warning MAZDA MODEL 3 HATCHBACK 2021 Owners Manual

▼Replacing a Wheel
WARNING
Always use wheels of the correct size
on your vehicle:
Using a wrong-sized wheel is
dangerous. Braking and handling could
be a
ffected, leading to loss of control
and an accident.
CAUTION
A wrong-sized wheel may adversely
a ff ect:
 Tire fit
 Wheel and bearing life
 Ground clearance
 Snow-chain clearance
 Speedometer calibration
 Headlight aim
 Bumper height
 Tire Pressure Monitoring System
NOTE
When replacing a wheel, make sure
the new one is the same as the
original factory wheel in diameter,
rim width, and o ffset (inset/outset).
For details, contact an Authorized
Mazda Dealer.

Proper tire balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tires can cause
vibration and uneven wear, such as
cupping and flat spots.
Light Bulbs
▼ Light Bulbs
Front
Ty p e A
1. Vanity mirror lights*
2. Overhead lights/ Front map lights
3. Side turn signal lights*
4. Front side-marker lights
5. Parking lights
6. Headlights (High/Low beam)/
Daytime running lights
7. Front turn signal lights
Ty p e B
1. Vanity mirror lights*
2. Overhead lights/ Front map lights
3. Side turn signal lights*
4. Parking lights/Front side-marker
lights
5. Headlights (High/Low beam)/ Daytime running lights
6. Front turn signal lights
Maintenance and Care
Owner Maintenance
*Some models.6-37
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WARNING
Do not replace the main fuse by
yourself. Have an Authorized
Mazda Dealer perform the
replacement:
Replacing the fuse by yourself is
dangerous because the MAIN fuse
is a high current fuse. Incorrect
replacement could cause an
electrical shock or a short circuit
resulting in a fire.
4. Reinstall the cover and make sure that it is securely installed.
Maintenance and Care
Owner Maintenance
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Water Marks
Occurrence
Rain, fog , dew, and even tap water can
contain harmful minerals such as salt
and lime. If moisture containing these
minerals settles on the vehicle and
evaporates, the minerals will
concentrate and harden to form white
rings. The rings can damage your
vehicle's finish.
Prevention
It is necessary to wash and wax your
vehicle to preserve its finish according
to the instructions in this section.
These steps should be taken
immediately after you find water marks
on your vehicle's finish.
Pa i n t C h i p p i n g
Occurrence
Paint chipping occurs when gravel
thrown in the air by another vehicle's
tires hits your vehicle.
How to avoid paint chipping
Keeping a safe distance between you
and the vehicle ahead reduces the
chances of having your paint chipped
by flying gravel.
NOTE
The paint chipping zone varies with
the speed of the vehicle. For
example, when traveling at 90 km/h
(56 mph), the paint chipping zone is
50 m (164 ft).
In low temperatures a vehicle's finish
hardens. This increases the chance of
paint chipping.
Chipped paint can lead to rust
forming on your Mazda. Before this
happens, repair the damage by using
Mazda touch-up paint according to
the instructions in this section.
Failure to repair the a ffected area
could lead to serious rusting and
expensive repairs.

Follow all label and container
directions when using a chemical
cleaner or polish. Read all warnings
and cautions.
▼ Maintaining the Finish
Washing
CAUTION

Before lifting the windshield wiper
blades o ff the windshield, always
follow the procedure for moving the
windshield wiper blades. Otherwise,
a wiper blade, wiper arm, or the
hood could be damaged.
Refer to the Replacing Windshield
Wiper Blades (page 6-24) section for
the procedure on how to move the
windshield wiper blades to the
service position.
 When the ignition is switched ON
and the wiper lever is in the AUTO
position and the position, the
windshield wipers may operate
automatically in the following cases:
 The area of the windshield above
the rain sensor is touched or wiped
with a cloth.
 The windshield or the rain sensor
area in the cabin is hit.
Maintenance and Care
Appearance Care
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Pay special attention to removing salt,
dirt, mud, and other foreign material
from the underside of the fenders, and
make sure the drain holes in the lower
edges of the doors and rocker panels
are clean.

Insects, tar, tree sap, bird droppings,
industrial fallout, and similar deposits
can damage the finish if not removed
immediately. When prompt washing
with plain water is ineffective, use a
mild soap made for use on vehicles.

Thoroughly rinse o ff all soap with
lukewarm or cold water. Do not allow
soap to dry on the finish.

After washing the vehicle, dry it with a
clean chamois to prevent water spots
from forming.
WARNING
Dry o ff brakes that have become wet
by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to normal:
Driving with wet brakes is dangerous.
Increased stopping distance or the
vehicle pulling to one side when
braking could result in a serious
accident. Light braking will indicate
whether the brakes have been
a ff ected.
When using an automatic car wash
Retract the door mirrors.The automatic car wash brushes
could reduce the paint lustre or
hasten paint deterioration.
When using a high water pressure car
wash
High water temperature and high
water pressure car washers are
available depending on the type of car
wash machine. If the car washer nozzle
is put too close to the vehicle, the
force of the spray could damage or
deform the molding , aff ect the
sealability of parts, and allow water to
penetrate the interior. Keep a su fficient
space (30 cm (12 in) or more)
between the nozzle and the vehicle. In
addition, do not spend too much time
spraying the same area of the vehicle,
and be very careful when spraying
between gaps in doors and around
windows.
Waxing
Your vehicle needs to be waxed when
water no longer beads on the finish.
Always wash and dry the vehicle before
waxing it. In addition to the vehicle
body, wax the metal trim to maintain
its luster.

1. Use wax which contains no abrasives.
Wax containing abrasives will
remove paints and could damage
bright metal parts.
2. Use a good grade of natural wax for metallic, mica, and solid colors.
3. When waxing, coat evenly with the sponge supplied or a soft cloth.
4. Wipe o ff the wax with a soft cloth.
NOTE
A spot remover to remove oil, tar, and
similar materials will usually also take
o ff the wax. Rewax these areas even if
the rest of the vehicle does not need it.
Maintenance and Care
Appearance Care
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▼Repairing Damage to the Finish
Deep scratches or chips on the
finish
should be repaired promptly. Exposed
metal quickly rusts and can lead to
major repairs.
CAUTION
If your Mazda is damaged and needs
metal parts repaired or replaced, make
sure the body shop applies
anti-corrosion materials to all parts,
both repaired and new. This will
prevent them from rusting.
▼ Bright-Metal Maintenance
Use tar remover to remove road tar
and insects. Never do this with a
knife or similar tool.
To prevent corrosion on bright-metal
surfaces, apply wax or chrome
preservative and rub it to a high
luster.
During cold weather or in coastal
areas, cover bright-metal parts with a
coating of wax or preservative
heavier than usual. It would also help
to coat them with noncorrosive
petroleum jelly or some other
protective compound.
CAUTION
Do not use steel wool, abrasive
cleaners, or strong detergents
containing highly alkaline or caustic
agents on chrome-plated or anodized
aluminum parts. This may result in
damage to the protective coating and
cause discoloration or paint
deterioration.
▼ Underbody Maintenance
Road chemicals and salt used for ice
and snow removal and solvents used
for dust control may collect on the
underbody. If not removed, they will
speed up rusting and deterioration of
such underbody parts as fuel lines,
frame,
floor pan, and exhaust system,
even though these parts may be coated
with anti-corrosive material.

Thoroughly flush the underbody and
wheel housings with lukewarm or cold
water at the end of each winter. Try
also to do this every month.

Pay special attention to these areas
because they easily hide mud and dirt.
It will do more harm than good to wet
down the road grime without
removing it.

The lower edges of doors, rocker
panels, and frame members have drain
holes that should not be clogged.
Water trapped there will cause rusting.
WARNING
Dry off brakes that have become wet
by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to normal:
Driving with wet brakes is dangerous.
Increased stopping distance or the
vehicle pulling to one side when
braking could result in a serious
accident. Light braking will indicate
whether the brakes have been
a ff ected.
Maintenance and Care
Appearance Care
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Interior Care
▼Interior Care
WARNING
Do not spray water into the vehicle
cabin:
Spraying water into the vehicle cabin is
dangerous as electrical devices such as
the audio and switches could get wet
resulting in a malfunction or vehicle
fire.
NOTE
Do not wipe the interior using
alcohol, chlorine bleach, or organic
solvents such as thinner, benzene,
and gasoline. Otherwise, it may
cause discoloration or stains.
Rubbing hard with a sti
ff brush or
cloth may cause damage.
If the vehicle interior becomes soiled
by any of the following, wipe it o ff
immediately using a soft cloth.
Leaving it uncleaned could cause
discoloration, stains, cracks, or peeling
of the coating , and it will make it hard
to wipe o ff later.
Beverage or fragranceGrease or oilSoiling
▼ Seat Belt Maintenance
1. Clean the soiled area by lightly
dabbing it with a soft cloth soaked
in a mild detergent (approx. 5%)
diluted with water.
2. Wipe o ff the remaining detergent
using a cloth soaked in clean water
and wrung out well.
3. Before retracting seat belts which have been pulled out for cleaning,
dry them o ff thoroughly and make
sure there is no remaining moisture
on them.
WARNING
If a seat belt appears frayed or has
abrasions, have it replaced by an
Authorized Mazda Dealer:
If a seat belt is used under such a
condition, it cannot function at its full
capacity which could result in serious
injury or death.
Use a mild detergent to remove
soiling from a seat belt:
If organic solvents are used for cleaning
the seat belts or they become stained
or bleached, there is the possibility of
them becoming weakened and as a
result, they may not function at their
full capacity which could cause serious
injury or death.
NOTE
Clean seat belts diligently if they get
dirty. Leaving them uncleaned will
make it di fficult to clean them later,
and it may aff ect the smooth retracting
of the seat belt.
▼ Vinyl Upholstery Maintenance
Remove dust and dirt from the vinyl
upholstery using a brush or vacuum.
Remove soiling from vinyl upholstery
using a leather and vinyl upholstery
cleaner.
Maintenance and Care
Appearance Care
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▼Active Driving Display
Maintenance*
The dust-proof sheet has a coating.
When cleaning , do
not use a hard or
rough-surface cloth, or cleaning
detergent. In addition, if a chemical
solvent gets on the active driving
display, wipe it o ff immediately. The
dust-proof sheet could be damaged
and the surface coating could be
scratched. Use a fine, soft cloth such as
those used for cleaning eyeglasses.
NOTE
Use of compressed air when cleaning
the dust-proof sheet is recommended.
▼ Panel Maintenance
If a panel becomes soiled, wipe it o
ff
with a soft cloth soaked in clean water
and thoroughly wrung out.
If some areas require further cleaning ,
use the following procedure:
1. Wipe the soiled area with a soft cloth soaked in a mild detergent
(approx. 5 %) diluted with water.
2. Wipe o ff the remaining detergent
using a cloth soaked in clean water
and wrung out well.
NOTE
Be particularly careful when cleaning
shiny surface panels and metallic parts
such as plating as they can be
scratched easily.
▼ Cleaning the Window Interiors
If the windows become covered with
an oily, greasy, or waxy
film, clean
them with glass cleaner. Follow the
directions on the container.
CAUTION
 Do not scrape or scratch the inside
of the window glass. It could
damage the thermal filaments and
the antenna lines.
 When washing the inside of the
window glass, use a soft cloth
dampened in lukewarm water, gently
wiping the thermal filaments and the
antenna lines.
Use of glass cleaning products could
damage the thermal filaments and
the antenna lines.
▼ Cleaning the Floor Mats
Rubber
floor mats should be cleaned
with mild soap and water only.
WARNING
Do not use rubber cleaners, such as
tire cleaner or tire shine, when
cleaning rubber floor mats:
Cleaning the rubber floor mats with
rubber cleaning products makes the
fl oor mats slippery.
This may cause an accident when
depressing the accelerator, brake, or
clutch (Manual transmission) pedal or
when getting in or out of the vehicle.
After removing the floor mats for
cleaning, always reinstall them securely
(page 3-46).
Maintenance and Care
Appearance Care
6-56*Some models.
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7If Trouble Arises
Helpful information on what to do if a problem arises with the
vehicle.
Parking in an Emergency............ 7-2 Parking in an Emergency......... 7-2
Flat Tire................................... 7-3 Spare Tire and Tool Storage ..........
............................................ 7-3
Changing a Flat Tire................7-7
Battery Runs Out..................... 7-17 Jump-Starting...................... 7-17
Emergency Starting................. 7-20 Starting a Flooded Engine..... 7-20
Push-Starting....................... 7-20
Overheating........................... 7-21 Overheating........................ 7-21
Emergency Towing.................. 7-23 Towing Description.............. 7-23
Tiedown Hooks
*.................. 7-24
Warning/Indicator Lights and
Warning Sounds..................... 7-27If a Warning Light Turns On or
Flashes................................ 7-27
Message Indicated on Multi-
information Display............. 7-39
Warning Sound is
Activated.............................7-42
When Liftgate/Trunk Lid Cannot be
Opened................................. 7-48 When Liftgate/Trunk Lid Cannot
be Opened..........................7-48
Active Driving Display Does Not
Operate................................. 7-50 If the Active Driving Display Does
Not Operate
*....................... 7-50
Windshield Wipers Operate at High
Speed.................................... 7-51 Windshield Wipers Operate at
High Speed......................... 7-51
*Some models.7-1
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Parking in an Emergency
▼Parking in an Emergency
The hazard warning lights should
always be used when you stop on or
near a roadway in an emergency.

The hazard warning lights warn other
drivers that your vehicle is a tra
ffic
hazard and that they must take
extreme caution when near it.

Depress the hazard warning flasher
and all the turn signals will flash. The
hazard warning indicator lights in the
instrument cluster flash simultaneously.
NOTE
The turn signals do not work when
the hazard warning lights are on.
Check local regulations about the
use of hazard warning lights while
the vehicle is being towed to verify
that it is not in violation of the law.
If Trouble Arises
Parking in an Emergency
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5–Door
Perform the removal procedure in
reverse.
Maintenance
Always keep the jack clean.Make sure the moving parts are kept
free from dirt or rust.
Make sure the screw thread is
adequately lubricated.
▼Spare Tire
Your Mazda has a temporary spare tire.
The temporary spare tire is lighter and
smaller than a conventional tire, and is
designed only for emergency use and
should be used only for VERY short
periods. Temporary spare tires should
NEVER be used for long drives or
extended periods.
WARNING
Do not install the temporary spare tire
on the front wheels (driving wheels):
Driving with the temporary spare tire
on one of the front driving wheels is
dangerous. Handling will be a
ffected.
You could lose control of the vehicle,
especially on ice or snow bound roads,
and have an accident. Move a regular
tire to the front wheel and install the
temporary spare tire to the rear.
CAUTION
 When using the temporary spare tire,
driving stability may decrease
compared to when using only the
conventional tire. Drive carefully.
 To avoid damage to the temporary
spare tire or to the vehicle, observe
the following precautions:
 Do not exceed 80 km/h (50 mph).
 Avoid driving over obstacles. Also,
do not drive through an automatic
car wash. This tire's diameter is
smaller than a conventional tire, so
the ground clearance is reduced.
 Do not use a tire chain on this tire
because it will not
fit properly.
 Do not use your temporary spare
tire on any other vehicle, it has
been designed only for your
Mazda.
 Use only one temporary spare tire
on your vehicle at the same time.
To remove the spare tire
4–Door
1. Remove the trunk mat.
If Trouble Arises
Flat Tire
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