Mazda CX-9 (2019 year). Manual - part 23

Radar Sensors (Rear)

*

Your vehicle is equipped with radar sensors (rear). The following systems also use the radar
sensors (rear).



Blind Spot Monitoring (BSM)



Rear Cross Traffic Alert (RCTA)

The radar sensors (rear) function by detecting the radio waves reflected off a vehicle
approaching from the rear or an obstruction sent from the radar sensor.

Radar sensors (rear)

The radar sensors (rear) are installed inside the rear bumper, one each on the left and right
sides.
Always keep the surface of the rear bumper near the radar sensors (rear) clean so that the
radar sensors (rear) operate normally. Also, do not apply items such as stickers.
Refer to Exterior Care on page 6-57.

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 Authorized Mazda Dealer.

NOTE



The detection ability of the radar sensors (rear) has limitations. In the following cases,
the detection ability may lower and the system may not operate normally.



The rear bumper near the radar sensors (rear) has become deformed.



Snow, ice or mud adheres to the radar sensors (rear) on the rear bumper.



Under bad weather conditions such as rain, snow and fog.



Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be difficult to detect them.



Stationary objects on a road or a road side such as small, two-wheeled vehicles,
bicycles, pedestrians, animals, and shopping carts.

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

Vehicle shapes which do not reflect radar waves well such as empty trailers with a low
vehicle height and sports cars.



Vehicles are shipped with the direction of the radar sensors (rear) adjusted for each
vehicle to a loaded vehicle condition so that the radar sensors (rear) detect approaching
vehicles correctly. If the direction of the radar sensors (rear) has deviated for some
reason, have the vehicle inspected at an Authorized Mazda Dealer.



For repairs or replacement of the radar sensors (rear), or bumper repairs, paintwork, and
replacement near the radar sensors, consult an Authorized Mazda Dealer.



Turn off the system while pulling a trailer or while an accessory such as a bicycle carrier
is installed to the rear of the vehicle. Otherwise, the radio waves emitted by the radar will
be blocked causing the system to not operate normally.



The 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.

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Front Camera/Side Cameras/Rear Camera

*

Your vehicle is equipped with a front camera, side cameras, and a rear camera. The 360°
View Monitor uses each camera.
The front camera, side cameras, and rear camera shoot images of the area surrounding the
vehicle.
Each camera is installed to the following positions.

Rear camera

Side camera

Side camera

Front camera

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Cruise Control

*

With cruise control, you can set and automatically maintain any speed of more than about
25 km/h (16 mph).

WARNING

Do not use the cruise control under the following conditions:
Using the cruise control under the following conditions is dangerous and could result in loss
of vehicle control.

Hilly terrain
Steep inclines
Heavy or unsteady traffic
Slippery or winding roads
Similar restrictions that require inconsistent speed

▼ Cruise Control Switch

ON switch

SET/- switch

OFF/CANCEL switch

RES/+ switch

NOTE
If your Mazda has the following steering switch, your Mazda is equipped with the Mazda
Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) system.

When Driving

Cruise Control

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Refer to Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) on page 4-134.

CANCEL switch

RES switch

OFF switch

switch

switch

MODE switch

SET- switch

SET+ switch

▼ Cruise Main Indication (White)/

Cruise Set Indication (Green)

The indication has 2 colors.

Cruise Main Indication (White)

The indication turns on (white) when the
cruise control system is activated.

Cruise Set Indication (Green)

The indication turns on (green) when a
cruising speed has been set.

▼ Activation/Deactivation

To activate the system, press the ON
switch. The cruise main indication (white)
is displayed.
To deactivate the system, press the
OFF/CAN switch.
The cruise main indication (white) turns
off.

WARNING

Always turn off the cruise control system
when it is not in use:
Leaving the cruise control system in an
activation-ready state while the cruise
control is not in use is dangerous as the
cruise control could unexpectedly activate
if the activation button is accidentally
pressed, and result in loss of vehicle control
and an accident.

NOTE
When the ignition is switched OFF, the
system status before it was turned off is
maintained. For example, if the ignition is
switched OFF with the cruise control
system operable, the system will be
operable when the ignition is switched ON
the next time.

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Cruise Control

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▼ To Set Speed

1. Activate the cruise control system by

pressing the ON switch. The cruise
main indication (white) is displayed.

2. Accelerate to the desired speed, which

must be more than 25 km/h (16 mph).

3. Set the cruise control by pressing the

SET/  switch at the desired speed. The
cruise control is set at the moment the
SET/  switch is pressed. Release the
accelerator pedal simultaneously. The
cruise set indication (green) is
displayed.

NOTE



The cruise control speed setting cannot
be performed under the following
conditions:



The selector lever is in the P or N
position.



The parking brake is applied.



Release the SET/  or RES/  switch at
the desired speed, otherwise the speed
will continue increasing while the RES/

 switch is pressed and held, and

continue decreasing while the SET/
switch is pressed and held (except when
the accelerator pedal is depressed).



On a steep grade, the vehicle may
momentarily slow down while
ascending, or speed up while
descending.



The cruise control will cancel if the
vehicle speed decreases below 21 km/h
(13 mph) when climbing a steep grade.



The cruise control may cancel at about
15 km/h (9 mph) below the preset speed
such as when climbing a long, steep
grade.

The vehicle speed preset using the cruise
control is displayed in the instrument
cluster.

Type B

Type C

Type A

Instrument Cluster

Active Driving Display

*1

*1: Needle indicates set speed. 

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Cruise Control

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▼ To Increase Cruising Speed

Follow either of these procedures.

To increase speed using cruise control
switch

Press the RES/  switch and hold it. Your
vehicle will accelerate. Release the switch
at the desired speed.
 
Press the RES/  switch and release it
immediately to adjust the preset speed.
Multiple operations will increase the
preset speed according to the number of
times it is operated.

Increasing speed with a single RES/
switch operation

Instrument cluster display for vehicle
speed indicated in km/h: 1 km/h (0.6 mph)
Instrument cluster display for vehicle
speed indicated in mph: 1 mph (1.6 km/h)

To increase speed using accelerator
pedal

Depress the accelerator pedal to accelerate
to the desired speed. Press the SET/
switch and release it immediately.

NOTE
Accelerate if you want to speed up
temporarily when the cruise control is on.
Greater speed will not interfere with or
change the set speed. Take your foot off
the accelerator to return to the set speed.

▼ To Decrease Cruising Speed

Press the SET/  switch and hold it. The
vehicle will gradually slow.
Release the switch at the desired speed.
 
Press the SET/  switch and release it
immediately to adjust the preset speed.

Multiple operations will decrease the
preset speed according to the number of
times it is operated.

Decreasing speed with a single SET/
switch operation

Instrument cluster display for vehicle
speed indicated in km/h: 1 km/h (0.6 mph)
Instrument cluster display for vehicle
speed indicated in mph: 1 mph (1.6 km/h)

▼ To Resume Cruising Speed at More

Than 25 km/h (16 mph)

If the cruise control system temporarily
canceled (such as applying the brake
pedal) and the system is still activated, the
most recent set speed will automatically
resume when the RES/  switch is pressed.
If vehicle speed is below 25 km/h (16
mph), increase the vehicle speed up to 25
km/h (16 mph) or more and press the RES/

 switch.

▼ To Temporarily Cancel

To temporarily cancel the system, use one
of these methods:



Slightly depress the brake pedal.



Press the OFF/CAN switch.

If the RES/  switch is pressed when the
vehicle speed is 25 km/h (16 mph) or
higher, the system reverts to the previously
set speed.

NOTE



If any of the following conditions occur,
the cruise control system is temporarily
canceled.



The parking brake is applied.



The selector lever is in the P or N
position.

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

When the cruise control system is
temporarily canceled by even one of the
applicable cancel conditions, the speed
cannot be re-set.



The cruise control cannot be cancelled
while driving in manual mode (selector
lever shifted from D to M position).
Therefore, engine braking will not be
applied even if the transaxle is shifted
down to a lower gear. If deceleration is
required, lower the set speed or depress
the brake pedal.

▼ To Deactivate

When a cruising speed has been set
(cruise set indication (green) turns on)

Long-press the OFF/CAN switch or press
the OFF/CAN switch 2 times.

When a cruising speed has not been set
(cruise main indication (white) turns
on)

Press the OFF/CAN switch.

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Tire Pressure Monitoring System

*

The Tire Pressure Monitoring System (TPMS) monitors the pressure for each tire.
If tire pressure is too low in one or more tires, the system will inform the driver via the
warning light in the instrument cluster and by the warning beep sound.
Refer to Contact Authorized Mazda Dealer and Have Vehicle Inspected on page 7-31.
Refer to Taking Action on page 7-37.
Refer to Tire Inflation Pressure Warning Beep on page 7-49.
 
The tire pressure sensors installed on each wheel send tire pressure data by radio signal to
the receiver unit in the vehicle.

Tire pressure sensors

NOTE
When the ambient temperature is low due to seasonal changes, tire temperatures are also
lower. When the tire temperature decreases, the air pressure decreases as well. The TPMS
warning light may illuminate more frequently. Visually inspect the tires daily before driving,
and check tire pressures monthly with a tire pressure gauge. When checking tire pressures,
use of a digital tire pressure gauge is recommended.

 
TPMS does not alleviate your need to check the pressure and condition of all four tires
regularly.

CAUTION

Each tire, 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 tire inflation pressure label. (If your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire inflation pressure label, you should determine
the proper tire inflation pressure for those tires.)

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Tire Pressure Monitoring System

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As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and inflate them to the proper
pressure. Driving on a significantly under-inflated tire causes the tire to overheat and can
lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may
affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire 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 tire 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 tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons, including the installation of replacement
or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or more tires or wheels on
your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to
continue to function properly.

To avoid false readings, the system samples for a little while before indicating a problem. As

a result it will not instantaneously register a rapid tire deflation or blow out.

▼ System Error Activation

When the warning light flashes, there may
be a system malfunction. Consult an
Authorized Mazda Dealer.
A system error activation may occur in the
following cases:



When there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors.



When a metallic device such as a
non-genuine navigation system is
equipped near the center of the
dashboard, which may block radio
signals from the tire pressure sensor to
the receiver unit.



When using the following devices in the
vehicle that may cause radio
interference with the receiver unit.



A digital device such as a personal
computer.



A current converter device such as a
DC-AC converter.



When excess snow or ice adheres to the
vehicle, especially around the wheels.



When the tire pressure sensor batteries
are exhausted.



When using a wheel with no tire
pressure sensor installed.



When using tires with steel wire
reinforcement in the sidewalls.



When using tire chains.

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▼ Tires and Wheels

CAUTION

When inspecting or adjusting the tire air
pressures, do not apply excessive force to
the stem part of the wheel unit. The stem
part could be damaged.

Changing tires and wheels

The following procedure allows the TPMS
to recognize a tire pressure sensor's unique
ID signal code whenever tires or wheels
are changed, such as changing to and from
winter tires.

NOTE
Each tire pressure sensor has a unique ID
signal code. The signal code must be
registered with the TPMS before it can
work. The easiest way to do it is to have
an Authorized Mazda Dealer change your
tire and complete ID signal code
registration.

When having tires changed at an
Authorized Mazda Dealer

When an Authorized Mazda Dealer
changes your vehicle's tires, they will
complete the tire pressure sensor ID signal
code registration.
 

When changing tires yourself

If you or someone else changes tires, you
or someone else can also undertake the
steps for the TPMS to complete the ID
signal code registration.
1. After tires have been changed, switch

the ignition ON, then back to ACC or
OFF.

2. Wait for about 15 minutes.

3. After about 15 minutes, drive the

vehicle at a speed of at least 25 km/h
(16 mph) for 10 minutes and the tire
pressure sensor ID signal code will be
registered automatically.

NOTE
If the vehicle is driven within about 15
minutes of changing tires, the tire pressure
monitoring system warning light will flash
because the sensor ID signal code would
not have been registered. If this happens,
park the vehicle for about 15 minutes,
after which the sensor ID signal code will
register upon driving the vehicle for 10
minutes.

Replacing tires and wheels

CAUTION

When replacing/repairing the tires or

wheels or both, have the work done by
an Authorized Mazda Dealer, or the tire
pressure sensors may be damaged.

The wheels equipped on your Mazda are

specially designed for installation of the
tire pressure sensors. Do not use
non-genuine wheels, otherwise it may
not be possible to install the tire pressure
sensors.

Be sure to have the tire pressure sensors
installed whenever tires or wheels are
replaced.
When having a tire or wheel or both
replaced, the following types of tire
pressure sensor installations are possible.



The tire pressure sensor is removed
from the old wheel and installed to the
new one.

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

The same tire pressure sensor is used
with the same wheel. Only the tire is
replaced.



A new tire pressure sensor is installed to
a new wheel.

NOTE



The tire pressure sensor ID signal code
must be registered when a new tire
pressure sensor is purchased. For
purchase of a tire pressure sensor and
registration of the tire pressure sensor
ID signal code, consult an Authorized
Mazda Dealer.



When reinstalling a previously removed
tire pressure sensor to a wheel, replace
the grommet (seal between valve body/
sensor and wheel) for the tire pressure
sensor.

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Rear View Monitor

*

The rear view monitor provides visual images of the rear of the vehicle when reversing.

WARNING

Always drive carefully confirming the safety of the rear and the surrounding conditions by
looking directly with your eyes:
Reversing the vehicle by only looking at the screen is dangerous as it may cause an accident
or a collision with an object. The rear view monitor is only a visual assist device when
reversing the vehicle. The images on the screen may be different from the actual conditions.

CAUTION

Do not use the rear view monitor under the following conditions: Using the rear view

monitor under the following conditions is dangerous and could result in injury or vehicle
damage or both.

Icy or snow-covered roads.
Tire chains or a temporary spare tire is installed.
The liftgate is not fully closed.
The vehicle is on a road incline.

When the display is cold, images may course across the monitor or the screen and may be

dimmer than usual, which could cause difficulty in confirming the surrounding conditions
of the vehicle. Always drive carefully confirming the safety of the rear and the surrounding
conditions by looking directly with your eyes.

Do not apply excessive force to the camera. The camera position and angle may deviate.
Do not disassemble, modify, or remove it as it may no longer be waterproof.
The camera cover is made of plastic. Do not apply degreasing agents, organic solvents,

wax, or glass coating agents to the camera cover. If any are spilled on the cover, wipe off
with a soft cloth immediately.

Do not rub the camera cover forcefully with an abrasive or hard brush. The camera cover or

lens may be scratched which might affect the images.

NOTE



If water, snow, or mud is stuck on the camera lens, wipe it off using a soft cloth. If it
cannot be wiped off, use a mild detergent.



If the camera temperature changes rapidly (Hot to cold, cold to hot), the rear view
monitor may not operate correctly.



When replacing the tires, consult an Authorized Mazda Dealer. Replacing the tires could
result in deviation of the guide lines which appear on the display.

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

If the vehicle's front, side, or rear has been involved in a collision, the alignment of the
rear view parking camera (location, installation angle) may have deviated. Always
consult an Authorized Mazda Dealer to have the vehicle inspected.



If “No Video Signal Available” is indicated in the display, there could be a problem with
the camera. Have your vehicle inspected at an Authorized Mazda Dealer.

▼ Rear View Parking Camera Location

Rear view parking camera

▼ Switching to the Rear View Monitor Display

Shift the selector lever to reverse (R) position with the ignition switched ON to switch the
display to the rear view monitor display.

NOTE
When the selector lever is shifted from reverse (R) position to another selector lever
position, the screen returns to the previous display.

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▼ Displayable Range on the Screen

The images on the screen may be different from the actual conditions.
 

(Screen display)

Garnish

Bumper

(Actual view)

Object

Obstruction detection 
indication in parking 
sensor system

Some models

NOTE



The displayable range varies depending on the vehicle and road conditions.



The displayable range is limited. Objects under the bumper or around the bumper ends
cannot be displayed.



The distance appearing in the displayed image is different from the actual distance
because the rear view parking camera is equipped with a specific lens.



Some optionally installed vehicle accessories may be picked up by the camera. Do not
install any optional parts that can interfere with the camera view, such as illuminating
parts or parts made of reflective material.



It may be difficult to see the display under the following conditions, however, it does not
indicate a malfunction.



In darkened areas.



When the temperature around the lens is high/low.



When the camera is wet such as on a rainy day or during periods of high humidity.



When foreign material such as mud is stuck around the camera.



When the camera lens reflects sunlight or headlight beams.



Image display may be delayed if the temperature around the camera is low.

When Driving

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▼ Viewing the Display

Guide lines which indicate the width of the vehicle (yellow) are displayed on the screen as a
reference to the approximate width of the vehicle in comparison to the width of the parking
space you are about to back into.
Use this display view for parking your vehicle in a parking space or garage.

b

a

a) Vehicle width guide lines (yellow)

These guide lines serve as a reference to the approximate width of the vehicle.

b) Distance guide lines.

These guide lines indicate the approximate distance to a point measured from the
vehicle's rear (from the end of the bumper).



The red and yellow lines indicate the points about 50 cm (19 in) for the red line and
100 cm (39.3 in) for the yellow lines from the rear bumper (at the center point of each
of the lines).

CAUTION

The guide lines on the screen are fixed lines. They are not synced to the driver's turning of the
steering wheel. Always be careful and check the area to the vehicle's rear and the surrounding
area directly with your eyes while backing up.

▼ Rear View Monitor Operation

The operation of the rear view monitor when reversing the vehicle varies depending on the
traffic, road, and vehicle conditions. The amount of steering and the timing also varies
depending on conditions, so confirm the surrounding conditions directly with your eyes and
steer the vehicle in accordance with the conditions.
Be well aware of the above cautions prior to using the rear view monitor.

NOTE
Images displayed on the monitor from the rear view parking camera are reversed images
(mirror images).

When Driving

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