Fuel MAZDA MODEL CX-30 2021 Service Manual

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
qualified service technician as soon as
possible.
When Refueling
Brake and clutch fluid level (page
6-21)
Engine coolant level (page 6-19)Engine oil level (page 6-18)Washer fluid level (page 6-21)
At Least Monthly
Tire inflation pressures (page 6-31)
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 6-19)Engine oil (page 6-18)

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 qualified service technician
with special tools.

Improper owner maintenance during
the warranty period may affect
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
fluids. 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 sufficient knowledge and
experience or the proper tools and
equipment to do the work. Have
maintenance work done by a
qualified 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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Engine Oil
▼Engine Oil
NOTE
Changing the engine oil should be
performed by an Authorized Mazda
Dealer.
Refer to Introduction on page 6-2 for
owner's responsibility in protecting
your investment.
▼Recommended Oil
U.S.A., Canada
SKYACTIV-G 2.0 and SKYACTIV-G
2.5
Use ILSAC GF-V or higher/ SAE
0W-20
engine oil.
Mazda Genuine Oil is used in your
Mazda vehicle. Mazda Genuine
0W-20 Oil is required to achieve
optimum fuel economy.

For maintenance service, Mazda
recommends Mazda Genuine Parts
and Oil.

Only use SAE 0W-20 oil “Certified For
Gasoline Engines” by the American
Petroleum Institute (API).
Oil with this trademark symbol
conforms to the current engine and
emission system protection standards
and fuel economy requirements of the
International Lubricant Standardization
and Approval Committee (ILSAC),
comprised of U.S. and Japanese
automobile manufacturers.

SKYACTIV-G 2.5T
Use SAE 5W-30 engine oil.
Mazda Genuine Oil is used in your
Mazda vehicle. Mazda Genuine
5W-30 Oil is required to achieve
optimum fuel economy.

For maintenance service, Mazda
recommends Mazda Genuine Parts
and Oil.

Maintenance and Care
Owner Maintenance
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Only use SAE 5W-30 oil “Certified For
Gasoline Engines” by the American
Petroleum Institute (API).
Oil with this trademark symbol
conforms to the current engine and
emission system protection standards
and fuel economy requirements of the
International Lubricant Standardization
and Approval Committee (ILSAC),
comprised of U.S. and Japanese
automobile manufacturers.

Except U.S.A., Canada
Use SAE 5W-30 engine oil.
Oil container labels provide important
information.
A chief contribution this type of oil
makes to fuel economy is reducing the
amount of fuel necessary to overcome
engine friction.

For maintenance service, Mazda
recommends Mazda Genuine Parts.

(Mexico)
SKYACTIV-G 2.0 and
SKYACTIV-G
2.5
Use API SM or higher, or ILSAC GF-IV
or higher/SAE 5W-30 engine oil. If SAE
5W-30 engine oil is not available, use
SAE 5W-20 engine oil.

The quality designation SM, or ILSAC
must be on the label.

SKYACTIV-G 2.5T
Use SAE 5W-30 engine oil. If SAE
5W-30 engine oil is not available, use
SAE 0W-30 or SAE 10W-30 engine oil.

The quality designation SM or SN, or
ILSAC must be on the label.

▼ Inspecting Engine Oil Level
NOTE
If the engine oil level warning
indication/warning light turns on,
add 1 L (0.26 US gal, 0.22 Imp gal)
of engine oil.
1. Be sure the vehicle is on a level surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes for the oil to return to the
oil pan.
Maintenance and Care
Owner Maintenance
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7. Insert a new battery into thetransmitter so that the positive pole
is facing up.
8. Install the cap.
9. Install the upper cover.
10.Insert the tabs of the lower cover into the slots of the transmitter and
install the lower cover.
Tires
▼Tires
For reasons of proper performance,
safety, and better fuel economy, always
maintain recommended tire
inflation
pressures and stay within the
recommended load limits and weight
distribution.
WARNING
Using Different Tire Types:
Driving your vehicle with different
types of tires is dangerous. It could
cause poor handling and poor braking;
leading to loss of control.
Except for the limited use of the
temporary spare tire, use only the
same type tires (radial, bias-belted,
bias-type) on all four wheels.
Using Wrong-Sized Tires:
Using any other tire size than what is
specified for the vehicle (page 9-8)
is dangerous. It could seriously affect
ride, handling , ground clearance, tire
clearance, and speedometer
calibration. This could cause you to
have an accident. Use only tires that
are the correct size specified for the
vehicle.
▼ Tire Inflation Pressure
WARNING
Always inflate the tires to the correct
pressure:
Overinflation or underinflation of tires
is dangerous. Adverse handling or
unexpected tire failure could result in a
serious accident.
Refer to Tires on page 9-8.
Maintenance and Care
Owner Maintenance
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Use only a Mazda-genuine tire valve
cap:
Use of a non-genuine part is
dangerous as the correct tire air
pressure cannot be maintained if the
tire valve becomes damaged. If the
vehicle is driven under this condition,
the tire air pressure will decrease
which could result in a serious
accident. Do not use any part for the
tire valve cap that is not a
Mazda-genuine part.
Inspect all tire pressures monthly
(including the spare) when the tires are
cold. Maintain recommended
pressures for the best ride, handling ,
and minimum tire wear.
Refer to the specification charts (page
9-8).
NOTE
Always check tire pressure when tires
are cold.
Warm tires normally exceed
recommended pressures. Do not
release air from warm tires to adjust
the pressure.
Underinflation can cause reduced
fuel economy, uneven and
accelerated tire wear, and poor
sealing of the tire bead, which will
deform the wheel and cause
separation of tire from rim.
Overinflation can produce a harsh
ride, uneven and accelerated tire
wear, and a greater possibility of
damage from road hazards.
Keep your tire pressure at the correct
levels. If one frequently needs inflating, have it inspected.
▼ Tire Rotation
WARNING
Rotate tires periodically:
Irregular tire wear is dangerous. To
equalize tread wear for maintaining
good performance in handling and
braking , rotate the tires periodically or
sooner if irregular wear develops.
Please refer to Scheduled maintenance
for your tire rotation interval.
During rotation, inspect them for
correct balance.

1. Forward
Do not include (TEMPORARY USE
ONLY) spare tire in rotation.

Also, inspect them for uneven wear
and damage. Abnormal wear is usually
caused by one or a combination of the
following:
Incorrect tire pressureImproper wheel alignmentOut-of-balance wheelSevere braking

After rotation, inflate all tire pressures
to specification on page 9-8 and
inspect the lug nuts for tightness.
Maintenance and Care
Owner Maintenance
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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 15 A Headlights
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
*Some models.6-39
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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 off 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 stiff.
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 off 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.
Maintenance and Care
Appearance Care
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NOTE
A spot remover to remove oil, tar, and
similar materials will usually also take
off the wax. Rewax these areas even if
the rest of the vehicle does not need it.
▼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.
Maintenance and Care
Appearance Care
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Starting a Flooded Engine
▼Starting a Flooded Engine
If the engine fails to start, it may be
flooded
(excessive fuel in the engine).

Follow this procedure:

1. If the engine does not start within 5 seconds on the first try, wait 10
seconds and try again.
2. Make sure the parking brake is on.
3. Depress the accelerator all the way
and hold it there.
4. Depress the clutch pedal (manual
transmission) or the brake pedal
(automatic transmission), then
press the push button start. If the
engine starts, release the
accelerator immediately because
the engine will suddenly rev up.
5. If the engine fails to start, crank it
without depressing the accelerator.

If the engine still does not start using
the previous procedure, have your
vehicle inspected by an Authorized
Mazda Dealer.
Push-Starting
▼ Push-Starting
Do not push-start your Mazda.
WARNING
Never tow a vehicle to start it:
Towing a vehicle to start it is
dangerous. The vehicle being towed
could surge forward when its engine
starts, causing the 2 vehicles to collide.
The occupants could be injured.
CAUTION
Do not push-start a vehicle that has a
manual transmission. It can damage
the emission control system.
NOTE
You cannot start a vehicle with an
automatic transmissi
on by pushing it.
If Trouble Arises
Emergency Starting
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▼Brake Override Warning Indication
This message is displayed when the
accelerator pedal and brake pedal are
depressed at the
same time while
driving.
Release the accelerator pedal and
depress the brake pedal.
▼ Check Engine Indication/Light
If this light illuminates while driving,
the vehicle may have a problem. It is
important to note the driving
conditions when the light illuminated
and consult an Authorized Mazda
Dealer.
The check engine light may illuminate
in the following cases:
The engine's electrical system has a
problem.
The emission control system has a
problem.
The fuel-filler cap is missing or not
tightened securely.
The fuel tank level being very low or
approaching empty.
If the check engine light remains on, or
it flashes continuously , do not drive at
high speeds and consult an Authorized
Mazda Dealer as soon as possible.
WARNING
If the check engine light turns on, do
not disconnect the battery cables.
If the battery cables are disconnected
and then reconnected, the engine
could be damaged and catch on fire.
▼Automatic Transmission Warning
Indication/Warning Light*
The indication/light illuminates when
the transmission has a problem.
CAUTION
If the automatic tr
ansmission warning
indication/light illuminates, the
transmission has an electrical problem.
Continuing to drive your Mazda in this
condition could cause damage to your
transmission. Consult an Authorized
Mazda Dealer as soon as possible.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-26*Some models.
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