oil change MAZDA MODEL 3 HATCHBACK 2021 Owners Manual

Do not operate a vehicle with a
damaged seat belt:
Using a damaged seat belt is
dangerous. An accident could damage
the belt webbing of the seat belt in
use. A damaged seat belt cannot
provide adequate protection in a
collision. Have an Authorized Mazda
Dealer inspect all seat belt systems in
use during an accident before they are
used again.
Have your seat belts changed
immediately if the pretensioner or
load limiter has been expended:
Always have an Authorized Mazda
Dealer immediately inspect the seat
belt pretensioners and air bags after
any collision. Like the air bags, the seat
belt pretensioners and load limiters
will only function once and must be
replaced after any collision that caused
them to deploy. A seat belt with an
expended pretensioner or load limiter
is still better than wearing no seat belt
at all; however, if the seat belt
pretensioners and load limiters are not
replaced, the risk of injury in a collision
will increase.
Positioning the Shoulder Portion of
the Seat Belt:
Improper positioning of the shoulder
portion of the seat belt is dangerous.
Always make sure the shoulder portion
of the seat belt is positioned across
your shoulder and near your neck, but
never under your arm, on your neck, or
on your upper arm.Positioning the Lap Portion of the Seat
Belt:
The lap portion of the seat belt worn
too high is dangerous. In a collision,
this would concentrate the impact
force directly on the abdominal area,
causing serious injury. Wear the lap
portion of the belt snugly and as low as
possible.
CAUTION
Belt retraction may become difficult if
the belts and rings are soiled, so try to
keep them clean. For more details
about cleaning the seat belts, refer to
"Seat Belt Maintenance" (page
6-54).

1. Ring

Essential Safety Equipment
Seat Belt Systems
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Driving on Uneven Road
▼Driving on Uneven Road
Your vehicle's suspension and
underbody can be damaged if driven
on rough/uneven roads or over speed
bumps at excessive speeds. Use care
and reduce speed when traveling on
rough/uneven roads or over speed
bumps.

Use care not to damage the vehicle's
underbody, bumpers or
muffler(s)
when driving under the following
conditions:
Ascending or descending a slope
with a sharp transition angle
Ascending or descending a driveway
or trailer ramp with a sharp transition
angle

This vehicle is equipped with low
pro file tires allowing class-leading
performance and handling. As a result,
the sidewall of the tires are very thin
and the tires and wheels can be
damaged if driven through potholes or
on rough/uneven roads at excessive
speeds. Use care and reduce speed
when traveling on rough/uneven roads
or through potholes.
Turbocharger Information
(SKYACTIV -G 2.5T)
▼ Turbocharger Information
(SKYACTIV
-G 2.5T)
CAUTION

After driving at freeway speeds or up
a long hill, idle the engine at least 30
seconds before stopping it.
Otherwise, the turbocharger could
be damaged.
 Racing or over-revving the engine,
particularly after it's just been
started, can damage the
turbocharger.
 To protect the engine from damage,
the engine is designed so that it
cannot be raced just after starting it
in extremely cold weather.
The turbocharger greatly enhances
engine power. Its advanced design
provides improved operation and
requires minimum maintenance.

To get the most from it, observe the
following.
1. Change engine oil and filter
according to Scheduled
Maintenance.
Refer to Scheduled Maintenance
(U.S.A. and Puerto Rico) on page
6-4.
Refer to Scheduled Maintenance
(Canada) on page 6-6.
Refer to Scheduled Maintenance
(Mexico) on page 6-9.
2. Use only recommended engine oil (page 6-17). Extra additives are
NOT recommended.
Before Driving
Driving Tips
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The vehicle is driven on roads with
lane lines other than white (yellow)
lines, such as an expressway.

Do not get out of the vehicle while
the stop hold control is operating.
(Automatic transmission vehicle)
Getting out of the vehicle while the
stop hold control is operating is
dangerous as the vehicle may move
unexpectedly and result in an accident.
Before getting out of the vehicle,
switch the TJA o ff, apply the parking
brake, and then shift the selector lever
to the P position.

CAUTION
Turn the system off when the vehicle is
running on a chassis roller.
Heed the following cautions so that
the TJA can operate normally.
 Turn the system o ff when the vehicle
is running on a chassis roller.
 Do not modify the vehicle's
suspensions.
 Always use wheels of the speci fied
size for the front and rear wheels.
Consult an Authorized Mazda Dealer
for tire replacement.

NOTE
The headway control does not detect
the following as physical objects.
Vehicles approaching in the
opposite direction
Pe d e s t r i a n sStationary objects (stopped
vehicles, obstructions)
If a vehicle ahead is traveling at an
extremely low speed, the system may
not detect it correctly.
If there is a structure on the road or
an object (such as a monorail) at a
low height o ff the ground in front of
the vehicle, the system may operate.
Therefore, do not use the TJA.
Do not use the TJA under conditions
in which close proximity warnings
are frequently activated.
If it is necessary to accelerate for a
lane change or the vehicle ahead
brakes suddenly causing you to close
in on the vehicle rapidly, accelerate
using the accelerator pedal or
decelerate using the brake pedal
depending on the conditions.
While the TJA is in use, any intended
engine braking does not occur even
if you shift the shift lever (manual
transmission) or the selector lever
(automatic transmission). If
deceleration is required, lower the
vehicle speed setting or depress the
brake pedal.
While braking by the TJA control is
operating , you might hear an
operation sound, however, this does
not indicate a problem.
The brake lights turn on while
braking by the TJA control is
operating , however, they may not
turn on while the vehicle is on a
down slope at the set vehicle speed
or traveling at a constant speed and
following a vehicle ahead.
Under the following conditions, the
TJA may not be able to detect white
(yellow) lines or vehicles ahead
correctly and the TJA may not
operate normally.
The forward sensing camera (FSC)
cannot recognize the area in front
of the vehicle due to soiling or fog.
When Driving
i-ACTIVSENSE
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The white (yellow) lane lines are
less visible because of dirt or paintfl aking.
White (yellow) lane lines or
vehicles ahead are less visible
because of bad weather (rain, fog,
or snow).
The vehicle is driven on a
temporary lane or section with a
closed lane resulting from
construction where there might be
multiple white (yellow) lane lines,
or they are interrupted.
The camera picks up an obscure
line, such as a temporary line being
used for construction, or because
of shade, unmelted snow, or
grooves filled with water.
The road surface is wet and shiny
after rain, or there are puddles on
the road.
Heavy luggage is loaded in the
trunk/luggage compartment or on
the rear seat causing the vehicle to
tilt.
A vehicle in front of your vehicle is
running near a white (yellow) lane
line making it less visible.
The windshield is dirty or foggy.The vehicle is driven through an
intersection, a junction, or a fork in
the road.
While white (yellow) lane lines
cannot be detected due to road or
weather conditions.
The surrounding brightness
suddenly changes such as when
entering or exiting a tunnel.
The illumination of the headlights
is weakened because of dirt or the
optical axis is deviated at night.
Back-light is re flected off the road
surface or the road surface is wet
and shiny after rain.
The shade of a guardrail parallel to
a white (yellow) lane line is cast on
the road.
The width of a lane is excessively
narrow or wide.
The road is excessively uneven.The vehicle is shaken after hitting a
road bump.
There are various road markings or
division lines (lane markings) of
various shapes near an
intersection.
The area in front of the camera is
soiled or an object that obstructs
the field of view is installed.
Exhaust gas from the vehicle in
front, sand, snow, and water vapor
rising from manholes and grating ,
and water splashed into the air.
The surroundings are dark such as
during the early evening or early
morning.
A vehicle ahead with a certain
taillight shape.
A vehicle ahead veers o ff course
from your vehicle's line of travel.
A vehicle ahead is driving
erratically.
The vehicle is driven on roads with
tight curves.

Headway control function
If a vehicle ahead is detected while
traveling at a constant speed, the
vehicle-ahead indication is displayed
and headway control is performed.

When Driving
i-ACTIVSENSE
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Do not remove the Forward
Sensing Camera (FSC) cover.
 Do not place objects on the
dashboard which re flect light.
 Always keep the windshield glass
around the camera clean by
removing dirt or fogging. Use the
windshield defroster to remove
fogging on the windshield.
 Consult an Authorized Mazda
Dealer regarding cleaning the
interior side of the windshield
around the Forward Sensing
Camera (FSC).
 Consult an Authorized Mazda
Dealer before performing repairs
around the Forward Sensing
Camera (FSC).
 The Forward Sensing Camera (FSC)
is installed to the windshield.
Consult an Authorized Mazda
Dealer for windshield repair and
replacement.
 When cleaning the windshield, do
not allow glass cleaners or similar
cleaning fluids to get on the
Forward Sensing Camera (FSC)
lens. In addition, do not touch the
Forward Sensing Camera (FSC)
lens.
 When performing repairs around
the rearview mirror, consult an
Authorized Mazda Dealer.
 Consult an Authorized Mazda
Dealer regarding cleaning of the
camera lens.
 Do not hit or apply strong force to
the Forward Sensing Camera (FSC)
or the area around it. If the
Forward Sensing Camera (FSC) is
severely hit or if there are cracks or
damage caused by flying gravel or
debris in the area around it, stop
using the following systems and
consult an Authorized Mazda
Dealer. High Beam Control System
(HBC)
 Lane Departure Warning System
(LDWS)
 Tra ffic Sign Recognition System
(TSR)
 Distance & Speed Alert (DSA)
 Driver Attention Alert (DAA)
 Mazda Radar Cruise Control
(MRCC)
 Mazda Radar Cruise Control
with Stop & Go function (MRCC
with Stop & Go function)
 Lane-keep Assist System (LAS)
 Tra ffic Jam Assist (TJA)
 Smart Brake Support (SBS)
 The direction in which the Forward
Sensing Camera (FSC) is pointed
has been fi nely adjusted. Do not
change the installation position of
the Forward Sensing Camera (FSC)
or remove it. Otherwise, it could
result in damage or malfunction.
 Always use tires for all wheels that
are of the
specified size, and the
same manufacturer, brand, and tread
pattern. In addition, do not use tires
with significantly
di fferent wear
patterns on the same vehicle as the
system may not operate normally.
 The Forward Sensing Camera (FSC)
includes a function for detecting a
soiled windshield and informing the
driver, however, depending on the
conditions, it may not detect plastic
shopping bags, ice or snow on the
windshield. In such cases, the system
cannot accurately determine a
vehicle ahead and may not be able
to operate normally. Always drive
carefully and pay attention to the
road ahead.
When Driving
i-ACTIVSENSE
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Do not adhere stickers (including
transparent stickers) to the surface of
the radiator grille and front emblem
in and around the front radar sensor,
and do not replace the radiator grille
and front emblem with any product
that is not a genuine product
designed for use with the front radar
sensor.
 The front radar sensor includes a
function for detecting soiling of the
radar sensor's front surface and
informing the driver, however,
depending on the conditions, it may
require time to detect or it may not
detect plastic shopping bags, ice or
snow. If this occurs, the system may
not operate correctly, therefore
always keep the front radar sensor
clean.
 Do not install a grille guard.
 If the front part of the vehicle has
been damaged in a vehicle accident,
the position of the front radar sensor
may have moved. Stop the system
immediately and always have the
vehicle inspected at an Authorized
Mazda Dealer.
 Do not use the front bumper to push
other vehicles or obstructions such
as when pulling out of a parking
space. Otherwise, the front radar
sensor could be hit and its position
deviated.
 Do not remove, disassemble, or
modify the front radar sensor.
 For repairs, replacement or paint
work around the front radar sensor,
consult an Authorized Mazda Dealer.
 Do not modify the suspensions. If
the suspensions are modi fied, the
vehicle's posture could change and
the front radar sensor may not be
able to correctly detect a vehicle
ahead or an obstruction.NOTE
Under the following conditions, the
front radar sensor may not be able to
detect vehicles ahead or obstructions
correctly and each system may not
operate normally.
The rear surface of a vehicle ahead
does not reflect radio waves
e ff ectively, such as an unloaded
trailer or an automobile with a
loading platform covered by a soft
top, vehicles with a hard plastic
tailgate, and round-shaped
vehicles.
Vehicles ahead with low vehicle
height and thus less area for
re flecting radio waves.
Visibility is reduced due to a
vehicle ahead casting off
water,
snow, or sand from its tires and
onto your windshield.
The trunk/luggage compartment is
loaded with heavy objects or the
rear passenger seats are occupied.
Ice, snow, or soiling is on the front
surface of the front emblem.
During inclement weather such as
rain, snow, or sand storms.
When driving near facilities or
objects emitting strong radio
waves.
Under the following conditions, the
front radar sensor may not be able to
detect vehicles ahead or
obstructions.
The beginning and end of a curve.Roads with continuous curves.Narrow lane roads due to road
construction or lane closures.
The vehicle ahead enters the radar
sensor's blind spot.
The vehicle ahead is running
abnormally due to accident or
vehicle damage.
When Driving
i-ACTIVSENSE
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Owner MaintenancePrecautions
▼Owner Maintenance Precautions
The owner or a qualified service
technician should make these vehicle
inspections at the indicated intervals to
ensure safe and dependable
operation.

Bring any problem to the attention of
an Authorized Mazda Dealer or
qualifi
ed service technician as soon as
possible.
When Refueling
Brake and clutch fluid level (page
6-21)
Engine coolant level (page 6-20)Engine oil level (page 6-19)Washer fluid level (page 6-22)
At Least Monthly
Tire in flation pressures (page 6-34)
At Least Twice a Year (For Example,
Every Spring and Fall)
You can do the following scheduled
maintenance items if you have some
mechanical ability and a few basic
tools and if you closely follow the
directions in this manual.
Engine coolant (page 6-20)Engine oil (page 6-19)

Improper or incomplete service may
result in problems. This section gives
instructions only for items that are easy
to perform.

As explained in the Introduction (page
6-2), several procedures can be done
only by a qualifi ed service technician
with special tools.

Improper owner maintenance during
the warranty period may a ffect
warranty coverage. Refer to
Introduction (page 6-2) for owner's
responsibility in protecting your
investment. For details, read the
separate Mazda Warranty statement
provided with the vehicle. If you are
unsure about any servicing or
maintenance procedure, have it done
by an Authorized Mazda Dealer.

There are strict environmental laws
regarding the disposal of waste oil and
fl uids. Please dispose of your waste
properly and with due regard to the
environment.

We recommend that you entrust the oil
and fluid changes of your vehicle to an
Authorized Mazda Dealer.
WARNING
Do not perform maintenance work if
you lack su fficient knowledge and
experience or the proper tools and
equipment to do the work. Have
maintenance work done by a
quali fied technician:
Performing maintenance work on a
vehicle is dangerous if not done
properly. You can be seriously injured
while performing some maintenance
procedures.
Maintenance and Care
Owner Maintenance
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Body Lubrication
▼Body Lubrication
All moving points of the body, such as
door and hood hinges and locks,
should be lubricated each time the
engine oil is changed. Use a
nonfreezing lubricant on locks during
cold weather.

Make sure the hood's secondary latch
keeps the hood from opening when
the primary latch is released.
Wiper Blades
▼Wiper Blades
CAUTION

Hot waxes applied by automatic car
washers have been known to
aff ect
the wiper's ability to clean windows.
 To prevent damage to the wiper
blades, do not use gasoline,
kerosene, paint thinner, or other
solvents on or near them.
 When the wiper lever is in the AUTO
position and the ignition is switched
ON, the wipers may move
automatically in the following cases:
 If the windshield above the rain
sensor is touched.
 If the windshield above the rain
sensor is wiped with a cloth.
 If the windshield is struck with a
hand or other object.
 If the rain sensor is struck with a
hand or other object from inside
the vehicle.
Be careful not to pinch hands or fingers as it may cause injury, or
damage the wipers. When washing
or servicing the vehicle, make sure
the wiper lever is in the OFF
position.
Maintenance and Care
Owner Maintenance
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