Page 78 of 394
Black plate (78,1)
Replacing the transmitter battery
Integrated key type
1. Unfold the key (page 3-2).
2. Insert a small screwdriver into the slot
and push the tab to remove the key
from the transmitter.
Ta b
3. Insert a small screwdriver into the slot
and gently pry open the transmitter.
4. Press the portion of the battery
indicated by A and remove the battery.
A
NOTE
If it is difficult to remove the battery by
pressing with a finger, use a small screwdriver
to press out the battery.
5. Put in the new battery (CR1620 or
equivalent) with the positive pole (
)
facing down.
6. Align the front and back covers and
snap the transmitter shut.
7. Install the key to the transmitter.
3-6
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Doors and Locks
Mazda3_8X41-EA-07F_Edition1 Page78
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Page 79 of 394

Black plate (79,1)
Non-key type
1. Insert a small screwdriver into the slot
and gently pry open the transmitter.
Back cover Slot
2. Press the portion of the battery
indicated by A and remove the battery.
A
3. Install a new battery (CR2025 or
equivalent) into the front portion of the
holder with the positive pole (
)
facing up. Press on the B portion of the
battery to set the battery.
BBack cover
Front
cover
Front of
holder
4. Align the front and back covers and
snap the transmitter shut.
qService
If you have a problem with the keyless
entry system, consult an Authorized
Mazda Dealer.
If your transmitter is lost or stolen, bring
all remaining transmitters to an
Authorized Mazda Dealer as soon as
possible for a replacement and to make
the lost or stolen transmitter 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.
Knowing Your Mazda
Doors and Locks
3-7
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Page 80 of 394

Black plate (80,1)
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 keys 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. They could play with power
windows or other controls, or even
make the vehicle move.
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, lock the
doors and take the key with you when
leaving your vehicle unattended:
(Except 4 Door)
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.
(4 Door)
Leaving your vehicle unlocked is
dangerous as children could lock
themselves in a hot vehicle, or
become trapped by climbing into the
trunk, which could result in death.
Also, a vehicle left unlocked becomes
an easy target for thieves and
intruders.
qLocking, Unlocking with Key
The driver's door can be locked/unlocked
with the key.
Turn the key toward the front to unlock,
toward the back to lock.
Unlock
Lock
NOTE
If your vehicle is equipped with a front
passenger door key slot, the door can be
locked/unlocked with the key.
3-8
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Doors and Locks
Mazda3_8X41-EA-07F_Edition1 Page80
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Page 81 of 394

Black plate (81,1)
qLocking, Unlocking with
Transmitterí
The doors can be locked/unlocked by
operating the keyless entry system
transmitter, refer to Keyless Entry System
(page 3-3).
qLocking, Unlocking with Door-
Lock Knob
To lock any door from the inside, push the
door-lock knob.
To unlock, pull it out.
This does not operate the other door
locks.
UnlockLock
To lock any door with the door-lock knob
from the outside, push the door-lock knob
to the lock position and close the door.
This does not operate the other door
locks.
Door-lock knob
(Lock position)
NOTE
When locking the doors this way, be careful
not to leave the key inside the vehicle.
qPower Door Locksí
Vehicle lock-out prevention
The vehicle lock-out prevention feature
prevents you from locking yourself out of
the vehicle. With the key in the ignition
switch, all doors and the liftgate will
automatically unlock if they are locked
using the power door locks with either
front door open.
Knowing Your Mazda
Doors and Locks
3-9íSome models. Mazda3_8X41-EA-07F_Edition1 Page81
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Page 82 of 394

Black plate (82,1)
Locking, unlocking with key
All doors and the liftgate lock
automatically when the driver's door is
locked with the key. All doors and the
liftgate unlock when the driver's door is
unlocked and the key is held in the unlock
position for one second or longer.
Unlock
Lock
NOTE
Holding the key in the unlocked position in the
driver's door lock for about a second unlocks
all doors and the liftgate. To unlock only the
driver's door, insert the key into the driver's
door lock and turn the key briefly to the unlock
position and then immediately return it to the
center position.
Locking, unlocking with door-lock
switch
All doors and the liftgate lock
automatically when LOCK is pushed.
They all unlock when the unmarked part
of the door-lock switch is pushed.
Unlock
Lock
qRear Door Child Safety Locks
These locks are intended to help prevent
children from accidentally opening the
rear doors. Use them both whenever a
child rides in the vehicle.
If you insert the key and turn the child
safety lock to the lock position before
closing that door, the door cannot be
opened from the inside.
The door can be opened only by lifting
the outside handle.
Lock Unlock
3-10
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Doors and Locks
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Page 83 of 394

Black plate (83,1)
Liftgate (5 Door)
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.
qLocking, Unlocking with Key
The liftgate can be locked/unlocked by
inserting the key into the driver's door key
slot, refer to Power Door Locks (page
3-9).
qLocking, Unlocking with Transmitter
The liftgate can be locked/unlocked by
operating the keyless entry system
transmitter, refer to Keyless Entry System
(page 3-3).
qLocking, Unlocking with Door-
Lock Switch
The liftgate can be locked/unlocked by
operating the door-lock switch, refer to
Power Door Locks (page 3-9).
qOpening and Closing the Liftgate
Opening the liftgate
Pull the handle and lift up the liftgate.
Knowing Your Mazda
Doors and Locks
3-11
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Page 84 of 394

Black plate (84,1)
NOTE
If the vehicle battery is dead or there is a
malfunction in the electrical system and the
liftgate cannot be unlocked, perform the
following procedure as an emergency measure
to unlock it:
1. Remove the cap on the interior surface of
the liftgate with a flathead screwdriver.
Cap
2. Turn the lever to the right to unlock the
liftgate.
Lever
After performing this emergency measure,
have the vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Closing the liftgate
Use both hands to push the liftgate down
until the lock snaps shut. Do not slam it.
Pull up on the liftgate to make sure it is
securely latched.
qLuggage Compartment
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. The vehicle
has a light weight luggage
compartment cover to keep the
contents of your luggage area out of
sight; it will not retain heavy objects
that are not tied down in an accident
such as a rollover. Tie down all heavy
objects, whether luggage or cargo,
using the tie down hooks.
Make sure luggage and cargo is
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.
3-12
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Doors and Locks
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Form No.8X41-EA-07F
Page 85 of 394
Black plate (85,1)
Luggage compartment cover strap
The luggage compartment can be
accessed by opening the liftgate when the
straps are attached to the sides of the
liftgate.
Strap
Luggage compartment cover
The luggage compartment can be
accessed by opening the luggage
compartment cover from the inside of the
vehicle.
Latch
Latch
CAUTION
To prevent cargo from shifting while
driving or during sudden
deceleration, be careful of the
following:
ØDo not open the luggage
compartment cover while the
vehicle is moving.
ØDo not overload the luggage
compartment so that the cover
cannot be closed.
ØDo not allow cargo to interfere
with the luggage compartment
cover latch.
This cover can be removed for more
room. To do this, just unfasten the straps;
then lift and pull it out.
Knowing Your Mazda
Doors and Locks
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Form No.8X41-EA-07F