2021 MAZDA MODEL 3 HATCHBACK Owners Manual

▼Fuse Panel Description
Fuse block (Engine compartment)
No. FUSE RAT
-
ING PROTECTED COMPONENT
F1 ――
F2 20 A Windshield wiper de-icer
*
F330 A Engine control system
20 A
―
F4 20 A S -VT
F5 40 A Engine control system
F6 20 A ―
Maintenance and Care
Owner Maintenance
*Some models.6-43
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No.FUSE RAT
-
ING PROTECTED COMPONENT
F7 15 A
―
20 A Fuel pump
F8 15 A Engine control system
F9 15 A Transmission control system
*
F1015 A Engine control system
F11 7.5 A Air conditioner
F12 15 A Engine control system
F13 15 A ―
F14 20 A
Front seat warmer
*
F15 20 A ―
F16 15 A For protection of various circuits
F17 ――
F18 15 A For protection of various circuits
F19 60 A Power steering system
F20 15 A Headlight (LH) 1
F21 15 A Headlight (RH) 1
F22 15 A Keyless system
F23 30 A ABS, Dynamic stability control system
F24 15 A Headlight (LH) 2
F25 15 A Headlight (RH) 2
F26 7.5 A On board diagnostics
F27 25 A For protection of various circuits
F28 25 A For protection of various circuits
F29 15 A Windshield washer
F30 15 A Accessory sockets
F31 15 A Horn
F32 ――
F33 ――
F34 ――
F35 50A ABS, Dynamic stability control system
F36 ――
F37 40 A Rear window defogger
F38 50 A For protection of various circuits
Maintenance and Care
Owner Maintenance
6-44*Some models.
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No.FUSE RAT
-
ING PROTECTED COMPONENT
F39 ――
F40 40 A Air conditioner
F41 ――
F42 20 A Windshield wipers
F43 30 A Cooling fan
F44 30 A Starter
F45 10 A Engine control system
F46 15 A Audio
F47 15 A For protection of various circuits
F48 7.5 A Air bag
F49 15 A Instrument cluster
F50 15 A Room light
F51 25 A Audio
F52 10 A
Moonroof
*
F53 15 A Engine control system
F54 15 A i-ACTIVSENSE
F55 50 A ―
F56 50 A
―
15 A Electric water pump
*
Maintenance and Care
Owner Maintenance
*Some models.6-45
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Fuse block (Left side)
No.FUSE RAT
-
ING PROTECTED COMPONENT
F1 ――
F2 ――
F3 ――
F4 15 A Power door locks (Driver)
F5 15 A Power door locks (Passenger)
F6 ――
F7 ――
F8 ――
F9 30 A Power windows (Driver)
F10 30 A Power windows (Passenger)
F11 30 A
Power seat (Driver)
*
F12 ――
F13 15 A Audio
F14 ――
F15 15 A Liftgate lock
Maintenance and Care
Owner Maintenance
6-46*Some models.
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No.FUSE RAT
-
ING PROTECTED COMPONENT
F16 15 A Illumination
F17 10 A Brake lights
F18 10 A Reverse lights
F19 10 A Rear turn signal lights
F20 10 A Taillights
F21 10 A Taillights
F22 7.5 A
Air bag
*
F23 ――
Maintenance and Care
Owner Maintenance
*Some models.6-47
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Exterior Care
▼Exterior Care
The paintwork on your Mazda
represents the latest technical
developments in composition and
methods of application.

Environmental hazards, however, can
harm the paint's protective properties,
if proper care is not taken.

Here are some examples of possible
damage, with tips on how to prevent
them.
Etching Caused by Acid Rain or
Industrial Fallout
Occurrence
Industrial pollutants and vehicle
emissions drift into the air and mix
with rain or dew to form acids. These
acids can settle on a vehicle's
finish. As
the water evaporates, the acid
becomes concentrated and can
damage the finish.
And the longer the acid remains on the
surface, the greater the chance is for
damage.
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 suspect that acid
rain has settled on your vehicle's finish.
Damage Caused by Bird Dropping,
Insects, or Tree Sap
Occurrence
Bird droppings contain acids. If these
are not removed they can eat away the
clear and color base coat of the
vehicle's paintwork.

When insects stick to the paint surface
and decompose, corrosive compounds
form. These can erode the clear and
color base coat of the vehicle's
paintwork if they are not removed.

Tree sap will harden and adhere
permanently to the paint finish. If you
scratch the sap o ff while it is hard,
some vehicle paint could come o ff
with it.
Prevention
It is necessary to have your Mazda
washed and waxed to preserve its
finish according to the instructions in
this section. This should be done as
soon as possible.

Bird droppings can be removed with a
soft sponge and water. If you are
traveling and these are not available, a
moistened tissue may also take care of
the problem. The cleaned area should
be waxed according to the instructions
in this section.
Insects and tree sap are best removed
with a soft sponge and water or a
commercially available chemical
cleaner.

Another method is to cover the
a ff ected area with dampened
newspaper for 1 to 2 hours. After
removing the newspaper, rinse o ff the
loosened debris with water.
Maintenance and Care
Appearance Care
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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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When the ignition is switched ON
and the wiper lever is in the AUTO
position, do not touch the
windshield or the windshield wipers
Otherwise, the windshield wipers
will operate automatically which
could catch your fingers or damage
the windshield wipers.
When removing ice or snow, or
cleaning the windshield, always
make sure the wiper lever is in the
OFF position.
 Do not spray water in the engine
compartment. Otherwise, it could
result in engine-starting problems or
damage to electrical parts.
 When washing and waxing the
vehicle, be careful not to apply
excessive force to any single area of
the vehicle roof or the antenna.
Otherwise, you could dent the
vehicle or damage the antenna.
 Make sure that the fuel- filler lid is
closed and lock the doors.
Otherwise, the fuel-filler lid may be
forcefully opened by water pressure
causing damage to the vehicle or fuel- filler lid.
To help protect the finish from rust and
deterioration, wash your Mazda
thoroughly and frequently, at least
once a month, with lukewarm or cold
water.

If the vehicle is washed improperly, the
paint surface could be scratched. Here
are some examples of how scratching
could occur.

Scratches occur on the paint surface
when:
The vehicle is washed without first
rinsing o ff dirt and other foreign
matter.
The vehicle is washed with a rough,
dry, or dirty cloth.
The vehicle is washed at a car wash
that uses brushes that are dirty or too sti ff.
Cleansers or wax containing
abrasives are used.
NOTE
Mazda is not responsible for
scratches caused by automatic car
washes or improper washing.
Scratches are more noticeable on
vehicles with darker paint finishes.
To minimize scratches on the vehicle's
paint finish:
Rinse o ff any dirt or other foreign
matter using lukewarm or cold water
before washing.
Use plenty of lukewarm or cold
water and a soft cloth when washing
the vehicle. Do not use a nylon cloth.
Rub gently when washing or drying
the vehicle.
Take your vehicle only to a car wash
that keeps its brushes well
maintained.
Do not use abrasive cleansers or wax
that contain abrasives.
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
damage the protective coating; also,
cleaners and detergents may discolor
or deteriorate the paint.
Maintenance and Care
Appearance Care
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