sensor MAZDA MODEL CX-3 2016 (in English) Service Manual
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When Driving
i-ACTIVSENSE
NOTE
y The Smart Brake Support (SBS) system operates when all of the following conditions are
met:
y The ignition is switched ON.
y The Smart Brake Support (SBS) system is on.
y The vehicle speed is about 15 km/h or faster (10 mph or faster).
y The relative speed between your vehicle and the vehicle ahead is about 15 km/h or
faster (10 mph or faster).
y The Dynamic Stability Control (DSC) is not operating.
y The Smart Brake Support (SBS) system may not operate under the following conditions:
y If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.
y The vehicle is driven at the same speed as the vehicle ahead.
y The accelerator pedal is depressed.
y The brake pedal is depressed.
y The steering wheel is being operated.
y The selector lever is being operated.
y The turn signal is being used.
y When the vehicle ahead is not equipped with taillights or the taillights are turned off.
y When warnings and messages, such as a dirty windshield, related to the Forward
Sensing Camera (FSC)/laser sensor (front) are being displayed in the center display.
y Although the objects which activate the system are four-wheeled vehicles, the radar
sensor (front) could detect the following objects, determine them to be an obstruction, and
operate the Smart Brake Support (SBS) system.
y Objects on the road at the entrance to a curve (including guardrails and snow banks).
y A vehicle appears in the opposite lane while cornering or rounding a curve.
y When crossing a narrow bridge.
y When passing under a low gate or through a tunnel or narrow gate.
y When entering an underground parking area.
y Metal objects, bumps, or protruding objects on the road.
y If you suddenly come close to a vehicle ahead.
y When driving in areas where there is high grass or forage.
y Two-wheeled vehicles such as motorbikes or bicycles.
y Pedestrians or non-metallic objects such as standing trees.
y When the system operates, the user is notifi ed by the fl ashing Smart Brake Support (SBS)
indicator light (red) and the active driving display.
y The Smart Brake Support (SBS) warning light (amber) turns on when the system has a
malfunction. Refer to Warning/Indicator Lights on page 4-24 .
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When Driving
i-ACTIVSENSE
Radar Sensor (Front) *
Your vehicle is equipped with a radar sensor (front).
The following systems also use the radar sensor (front).
y Mazda Radar Cruise Control (MRCC)
y Distance Recognition Support System (DRSS)
y Smart Brake Support (SBS)
The radar sensor (front) functions by detecting the radio waves refl ected off a vehicle ahead
or an obstruction sent from the radar sensor.
The radar sensor (front) is mounted behind the front emblem.
Radar sensor (front)
If the Smart Brake Support/Smart City Brake Support (SBS/SCBS) Warning Light (amber)
is illuminated, the area around the radar sensor may be dirty. Refer to “Warning Guidance”
in the center display (Type B audio).
Refer to If a Warning Light Turns On or Flashes on page 7-27
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When Driving
i-ACTIVSENSE
.CAUTION
Heed the following precautions to assure correct operation of each system.
¾ Do not adhere stickers (including transparent stickers) to the surface of the radiator
grille and front emblem in and around the radar sensor (front), and do not replace
the radiator grille and front emblem with any product that is not a genuine product
designed for use with the radar sensor (front).
¾ The radar sensor (front) includes a function for detecting soiling of the radar sensor's
front surface and informing the driver, however, depending on the conditions, it may
require time to detect or it may not detect plastic shopping bags, ice or snow. If this
occurs, the system may not operate correctly, therefore always keep the radar sensor
(front) clean.
¾ Do not install a grille guard.
¾ If the front part of the vehicle has been damaged in a vehicle accident, the position of
the radar sensor (front) may have moved. Stop the system immediately and always
have the vehicle inspected at an Authorized Mazda Dealer.
¾ Do not use the front bumper to push other vehicles or obstructions such as when
pulling out of a parking space. Otherwise, the radar sensor (front) could be hit and its
position deviated.
¾ Do not remove, disassemble, or modify the radar sensor (front).
¾ For repairs, replacement or paint work around the radar sensor (front), consult an
Authorized Mazda Dealer.
¾ Do not modify the suspension. If the suspension are modifi ed, the vehicle's posture
could change and the radar sensor (front) may not be able to correctly detect a
vehicle ahead or an obstruction.
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When Driving
i-ACTIVSENSE
NOTE
y Under the following conditions, the
radar sensor (front) may not be able to
detect vehicles ahead or obstructions
correctly and each system may not
operate normally.
y The rear surface of a vehicle
ahead does not refl ect radio waves
effectively, such as an unloaded
trailer or an automobile with a
loading platform covered by a soft
top, vehicles with a hard plastic
tailgate, and round-shaped vehicles.
y Vehicles ahead with low vehicle
height and thus less area for
refl ecting radio waves.
y Visibility is reduced due to a vehicle
ahead casting off water, snow, or
sand from its tires and onto your
windshield.
y The luggage compartment is loaded
with heavy objects or the rear
passenger seats are occupied.
y Ice, snow, or soiling is on the front
surface of the front emblem.
y During inclement weather such as
rain, snow, or sand storms.
y When driving near facilities or
objects emitting strong radio waves.
y Under the following conditions, the
radar sensor (front) may not be able to
detect vehicles ahead or obstructions.
y The beginning and end of a curve.
y Roads with continuous curves.
y Narrow lane roads due to road
construction or lane closures.
y The vehicle ahead enters the radar
sensor's blind spot.
y The vehicle ahead is running
abnormally due to accident or
vehicle damage.
y Roads with repeated up and down
slopes
y Driving on poor roads or unpaved
roads.
y The distance between your vehicle
and the vehicle ahead is extremely
short.
y A vehicle suddenly comes close such
as by cutting into the lane.
y To prevent incorrect operation of the
system, use tires of the same specifi ed
size, manufacturer, brand, and tread
pattern on all four wheels. In addition,
do not use tires with signifi cantly
different wear patterns or tire pressures
on the same vehicle (Including the
temporary spare tire).
y If the battery power is weak, the system
may not operate correctly.
y When driving on roads with little
traffi c and few vehicles ahead or
obstructions for the radar sensor to
detect, Smart Brake Support/Smart City
Brake Support (SBS/SCBS) Warning
Light (amber) temporarily illuminates,
however, this does not indicate a
problem.
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When Driving
i-ACTIVSENSE
Laser Sensor (Front) *
Your vehicle is equipped with a laser sensor (front). The laser sensor (front) is positioned
near the rearview mirror and used by the following systems.
y Smart Brake Support (SBS)
y Smart City Brake Support (SCBS)
Laser sensor (front)
CAUTION
Heed the following precautions to assure correct operation of the system.
¾ Keep the windshield clean at all times.
¾ Do not apply stickers to the surface of the windshield (including transparent stickers).
¾ If cracks or damage caused by fl ying gravel or debris is visible near the laser sensor
(front), stop using the system immediately and have your vehicle inspected by an
Authorized Mazda Dealer.
See the next page on how to turn off the system. Refer to Personalization Features on
page 9-10 .
¾ Do not apply a coating agent to the windshield.
¾ When replacing the windshield wipers or windshield, consult an Authorized Mazda
Dealer.
¾ Never remove the sensor.
¾ A removed sensor will not meet the conditions for a class 1M laser under the IEC
60825-1 specifi cation and therefore eye safety cannot be assured.
¾ Do not peer into the sensor using optical instruments with a magnifi cation function
such as magnifying glasses, and microscopic and objective lenses within a distance
of 100 mm (3.94 in) from the sensor.
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When Driving
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Laser sensor radiation data
Maximum average power:45 mW
Pulse duration:33 ns
Wavelength:905 nm
Divergence angle (horizontal×vertical):28 degrees×12 degrees
NOTE
y In the following cases, the laser sensor (front) cannot detect vehicles ahead correctly, and
each system may be unable to operate normally.
y The windshield is dirty.
y Elongated luggage or cargo is loaded onto installed roof rails and covers the laser
sensor (front).
y Exhaust gas from the vehicle in front, sand, snow, and water vapor rising from
manholes and grating, and water splashed into the air.
y If there are recognizable cracks or damage caused by fl ying gravel or debris on the
windshield, always have the windshield replaced. Consult an Authorized Mazda Dealer
for replacement.
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When Driving
i-ACTIVSENSE
Radar Sensors (Rear) *
Your vehicle is equipped with radar sensors (rear). The following systems also use the radar
sensors (rear).
y Blind Spot Monitoring system (BSM)
y Rear Cross Traffi c Alert (RCTA)
The radar sensors (rear) function by detecting the radio waves refl ected 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 6-58 .
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.
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When Driving
i-ACTIVSENSE
NOTE
y 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.
y The rear bumper near the radar sensors (rear) has become deformed.
y Snow, ice or mud adheres to the radar sensors (rear) on the rear bumper.
y Under bad weather conditions such as rain, snow and fog.
y Under the following conditions, the radar sensors (rear) cannot detect target objects or it
may be diffi cult to detect them.
y Stationary objects on a road or a road side such as small, two-wheeled vehicles,
bicycles, pedestrians, animals, and shopping carts.
y Vehicle shapes which do not refl ect radar waves well such as empty trailers with a low
vehicle height and sports cars.
y 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.
y For repairs or replacement of the radar sensors (rear), or bumper repairs, paintwork,
and replacement near the radar sensors, consult an Authorized Mazda Dealer.
y 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.
y 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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When Driving
Tire Pressure Monitoring System
Tire Pressure Monitoring System *
The Tire Pressure Monitoring System (TPMS) monitors the air pressure of all four tires. If
the air pressure of one or more tires is too low, the system warns the driver by indicating the
tire pressure monitoring system warning light in the instrument cluster and operating a beep
sound. The system monitors the tire pressures indirectly using the data sent from the ABS
wheel speed sensors.
To allow the system to operate correctly, the system needs to be initialized with the specifi ed
tire pressure (value on the tire pressure label). Follow the procedure and perform the
initialization.
Refer to Tire Pressure Monitoring System Initialization on page 4-129 .
The warning light fl ashes when the system has a malfunction.
Refer to Warning Lights on page 4-25 .
ABS wheel speed sensor
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Interior Features
Climate Control System
Sunlight/Temperature Sensor
The climate control system measures
inside and outside temperatures, and
sunlight. It then sets temperatures inside
the passenger compartment accordingly.
CAUTION
Do not obstruct either sensor,
otherwise the climate control system
will not operate properly.
Sunlight sensor
Interior temperature sensor
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