2019 MAZDA MODEL CX-30 sensor

NOTE
xThe detection ability of the front side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
xThe front bumper near the front
side radar sensor has become
deformed.
xSnow, ice or mud adheres to the
front side radar sensor on the front
bumper.
xUnder bad weather conditions
such as rain, snow and fog.
xUnder the following conditions, the
front side radar sensor cannot detect
target objects or it may be
difficult to
detect them.
xSmall motorcycles, bicycles,
pedestrians, animals, shopping
carts, and stationary objects on a
road or a road side.
xVehicle shapes which do not
reflect radar waves well such as
empty trailers with a low vehicle
height and sports cars.
xVehicles are shipped with the
direction of the front side radar
sensor adjusted for each vehicle to a
loaded vehicle condition so that the
front side radar sensor detect
approaching vehicles correctly. If the
direction of the front side radar
sensor has deviated for some reason,
have the vehicle inspected at an
expert repairer (we recommend an
Authorised Mazda Repairer).
xFor repairs or replacement of the
front side radar sensor, or bumper
repairs, paintwork, and replacement
near the radar sensors, consult an
expert repairer (we recommend an
Authorised Mazda Repairer).
xThe radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.
When Driving
i-ACTIVSENSE
4-223

Rear Side Radar Sensor*
▼Rear Side Radar Sensor
Your vehicle is equipped with rear side
radar sensor. The following systems
also use the rear side radar sensor.
xBlind Spot Monitoring (BSM)xRear Cross Traffic Alert (RCTA)xSmart Brake Support [Rear Crossing]
(SBS-RC)
The rear side radar sensors emit radio
waves and detect the radio waves
reflected off a vehicle approaching
from the rear or an obstruction.
1. Rear side radar sensor

The rear side radar sensors are installed
inside the rear bumper, one on each
side.
Always keep the surface of the rear
bumper near the rear side radar
sensors clean so that they operate
normally. Also, do not apply items such
as stickers.
Refer to Exterior Care on page 6-54.
CAUTION
If the rear bumper receives a severe
impact, the system may no longer
operate normally. Stop the system
immediately and have the vehicle
inspected at an expert repairer (we
recommend an Authorised Mazda
Repairer).
NOTE
xThe detection ability of the rear side
radar sensor has limitations. In the
following cases, the detection ability
may lower and the system may not
operate normally.
xThe rear bumper near the rear side
radar sensor has become
deformed.
xSnow, ice or mud adheres to the
rear side radar sensor on the rear
bumper.
xUnder bad weather conditions
such as rain, snow and fog.
xUnder the following conditions, the
rear side radar sensor cannot detect
target objects or it may be
difficult to
detect them.
xSmall motorcycles, bicycles,
pedestrians, animals, shopping
carts, and stationary objects on a
road or a road side.
xVehicle shapes which do not
reflect radar waves well such as
empty trailers with a low vehicle
height and sports cars.
xVehicles are shipped with the
direction of the rear side radar
sensor adjusted for each vehicle to a
loaded vehicle condition so that the
rear side radar sensor detect
approaching vehicles correctly. If the
direction of the rear side radar
sensor has deviated for some reason,
have the vehicle inspected at an
expert repairer (we recommend an
Authorised Mazda Repairer).
xFor repairs or replacement of the rear
side radar sensor, or bumper repairs,
paintwork, and replacement near the
radar sensors, consult an expert
repairer (we recommend an
Authorised Mazda Repairer).
When Driving
i-ACTIVSENSE
4-224*Some models.

xThe radar sensors are regulated by
the relevant radio wave laws of the
country in which the vehicle is
driven. If the vehicle is driven
abroad, authorization from the
country in which the vehicle is driven
may be required.Rear/Rear corner/Rear
Side Ultrasonic Sensor
*
▼Rear/Rear corner/Rear Side
Ultrasonic Sensor
The ultrasonic sensors function by
emitting ultrasonic waves which are
reflected
off obstructions at the rear
and the returning ultrasonic waves are
picked up by the ultrasonic sensors.
1. Rear ultrasonic sensor
2. Rear corner ultrasonic sensor
3. Rear side ultrasonic sensor

The ultrasonic sensors are mounted in
the rear bumper.
When Driving
i-ACTIVSENSE
*Some models.4-225

Tyre Pressure Monitoring
System (TPMS)
*
▼Tyre Pressure Monitoring System
(TPMS)
The TPMS monitors the air pressure of
each tyre and if it decreases below the
specified value, the system
notifies the
driver by turning on the TPMS warning
light in the instrument cluster and
indicating a message on the
multi-information display.
For the TPMS, the air pressure data
sent from the tyre pressure sensors
installed on each wheel via radio signal
is received by the receiver unit in the
vehicle to monitor the tyre pressures.
1. Tyre pressure sensors

In addition, the current tyre pressures
can be checked using the centre
display.
Refer to the Vehicle Status Monitor
section in the Mazda Connect
Owner's Manual.
NOTE
xWhen the ambient temperature is
low, the tyre temperatures also
decrease. If the tyre temperatures
decrease, the air pressure in the tyres
will also decrease which could turn
on the TPMS warning light.
xBefore driving, visually inspect the
tyres for abnormalities. Additionally,
inspect the tyre pressures monthly. A
digital type air pressure gauge is
recommended for inspecting the tyre
pressures.
The TPMS is not a substitute for your
own periodic inspection of the tyres.
Always inspect the tyres yourself
periodically.
CAUTION
¾Each tyre, including the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recommended
by the vehicle manufacturer on the
vehicle placard or tyre
inflation
pressure label. (If your vehicle has
tyres of a different size than the size
indicated on the vehicle placard or
tyre inflation pressure label, you
should determine the proper tyre
inflation pressure for those tyres.)
As an added safety feature, your
vehicle has been equipped with a
tyre pressure monitoring system
(TPMS) that illuminates a low tyre
pressure telltale when one or more
of your tyres is
significantly
under-inflated. Accordingly, when
the low tyre pressure telltale
illuminates, you should stop and
check your tyres as soon as possible,
and inflate them to the proper
pressure. Driving on a significantly
under-inflated tyre causes the tyre to
overheat and can lead to tyre failure.
Under-inflation also reduces fuel
efficiency and tyre tread life, and may
affect the vehicle's handling and
stopping ability.
When Driving
Tyre Pressure Monitoring System (TPMS)
4-232*Some models.

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

tyre pressures and adjust them to the
correct inflation pressure.
Refer to Tyre Pressure Monitoring
System (TPMS) Warning Indication/
Warning Light (Turns on) on page
7-60.
▼Tyres and Wheels
CAUTION
When inspecting/adjusting the tyre
pressures, do not apply excessive force
to the air valve of the tyre pressure
sensor. Otherwise, the tyre pressure
sensor could be damaged.
When changing tyres and wheels
When changing the tyres or wheels
(such as installing winter tyres), it will
be necessary to register the ID signal
code of the tyre pressure sensor to the
TPMS.
Have an expert repairer (we
recommend an Authorised Mazda
Repairer) do the registration or register
the ID signal codes of the tyre pressure
sensors using the following procedure.
NOTE
The tyre pressure sensors on each
wheel have a unique ID signal code.
For the TPMS to operate correctly, the
ID signal codes of the tyre pressure
sensors need to be registered to the
system.
1. Wait more than 19 minutes after
changing a tyre or wheel.
2. After more than 19 minutes have
passed, drive the vehicle at a speed
of about 25 km/h (16 mph) or
faster for 3 minutes or longer. While
driving, the ID signal codes of the
tyre pressure sensors are
automatically registered.
NOTE
If you drive the vehicle within 19
minutes of changing a tyre or wheel,
the TPMS warning light will flash
because the ID signal codes for the
tyre pressure sensors were not
registered. In this case, stop the vehicle
and register the ID signal codes of the
tyre pressure sensors following the
procedure.
When replacing tyres and wheels
CAUTION
¾When replacing the tyres and
wheels, consult an expert repairer
(we recommend an Authorised
Mazda Repairer) Otherwise, the tyre
pressure sensors could be damaged
when replacing them.
¾Do not install non-genuine wheels. If
wheels other than genuine ones are
installed, it may not be possible to
install the tyre pressure sensors.
When replacing a tyre or wheel, always
install the tyre pressure sensor. The
following combinations of tyres,
wheels, or tyres and wheels are
possible.
xThe tyre pressure sensor from the old
wheel is removed and it is installed
to the new wheel.
xOnly a tyre is replaced without
replacing the tyre pressure sensor
and wheel.
xA new tyre pressure sensor is
installed to a new wheel.
When Driving
Tyre Pressure Monitoring System (TPMS)
4-234

NOTE
When installing a new tyre pressure
sensor, the ID signal code for the tyre
pressure sensor needs to be registered.
For details on purchasing a tyre
pressure sensor and registering the ID
signal of the tyre pressure sensor,
consult an expert repairer (we
recommend an Authorised Mazda
Repairer).
When Driving
Tyre Pressure Monitoring System (TPMS)
4-235

Parking Sensor System*
▼Parking Sensor System
The parking sensors use ultrasonic sensors which detect obstructions around the
vehicle when the vehicle is driven at low speeds, such as during garage or parallel
parking, and a buzzer sound and detection indicator notify the driver of the
approximate distance from the vehicle to the surrounding obstruction.

1. Front ultrasonic sensor*
2. Front corner ultrasonic sensor*
3. Rear ultrasonic sensor
4. Rear corner ultrasonic sensor
5. Rear side ultrasonic sensor
*
WARNING
Do not rely completely on the parking sensor system and be sure to
confirm the
safety around your vehicle visually when driving:
This system can assist the driver in operating the vehicle in the forward and
backward directions while parking. The detection ranges of the sensors are limited,
therefore, driving the vehicle while relying only on the system may cause an
accident. Always
confirm the safety around your vehicle visually when driving.
CAUTION
¾Do not install any accessories within the detection ranges of the sensors. It may
affect the system operation.
¾Depending on the type of obstruction and the surrounding conditions, the
detection range of a sensor may narrow, or the sensors may not be able to detect
obstructions.
NOTE
xThe system may not operate normally under the following conditions:
xMud, ice, or snow is adhering to the sensor area (Returns to normal operation
when removed).
When Driving
Parking Sensor System
4-252*Some models.