MAZDA MODEL 3 SEDAN 2021 User Guide

▼5-Door
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Luggage compartment cover.............................................................. page 3-22
„ Anchor brackets................................................................................ page 2-42
… Luggage compartment light................................................................ page 5-39
Pictorial Index
Interior Overview
The equipment and installation position varies by vehicle1-7
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4-Door
▼4-Door
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Windshield wiper blades................................................................... page 6-23
„ Moonroof......................................................................................... page 3-37
… Door................................................................................................ page 3-11
† Window........................................................................................... page 3-34
‡ Touch sensor.....................................................................................page 3-13
ˆ Fuel- filler lid......................................................................................page 3-27
‰ Outside mirror.................................................................................. page 3-30
Š Touch sensor.....................................................................................page 3-13
‹ Trunk lid........................................................................................... page 3-19
ΠElectric trunk lid opener..................................................................... page 3-20
Pictorial Index
Exterior Overview
1-8The equipment and installation position varies by vehicle
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5-Door
▼5-Door
ƒ
Windshield wiper blades................................................................... page 6-23
„ Moonroof......................................................................................... page 3-37
… Door................................................................................................ page 3-11
† Window........................................................................................... page 3-34
‡ Touch sensor.....................................................................................page 3-13
ˆ Fuel- filler lid......................................................................................page 3-27
‰ Outside mirror.................................................................................. page 3-30
Š Touch sensor.....................................................................................page 3-13
‹ Liftgate............................................................................................. page 3-19
ΠElectric liftgate opener....................................................................... page 3-20
Rear window wiper blade.............. .................................................... page 6-27
Pictorial Index
Exterior Overview
The equipment and installation position varies by vehicle1-9
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MEMO
1-10
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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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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.
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.
Additionally, if the air bags deploy, the
cargo may scatter which could result in
serious injury or death.Never allow a passenger to sit or
stand on the folded seatback while
the vehicle is moving:
Driving with a passe nger 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
2-3
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CAUTION
When operating a seat, be careful
not to put your hands or fingers near
the moving parts of the seat or on
the side trim to prevent injury.
 When moving the seats, make sure
there is no cargo in the surrounding
area. If the cargo gets caught it could
damage the cargo.
 (Manual Seat)
When moving the seats forward and
rearward or returning a rear-reclined
seatback to its upright position,
make sure you hold onto the
seatback with your hand while
operating. If the seatback is not held,
the seat will move suddenly and
could cause injury.
 When inserting your hand under the
seat to clean the cabin or pick up
something you dropped under the
seat, be careful not to hurt yourself.
If you contact the moving parts and
surrounding parts around the seat
rail, seat frame, and the bottom of
the seat, it could result in injury.
NOTE
When returning a rear seat to its
original position, place the seat belt
in its normal position. Verify that the
seat belt pulls out and retracts.
(Power Seat)
The seat-bottom power adjustment
is operated by motors. Avoid
extended operation because
excessive use can damage the
motors.
To prevent the battery from
running down, avoid using the
power adjustment when the
engine is stopped. The adjuster
uses a large amount of electrical
power.
Do not use the switch to make
more than one adjustment at a
time.
Essential Safety Equipment
Seats
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Front Seat
▼Adjusting the Driver's Seat
Using the driving position set up
procedure recommended by Mazda
allows you to maintain a relaxed
posture, drive the vehicle for longer
periods without feeling tired, and
make quick operations naturally.
Also, you can be assured of a clear
view in the forward direction to help
you drive more safely and comfortably.
The adjustments for the driving
position recommended by Mazda are
done using the following procedures.
1. Moving the steering wheel and seat
to their default positions.
2. Adjusting the seatback angle.
3. Adjusting the seat position forward and back.
4. Adjusting the seat height.
5. Adjusting the height on the front edge of the seat bottom.
6. Adjusting the steering wheel position.
7. Adjusting the head restraint position.
Manual seat
1.Seat Slide
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. Height Adjustment
To adjust the seat height, move the
lever up or down.
3. Height Adjustment for Front Edge
of Seat Bottom
To adjust the height for front edge
of the seat bottom, rotate the dial
to the desired position.
Essential Safety Equipment
Seats
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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
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