2018 MAZDA MODEL CX-9 sensor

Tire Pressure Monitoring System*
The Tire Pressure Monitoring System (TPMS) monitors the pressure for each tire.
If tire pressure is to o 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 Warning Indication/Warning Lights on page 4-32.
Refer to Tire Inflation Pressu re Warning Beep on page 7-50.

The tire pressure sensors installed on each wheel send tire pre ssure 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 illumina te 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 con dition of all four tires
regularly.
When Driving
Tire Pressure Monitoring System
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▼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 pressu
re sensor batteries
are exhausted.
•When using a wheel with no tire
pressure sensor installed.
•When using tires with steel wire
reinforcement in the side walls.
•When using tire chains.
▼ 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.
When Driving
Tire Pressure Monitoring System
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3. After about 15 minutes, drive thevehicle at a speed of at least 25 km/h
(16 mph) for 10 minutes and the tire
pressure sensor ID s ignal 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 fo r 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.
•The same tire pressu re sensor is used
with the same wheel. Only the tire is
replaced.
•A new tire pressure sen sor 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.
When Driving
Tire Pressure Monitoring System
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▼Displayable Range on the Screen
The images on the screen may be different from the actual condi
tions.

(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 part s 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
Rear View Monitor
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Parking Sensor System*
The parking sensor system uses ultrasonic sensors to detect obstructions around the vehicle
while parking the vehicle in a g arage or during parallel parking when the vehicle is driven at
a speed of about 10 km/h (6 mph) or less. The system is equippe d with an assist device to
notify the driver of the approxima te distance from the vehicle to the surrounding obstruction
using a beep sound and obstruction detection indication.

Rear corner sensor
Front corner sensor
Rear sensor
Front sensorSome models.
WA R N I N G
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 opera ting 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.
NOTE
•Do not install any accessories within the detection ranges of the sensors. It may affect the
system operation.
•Depending on the type of obstruction and th e surrounding conditions, the detection range
of a sensor may narrow, or the sensors may not be able to detect obstructions.
•The system may not operate norma lly under the following conditions:
•Mud, ice, or snow is adhering to the sensor area (Returns to normal operation when
removed).
•The sensor area is frozen (Returns to normal operation when the ice is thawed).
•The sensor is covered by a hand.
•The sensor is excessively shocked.
When Driving
Parking Sensor System
4-172*Some models.
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•The vehicle is excessively tilted.
•Under extremely hot or cold weather conditions.
•The vehicle is driven on bumps, inclines, gravel, or grass covered roads.
•Anything which generates ultrasound is near the vehicle, such as another vehicle's
horn, the engine sound of a motorcycle, the air brake sound of a large-sized vehicle, or
another vehicle's sensors.
•The vehicle is driven in heavy rain or in road conditions causing water-splash.
•A commercially-available fender pole or an antenna for a radio transmitter is installed
to the vehicle.
•The vehicle is moving towards a tall or square curbstone.
•An obstruction is too close to the sensor.
•Obstructions under the bumper may not be detected. Obstructions that are lower than the
bumper or thin which may have been initially detected but are no longer detected as the
vehicle approaches more closely.
•The following types of obstructions may not be detected:
•Thin objects such as wire or rope
•Things which absorb sonic waves easily such as cotton or snow
•Angular shaped objects
•Very tall objects, and those which are wide at the top
•Small, short objects
•Always have the system inspected at an Authorized Mazda Dealer if any shock is applied
to the bumpers, even in a minor accident. If the sensors are deviated, they cannot detect
obstructions.
•(With front sensor and front corner sensor)
The system may have a malfunction if the beep does not operate or the indicator light
does not illuminate when the park assist sensors switch is turned on. Consult an
Authorized Mazda Dealer.
•(Without front sensor an d front corner sensor)
The system may have a malfunction if the be ep does not operate. Consult an Authorized
Mazda Dealer.
•(With front sensor and front corner sensor)
The system may have a malfunction if the beep sound which indicates a system
malfunction is heard and the i ndicator light flashes. Consult an Authorized Mazda Dealer.
•The beeper which indicates a system malf unction may not be heard if the ambient
temperature is extremely cold, or mud, ice, or snow adheres to the sensor area. Remove
any foreign material from the sensor area.
•When installing a trailer hitch, consult an Authorized Mazda Dealer.
When Driving
Parking Sensor System
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▼Sensor Detection Range
The sensors detect obstruction
s within the following range.

Front sensor detection range
Front corner sensor detection range Rear sensor detection range
Rear corner sensor detection range
B
A
D
C A: About 55 cm (About 21.7 in)
B: About 55 cm (About 21.7 in)
C: About 100 cm (About 39.3 in)
D: About 150 cm (About 59.0 in)
▼
Park Assist Sensor System Operation
With front sensor and front corner sensor
The switch can be activated when the ignition is switched ON, t
he selector lever is in any
position except reverse (R), and the vehicle speed is about 10 km/h (6 mph) or less.
When the parking sensor switch is pressed, a beep sound is hear d, the obstruction detection
indication is displayed in the a udio screen, and the indicator light in the switch illuminates.

Indicator light
When Driving
Parking Sensor System
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NOTE
•If the system is cancelled, it will not restore automatically even when the vehicle speed is
decreased to 10 km/h (6 mph) or less.
•When the ignition is switched OFF, the system status before it was turned off is
maintained. For example, if the ignition is switched OFF while the parking sensor is
activated, the system will be activated when the ignition is switched ON the next time.
Sensor detection condition
The system can be used when the ignition is switched ON and the Park Assist Sensor
Switch has been turned on.
The sensors detect obstructions under the following conditions:
Sensor Condition
Front Sensor The selector lever is in any po
sition except reverse (R), and the vehicle speed is
about 10 km/h (6 mph) or less.
Front Corner Sensor The vehicle speed is about 10 km/h (6 mph) o r less.
Rear Sensor The selector lever is in reverse (R).
Rear Corner Sensor The selector lever is in rever
se (R), and the vehicle speed is about 10 km/h (6 mph)
or less.
The system is cancelled under the following conditions:
•The parking sensor switch is pressed while the parking sensor i s in operation.
•The vehicle speed is 10 km/h (6 mph) or more. (Except rear sens or)
Without front sensor and front corner sensor
When the ignition is switched ON and the selector lever is shifted to the reverse (R), the
beep sound activates and the system is enabled for use.
The sensors detect obstructions under the following conditions:
Sensor Condition
Rear Sensor The selector lever is in reverse (R).
Rear Corner Sensor The selector lever is in rever
se (R), and the vehicle speed is about 10 km/h (6 mph)
or less.
When Driving
Parking Sensor System
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