ECU MAZDA MODEL 3 HATCHBACK 2010 Owner's Manual (in English)

Black plate (16,1)
Front Seats (Manually
Operated Seats)
WARNING
Do not modify or replace the front
seats:
Modifying or replacing the front seats
such as replacing the upholstery or
loosening any bolts is dangerous. The
front seats contain air bag
components essential to the
supplemental restraint system. Such
modifications could damage the
supplemental restraint system and
result in serious injury. Consult an
Authorized Mazda Dealer if there is
any need to remove or reinstall the
front seats.
Do not drive with damaged front seats:
Driving with damaged front seats is
dangerous. A collision, even one not
strong enough to inflate the air bags,
could damage the front seats which
contain essential air bag
components. If there was a
subsequent collision, an air bag may
not deploy which could lead to
injuries. Always have an Authorized
Mazda Dealer inspect the front seats,
front seat belt pretensioners and air
bags after a collision.Make sure the adjustable components
of a seat are locked in place:
Adjustable seats and seatbacks that
are not securely locked are
dangerous. In a sudden stop or
collision, the seat or seatback could
move, causing injury. Make sure the
adjustable components of the seat
are locked in place by attempting to
slide the seat forward and backward
and rocking the seatback.
qSeat Slide
WARNING
Adjust the driver's seat only when the
vehicle is stopped:
Adjusting the driver's seat while the
vehicle is moving is dangerous. The
driver could lose control of the vehicle
and have an accident.
To move a seat forward or backward, raise
the lever and slide the seat to the desired
position and release the lever.
Make sure the lever returns to its original
position and the seat is locked in place by
attempting to push it forward and
backward.
2-2
Essential Safety Equipment
Seats
Mazda3_8AD6-EC-09A_Edition1 Page16
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (23,1)
NOTE
Memory will also be erased if any of the
following operations are performed:
lThe advanced key/retractable type key code
has been changed.
Refer to Immobilizer System (with
Advanced Key) on page 3-54.
Refer to Immobilizer System (without
Advanced Key) on page 3-58.
lThe vehicle battery is disconnected for
vehicle maintenance or other reasons.
Rear Seat
WARNING
Do not stack cargo higher than the
seatbacks or place articles on the rear
package tray or on the luggage
compartment cover:
Stacking luggage or other cargo
higher than the seatbacks, and
placing articles on the rear seat or on
the luggage compartment cover is
dangerous. During sudden braking
or a collision, objects can fly around
and become projectiles that may hit
and injure passengers.
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.
Do not drive with the seatback
unlocked:
All of the seatbacks play an
important role in your protection in a
vehicle. Leaving the seatback
unlocked is dangerous as it can allow
passengers to be ejected or thrown
around and baggage to strike
occupants in a sudden stop or
collision, resulting in severe injury.
After returning the seatback at any
time, even when there are no other
passengers, rock the seatback to
make sure it is locked in place.
Essential Safety Equipment
Seats
2-9
Mazda3_8AD6-EC-09A_Edition1 Page23
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (30,1)
Seat Belt Precautions
Seat belts help to decrease the possibility of severe injury during accidents and sudden
stops. Mazda recommends that the driver and all passengers always wear seat belts.
All of the seat belt retractors are designed to keep the lap/shoulder belts out of the way
when not in use.
The driver's seat belt has no provisions for child-restraint systems and has only an
emergency locking mode. The driver may wear it comfortably, and it will lock during a
collision.
However, the front passenger's seat and all rear lap/shoulder belt retractors operate in two
modes: emergency locking mode, and for child-restraint systems, automatic locking mode.
While we recommend you put all children in the rear seats, if you must use the front
passenger seat for a child, slide the front passenger seat as far back as possible and make
sure any child-restraint system is secured properly.
2-16
Essential Safety Equipment
Seat Belt Systems
Mazda3_8AD6-EC-09A_Edition1 Page30
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (42,1)
Child Restraint Precautions
Mazda strongly urges the use of child-restraint systems for children small enough to use
them.
You are required by law to use a child-restraint system for children in the U.S. and Canada.
Check your local and state or provincial laws for specific requirements regarding the safety
of children riding in your vehicle.
Whatever child-restraint system you consider, please pick the appropriate one for the age
and size of the child, obey the law and follow the instructions that come with the individual
child-restraint system.
A child who has outgrown child-restraint systems should sit in the rear and use seat belts,
both lap and shoulder. If the shoulder belt crosses the neck or face, move the child closer to
the center of the vehicle in the outboard seats, and towards the buckle on the right if the
child is seated on the center seat.
Statistics confirm that the rear seat is the best place for all children up to 12 years of age,
and more so with a supplemental restraint system (air bags).
A rear-facing child-restraint system shouldNEVERbe used on the front seat with the air
bag system activated. The front passenger's seat is also the least preferred seat for other
child-restraint systems.
To reduce the chance of injuries caused by deployment of the front passenger air bag, the
front passenger seat weight sensors work as a part of the supplemental restraint system.
This system deactivates the front passenger front and side air bags and also the front
passenger seat belt pretensioner system when the total seated weight on the front passenger
seat is less than approximately 30 kg (66 lb).
When an infant or small child sits on the front passenger seat, the system shuts off the front
passenger front and side air bags and seat belt pretensioner system, so make sure the front
passenger air bag deactivation indicator light illuminates.
Even if the front passenger air bag is shut off, Mazda strongly recommends that children be
properly restrained and child-restraint systems of all kinds are properly secured on the rear
seats which are the best place for children.
For more details, refer to“Front passenger seat weight sensors”(page 2-56).
2-28
Essential Safety Equipment
Child Restraint
Mazda3_8AD6-EC-09A_Edition1 Page42
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (43,1)
WARNING
Use the correct size child-restraint system:
For effective protection in vehicle accidents and sudden stops, a child must be
properly restrained using a seat belt or child-restraint system depending on age and
size. If not, the child could be seriously injured or even killed in an accident.
Follow the manufacturer's instructions and always keep the child-restraint system
buckled down:
An unsecured child-restraint system is dangerous. In a sudden stop or a collision it
could move causing serious injury or death to the child or other occupants. Make
sure any child-restraint system is properly secured in place according to the child-
restraint system manufacturer's instructions. When not in use, remove it from the
vehicle or fasten it with a seat belt, or latch it down to BOTH LATCH lower anchors
for LATCH child-restraint systems and the corresponding tether anchor.
Always secure a child in a proper child-restraint system:
Holding a child in your arms while the vehicle is moving is extremely dangerous. No
matter how strong the person may be, he or she cannot hold onto a child in a
sudden stop or collision and it could result in serious injury or death to the child or
other occupants. Even in a moderate accident, the child may be exposed to air bag
forces that could result in serious injury or death to the child, or the child may be
slammed into an adult, causing injury to both child and adult.
Never use a rear-facing child-restraint system in the front seat with an air bag that
could deploy:
Rear-facing child-restraint systems on the front seat are particularly dangerous even
though you may feel assured that a front passenger air bag will not deploy based on
the fact that the front passenger air bag deactivation indicator light illuminates.
The child-restraint system can be hit by a deploying air bag and moved violently
backward resulting in serious injury or death to the child.
Essential Safety Equipment
Child Restraint
2-29
Mazda3_8AD6-EC-09A_Edition1 Page43
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (45,1)
Do not allow a child or anyone to lean over or against the side window of a vehicle
with side and curtain air bags:
It is dangerous to allow anyone to lean over or against the side window, the area of
the front passenger seat, the front and rear window pillars and the roof edge along
both sides from which the side and curtain air bags deploy, even if a child-restraint
system is used. The impact of inflation from a side or curtain air bag could cause
serious injury or death to an out of position child. Furthermore, leaning over or
against the front door could block the side and curtain air bags and eliminate the
advantages of supplemental protection. With the front air bag and the additional
side air bag that comes out of the front seat, the rear seat is always a better location
for children. Take special care not to allow a child to lean over or against the side
window, even if the child is seated in a child-restraint system.
Never use one seat belt on more than one person at a time:
Using one seat belt for more than one person at a time is dangerous. A seat belt
used in this way cannot spread the impact forces properly and the two passengers
could be crushed together and seriously injured or even killed. Never use one belt for
more than one person at a time and always operate the vehicle with each occupant
properly restrained.
CAUTION
A seat belt or child-restraint system can become very hot in a closed vehicle during
warm weather. To avoid burning yourself or a child, check them before you or your
child touches them.
NOTE
Your Mazda is equipped with LATCH lower anchors for attachment of specially designed LATCH
child-restraint systems in the rear seat. When using these anchors to secure a child-restraint system,
refer to“LATCH Child-Restraint Systems”(page 2-39).
Essential Safety Equipment
Child Restraint
2-31
Mazda3_8AD6-EC-09A_Edition1 Page45
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (46,1)
Installing Child-Restraint
Systems
Accident statistics reveal that a child is
safer in the rear seat. The front passenger's
seat is clearly the worst choice for any
child under 12, and with rear-facing child-
restraint systems it is clearly unsafe due to
air bags.
Some child-restraint systems now come
with tethers and therefore must be
installed on the seats that take tethers to
be effective. In your Mazda, tethered
child-restraint systems can only be
accommodated in the three positions on
the rear seat.
Even if your vehicle is equipped with
front passenger seat weight sensors (page
2-56), which automatically deactivates the
front passenger air bag, a rear seat is the
safest place for a child of any age or size.
Some child-restraint systems also employ
specially designed LATCH attachments;
refer to“LATCH Child-Restraint
Systems”(page 2-39).
WARNING
Tethered Child-Restraint Systems Work
Only on Tether-Equipped Rear Seats:
Installation of a tether equipped
child-restraint system in the front
passenger's seat defeats the safety
design of the system and will result in
an increased chance of serious injury
if the child-restraint system goes
forward without benefit of being
tethered.
Place tether equipped child-restraint
systems where there are tether
anchors.
qRear Seat Child-Restraint System
Installation
Follow these instructions when using a
child-restraint system, unless you are
attaching a LATCH-equipped child-
restraint system to the rear LATCH lower
anchors. Refer to“LATCH Child-
Restraint Systems”(page 2-39).
NOTE
Follow the child-restraint system
manufacturer's instructions carefully. If you
are not sure whether you have a LATCH
system or tether, check in the child-restraint
system manufacturer's instructions and follow
them accordingly. Depending on the type of
child-restraint system, it may use LATCH
system instead of seat belts or if the belt goes
across the child's chest, may recommend
against using automatic locking mode.
1. Make sure the seatback is securely
latched by pushing it back until it is
fully locked.
2. Remove the head restraint (except
center seat position).
Refer to Head Restraints on page 2-12.
3. Secure the child-restraint system with
the lap portion of the lap/shoulder belt.
See the manufacturer's instructions on
the child-restraint system for belt
routing instructions.
2-32
Essential Safety Equipment
Child Restraint
Mazda3_8AD6-EC-09A_Edition1 Page46
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (49,1)
WARNING
Use the tether and tether anchor only
for a child-restraint system:
Using the tether or tether anchor to
secure anything but a child-restraint
system is dangerous. This could
weaken or damage the tether or
tether anchor and result in injury.
Always route the tether strap between
the head restraint and the seatback
(Except center position):
Routing the tether strap on top of the
head restraint is dangerous. In a
collision the tether strap could slide
off the head restraint and loosen the
child-restraint system. The child-
restraint system could move which
may result in death or injury to the
child.
Always attach the tether strap to the
correct tether anchor position:
Attaching the tether strap to the
incorrect tether anchor position is
dangerous. In a collision, the tether
strap could come off and loosen the
child-restraint system. If the child-
restraint system moves it could result
in death or injury to the child.
qIf You Must Use the Front Seat
for Children
If you cannot put all children in the rear
seat, at least put the smallest children in
the rear and be sure the largest child up
front uses the shoulder belt over the
shoulder.
NEVER put a rear-facing child-restraint
system on the front passenger seat, even
with a seat weight sensor equipped
vehicle.
This seat is also not set up for tethered
child-restraint systems, put them in one of
the rear seat positions set up with tether
anchors.
Likewise the LATCH child-restraint
system cannot be secured in the front
passenger's seat and should be used in the
rear seat.
Do not allow anyone to sleep against the
side window if you have an optional side
and curtain air bag, it could cause serious
injuries to an out of position occupant. As
children more often sleep in cars, it is
better to put them in the rear seat. If
installing the child-restraint system on the
front seat is unavoidable, follow these
instructions when using a front-facing
child-restraint system in the front
passenger's seat.
NOTE
lTo check if your front seats have side air
bags:
Mazda vehicles equipped with side air bag
will have a“SRS AIRBAG”tag on the
outboard shoulder of the front seats.
lTo check if your vehicle has curtain air
bags:
Mazda vehicles equipped with curtain air
bag will have an“SRS AIRBAG”marking
on the window pillars along the roof edge.
Essential Safety Equipment
Child Restraint
2-35
Mazda3_8AD6-EC-09A_Edition1 Page49
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (51,1)
2. Secure the child-restraint system with
the lap portion of the lap/shoulder belt.
See the manufacturer's instructions on
the child-restraint system for belt
routing instructions.
3. To get the retractor into the automatic
locking mode, pull the shoulder belt
portion of the seat belt until the entire
length of the belt is out of the retractor.
4. Push the child-restraint system firmly
into the vehicle seat. Be sure the belt
retracts as snugly as possible. A
clicking noise from the retractor will be
heard during retraction if the system is
in automatic locking mode. If the belt
does not lock the seat down tight,
repeat the previous step and also this
one.
NOTE
lInspect this function before each use of the
child-restraint system. You should not be
able to pull the shoulder belt out of the
retractor while the system is in the
automatic locking mode. When you remove
the child-restraint system, be sure the belt
fully retracts to return the system to
emergency locking mode before occupants
use the seat belts.
lFollow the child-restraint system
manufacturer's instructions carefully.
Depending on the type of child-restraint
system, it may not employ seat belts which
are in automatic locking mode.
5. Make sure the front passenger air bag
deactivation indicator light illuminates
after installing a child-restraint system
on the front passenger seat.
Refer to Front passenger air bag
deactivation indicator light on page
2-56.
Essential Safety Equipment
Child Restraint
2-37
Mazda3_8AD6-EC-09A_Edition1 Page51
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A

Black plate (53,1)
LATCH Child-Restraint Systems
Your Mazda is equipped with LATCH lower anchors for attachment of specially designed
LATCH child-restraint systems in the rear seat. Both anchors must be used, otherwise the
seat will bounce around and put the child in danger. Most LATCH child-restraint systems
must also be used in conjunction with a tether to be effective. If they have a tether you
must use it to better assure your child's safety.
WARNING
Follow the manufacturer's instructions for the use of the child-restraint system:
An unsecured child-restraint system is dangerous. In a sudden stop or a collision it
could move causing serious injury or death to the child or other occupants. Make
sure the child-restraint system is properly secured in place according to the child-
restraint system manufacturer's instructions.
Never attach two child-restraint systems to the same LATCH lower anchor:
Attaching two child-restraint systems to the same LATCH lower anchor is dangerous.
In a collision, one anchor may not be strong enough to hold two child-restraint
system attachments, and it may break, causing serious injury or death. If you use the
seat position for another child-restraint system when an outboard LATCH position is
occupied, use the center seat belts instead, and the tether if tether-equipped.
Make sure the child-restraint system is properly secured:
An unsecured child-restraint system is dangerous. In a sudden stop or a collision it
could move causing serious injury or death to the child or other occupants. Follow
the child-restraint system manufacturer's instructions on belt routing to secure the
seat just as you would with a child in it so that nobody is tempted to put a child in
an improperly secured seat later on. When not in use, remove it from the vehicle or
fasten it with a seat belt, or latch it down to BOTH LATCH lower anchors for LATCH
child-restraint systems.
Make sure there are no seat belts or foreign objects near or around the LATCH child-
restraint system:
Not following the child-restraint system manufacturer's instructions when installing
the child-restraint system is dangerous. If seat belts or a foreign object prevent the
child-restraint system from being securely attached to the LATCH lower anchors and
the child-restraint system is installed improperly, the child-restraint system could
move in a sudden stop or collision causing serious injury or death to the child or
other occupants. When installing the child-restraint system, make sure there are no
seat belts or foreign objects near or around the LATCH lower anchors. Always follow
the child-restraint system manufacturer's instructions.
Essential Safety Equipment
Child Restraint
2-39
Mazda3_8AD6-EC-09A_Edition1 Page53
Tuesday, December 2 2008 2:26 PM
Form No.8AD6-EC-09A