2021 MAZDA MODEL 3 HATCHBACK weight

▼Front Passenger Air Bag
The front passenger air bag is mounted
in the front passenger dashboard.
The infl
ation mechanism for the front
passenger air bag is the same as the
driver's air bag.
For more details about air bag
deployment, refer to "SRS Air Bag
Deployment Criteria" (page 2-67).
(With Front Passenger Occupant
Classi fication System)
In addition, the front passenger air bag
is designed to only deploy in
accordance with the total seated
weight on the front passenger seat. For
details, refer to the front passenger
occupant classification system (page
2-70).
▼ Driver and Front Passenger Knee
Air Bags*
The knee air bags are equipped under
the instrument panel.
If the air bag crash sensors receive a
frontal impact of greater than
moderate force, the knee air bags
deploy immediately to reduce impact
to the driver and front passenger's
legs.
For more details about air bag
deployment, refer to "SRS Air Bag
Deployment Criteria" (page 2-67).
Essential Safety Equipment
SRS Air Bags
2-64*Some models.
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▼Side Air Bags
The side air bags are mounted in the
outboard sides of the front seatbacks.
When the air bag crash sensors detect
a side impact of greater than moderate
force, the system in
flates the side air
bag only on the side in which the
vehicle was hit. The side air bag in flates
quickly to reduce injury to the driver or
front passenger's chest caused by
directly hitting interior parts such as a
door or window.
For more details about air bag
deployment, refer to "SRS Air Bag
Deployment Criteria" (page 2-67).
(With Front Passenger Occupant
Classi fication System)
In addition, the front passenger side air
bag is designed to only deploy in
accordance with the total seated
weight on the front passenger seat. For
details, refer to the front passenger
occupant classi fication system (page
2-70).

▼ Curtain Air Bags
The curtain air bags are mounted in the
front and rear window pillars, and the
roof edge along both sides.
When the air bag crash sensors detect
a side impact of greater than moderate
force, the curtain air bag in
flates
quickly and helps to reduce injury
mainly to the driver and front and rear
outboard passengers' heads caused by
directly hitting interior parts such as a
door or window.
For more details about air bag
deployment, refer to "SRS Air Bag
Deployment Criteria" (page 2-67).
In a side impact:
Greater than moderate impact to one
side of the vehicle will cause the
curtain air bag on that side only to
in flate.

Only one side curtain air bag will
deploy on the side of the vehicle that
receives the force of an impact.
Essential Safety Equipment
SRS Air Bags
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SRS equip-ment Types of collision
A severe frontal/near frontal collision A severe side col-
lision A roll-over/near
roll-over
*2A rear collision
Front seat
belt preten- sioner X
*1X*1X*1
No air bag and
front seat belt
pretensioner will
be activated in a
rear collision.
Driver air
bag X
――
Front pas- senger air bag X
*1――
Knee air bag X
*1――
Side air bag ―X
*1 (impact side
only) ―
Curtain air bag ―
X (impact side
only) X (both sides)
X
: The SRS air bag equipment deploys in a collision.
― :The SRS air bag equipment does not deploy in a collision.
*1 (With Front Passenger Occupant Classifi cation System)
The front passenger front and side air bags, seat belt pretensioner and knee air bag are designed to
deploy depending on the condition of the total seated weight on the front passenger seat.
*2 (With Front Passenger Occupant Classifi cation System)
In a roll-over accident, the seat belt pretensioners and the curtain air bags deploy.
NOTE
In a frontal o ffset collision, the equipped air bags and pretensioners may all deploy
depending on the direction, angle, and rate of impact.
Essential Safety Equipment
SRS Air Bags
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▼Front Passenger Seat Weight
Sensors
Your vehicle is equipped with a front
passenger seat weight sensors as a part
of the supplemental restraint system.
These sensors are located under both
of the front passenger seat rails. These
sensors determine the total seated
weight on the front passenger seat and
monitor the seat belt buckle for the
front passenger seat. The SAS unit is
designed to prevent the front
passenger front and side air bags and
knee air bags, and seat belt
pretensioner system from deploying if
the front passenger air bag
deactivation indicator light illuminates.
To reduce the chance of injuries
caused by deployment of the front
passenger air bag, the system
deactivates the front passenger front
and side air bags and knee air bags,
and also the seat belt pretensioner
system when the front passenger air
bag deactivation indicator light
illuminates. Refer to the following
table for the front passenger air bag
deactivation indicator light
illumination conditions.

This system shuts o
ff 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 according to
the following table.

The air bag/front seat belt
pretensioner system warning light
fl ashes and the front passenger air bag
deactivation indicator light illuminates
if the sensors have a possible
malfunction. If this happens, the front
passenger front and side air bags and
knee air bags, and seat belt
pretensioner system will not deploy.
Front passenger air bag deactivation
indicator light
This indicator light illuminates to
remind you that the front passenger
front and side air bags and knee air
bags, and seat belt pretensioners will
not deploy during a collision.
Essential Safety Equipment
SRS Air Bags
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If the front passenger weight sensors
are normal, the indicator light
illuminates when the ignition is
switched ON. The light turns off after a
few seconds. Then, the indicator light
illuminates or is o ff under the following
conditions:
Front passenger air bag deactivation
indicator light on/off condition chart
Condition
detected by the
front pas-
senger oc- cupant
classifi ca-
tion sys- tem Front pas-
senger air
bag deacti-
vation indi- cator light Front pas-
senger
front and side andknee air
bags Front
passen-
ger seat
belt pre-
tensioner
system
Empty
(Not occu-
pied) On
Deactivat-
ed Deacti-
vated
Child or
child-re-
straint sys-
tem
*1
On Deactivat-
ed Deacti-
vated
Adult
*2Off Ready Ready
*1 If a larger child sits on the front passenger
seat, the sensors might detect the child as
being an adult depending on the child's
physique.
*2 If a smaller adult sits on the front passengerseat, the sensors might detect the person as
being a child depending on the person's
physique.
The curtain air bag is ready for in flating
regardless of what the front passenger air bag
deactivation indicator light on/o ff condition
chart indicates.

If the front passenger air bag
deactivation indicator light does not
illuminate when the ignition is
switched ON and does not illuminate
as indicated in the front passenger air
bag deactivation indicator light on/o ff
condition chart, do not allow a child to
sit in the front passenger seat and
consult an Authorized Mazda Dealer
as soon as possible. The system may
not work properly in an accident.
WARNING
Do not decrease the total seated
weight on the front passenger seat:
When an adult or large child sits on the
front passenger seat, decreasing the
total seated weight on the front
passenger seat required for air bag
deployment is dangerous. The front
passenger seat weight sensors will
detect the reduced total seated weight
condition and the front passenger front
and side air bags and knee air bags,
and the seat belt pretensioner system
will not deploy during an accident. The
front passenger will not have the
supplementary protection of the air
bag, which could result in serious
injury. Decreasing the total seated
weight on the front passenger seat
could result in an air bag not deploying
under the following conditions, for
example:
Essential Safety Equipment
SRS Air Bags
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A front passenger is seated as shown
in the following figure:
A rear passenger pushes up on the
front passenger seat with their feet.
Luggage or other items placed under
the front passenger seat or between
the front passenger seat and driver
seat that push up the front passenger
seat bottom.
 Any accessories which might
decrease the total seated weight on
the front passenger seat are attached
to the front passenger seat.
The front passenger front and side air
bags and knee air bags, and the seat
belt pretensioner system will
deactivate if the front passenger air
bag deactivation indicator light
illuminates.

Do not increase the total seated
weight on the front passenger seat:
When an infant or small child sits on
the front passenger seat, increasing the
total seated weight on the front
passenger seat is dangerous. The front
passenger seat we ight sensors will
detect the increased total seated
weight, which could result in the
unexpected deployment of the front
passenger front and side air bags and
knee air bags, and seat belt
pretensioner system in an accident and
may cause serious injury. Increasing the
total seated weight on the front
passenger seat could result in the front
passenger front and side air bags and
knee air bags, and seat belt
pretensioner system deployment in an
accident under the following
conditions, for example:
 Luggage or other items are placed on
the seat with the child in the
child-restraint system.
 A rear passenger or luggage push or
pull down on the front passenger
seatback.
Essential Safety Equipment
SRS Air Bags
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A rear passenger steps on the front
passenger seat rails with their feet.
 Luggage or other items are placed on
the seatback or hung on the head
restraint.
 Heavy items are placed in the
seatback map pocket.
 The seat is washed.
 Liquids are spilled on the seat.
 The front passenger seat is moved
backward, pushing into luggage or
other items placed behind it.
 The front passenger seatback
contacts the rear seat.
 Luggage or other items are placed
between the front passenger seat
and driver seat.
 Any accessories which might increase
the total seated weight on the front
passenger seat are attached to the
front passenger seat.
CAUTION
To assure proper deployment of the
front air bag and to prevent damage
to the sensors in the front seat
bottoms:
 Do not place sharp objects on the
front seat bottoms or leave heavy
luggage on them.
 Do not spill any liquids on the
front seats or under the front seats.
 To allow the sensors to function
properly, always perform the
following:
 Adjust the front seats as far back as
possible and always sit upright
against the seatbacks with seat
belts worn properly.
If you place your child on the front
passenger seat, secure the
child-restraint system properly and
slide the front passenger seat as far
back as possible (page 2-47).
NOTE
The system requires about 10
seconds to alternate between turning
the front passenger front and side air
bags and knee air bags, and seat belt
pretensioner system on or o ff.
The front passenger air bag
deactivation indicator light may
illuminate repeatedly if luggage or
other items are put on the front
passenger seat, or if the temperature
of the vehicle's interior changes
suddenly.
The front passenger air bag
deactivation indicator light may
illuminate for 10 seconds if the total
seated weight on the front passenger
seat changes.
The air bag/front seat belt
pretensioner system warning light
might illuminate if the front
passenger seat receives a severe
impact.
If the front passenger air bag
deactivation indicator light does not
illuminate after installing a
child-restraint system on the front
passenger seat,
first, re-install your
child-restraint system according to
the procedure in this owner's
manual. Then, if the front passenger
air bag deactivation indicator light
still does not illuminate, install the
child-restraint system on the rear seat
and consult an Authorized Mazda
Dealer as soon as possible.
Essential Safety Equipment
SRS Air Bags
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CAUTION
Before opening the liftgate/trunk lid,
remove any snow and ice
accumulation on it. Otherwise, the
liftgate/trunk lid could close under
the weight of the snow and ice
resulting in injury.
 Be careful when opening/closing the
liftgate/trunk lid during strong
winds. If a strong gust blows against
the liftgate/trunk lid, it could close
suddenly resulting in injury.
 Fully open the liftgate/trunk lid and
make sure that it stays open. If the
liftgate/trunk lid is only opened
partially, it could slam shut by
vibration or wind gusts resulting in
injury.
 When loading or unloading luggage
in the luggage compartment/trunk,
turn
off the engine. Otherwise, you
could get burned by the heat of the
exhaust gas.
 Be careful not to apply excessive
force to the damper stay on the
liftgate such as by putting your hand
on the stay. Otherwise, the damper
stay may bend and
aff ect the liftgate
operation.
1. Damper stay
 Do not modify or replace the liftgate
damper stay. Consult an Authorized
Mazda Dealer if a liftgate damper
stay is deformed or damaged for
reasons such as a collision or if there
is some other problem.
▼ Opening and Closing the Liftgate/
Tr u n k L i d
Opening the liftgate (5–door)
Using the electric liftgate opener
Unlock the doors and liftgate, then
press the electric liftgate opener on the
liftgate and raise the liftgate when the
latch releases.
NOTE
(With the advanced keyless function)
A locked liftgate can also be opened
while the key is being carried.
When opening the liftgate with the
doors and the liftgate locked, it may
require a few seconds for the liftgate
latch to release after the electric
liftgate opener is pressed.
Before Driving
Doors and Locks
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