warning MAZDA MODEL 3 HATCHBACK 2021 Owners Manual

We want to help you get the most
driving pleasure from your vehicle.
Your owner's manual, when read from
beginning to end, can do that in many
ways.

Illustrations complement the words of
the manual to best explain how to
enjoy your Mazda. By reading your
manual, you can find out about the
features, important safety information,
and driving under various road
conditions.

You'll find several WARNINGs,
CAUTIONs, and NOTEs in the manual.
WARNING
A WARNING indicates a situation in
which serious injury or death could
result if the warning is ignored.
CAUTION
A CAUTION indicates a situation in
which bodily injury or damage to your
vehicle, or both, could result if the
caution is ignored.
NOTE
A NOTE provides information and
sometimes suggests how to make
better use of your vehicle.

The symbol below in this manual
means “Do not do this” or “Do not let
this happen”.

The following symbol indicates the first
operation, such as a push or a turn.
The following symbol indicates the
second operation, such as a push or a
turn.
The following symbol indicates the
location of parts.
The following symbol indicates a
change of status.
The following symbol, located on
some parts of the vehicle, indicates
that this manual contains information
related to the part.
Please refer to the manual for a
detailed explanation.
Index: A good place to start is the
Index, an alphabetical listing of all
information in your manual.

How to Use This Manual
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Interior Equipment (View B)
▼Interior Equipment (View B)
ƒ
Instrument cluster............................................................................. page 4-12
„ Active driving display......................................................................... page 4-30
… Mazda Connect................................................................................ page 5-15
† Climate control system........................................................................ page 5-2
‡ Heated steering wheel switch............................................................. page 2-21
ˆ Seat warmer switches........................................................................ page 2-20
‰ Hazard warning
flasher switch............................................................ page 4-60
Š Rear window defogger switch............................................................ page 4-58
‹ Glove compartment.......................................................................... page 5-46
ΠExternal input terminal.......................................................................page 5-15
Push button start................................................................................. page 4-4
Ž Horn................................................................................................ page 4-59
Lock release lever................................................................................ page 2-5
Hood release handle................. ........................................................ page 6-13
‘ Storage pocket.................................................................................. page 5-46
Pictorial Index
Interior Overview
The equipment and installation position varies by vehicle1-3
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2Essential Safety Equipment
Important information about safety equipment, including seats,
seat belt system, child-restraint systems and SRS air bags.
Seats....................................... 2-2 Seat Precautions.................... 2-2
Front Seat..............................2-5
Rear Seat.............................2-14
Head Restraints................... 2-17
Seat Warmer/Heated Steering
Wheel................................... 2-20 Seat Warmer
*...................... 2-20
Heated Steering Wheel
*........2-21
Seat Belt Systems.................... 2-23 Seat Belt Precautions............ 2-23
Seat Belt..............................2-26
Seat Belt Warning Systems.... 2-27
Front Seat Belt Pretensioner and
Load Limiting Systems.......... 2-28
Seat Belt Extender................ 2-30
Child Restraint........................2-32 Child-Restraint Precautions..........
.......................................... 2-32
Child-Restraint System
Installation.......................... 2-37
Child-Restraint System Suitability
for Various Seat Positions
Table...................................2-39
Installing Child-Restraint
Systems............................... 2-42
SRS Air Bags........................... 2-55 Supplemental Restraint System
(SRS) Precautions.................2-55
Supplemental Restraint System
Components....................... 2-61
How the SRS Air Bags
Work.................................. 2-63
SRS Air Bag Deployment
Criteria............................... 2-67
Limitations to SRS Air Bag..... 2-69
Driver and Front Passenger
Occupant Classi fication
System
*............................... 2-70
Constant Monitoring............ 2-75
*Some models.2-1
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Seat Precautions
▼Seat Precautions
WARNING
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 modi
fications 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, such
as seat cushions torn or damaged
down to the urethane, is dangerous. A
collision, even one not strong enough
to in flate 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.
Essential Safety Equipment
Seats
2-2
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4.Seat Recline
To change the seatback angle, lean
forward slightly while raising the
lever. Then lean back to the desired
position and release the lever.
Make sure the lever returns to its
original position and the seatback is
locked in place by attempting to
push it forward and backward.

Powe r s eat
1. Seat Slide
To slide the seat, move the slide
lifter switch on the outside of the
seat to the front or back and hold
it. Release the switch at the desired
position.
2. Height Adjustment
To adjust the seat height, move the
slide lifter switch up or down.
3.Height Adjustment for Front Edge
of Seat Bottom
To adjust the front height of the
seat bottom, raise or lower the
front of the slide lifter switch.
4. Seat Recline
To change the seatback angle, press
the front or rear side of the reclining
switch. Release the switch at the
desired position.
5. Lumbar Support Adjustment
To i n c r e a s e t h e s e a t firmness, press
and hold the front part of the
switch to the desired position, then
release it.
Press the rear part of the switch to
decrease firmness.

Before making adjustments to the
driving position recommended by
Mazda
Before making adju stments, move the
steering wheel and seat to their default
positions.
How to move the steering wheel to its
default position
WARNING
Never adjust the steering wheel while
the vehicle is moving:
Adjusting the steering wheel while the
vehicle is moving is dangerous. Moving
it can very easily cause the driver to
abruptly turn to the left or right. This
can lead to loss of control or an
accident.
Essential Safety Equipment
Seats
2-6
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Rear Seat
▼Split Folding the Seatbacks
By lowering the rear seatbacks the
luggage compartment space can be
expanded.
WARNING
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
2-14
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(4–Door)
1. Open the trunk lid and pull thelever of the seatback you want to
fold down.

2. Open a rear door and fold the rearseat forward.
(5–Door)
Press the push knob to fold down the
seatback.

To return the seatback to its upright
position:
WARNING
When returning a seatback to its
upright position, make sure the
3-point seat belt is not caught in the
seatback and the 3-point seat belt is
not twisted.
If the seat belt is used while it is
twisted and caught in the seatback, the
seat belt cannot function at its full
capacity, which could cause serious
injury or death.
When returning a seatback to its
upright position, make sure that it is
fi rmly locked and the red indication is
not visible (5–Door).
If the red indication is visible behind
the push knob, it means the seatback
is not locked. If the vehicle is driven
without the seatback locked, it could
fold down suddenly and cause an
accident.

1. Locked position
2. Unlocked position
3. Red indication
Essential Safety Equipment
Seats
2-15
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occupant in the center seat) or placed
upright.

WARNING
Never put your hands and fingers
around the moving parts of the seat
and armrest:
Putting your hands and fingers around
the moving parts of the seat and
armrest is dangerous as they could get
injured.
Head Restraints
▼ Head Restraints
Your vehicle is equipped with head
restraints on all outboard seats and the
rear center seat. The head restraints are
intended to help protect you and the
passengers from neck injury.
WARNING
Always drive with the head restraints
installed when seats are being used
and make sure they are properly
adjusted:
Driving with the head restraints
adjusted too low or removed is
dangerous. With no support behind
your head, your neck could be
seriously injured in a collision.
▼
Height Adjustment
Adjust the head restraint so that the
center is even with the top of the
passenger's ears.

To raise a head restraint, pull it up to
the desired position.
To lower the head restraint, press the
stop-catch release, then push the head
restraint down.
Essential Safety Equipment
Seats
2-17
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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.
WARNING
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
e
ff ectiveness of the head restraint will
be compromised which could cause it
to unexpectedly detach from the seat.
Essential Safety Equipment
Seats
2-18
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WARNING
Be careful when using the seat
warmer:
The heat from the seat warmer may be
too hot for the following people and
could cause a low-temperature burn.
Infants, small children, elderly
people, and physically challenged
people
 People with delicate skin
 People who are excessively fatigued
 People who are intoxicated
 People who have taken
sleep-inducing medicine such as
sleeping pills or cold medicine
Do not use the seat warmer with
anything having high
moisture-retention ability such as a
blanket or cushion on the seat:
The seat may be heated excessively
and cause a low-temperature burn.
Do not use the seat warmer even
when taking a short nap in the
vehicle:
The seat may be heated excessively
and cause a low-temperature burn.
Do not place heavy objects with sharp
projections on the seat, or insert
needles or pins into it:
This could cause the seat to become
excessively heated and result in injury
from a minor burn.
CAUTION
 Do not use organic solvents to clean
the seat. It may damage the seat
surface and the heater.
Heated Steering Wheel*
▼ Heated Steering Wheel
The grips on the left and right of the
steering wheel can be warmed up
when the ignition is switched ON.
While the heated steering wheel is
operating, the indicator light in the
heated steering wheel switch turns on.
1. Heated steering wheel switch
2. Heating area

Manual mode
The heated steering wheel operates for
about 30 minutes when the heated
steering wheel switch is pressed, and
then automatically turns o
ff.
To turn the heated steering wheel o ff
manually, press the switch again.
Essential Safety Equipment
Seat Warmer/Heated Steering Wheel
*Some models.2-21
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