ECU MAZDA MODEL 3 HATCHBACK 2020 Owners Manual (in English)

Seat Precautions
▼Seat Precautions
WA R N I N G
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.
Never allow children to adjust a seat:
Allowing children to adjust a seat is
dangerous as it could result in serious
injury if a child's hands or feet become
caught in the seat.
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 adjusting the seatback
at any time, even when there are no other
passengers, rock the seatback to make sure
it is locked in place.
Adjust a seat only when the vehicle is
stopped:
If the seat is adjusted while the vehicle is
being driven, the seating posture may
become unstable and the seat could move
unexpectedly resulting in injury.
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. Cons ult 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, such as
seat cushions torn or damaged down to
the urethane, 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.
Do not drive with either front seats
reclined:
Sitting in a reclined position while the
vehicle is moving is dangerous because you
do not get the full protection from seat
belts. During sudden braking or a collision,
you can slide under the lap belt and suffer
serious internal injuries. For maximum
protection, sit well back and upright.
Essential Safety Equipment
Seats
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Do not place an object such as a cushion
between the seatback and your back:
Putting an object such as a cushion
between the seatback and your back is
dangerous because you will be unable to
maintain a safe driving posture and the
seat belt cannot function at its full capacity
in a collision, which could result in a serious
accident, injury or death.
Do not place objects under the seat:
The object could get stuck and cause the
seat to not be fixed securely, and result in
an accident.
Do not stack cargo higher than the
seatbacks:
Stacking luggage or other cargo higher
than the seatbacks 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.Never allow a passenger to sit or stand on
the folded seatback while the vehicle is
moving:
Driving with a passenger on the folded
seatback is dangerous. Allowing a child to
sit up on the folded seatback while the
vehicle is moving is particularly dangerous.
In a sudden stop or even a minor collision,
a child not in a proper seat or
child-restraint system and seat belt could
be thrown forward, back or even out of the
vehicle resulting in serious injuries or death.
The child in the baggage area could be
thrown into other occupants and cause
serious injury.
Never give the car keys to children and do
not allow them to play in the vehicle (4–
Door):
Playing with the folding rear seats is
dangerous. Once the seatbacks are back
up, a child in the trunk would not be able to
get out the way they had entered. If you
have small children, keep the seatbacks
locked.
Always leave your car locked and keep the
car keys safely away from children (4–
Door):
Leaving your car unlocked or the keys in
reach of children is dangerous. Children
who find their way into the trunk through
an unlocked rear seatback or an open
trunk can become accidentally locked in
the trunk. This could result in death or
brain damage from heat prostration,
particularly in the summer. Always lock the
doors and the trunk, and as an added
measure, keep the rear seatbacks locked,
whether you have children in your home or
not.
Essential Safety Equipment
Seats
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After adjusting the steering wheel position,
make sure it is securely locked by trying to
move it up and down:
Driving with the steering wheel not
securely locked in position is dangerous. If
the steering wheel moves unexpectedly
while driving, you could lose control of the
steering resulting in an accident.
Lower the lever, move the steering wheel
to the lowest position, and then push it
down and all the way back.
How to move a driver’s seat to its
default position
1. Slide the seat all the way back.
2. Lower the seat to its lowest height.
3. Lower the front edge of the seatbottom to its lowest height.
4. Sit squarely in the seat and rest your back against the seatback.
Seat adjustment pr ocedure for the
driving position recommended by
Mazda
Adjusting the seatba ck angle (reclining)
Adjust the seatback to the angle providing
a comfortable seated posture.
1. With your posture slightly slouched, move the seatback forward to the angle
where your waist feels slightly
cramped.
1. Manual Seat
2. Power Seat

Essential Safety Equipment
Seats
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Adjusting the height on the front edge
of the seat bottom
Adjust the height on the front edge of the
seat bottom to the position where the back
of your knees contacts the front edge of
the seat bottom.
1. With your right foot set on the accelerator pedal, adjust the height on
the front edge of the seat bottom so
that the back of your knees lightly
contacts the front edge of the seat
bottom.
2. Depress the accelerator pedal and
make sure that you no longer feel
cramping in the back of your knees.
1. Manual Seat
2. Power Seat

Adjusting the ste ering wheel position
Adjust the steering wh eel to the position
where it can be operated easily and the
gauges can be viewed easily.
1. With your back resting against the seatback, extend both arms, place them
on the top of the steering wheel, and
pull the steering wheel towards you to
the position of your wrists.
2. Adjust the steering wheel height sothat the gauges can be viewed easily.
3. Raise the lever to securely lock the
steering wheel.
Adjusting the head restraint position
To prevent shock to the head and neck,
adjust the head restra ints to their correct
positions.
Refer to Height Adjustment on page
2-17.
▼ Driving Position Memory (Power
Seat)*
The desired driving position can be called
up after programming the position.
The following driving positions can be
programmed.
Essential Safety Equipment
Seats
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Rear Seat
▼Split Folding the Seatbacks
By lowering the rear seatbacks the luggage
compartment space can be expanded.
WA R N I N G
Do not drive the vehicle with occupants on
folded down seatbacks or in the luggage
compartment.
Putting occupants in the luggage
compartment is dangerous because seat
belts cannot be fastened which could lead
to serious injury or death during sudden
braking or a collision.
Do not allow children to play inside the
vehicle with the seatbacks lowered.
Allowing children to play in the vehicle
with the seatbacks folded down is
dangerous. If a child enters the luggage
compartment and the seatbacks were
raised back up, the child may become
trapped in the luggage compartment
which could lead to an accident.
Tightly secure cargo in the luggage
compartment when it is transported with
the seatbacks folded down.
Driving without tightly securing cargo and
luggage is dangerous as it could move and
become an obstruction to driving during
emergency braking or
a collision resulting
in an unexpected accident.
When transporting cargo, do not allow the
cargo to exceed the height of the
seatbacks.
Transporting cargo stacked higher than
the seatbacks is dangerous as visibility to
the rear and sides of the vehicle is reduced
which could interfere with driving
operations and lead to an accident.
Lowering the seatbacks
CAUTION
 (5–Door)
When folding the seatback forward,
always support the seatback with your
hand. If it is not supported by a hand,
fingers or the hand pressing the push
knob could be injured.
 Check the position of a front seat before
folding a rear seatback.
Depending on the position of a front
seat, it may not be possible to fold a rear
seatback all the way down because it
may hit the seatback of the front seat
which could scratch or damage the front
seat or its pocket. Lower or remove the
head restraint on the rear outboard seat
if necessary.
Essential Safety Equipment
Seats
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1. Make sure that the seat belt passesthrough the seat belt guide correctly
and it is not twisted, then raise the
seatback while preventing the seat belt
from being caught in the seatback.
(4–Door)
1. Seat belt guides

(5–Door)
1. Red indication
2. Seat belt guide

2. Press the seatback rearward and lock it in place. After returning the seatback
to its upright position, make sure it is
securely locked.
Essential Safety Equipment
Seats
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Front seats

Rear outboard seats

Rear center seat

▼Removal/Installation
To remove the head restraint, pull it up
while pressing the stop-catch.
To install the head restraint, insert the legs
into the holes while pressing the
stop-catch.
WA R N I N G
Always drive with the head restraints
installed when seats are being used and
make sure they are properly installed:
Driving with the head restraints not
installed is dangerous. With no support
behind your head, your neck could be
seriously injured in a collision.
After installing a head restraint, try lifting it
to make sure that it does not pull out:
Driving with an unsecured head restraint is
dangerous as the effectiveness of the head
restraint will be compromised which could
cause it to unexpectedly detach from the
seat.
Essential Safety Equipment
Seats
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Seat Belt Precautions
▼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.

(Mexico)
All the seats have lap/shoulder belts.
These belts have retractors with inertia
locks that keep them
out of the way when
not in use. The locks allow the belts to
remain comfortable on users, but they will
lock in position du ring a collision.

(Except Mexico)
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.
WA R N I N G
Always wear your seat belt and make sure
all occupants are properly restrained:
Not wearing a seat belt is extremely
dangerous. During a collision, occupants
not wearing seat belts could hit someone
or things inside the vehicle or even be
thrown out of the vehicle. They could be
seriously injured or even killed. In the same
collision, occupants wearing seat belts
would be much safer.
Do not wear twisted seat belts:
Twisted seat belts are dangerous. In a
collision, the full width of the belt is not
available to absorb the impact. This puts
more force on the bones beneath the belt,
which could cause serious injury or death.
So, if your seat belt is twisted, you must
straighten the seat belt to remove any
twists and to allow the full width of the belt
to be used.
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.
Essential Safety Equipment
Seat Belt Systems
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▼Front Shoulder Belt Adjuster
The front seat belts
have a front shoulder
belt adjuster. If the seat belt contacts your
neck or it slips off the shoulder, adjust the
seat belt height.
To r a i s e
To heighten the seat belt, move the front
shoulder belt adjuster upward.
To l o w e r
To lower the seat belt, hold the front
shoulder belt adjuster and lower the seat
belt with the knob of the front shoulder
belt adjuster pressed.

After adjusting, press the front shoulder
belt adjuster downward and make sure that
it is securely locked.
Seat Belt Warning Systems
▼ Seat Belt Warning Systems
If it detects that the occupant seat belt is
unfastened, the warning light or beep
alerts the occupant.
Refer to Seat Belt Wa
rning Indication/
Warning Light (Front seat) on page 7-35.
Refer to Seat Belt Warning Light (Rear
seat) (Red) on page 7-36.
Refer to Seat Belt Wa rning Beep on page
7-41.

Seat belt indicator light (rear seat)
(green)
The light turns on when the rear seat belt
is fastened while the ignition is switched
ON, and it turns off after a certain period.
Essential Safety Equipment
Seat Belt Systems
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Child-RestraintPrecautions
▼ Child-Restraint Precautions
Mazda strongly urges the use of
child-restraint system
s 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 childr en riding in your
vehicle.

Whatever child-rest raint system you
consider, please pick the appropriate one
for the age and size of the child, obey the
law and follow the i nstructions that come
with the individual ch ild-restraint system.

A child who has outgrown child-restraint
systems should sit in the rear and use seat
belts, both lap an d 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 should
NEVER be 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.

(With Front Passenger Occupant
Classification System)
To reduce the chance of injuries caused by
deployment of the front passenger air bag,
the front passenger seat weight sensors
occupant classification sensor works as a
part of the supplementa l restraint system.
This system deactivates the front
passenger front and side air bags and knee
air bags, and also the front passenger seat
belt pretensioner system when the front
passenger air bag deactivation indicator
light illuminates.

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 knee 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 prope rly 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 2-72).

Essential Safety Equipment
Child Restraint
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