MAZDA MODEL 3 SEDAN 2021 Repair Manual

▼If 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
whether your vehicle is equipped with
an occupant classi
fication sensor or
not.
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 ISOFIX/LATCH
*1
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 since your vehicle has
side and curtain air bags, 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.
*1 ISOFIX (Mexico)/LATCH (Except Mexico)
NOTE
To 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.
To 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.
WARNING
Always move the front passenger seat
as far back as possible if installing a
front-facing child-restraint system on
it is unavoidable:
As your vehicle has front air bags and
doubly so because your vehicle has
side air bags, a front-facing
child-restraint system should be put on
the front passenger seat only when it is
unavoidable.
Even if the front passenger air bag
deactivation indicator light illuminates,
always move the seat as far back as
possible, because the force of a
deploying air bag could cause serious
injury or death to the child.
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 in a moderate collision, 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. Even though you
may feel assured that the front
passenger air bag will not deploy
based on the fact that the front
passenger air bag deactivation
indicator light illuminates, you should
not use a rear-facing child-restraint
system in the front seat.
Essential Safety Equipment
Child Restraint
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Do not allow a child or anyone to
lean over to or against the side
window of a vehicle with side and
curtain air bags:
It is dangerous to allow anyone to lean
over to 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 to or
against the front door could block the
side and curtain air bags and eliminate
the advantages of supplemental
protection. Because the front seats are
equipped with fron t air bags, the rear
seat is always a better location for
children. Take special care not to allow
a child to lean over to or against the
side window, even if the child is seated
in a child-restraint system.
Always remove the head restraint and
install child-restraint system (except
when installing a backless booster
seat):
Installing a child-restraint system
without removing the head restraint is
dangerous. The child-restraint system
cannot be installed correctly which
may result in death or injury to the
child in a collision.Always install the head restraint and
adjust it to the appropriate position
after removing the child-restraint
system:
Driving with the head restraint
removed is dangerous as impact to the
occupant's head cannot be prevented
during emergency braking or in a
collision, which could result in a
serious accident, injury or death.
Refer to Head Restraints on page 2-17.
Front Passenger's Seat Child-Restraint
System Installation (With Front
Pa s s e n g e r O cc u p a n t Classification
System)
1. Make sure the ignition is switched
off.
2. Slide the seat as far back as possible.
3. Remove the head restraint.However, when installing a backless
booster seat, always install the
vehicle head restraint to the seat
where the backless booster seat is
installed.
4. Place the child-restraint system on
the seat without putting your
weight on the seat and fasten the
seat belt. See the manufacturer's
instructions on the child-restraint
system for belt routing instructions.
Essential Safety Equipment
Child Restraint
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5. To get the retractor into theautomatic locking mode, pull the
shoulder belt portion of the seat
belt until the entire length of the
belt is out of the retractor.
6. 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
Inspect 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.
Follow 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.
7. Seat your child safely in the child-restraint system and secure
the child according to the
instructions from the child-restraint
system manufacturer.
8. Switch the ignition ON and makesure the front passenger air bag
deactivation indicator light
illuminates after installing a
child-restraint system on the front
passenger seat.
If the front passenger air bag
deactivation indicator light does
not illuminate, remove the
child-restraint system, switch the
ignition to OFF, and then re-install
the child-restraint system (page
2-71).
Essential Safety Equipment
Child Restraint
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WARNING
Do not seat a child in a child-restraint
system on the front passenger seat if
the front passenger air bag
deactivation indicator light does not
illuminate:
While it is always better to install any
child-restraint system on the rear seat,
it is imperative that a child-restraint
system ONLY be used on the front
passenger seat if the deactivation
indicator light illuminates when the
child is seated in the child-restraint
system (page 2-71). Seating a child in
a child-restraint system installed on the
front passenger seat with the front
passenger air bag deactivation
indicator light not illuminated is
dangerous. If this indicator light does
not illuminate, this means that the
front passenger front and side air bags,
and knee air bags, and seat belt
pretensioners are ready for
deployment. If an accident were to
deploy an air bag, a child in a
child-restraint system sitting in the
front passenger seat could be seriously
injured or killed. If the indicator light
does not illuminate after seating a
child in a child-restraint system on the
front passenger seat, seat a child in a
child-restraint system on the rear seat
and consult an Authorized Mazda
Dealer as soon as possible.
▼ Using ISOFIX Lower Anchor
(Mexico)/Using LATCH Lower
Anchor (Except Mexico)
Your Mazda is equipped with ISOFIX/
LATCH*1 lower anchors for attachment
of specially designed ISOFIX/LATCH*1
child-restraint systems in the rear seats.
Both anchors must be used, otherwise
the seat will bounce around and put
the child in danger. Most ISOFIX/
LATCH
*1 child-restraint systems must
also be used in conjunction with a
tether to be e ffective. 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.
Essential Safety Equipment
Child Restraint
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Never attach two child-restraint
systems to the same ISOFIX/LATCH*1
lower anchor:
Attaching two child-restraint systems
to the same ISOFIX/LATCH
*1 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 ISOFIX/
LATCH
*1 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
attach it to BOTH ISOFIX/LATCH
*1
lower anchors for ISOFIX/LATCH*1
child-restraint systems.
Make sure there are no seat belts or
foreign objects near or around the
ISOFIX/LATCH
*1 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 ISOFIX/LATCH
*1 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
ISOFIX/LATCH
*1 lower anchors.
Always follow the child-restraint
system manufacturer's instructions.
*1ISOFIX (Mexico)/LATCH (Except Mexico)
Installation on rear outboard seats
1. First, adjust the front seat to allow clearance between the
child-restraint system and the front
seat.
Refer to Adjusting the Driver's Seat
on page 2-5.
Refer to Adjusting the Front
Passenger's Seat on page 2-13.
2. Make sure the seatback is securely latched by pushing it back until it is
fully locked.
Essential Safety Equipment
Child Restraint
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3. Remove the cover of thechild-restraint system's ISOFIX/
LATCH
*1 lower anchors to verify the
locations of the ISOFIX/LATCH*1
lower anchors.
1. Lower anchor

NOTE
The ISOFIX/LATCH*1 lower
anchors marking on the cover
indicates the position of the
ISOFIX/LATCH
*1 lower anchors
for the attachment of a
child-restraint system.
Store the removed cover so that it
does not get lost.
4. Remove the head restraint.
However, when installing a backless
booster seat, always install the
vehicle head restraint to the seat
where the backless booster seat is
installed.
Refer to Head Restraints on page
2-17.
5. Secure the child-restraint system
using BOTH ISOFIX/LATCH
*1 lower
anchors, following the
child-restraint system
manufacturer's instruction. Pull on
the child-restraint to be sure both
anchors are engaged.
6. If your child-restraint system came equipped with a tether, that means
it is very important to properly
secure the tether for child safety.
Please carefully follow the
child-restraint system
manufacturer's instructions when
installing tethers.
*1 ISOFIX (Mexico)/LATCH (ExceptMexico)
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 remove the head restraint and
install child-restraint system (except
when installing a backless booster
seat):
Installing a child-restraint system
without removing the head restraint is
dangerous. The child-restraint system
cannot be installed correctly which
may result in death or injury to the
child in a collision.
(4–Door)
1. Tether strap
Essential Safety Equipment
Child Restraint
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2. Anchor bracket

(5–Door)
1. Tether strap
2. Anchor bracket
3. Forward

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.
Always install the head restraint and
adjust it to the appropriate position
after removing the child-restraint
system:
Driving with the head restraint
removed is dangerous as impact to the
occupant's head cannot be prevented
during emergency braking or in a
collision, which could result in a
serious accident, injury or death.
Refer to Head Restraints on page 2-17.

Installation on rear center seat
The ISOFIX/LATCH*1 lower anchors at
the center of the rear seat are much
further apart than the sets of ISOFIX/
LATCH
*1 lower anchors for
child-restraint system installation at
other seating positions. Child-restraint
systems with rigid ISOFIX/LATCH
*1
attachments cannot be installed on the
center seating position. Some ISOFIX/
LATCH
*1 equipped child-restraint
systems can be placed in the center
position and will reach the nearest
ISOFIX/LATCH
*1 lower anchors which
are 434 mm (17.1 in) apart. ISOFIX/
LATCH
*1 compatible child-restraint
systems (with attachments on belt
webbing) can be used at this seating
position only if the child-restraint
system manufacturer's instructions
state that the child-restraint system can
be installed to ISOFIX/LATCH
*1 lower
anchors that are 434 mm (17.1 in)
apart. Do not attach two child-restraint
systems to the same ISOFIX/LATCH
*1
lower anchor. If your child-restraint
system has a tether, it must also be
used for your child's optimum safety.

The procedure is the same as the
installation for the rear outboard seats.
*1ISOFIX (Mexico)/LATCH (Except Mexico)
Essential Safety Equipment
Child Restraint
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ISOFIX/LATCH*1 lower anchor
location
WARNING
Always remove the head restraint and
install child-restraint system (except
when installing a backless booster
seat):
Installing a child-restraint system
without removing the head restraint is
dangerous. The child-restraint system
cannot be installed correctly which
may result in death or injury to the
child in a collision.

(4–Door)
1. Tether strap
2. Anchor bracket

(5–Door)
1. Tether strap
2. Anchor bracket
3. Forward

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.
Always install the head restraint and
adjust it to the appropriate position
after removing the child-restraint
system:
Driving with the head restraint
removed is dangerous as impact to the
occupant's head cannot be prevented
during emergency braking or in a
collision, which could result in a
serious accident, injury or death.
Refer to Head Restraints on page 2-17.
*1 ISOFIX (Mexico)/LATCH (Except Mexico)
Essential Safety Equipment
Child Restraint
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Supplemental Restraint
System (SRS) Precautions
▼ Supplemental Restraint System
(SRS) Precautions
The front and side supplemental
restraint systems (SRS) include
different
types of air bags. Please verify the
di fferent types of air bags which are
equipped on your vehicle by locating
the “SRS AIRBAG” location indicators.
These indicators are visible in the area
where the air bags are installed.
The air bags are installed in the
following locations:

The steering wheel hub (driver air
bag)
The front passenger dashboard (front
passenger air bag)
Under the instrument panel (driver
and front passenger* knee air bags)The outboard sides of the front
seatbacks (side air bags)
The front and rear window pillars,
and the roof edge along both sides
(curtain air bags)

Vehicles with the Front Passenger
Occupant Classi fication System have a
sensor which detects an impending
roll-over accident.

The air bag supplemental restraint
systems are designed to provide
supplemental protection in certain
situations so seat belts are always
important in the following ways:

Without seat belt usage, the air bags
cannot provide adequate protection
during an accident. Seat belt usage is
necessary to:
Keep the occupant from being
thrown into an in flating air bag.
Reduce the possibility of injuries
during an accident that is not
designed for air bag in flation, such as
rear impact.
Reduce the possibility of injuries in
frontal, near frontal or side collisions
or roll-over accidents that are not
severe enough to activate the air
bags.
Reduce the possibility of being
thrown from your vehicle.
Reduce the possibility of injuries to
lower body and legs during an
accident because the air bags
provide no protection to these parts
of the body.
Hold the driver in a position which
allows better control of the vehicle.

Essential Safety Equipment
SRS Air Bags
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If your vehicle is also equipped with a
front passenger occupant
classification system, refer to the Front
Passenger Occupant Classi fication
System (page 2-70) for details.
If your vehicle is equipped with a front
passenger occupant classi fication
system, the front passenger air bag
deactivation indicator light illuminates
for a speci fied time after the ignition is
switched ON.


Small children must be protected by a
child-restraint system as stipulated by
law in every state and province. In
certain states and provinces, larger
children must use a child-restraint
system (page 2-32).

Carefully consider which child-restraint
system is necessary for your child and
follow the installation directions in this
Owner's Manual as well as the
child-restraint system manufacturer's
instructions.
WARNING
Seat belts must be worn in air bag
equipped vehicles:
Depending only on the air bags for
protection during an accident is
dangerous. Alone, air bags may not
prevent serious injuries. The
appropriate air bags can be expected
to in flate only in the first accident, such
as frontal, near frontal or side collisions
or roll-over accidents that are at least
moderate. Vehicle occupants should
always wear seat belts.

Children should not ride in the front
passenger seat:
Placing a child, 12 years or under, in
the front seat is dangerous. The child
could be hit by a deploying air bag and
be seriously injured or even killed. A
sleeping child is more likely to lean
against the door and be hit by the side
air bag in moderate collision to the
front-passenger side of the vehicle.
Whenever possible, always secure a
child 12 years and under on the rear
seats with an appropriate
child-restraint system for the child's
age and size.
Essential Safety Equipment
SRS Air Bags
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