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

Keyless Entry System
▼Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors,
liftgate, and fuel-filler flap, and opens/
closes the liftgate.
The system can start the engine
without having to take the key out of
your purse or pocket.
Operating the theft-deterrent system is
also possible on theft-deterrent
system-equipped vehicles.

System malfunctions or warnings are
indicated by the following warning
lights or beeps.
Check the displayed message for more
information and, if necessary, have the
vehicle inspected at an expert repairer
(we recommend an Authorised Mazda
Repairer), according to the indication.
xKEY Warning Indication/Warning
Light (Red)
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-56.
xIgnition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page
7-67.
xKey Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-68.
If you have a problem with the key,
consult an expert repairer (we
recommend an Authorised Mazda
Repairer).

If your key is lost or stolen, consult an
expert repairer (we recommend an
Authorised Mazda Repairer) as soon as
possible for a replacement and to
make the lost or stolen key inoperative.
CAUTION
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user's
authority to operate the equipment.
NOTE
xThe keyless entry system operation
may vary due to local conditions.
xThe keyless entry system is fully
operational when the ignition is
switched off. The system does not
operate if the ignition is switched to
any position other than off.
xIf the key does not operate when
pressing a button or the operational
range becomes too small, the battery
may be weak. To install a new
battery, refer to Key Battery
Replacement (page 6-39).
xBattery life is about 1 year. Replace
the battery with a new one if the
messages are displayed in the
instrument cluster. Replacing the
battery about once a year is
recommended because the KEY
warning indication may not display
depending on the rate of battery
depletion.
xAdditional keys can be obtained at
an Authorised Mazda Repairer. Up
to 6 keys can be used with the
keyless functions per vehicle. Bring
all keys to an Authorised Mazda
Repairer when additional keys are
required.
Before Driving
Keys
3-4

Operational Range
▼Operational Range
The system operates only when the
driver is in the vehicle or within
operational range while the key is
being carried.
NOTE
When the battery power is low, or in
places where there are high-intensity
radio waves or noise, the operational
range may become narrower or the
system may not operate. For
determining battery replacement,
Refer to Keyless Entry System on page
3-4.
▼Locking/Unlocking Using Touch
Sensor
1. Exterior aerial
2. 80 cm (31 in)
3. Operational range

NOTE
xThe system may not operate if you
are too close to the windows or door
handles.
xIf the key is left in the following areas
and you leave the vehicle, the doors
may be locked depending on the
radio wave conditions even if the key
is left in the vehicle.
xAround the instrument panel
xIn the storage compartments such
as the glove compartment or the
centre console
xNext to a communication device
such as a mobile phone
▼Locking Using Door-Lock Switch/
Unlocking Using Electric Liftgate
Opener
1. Exterior aerial
2. 80 cm (31 in)
3. Operational range
Before Driving
Advanced Keyless Entry System
3-10

NOTE
xThe cooling fan in the engine
compartment could turn on for a few
minutes after the ignition is switched
from ON to OFF, whether or not the
A/C is on or
off, to cool the engine
compartment quickly.
xIf the system detects that the
remaining battery power of the key is
low when the ignition is switched
from ON to ACC or OFF, the
following is indicated.
Replace with a new battery before
the key becomes unusable.
Refer to Key Battery Replacement on
page 6-39.
A message is indicated in the display
of the instrument cluster.
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-56.
x(Automatic transmission)
If the engine is turned off while the
selector lever is in a position other
than P, the ignition switches to ACC.
▼Emergency Engine Stop
Continuously pressing the push button
start or quickly pressing it any number
of times while the engine is running or
the vehicle is being driven will turn the
engine
off immediately. The ignition
switches to ACC.
i-stop*
▼i-stop
The i-stop function automatically stops
the engine when the vehicle is stopped
at a
traffic light or stuck in
traffic, and
then restarts the engine automatically
to resume driving. The system provides
improved fuel economy, reduced
exhaust gas emissions, and eliminates
idling noise while the engine is
stopped.
Engine idle stopping and restarting
NOTE
xAfter parking the vehicle, make sure
that the ignition is switched OFF.
There is the possibility of the vehicle
moving if the vehicle is parked while
i-stop is operating.
xThe i-stop indicator light (green)
turns on under the following
conditions:
xWhen engine idling is stopped.
xThe i-stop indicator light (green)
turns off when the engine is
restarted.
When Driving
Start/Stop Engine
*Some models.4-11

position if force is applied to the
steering wheel. Release the force
applied to the steering wheel to
stop engine idling).
xThe vehicle is stopped by
depressing the brake pedal.
xThe vehicle is not driven on a
slope.
xThe vehicle is not stopped
suddenly.
NOTE
Under the following conditions, a
period of time is required to stop
engine idling
xThe battery power is depleted for
some reasons such as the vehicle has
not been driven for a long period.
xThe ambient temperature is high or
low.
xAfter the battery terminals are
disconnected for some reasons such
as for battery replacement.
x(SKYACTIV-D 1.8)
After PM removal is performed by
the diesel particulate filter.
Engine does not restart
If the following operations are
performed while the idling is stopped,
the engine will not restart for safety
reasons. In such cases, start the engine
using the normal method.
x(European model)
xThe bonnet is opened.xThe driver's seat belt is unfastened
and the driver's door is opened.
x(With M Hybrid)
xAutomatic transmission
The driver's seat belt is unfastened
and the driver's door is opened.
xManual transmission
The driver's door is opened.
Engine-stop period is short or time
until next engine idle stop is long
xThe ambient temperature is high or
low.
xThe battery power is depleted.xPower consumption by the vehicle's
electrical parts is high.
Engine restarts automatically while
engine idling is stopped
Under the following conditions, the
engine restarts automatically.
xThe i-stop OFF switch is pressed until
the beep sounds.
xThe air conditioner is operated with
the airflow mode in the
position.xThe temperature setting dial of the
air conditioner is in the maximum
heating or maximum cooling (A/C
ON) position.
x(Automatic air-conditioning)
The cabin temperature is largely
different from the set temperature of
the air conditioner.
xThe brakes are released slightly on a
slope and the vehicle begins to
move.
xTwo minutes have elapsed since the
idling was stopped.
xThe battery power is depleted.x(Automatic transmission)
Engine idling is stopped while the
vehicle is stopped
xThe accelerator pedal is depressed
with the selector lever in the D or
M (not in second gear fixed mode)
position.
xThe selector lever is shifted to the R
position.
xThe selector lever is shifted from N
or P position to D or M (not in
second gear fixed mode) position.
When Driving
Start/Stop Engine
4-15

Cylinder Deactivation*
▼Cylinder Deactivation
The cylinder deactivation is a function
designed to reduce fuel consumption
and improve fuel economy by
deactivating 2 out of the 4 cylinders
while driving. The function constantly
determines which is better for driving;
4 cylinders or 2 cylinders, regardless of
the driver's operations, and it performs
the switching automatically.
When the cylinder deactivation
function does not operate
The cylinder deactivation function
does not operate under the following
conditions.
xThe selector lever is in the P, N, or R
position (automatic transmission), or
1st gear (manual transmission).
xThe engine oil temperature or engine
coolant temperature is low.
xAfter disconnecting the battery
terminals for some reason, such as
for battery replacement.
When Driving
Start/Stop Engine
4-20*Some models.

¾If cracks or damage caused by flying
gravel or debris is visible around a
rear radar and rear camera, stop
using the SBS-RC system
immediately and have your vehicle
inspected by an expert repairer (we
recommend an Authorised Mazda
Repairer). If the vehicle continues to
be driven with cracks or scratch
marks left around an ultrasonic
sensor, the system may operate
unnecessarily and cause an
unexpected accident.
Refer to Stopping the Smart Brake
Support [Rear Crossing] (SBS-RC)
System Operation on page 4-184.
¾Consult an expert repairer (we
recommend an Authorised Mazda
Repairer) for rear bumper
replacement.
Do not modify the suspension:
If the vehicle height or inclination is
changed, the
SBS-RC system may not
operate correctly because it cannot
detect obstructions correctly.
Do not apply a strong force to a rear
radar and rear camera:
When washing the vehicle, do not
spray highly pressurised water against a
rear radar and rear camera, or rub it
strongly. In addition, do not hit the rear
bumper forcefully when loading and
unloading cargo. Otherwise, the
sensors may not detect obstructions
correctly which could cause the
SBS-RC system to not operate
normally, or it could operate
unnecessarily.
NOTE
xThe SBS-RC system will operate
under the following conditions.
xThe engine is running.
xThe shift lever (manual
transmission vehicle) or the
selector lever (automatic
transmission vehicle) is in the R
(reverse) position.
xi-ACTIVSENSE warning indication/
warning light is not displayed in the
multi-information display.
xThe vehicle speed is under about
10 km/h (6 mph).
xThe vehicle speed of an
approaching vehicle is about 3
km/h (2 mph) or faster.
xThe SBS-R is not turned off.xThe DSC is not malfunctioning.xIn the following cases, the
i-ACTIVSENSE warning indication/
warning light turns on and operation
of the system is stopped. If the
i-ACTIVSENSE warning indication/
warning light remains illuminated,
have the vehicle inspected at an
expert repairer (we recommend an
Authorised Mazda Repairer) as soon
as possible.
xSome problem with the system
including the SBS-RC system.
xA large deviation in the installation
position of a rear side radar sensor
on the vehicle has occurred.
xThere is a large accumulation of
snow or ice on the rear bumper
near a rear side radar sensor.
xDriving on snow-covered roads for
long periods.
xThe temperature near the radar
sensors becomes extremely hot
due to driving for long periods on
slopes during the summer.
xThe battery voltage has decreased.xUnder the following conditions, the
rear side radar sensor cannot detect
target objects or it may be difficult to
detect them.
When Driving
i-ACTIVSENSE
4-182

¾Consult an expert repairer (we
recommend an Authorised Mazda
Repairer) for repair, painting , or
replacement of the front/rear
camera, front bumper, liftgate and
door mirrors.
¾Heed the following cautions to
assure that the 360°View Monitor
operates normally.
¾Do not modify the vehicle
suspensions or lower/raise the
vehicle body, or both.
¾Always use tyres of the
specified
type and size for the front and rear
wheels. Consult an expert repairer
(we recommend an Authorised
Mazda Repairer) for tyre
replacement.
¾When the display is cold, images
may leave trails or the screen might
be darker than usual, making it
difficult to check the vehicle
surroundings. Always
confirm the
safety at the front and around the
vehicle visually when driving.
¾The method for parking/stopping
the vehicle using the 360°View
Monitor
differs depending on the
road circumstances/conditions and
the vehicle conditions. When and
how much you turn the steering
wheel will differ depending on the
situation, , therefore always check
the vehicle surroundings directly with
your eyes while using the system.
Also, before using the system, always
make sure that the vehicle can be
parked/stopped in the parking/
stopping space.NOTE
xIf there are water droplets, snow, or
mud on the camera lens, wipe it off
using a soft cloth. If the camera lens
is especially dirty, wash it off with
mild detergent.
xIf the camera lens is touched or there
is any dirt on it, it could affect the
screen image. Wipe the lens using a
soft cloth.
xIf the area where the camera is
installed, such as the front bumper,
liftgate or door mirrors, has been
damaged in a vehicle accident, the
camera (position, installation angle)
may have shifted. Always consult an
expert repairer (we recommend an
Authorised Mazda Repairer) to have
the vehicle inspected.
xIf the camera is subjected to
excessive changes in temperature
such as by pouring hot water on the
camera during cold weather, the
360°View Monitor may not operate
normally.
xIf the battery voltage is low, the
screen might be temporarily difficult
to view, however, this does not
indicate a problem.
xThe 360°View Monitor has
limitations. Objects under the
bumper or near both ends of the
bumper cannot be displayed.
xObstructions above the upper image
range of the camera are not
displayed.
xUnder the following conditions, the
screen might be difficult to view,
however this does not indicate a
problem.
xThe temperature near the lens is
high/low.
xRainy conditions, water droplets
on the camera, or high humidity.
xMud or foreign matter near the
camera.
When Driving
i-ACTIVSENSE
4-187

Please note that the TPMS is not a
substitute for proper tyre
maintenance, and it is the driver's
responsibility to maintain correct tyre
pressure, even if under-inflation has
not reached the level to trigger
illumination of the TPMS low tyre
pressure telltale.
Your vehicle has also been equipped
with a TPMS malfunction indicator to
indicate when the system is not
operating properly.
The TPMS malfunction indicator is
combined with the low tyre pressure
telltale. When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as long
as the malfunction exists. When the
malfunction indicator is illuminated,
the system may not be able to detect
or signal low tyre pressure as
intended. TPMS malfunctions may
occur for a variety of reasons,
including the installation of
replacement or alternate tyres or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tyres or wheels on your vehicle to
ensure that the replacement or
alternate tyres and wheels allow the
TPMS to continue to function
properly.
¾To avoid false readings, the system
samples for a little while before
indicating a problem. As a result it
will not instantaneously register a
rapid tyre deflation or blow out.▼If there is a problem with the Tyre
Pressure Monitoring System
(TPMS)
If the TPMS warning light flashes, there
may be a problem with the system.
Consult an expert repairer (we
recommend an Authorised Mazda
Repairer) to have the system inspected.
Refer to Tyre Pressure Monitoring
System (TPMS) Warning Indication/
Warning Light (Flashing) on page
7-57.
In the following cases, the system
cannot recognise the tyre pressures
correctly and the TPMS warning light
may flash.
xThere is equipment or a device
nearby emitting radio signals the
same as a tyre pressure sensor.
xA metallic object such as a
non-genuine electronic device is
installed near the centre of the
instrument panel (obstructs the radio
signals from the tyre pressure sensors
to the receiver).
xA device such as one of the following
is used in the cabin.
xElectronic devices such as a
computer.
xConverter devices such as a
DC-AC converter.
xThere is a large accumulation of
snow or ice around the vehicle tyres.
xThe battery in a tyre pressure sensor
is dead.
xA wheel not equipped with a tyre
pressure sensor is used.
xTyres employing steel in the sidewall
of the tyre are installed.
xTyre chains are used.
▼When a tyre pressure decreases
If the TPMS warning light turns on, a
tyre pressure may be low. Inspect the
When Driving
Tyre Pressure Monitoring System (TPMS)
4-233

6Maintenance and Care
How to keep your Mazda in top condition.
Essential Information................. 6-2
Introduction.......................... 6-2
Scheduled Maintenance............ 6-3
Scheduled Maintenance......... 6-3
Owner Maintenance............... 6-16
Owner Maintenance
Precautions......................... 6-16
Bonnet................................ 6-17
Engine Compartment
Overview............................ 6-19
Engine Oil........................... 6-24
Engine Coolant.................... 6-28
Brake/Clutch Fluid............... 6-30
Window and Headlight Washer
Fluid................................... 6-31
Body Lubrication.................. 6-31
Wiper Blades....................... 6-32
Battery................................ 6-36
Key Battery Replacement...... 6-39
Tyres................................... 6-41
Light Bulbs...........................6-44
Fuses.................................. 6-46
Appearance Care.................... 6-54
Exterior Care....................... 6-54
Interior Care........................ 6-59
6-1

▼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