2019 MAZDA MODEL CX-30 Owners Manual (in English)

Always keep batteries out of
the reach of children:
Allowing children to play near batteries
is dangerous. Battery fluid could cause
serious injuries if it gets in the eyes or
on the skin.
Keep flames and sparks away
from open battery cells and do not
allow metal tools to contact the
positive (+) or negative (-) terminal of
the battery when working near a
battery. Do not allow the positive (+)
terminal to contact the vehicle body:
Flames and sparks near open battery
cells are dangerous. Hydrogen gas,
produced during normal battery
operation, could ignite and cause the
battery to explode. An exploding
battery can cause serious burns and
injuries. Keep all flames including
cigarettes and sparks away from open
battery cells.
Keep all flames and sparks
away from open battery cells because
hydrogen gas is produced from open
battery cells while charging the
battery or adding battery
fluid:
Flames and sparks near open battery
cells are dangerous. Hydrogen gas,
produced during normal battery
operation, could ignite and cause the
battery to explode. An exploding
battery can cause serious burns and
injuries. Keep all
flames including
cigarettes and sparks away from open
battery cells.
NOTE
Before performing battery
maintenance, remove the battery
cover.

▼Battery Maintenance
To get the best service from a battery:
xKeep it securely mounted.xKeep the top clean and dry.xKeep terminals and connections
clean, tight, and coated with
petroleum jelly or terminal grease.
xRinse off spilled electrolyte
immediately with a solution of water
and baking soda.
xIf the vehicle will not be used for an
extended time, disconnect the
battery leads and charge the battery
every 6 weeks.
Maintenance and Care
Owner Maintenance
6-37

▼Inspecting Electrolyte Level
A low level of electrolyte fluid will
cause the battery to discharge quickly.

1. Upper level
2. Lower level
Inspect the electrolyte level at least
once a week. If it is low, remove the
caps and add enough distilled water to
bring the level between the upper and
lower level (illustration).

Do not overfill.
Examine the specific gravity of the
electrolyte with a hydrometer,
especially during cold weather. If it is
low, recharge the battery.
▼Battery Recharging
NOTE
xBefore performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
xTo disconnect the battery, remove
the negative lead first. Install it last
when connecting the battery.
xBe sure to remove the caps before
recharging the battery.
xDo not quick-charge the battery.
xIf the battery quickly discharges
because, for example, the lights
were left on too long with the engine
off, slow-charge it as required by
battery size and charger capacity.
xIf the battery gradually discharges
because of high electric load while
the vehicle is being used, recharge it
as required by battery size and
charger capacity.
▼Battery Replacement
Contact an expert repairer (we
recommend an Authorised Mazda
Repairer) for a battery replacement
purchase.
Maintenance and Care
Owner Maintenance
6-38

Key Battery Replacement
▼Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not
flash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION
¾Make sure the battery is installed
correctly. Battery leakage could occur
if it is not installed correctly.
¾When replacing the battery, be
careful not to touch any of the
internal circuitry and electrical
terminals, bend the electrical
terminals, or get dirt in the
transmitter as the transmitter could
be damaged.
¾There is the danger of explosion if
the battery is not correctly replaced.
¾Dispose of used batteries according
to the following instructions.
¾Insulate the plus and minus
terminals of the battery using
cellophane or equivalent tape.
¾Never disassemble.
¾Never throw the battery into fire or
water.
¾Never deform or crush.
¾Replace only with the same type
battery (CR2032 or equivalent).
The following conditions indicate that
the battery power is low:
xA message, “Low Key Fob Battery.
Replace Battery” is displayed on the
multi-information display when the
ignition is switched OFF.
xThe system does not operate and the
operation indicator light on the
transmitter does not flash when the
buttons are pressed.
xThe system's operational range is
reduced.
Incorrect battery replacement
operation may damage the key.
Replacing the battery at an expert
repairer (we recommend an
Authorised Mazda Repairer) is
recommended. If replacing the battery
by yourself, follow the instruction.
Replacing the key battery
1. Remove the lower cover while
pressing the knob in the direction
of the arrow.
2. Press in the tab to unlock the upper
cover.
Maintenance and Care
Owner Maintenance
6-39

3. Insert a tape-wrapped flathead
screwdriver into the gap and slide it
in the direction of the arrow.
4. Twist the
flathead screwdriver in the
direction of the arrow and remove
the upper cover.
5. Remove the cap using the
tape-wrapped
flathead screwdriver.
6. Remove the battery using
tape-wrapped flathead screwdriver.
7. Insert a new battery into the
transmitter 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.
Maintenance and Care
Owner Maintenance
6-40

Ty re s
▼Ty re s
For reasons of proper performance,
safety, and better fuel economy, always
maintain recommended tyre
inflation
pressures and stay within the
recommended load limits and weight
distribution.
WARNING
Using
Different Ty re Ty p e s :
Driving your vehicle with different
types of tyres is dangerous. It could
cause poor handling and poor braking;
leading to loss of control.
Except for the limited use of the
temporary spare tyre, use only the
same type tyres (radial, bias-belted,
bias-type) on all four wheels.
Using Wrong-Sized Tyres:
Using any other tyre size than what is
specified for the vehicle (page 9-10)
is dangerous. It could seriously affect
ride, handling, ground clearance, tyre
clearance, and speedometer
calibration. This could cause you to
have an accident. Use only tyres that
are the correct size specified for the
vehicle.
▼Tyre Inflation Pressure
WARNING
Always inflate the tyres to the correct
pressure:
Overinflation or underinflation of tyres
is dangerous. Adverse handling or
unexpected tyre failure could result in
a serious accident.
Refer to Tyres on page 9-10.
Use only a Mazda-genuine tyre valve
cap:
Use of a non-genuine part is
dangerous as the correct tyre air
pressure cannot be maintained if the
tyre valve becomes damaged. If the
vehicle is driven under this condition,
the tyre air pressure will decrease
which could result in a serious
accident. Do not use any part for the
tyre valve cap that is not a
Mazda-genuine part.
Inspect all tyre pressures monthly when
the tyres are cold. Maintain
recommended pressures for the best
ride, handling, and minimum tyre
wear.
Refer to the specification charts (page
9-10).
NOTE
xAlways check tyre pressure when
tyres are cold.
xWarm tyres normally exceed
recommended pressures. Do not
release air from warm tyres to adjust
the pressure.
xUnderinflation can cause reduced
fuel economy, uneven and
accelerated tyre wear, and poor
sealing of the tyre bead, which will
deform the wheel and cause
separation of tyre from rim.
xOverinflation can produce a harsh
ride, uneven and accelerated tyre
wear, and a greater possibility of
damage from road hazards.
Keep your tyre pressure at the correct
levels. If one frequently needs
inflating, have it inspected.
Maintenance and Care
Owner Maintenance
6-41

▼Ty re Ro ta t i o n
WARNING
Rotate tyres periodically:
Irregular tyre wear is dangerous. To
equalize tread wear for maintaining
good performance in handling and
braking, rotate the tyres periodically or
sooner if irregular wear develops.
Please refer to Scheduled maintenance
for your tyre rotation interval.
During rotation, inspect them for
correct balance.
NOTE
Because your vehicle is not equipped
with a spare tyre, you cannot do a tyre
rotation safely with the jack that comes
with your vehicle. Have an expert
repairer (we recommend an
Authorised Mazda Repairer) perform
tyre rotation.

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

Also, inspect them for uneven wear
and damage. Abnormal wear is usually
caused by one or a combination of the
following:

xIncorrect tyre pressurexImproper wheel alignment
xOut-of-balance wheelxSevere braking

After rotation, inflate all tyre pressures
to specification (page 9-10) and
inspect the wheel nuts for tightness.
CAUTION
Rotate unidirectional tyres and radial
tyres that have an asymmetrical tread
pattern or studs only from front to rear,
not from side to side. Tyre
performance will be reduced if rotated
from side to side.
▼Replacing a Tyre
WARNING
Always use tyres that are in good
condition:
Driving with worn tyres is dangerous.
Reduced braking , steering , and
traction could result in an accident.
Replace all four tyres at the same
time:
Replacing just one tyre is dangerous. It
could cause poor handling and poor
braking resulting in loss of vehicle
control. Mazda strongly recommends
that you replace all four tyres at the
same time.
If a tyre wears evenly, a wear indicator
will appear as a solid band across the
tread.
Maintenance and Care
Owner Maintenance
6-42

Replace the tyre when this happens.
1. New tread
2. Worn tread
3. Tread wear indicator
You should replace the tyre before the
band crosses the entire tread.
▼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 affected, leading to loss of control
and an accident.
CAUTION
A wrong-sized wheel may adversely
affect:
¾Ty re
fit
¾Wheel and bearing life
¾Ground clearance
¾Snow-chain clearance
¾Speedometer calibration
¾Headlight aim
¾Bumper height
¾Tyre Pressure Monitoring System
*
NOTE
xWhen replacing a wheel, make sure
the new one is the same as the
original factory wheel in diameter,
rim width, and offset (inset/outset).
xFor details, contact an expert repairer
(we recommend an Authorised
Mazda Repairer).

Proper tyre balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tyres can cause
vibration and uneven wear, such as
cupping and
flat spots.
Maintenance and Care
Owner Maintenance
*Some models.6-43

Light Bulbs
▼Light Bulbs
Front
Ty p e A
1. Vanity mirror lights*
2. Front overhead lights/Front map
lights
3. Side direction indicator lights
4. Front direction indicator lights/
Position lights
5. Running lights/Headlights (Low
beam)
6. Headlights (High/Low beam)
7. Running lights
8. Headlights (High beam)
*
9. Headlights (Wide-range low beam)*
Ty p e B
1. Vanity mirror lights*
2. Front overhead lights/Front map
lights
3. Side direction indicator lights
4. Running lights
*
5. Front direction indicator lights/
Position lights
6. Headlights (High/Low beam)
Rear
1. Luggage compartment light
2. High-mount brake light
3. Rear overhead light
4. Tail lights
*
5. Rear direction indicator lights
6. Brake lights/Tail lights
7. Tail lights (Liftgate side)
*
8. Reverse lights
9. Rear fog light*
10.Number plate lights
CAUTION
When removing the lens or lamp unit
using a flathead screwdriver, make sure
that the flathead screwdriver does not
contact the interior terminal. If the
flathead screwdriver contacts the
terminal, a short circuit may occur.
NOTE
xWhen replacing a bulb, contact an
expert repairer (we recommend an
Authorised Mazda Repairer) if
necessary.
xUse the protective cover and carton
for the replacement bulb to dispose
of the old bulb promptly and out of
the reach of children.
xFor details regarding the installation
positions of the interior lights, refer
to the following:
Maintenance and Care
Owner Maintenance
6-44*Some models.