2021 MAZDA MODEL 3 HATCHBACK engine

Rear side-marker lightsBrake lightsTa i l l i g h t sReverse lightsLicense plate lights
The LED bulb cannot be replaced as a
single unit because it is an integrated
unit.
The LED bulb has to be replaced with
the unit. We recommend an
Authorized Mazda Dealer when the
replacement is necessary.
Bulb type
Parking lights/Front side-marker
lights (Type B)
1. Make sure the ignition is switched off, and the headlight switch is o ff.
2. If you are changing the left bulb, start the engine, turn the steering
wheel all the way to the right, and
turn o ff engine. If you are changing
the right bulb, turn the steering
wheel to the left.
3. Pull the center of each plastic retainer and remove the retainers.
1. Removal
2. Installation

4. Pull the center of each plasticretainer and remove the retainers.
1. Removal
2. Installation

5. Turn the screw counterclockwise and remove it, and then partially
peel back the mudguard.
6. Turn the socket and bulb assemblycounterclockwise and remove it.
7. Disconnect the bulb from thesocket.
8. Install the new bulb in the reverse order of the removal procedure.
Maintenance and Care
Owner Maintenance
6-39
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3. Pull the fuse straight out with thefuse puller provided on the fuse
block located in the engine
compartment.
4. Inspect the fuse and replace it if it is
blown.
1. Normal
2. Blown

5. Insert a new fuse of the same
amperage rating , and make sure it
fits tightly. If it does not
fit tightly,
have an expert install it. Consult an
Authorized Mazda Dealer.
If you have no spare fuses, borrow
one of the same rating from a
circuit not essential to vehicle
operation, such as the audio or
accessory socket circuit.
CAUTION
Always replace a fuse with a
genuine Mazda fuse or equivalent
of the same rating. Otherwise, you
may damage the electric system.
6. Reinstall the cover and make sure that it is securely installed.
Replacing the fuses under the hood
If the headlights or other electrical
components do not work and the fuses
in the cabin are normal, inspect the
fuse block under the hood.
If a fuse is blown, it must be replaced.
Follow these steps:

1. Make sure the ignition is switched
off, and other switches are
off.
2. Remove the fuse block cover.
3. If any fuse but the MAIN fuse is blown, replace it with a new one of
the same amperage rating .
1. Normal
2. Blown

Maintenance and Care
Owner Maintenance
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▼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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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
6-50
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▼Aluminum Wheel Maintenance*
A protective coating is provided over
the aluminum wheels. Special care is
needed to protect this coating.
CAUTION
Do not use any detergent other than
mild detergent. Before using any
detergent, verify the ingredients.
Otherwise, the product could discolor
or stain the aluminum wheels.
NOTE
Do not use a wire brush or any
abrasive cleaner, polishing
compound, or solvent on aluminum
wheels. They may damage the
coating.
Always use a sponge or soft cloth to
clean the wheels.
Rinse the wheels thoroughly with
lukewarm or cold water. Also, be
sure to clean the wheels after driving
on dusty or salted roads to help
prevent corrosion.
Avoid washing your vehicle in an
automatic car wash that uses
high-speed or hard brushes.
▼Plastic Part Maintenance
When cleaning the plastic lenses of
the lights, do not use gasoline,
kerosene, recti
fied spirit, paint,
thinner, highly acidic detergents, or
strongly alkaline detergents.
Otherwise, these chemical agents
can discolor or damage the surfaces
resulting in a signi ficant loss in
functionality. If plastic parts become
inadvertently exposed to any of these
chemical agents, flush with water
immediately.
If plastic parts such as the bumpers
become inadvertently exposed to
chemical agents or fluids such as
gasoline, oil, engine coolant, or
battery fluid, it could cause
discoloration, staining , or paint
peeling. Wipe o ff any such chemical
agents or fluids using a soft cloth
immediately.
High water temperature and high
water pressure car washers are
available depending on the type of
high pressure car washer device. If
the car washer nozzle is put too
close to the vehicle or aimed at one
area for an extended period of time,
it could deform plastic parts or
damage the paint.
Do not use wax containing
compounds (polish). Otherwise, it
could result in paint damage.
In addition, do not use an electrical
or air tool to apply wax. Otherwise,
the frictional heat generated could
result in deformation of plastic parts
or paint damage.
Maintenance and Care
Appearance Care
*Some models.6-53
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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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