2015 MAZDA MODEL 3 5-DOOR ECU

2–61
Essential Safety Equipment
SRS Air Bags
NOTE
 y 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.
 y The front passenger air bag deactivation indicator light may illuminate repeatedly if
luggage or other items are put on the front passenger seat, or if the temperature of the
vehicle's interior changes suddenly.
 y The front passenger air bag deactivation indicator light may illuminate for 10\
seconds if
the total seated weight on the front passenger seat changes.
 y The air bag/front seat belt pretensioner system warning light might illuminate if the front
passenger seat receives a severe impact.
 y If the front passenger air bag deactivation indicator light does not illuminate a\
fter
installing a child-restraint system on the front passenger seat, fi rst, 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 illuminate\
, install the child-
restraint system on the rear seat and consult an Authorized Mazda Dealer as soon as
possible.
 y If the front passenger air bag deactivation indicator light illuminates when an a\
dult is
seated in the front passenger seat, have the passenger re-adjust their posture by sitting
with their feet on the fl oor, and then re-fastening the seat belt. If the front passenger air
bag deactivation indicator light still illuminates, move the passenger t\
o 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 fr\
ont seat belts are
securely fastened and further control the deployment of the air bags.
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*Some models.3–1
3Before Driving
Use of various features, including keys, doors, mirrors and windows.


Keys ...................................................... 3-2 Keys ............................................... 3-2
Keyless Entry System .................... 3-3
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/Trunk Lid ........................ 3-20
Inside Trunk Release Lever
(4-Door)
* ...................................... 3-25
Fuel and Emission ............................. 3-27 Fuel and Engine Exhaust
Precautions ................................... 3-27
Fuel-Filler Lid and Cap ................ 3-30
Steering Wheel................................... 3-32 Steering Wheel ............................. 3-32
Mirrors ............................................... 3-33 Mirrors ......................................... 3-33
Windows ............................................. 3-36 Power Windows ........................... 3-36
Moonroof
* ................................... 3-39 Security System ................................. 3-41
Modifi cation and Add-On
Equipment .................................... 3-41
Immobilizer System ..................... 3-41
Theft-Deterrent System
* ............... 3-43
Driving Tips ....................................... 3-45 Break-In Period ............................ 3-45
Saving Fuel and Protection of the
Environment ................................. 3-45
Hazardous Driving ....................... 3-46
Floor Mat ..................................... 3-46
Rocking the Vehicle ..................... 3-47
Winter Driving ............................. 3-47
Driving In Flooded Area .............. 3-49
Overloading .................................. 3-50
Driving on Uneven Road ............. 3-51
Towing ................................................ 3-52 Trailer Towing .............................. 3-52
Recreational Towing .................... 3-52
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3–11
Before Driving
Doors and 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 fi nd 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 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, always verify
that they are securely closed:
Doors not securely closed are
dangerous, if the vehicle is driven with
a door not securely closed, the door
could open unexpectedly resulting in
an accident.

Always confi rm the safety around the
vehicle before opening a door: Suddenly opening a door is dangerous.
A passing vehicle or a pedestrian could
be hit and cause an accident.
CAUTION
Always confi rm the conditions around
the vehicle before opening/closing the
doors and use caution during strong
winds or when parked on an incline.
Not being aware of the conditions
around the vehicle is dangerous
because fi ngers could get caught in
the door or a passing pedestrian could
be hit, resulting in an unexpected
accident or injury.
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3–14
Before Driving
Doors and Locks
NOTE
 y The system can be set to unlock all
doors by performing a single operation.
 Refer to Personalization Features on page 9-12 .
 y Use the following procedure to change
the setting.
1. Switch the ignition off and close all of the doors and the liftgate/trunk
lid.
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 of pressing the driver's
request switch once or twice to
unlock all doors and the liftgate
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:
 y Switching the ignition to ACC or
ON.
 y Closing the driver's door. y Opening the liftgate/trunk lid. y Not operating the key for 10
seconds.
 y Pressing any button except the
UNLOCK button on the key.
 y Pressing a request switch.
 y Confi rm that all doors and the liftgate
are securely locked.
 For the liftgate/trunk lid, move it without pressing the electric liftgate/
trunk lid opener to verify that the
liftgate/trunk lid has not been left ajar.
 y All doors and the liftgate cannot be
locked when any door or the liftgate is
open.
 y It may require a few seconds for the
doors to unlock after the request switch
is pressed.
 y A beep sound is heard for confi rmation
when the doors and the liftgate are
locked/unlocked using the request
switch. 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 9-12 .
 Use the following procedure to change
the setting.
1. Switch the ignition off and close all of the doors and the liftgate/trunk
lid.
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 lock and the beep sound activates at the
currently set volume. (If the beep
sound is currently set to not activate,
it will not activate.) 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.)
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3–20
Before Driving
Doors and Locks
Rear Door Child Safety Locks
These locks are intended to help prevent
children from accidentally opening the
rear doors. Use them on both rear doors
whenever a child rides in the rear seat of
the vehicle.
If you slide the child safety lock to the
lock position before closing that door, the
door cannot be opened from the inside.
The door can only be opened by pulling
the outside handle.
LockUnlock
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 aff ect the side or rear fi eld of view.
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3–23
Before Driving
Doors and Locks
NOTE
 y 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.
 y 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.
 y 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 7-39 .
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)
Liftgate grip
recess
(4–door)
Trunk lid grip recess
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3–24
Before Driving
Doors and Locks
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. 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 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 fi rmly secured. If it is not
fi rmly 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.
Strap
Removing the cover
This cover can be removed for more room.
1. Remove the straps from the hooks.
2. Lift the end of the luggage
compartment cover a little, pull it
outward, and remove it from the pins.
Pin
Pin
3. Lift the front end of the luggage compartment cover and remove it.
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3–41
Before Driving
Security System
Modifi cation and Add-On
Equipment
Mazda cannot guarantee the immobilizer
and the theft-deterrent systems' operation
if the system has been modifi ed or if any
add-on equipment has been installed.
CAUTION
To avoid damage to the vehicle, do
not modify the system or install any
add-on equipment to the immobilizer
and the theft-deterrent systems or the
vehicle.
Immobilizer System
The immobilizer system allows the
engine to start only with a key the system
recognizes.
If someone attempts to start the engine
with an unrecognized key, the engine will
not start, thereby helping to prevent the
theft of the vehicle.
If you have a problem with the
immobilizer system or the key, consult an
Authorized Mazda Dealer.
CAUTION