto Lock/Unlock Function
WARNING
Do not pull the inner handle on a
front door:
Pulling the inner handle on a front
door while the vehicle is moving is
dangerous. Passengers can fall out of
the vehicle if the door opens
accidentally , which could result in
death or serious injury.
When the vehicle speed exceeds 20
km/h (12 mph), all the doors,
fuel- filler lid, and liftgate lock
automatically.
When the ignition is switched o ff, all
the doors, fuel-filler lid, and liftgate
unlock automatically.
The auto lock/unlock function settings
can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
Before Driving
Doors and Locks
3-17
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

▼Rear Door Child Safety Locks
Rear doors that have been locked
using the child safety lock switched to
the lock side cannot be opened from
inside the vehicle.
For child safety, switch the child safety
lock on both rear doors to the lock
side.
When opening a rear door with the
child safety lock switched to the lock
side, pull the outer door handle with
the lock knob inside the vehicle
switched to the unlock side.
1. Auxiliary key (page 3-2)
2. Lock
3. Unlock
Liftgate/Trunk Lid
▼Liftgate/Trunk Lid
WARNING
Never allow a person to ride in the
luggage compartment/trunk:
Allowing a person to ride in the
luggage compartment/trunk is
dangerous. The person in the luggage
compartment/trunk could be seriously
injured or killed during sudden braking
or a collision.
Do not drive with the liftgate/trunk
lid open:
Exhaust gas in the cabin of a vehicle is
dangerous. An open liftgate/trunk lid
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/trunk lid 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 a
ffect 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.
Before Driving
Doors and Locks
3-19
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

CAUTION
Before opening the liftgate/trunk lid,
remove any snow and ice
accumulation on it. Otherwise, the
liftgate/trunk lid could close under
the weight of the snow and ice
resulting in injury.
 Be careful when opening/closing the
liftgate/trunk lid during strong
winds. If a strong gust blows against
the liftgate/trunk lid, it could close
suddenly resulting in injury.
 Fully open the liftgate/trunk lid and
make sure that it stays open. If the
liftgate/trunk lid 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/trunk,
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
aff ect the liftgate
operation.
1. Damper stay
 Do not modify or replace the liftgate
damper stay. Consult an Authorized
Mazda Dealer if a liftgate damper
stay is deformed or damaged for
reasons such as a collision or if there
is some other problem.
▼ Opening and Closing the Liftgate/
Tr u n k L i d
Opening the liftgate (5–door)
Using the electric liftgate opener
Unlock the doors and liftgate, then
press the electric liftgate opener on the
liftgate and raise the liftgate when the
latch releases.
NOTE
(With the advanced keyless function)
A locked liftgate can also be opened
while the key is being carried.
When opening the liftgate with the
doors and the liftgate locked, it may
require a few seconds for the liftgate
latch to release after the electric
liftgate opener is pressed.
Before Driving
Doors and Locks
3-20
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

The liftgate can be closed when the
doors are locked with the key left in
the vehicle. However, to prevent
locking the key in the vehicle, the
liftgate can be opened by pressing
the electric liftgate opener. If the
liftgate cannot be opened despite
doing this procedure, first push the
liftgate completely closed, then press
the electric liftgate opener to fully
open the liftgate.
When the liftgate latch is released by
pressing the electric liftgate opener,
the liftgate raises slightly. If the
liftgate is not operated for a certain
period of time, the liftgate cannot be
raised.
To o p e n
Press the electric liftgate opener
again.
To c l o s e
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 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/Trunk Lid
Cannot be Opened on page 7-48.
Opening the trunk lid (4–door)
Using the trunk lid release button
Push the trunk lid release button.

Using the electric trunk lid opener
(With the advanced keyless function)
A trunk lid can also be opened while
the key is being carried.
Press the electric trunk lid opener on
the trunk lid, then raise the trunk lid
when the latch releases.

NOTE
When opening the trunk lid with the
doors locked, it may require a few
seconds for the trunk lid latch to
release after the electric trunk lid
opener is pressed.
Before Driving
Doors and Locks
3-21
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

The trunk lid can be closed when the
doors are locked with the key left in
the vehicle. However, to prevent
locking the key in the vehicle, the
trunk lid can be opened by pressing
the electric trunk lid opener. If the
trunk lid cannot be opened despite
doing this procedure, press the
electric trunk lid opener to fully open
the trunk lid after pushing the trunk
lid completely closed.
If the vehicle battery is dead or there
is a malfunction in the electrical
system and the trunk lid cannot be
unlocked, the trunk lid can be
opened by performing the
emergency procedure.
Refer to When Liftgate/Trunk Lid
Cannot be Opened on page 7-48.
Closing the liftgate/trunk lid
Lower the liftgate/trunk lid slowly
using the liftgate/trunk lid grip recess,
then push the liftgate/trunk lid closed
using both hands.
Do not slam it. Pull up on the liftgate/
trunk lid to make sure it is secure.
(5–door)
(4–door)
WARNING
Do not drive the vehicle with the
liftgate-ajar warning indication
displayed :
Otherwise, the liftgate/trunk lid may
open unexpectedly and result in an
accident.
NOTE
Con firm that the liftgate/trunk lid is
securely closed.
Move the liftgate/trunk lid without
pressing the electric liftgate/trunk lid
opener to verify that the liftgate/trunk
lid has not been left ajar.
▼ Luggage Compartment
Luggage compartment cover (5-door)
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.
Before Driving
Doors and Locks
3-22
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

Inside Trunk ReleaseLever (4-door)
*
▼Inside Trunk Release Lever
Your vehicle is equipped with an inside
trunk release lever that provides a
means of escape for children and
adults in the event they become locked
inside the trunk.

No matter how careful adults might be
with keys and locking their cars,
parents should be aware that children
may be tempted to play around
vehicles and use the trunk as a hiding
place.

Adults are advised to familiarize
themselves with the operation and
location of the inside trunk release
lever so that all children can be told
about it in an appropriate way, keeping
in mind that most vehicles do not have
such levers.
WARNING
Close the trunk lid, be sure the seat
backs are latched and do not allow
children to play inside the vehicle:
Leaving the trunk lid open or leaving
children in the vehicle with the keys is
dangerous. Children could open the
trunk lid and climb inside resulting in
possible injury or death from heat
exposure.
Always keep the car from being a
tempting place to play by latching the
rear seats, doors and the trunk, and
keeping the keys where children can
not play with them:
Leaving children or animals unattended
in a parked vehicle is dangerous.
Babies left sleeping and children who
lock themselves in cars or trunks can
die very quickly from heat prostration.
Do not leave your children or pets
alone in a car at any time. Do not leave
the car, the rear folding seats or the
trunk unlocked.
▼
Opening the Trunk Lid from the
Inside
Slide the inside trunk release lever in
the direction of the arrow. The lever is
made of material that will glow for
hours in the darkness of the trunk
following a brief exposure to ambient
light.

The inside trunk release lever is located
on the inside of the trunk lid.
Before Driving
Doors and Locks
3-24*Some models.
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

CAUTION
Always use only a genuine Mazda
fuel- filler cap or an approved
equivalent, available at an
Authorized Mazda Dealer. The
wrong cap can result in a serious
malfunction of the fuel and emission
control systems.
(U.S.A. and Canada)
It may also cause the check engine
light in the instrument cluster to
illuminate.
 When using an automatic car wash
or a high water pressure car washer,
lock the driver's door. Otherwise,
the fuel- filler lid may open
unexpectedly and could be
damaged.
▼ Refueling
Before refueling, close all the doors,
windows, and liftgate/trunk lid, and
switch the ignition OFF.
1. Using the following , unlock the
driver’s door.
Transmitter (page 3-16)Touch sensor (page 3-13)Door-lock switch (page 3-16)Auto lock/unlock function (page
3-17)
NOTE
When unlocking the driver's
door, the fuel lid is also unlocked
at the same time.
When locking the driver's door,
the fuel lid is locked after 90
seconds.
The time until the fuel lid is
locked after locking the driver's
door can be changed.
Refer to the Settings section in
the Mazda Connect Owner's
Manual.
However, when the driver's door
is locked using the following
functions, the fuel lid is also
locked at the same time.
Auto lock/unlock function
(page 3-17)
Auto re-lock function (page
3-5) and (page 3-13)
2. Press the location shown in the illustration and open the fuel lid.

3. To remove the fuel- filler cap, turn it
counterclockwise.
4. Attach the removed cap to the inner side of the fuel-filler lid.

4–door
1. Fuel- filler lid
2. Fuel- filler cap

Before Driving
Fuel and Emission
3-28
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

Theft-Deterrent System*
▼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/trunk lid.
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/trunk lid is
unlocked with the transmitter.
(With the advanced keyless function)
The lights and horn can also be
deactivated by touching the sensing
area of the door release touch sensor.
NOTE
If the battery goes dead while the
theft-deterrent system is armed, the
horn will activate and the hazard
warning lights will flash when 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/trunk lid are
closed.
4. Press the lock button on the transmitter.
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)
Touch the sensing area of the door
lock touch sensor.

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
3-42*Some models.
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34