2017 MAZDA MODEL CX-3 brake sensor

4–106
When Driving
i-ACTIVSENSE
*Some models.
 


y The Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-infrared
laser beam and receiving the beam reÀ ected off the reÀ ector of the vehicle ahead, and
then using it for the measurement. Consequently, the Smart City Brake Support (SCBS)
may not operate under the following conditions:
 


y ReÀ ection of the laser is poor due to the shape of the vehicle ahead.



y The vehicle ahead is signi¿ cantly dirty.



y Under bad weather condition, such as rain, fog and snow.



y The window washer is being used or the windshield wipers are not used when it's
raining.
 


y The windshield is dirty.



y The steering wheel is turned completely left or right, or the vehicle is accelerated
rapidly and comes close to the vehicle ahead.
 


y Trucks with low loading platforms and vehicles with an extremely low or high pro¿ le.



y Vehicles with certain shapes such as a vehicle carrier. 



y Under the following conditions, the Smart City Brake Support (SCBS) system may not
operate normally.
 


y Heavy luggage is loaded in the luggage compartment or on the rear seat.



y If there is the possibility of partial contact with a vehicle ahead.



y When driving on continuously curving roads, and entering and exiting exits.



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 When towing a malfunctioning vehicle.



y When driving with tires having signi¿ cantly different wear. 



y In the following cases, the laser sensor (front) may inadvertently determine that there is a
vehicle ahead and the Smart City Brake Support (SCBS) system may operate.
 


y Objects on the road at the entrance to a curve.



y Vehicles passing in the opposite lane while making a curve.



y Metal objects, bumps, or protruding objects on the road.



y When passing through a toll gate equipped with a bar.



y When passing under a vinyl curtain or À ag.



y Plastic objects such as pylons.



y Two-wheeled vehicles, pedestrians, animals or standing trees. 



y When the system operates, the user is noti¿ ed by the À ashing Smart City Brake Support
(SCBS) indicator light (red) and the active driving display * . 


y The Smart City Brake Support (SCBS) warning light (amber) turns on when the system
has a malfunction.
  Refer to Warning Lights on page 4-25 .
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4–10 8
When Driving
i-ACTIVSENSE
*Some models.
Smart Brake Support (SBS) *
Smart Brake Support (SBS) is a system which alerts the driver of a possible collision using
an indicator and warning sound in the instrument cluster while the vehicle is being driven at
about 15 km/h or faster (10 mph or faster) and the system's radar sensor (front) determines
that your vehicle may hit a vehicle ahead. Furthermore, if the radar sensor (front) determines
that a collision is unavoidable, the automatic brake control is performed to reduce damage in
the event of a collision.
In addition, when the driver depresses the brake pedal, the brakes operate more quickly to
assist the driver (vehicles with brake À uid pre-¿ ll).
WARNING
Do not rely completely on the Smart Brake Support (SBS) system and always drive
carefully:
The Smart Brake Support (SBS) is designed to reduce damage in the event of a collision,
not avoid an accident. The ability to detect an obstruction is limited depending on the
obstruction, weather conditions, or traffi c conditions. Therefore, if the accelerator pedal
or brake pedal is mistakenly operated it could result in an accident. Always verify the
safety of the surrounding area and depress the brake pedal or accelerator pedal while
keeping a safer distance from vehicles ahead or on-coming vehicles.

CAUTION
If the vehicle is towed or you are towing something, switch the Smart Brake Support (SBS)
system off to prevent a mistaken operation.

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4–109
When Driving
i-ACTIVSENSE
N O T E
 


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 noti¿ ed by the À 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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4–114
When Driving
i-ACTIVSENSE
*Some models.
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 reÀ 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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4–116
When Driving
i-ACTIVSENSE
N O T E
 


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 reÀ 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 reÀ 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 speci¿ ed size,
manufacturer, brand, and tread pattern on all four wheels. In addition, do not use tires
with signi¿ 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 If the vehicle is driven on a road with little traf¿ c and few vehicles ahead or obstructions
for the radar sensor (front) to detect, the sensor detects that the radar sensor (front) is
dirty and the Smart Brake Support/Smart City Brake Support (SBS/SCBS) Warning Light
(amber) may be temporarily turned on. However, it does not indicate a malfunction.

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4–117
When Driving
i-ACTIVSENSE
*Some models.
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 City Brake Support (SCBS)



y Smart Brake Support (SBS)

Laser sensor (front)

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7–36
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.
Signal Warning Action to be taken

(Amber)
Smart Brake
Support/Smart
City Brake
Support (SBS/
SCBS) Warning
Light
* The light turns on if the windshield or the radar
sensor are dirty, or there is a malfunction in the
system.
(Vehicles with type B audio)
Verify the reason why the warning light
is illuminated on the center display (page
7-27 ).
If the reason why the warning light is
illuminated is due to a dirty windshield,
clean the windshield.
If the warning light is illuminated because
of a dirty radar sensor, clean the front
emblem.
For any other reasons, have the vehicle
inspected at an Authorized Mazda Dealer.
(Vehicles without type B audio)
If the reason why the warning light is
illuminated is due to a dirty windshield,
clean the windshield. For any other
reasons, have the vehicle inspected at an
Authorized Mazda Dealer.


KEY Warning Light
Take the appropriate action and verify that the warning light turns off.

Signal Cause Action to be taken

(Red)
(Flashing) The advanced key battery is dead. Replace the key battery (page 6-39 ).
The advanced key is not within the
operation range.
Bring the advanced key into the operation
range (page 3-7 ). The advanced key is placed in areas inside
the cabin where it is dif¿ cult for the key to
be detected.
A key from another manufacturer similar to
the advanced key is in the operation range. Take the key from another manufacturer
similar to the advanced key out of the
operation range.
Without the ignition switched off, the
advanced key is taken out of the cabin, and
then all the doors are closed. Bring the advanced key back into the
cabin.

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10–4
F
Flasher
Hazard warning ............................. 4-53
Headlights ..................................... 4-41
Flat Tire ................................................. 7-3
Mounting the Spare Tire................ 7-13
Removing a Flat Tire ..................... 7-10
Floor Mat ............................................ 3-42
Fluid
Brake ............................................. 6-32
Washer ........................................... 6-32
Fluids
Classi¿ cation ................................... 9-4
Fog Lights ........................................... 4-46
Foot Brake ........................................... 4-54
Forward Sensing Camera (FSC) ....... 4-111
Front Seat .............................................. 2-5
Fuel
Filler lid and cap............................ 3-27
Gauge ............................................ 4-18
Requirements................................. 3-24
Tank capacity .................................. 9-5
Fuel Consumption Display ................. 4-62
Fuel Economy Monitor ....................... 4-62
Ending screen display ................... 4-63
Fuel consumption display ............. 4-62
Fuses ................................................... 6-53
Panel description ........................... 6-56
Replacement .................................. 6-53
G
Gauges ................................................. 4-12
Glove Compartment .......................... 5-135
H
Hazard Warning Flasher ...................... 4-53
Hazardous Driving .............................. 3-42
Head Restraint ..................................... 2-10 Headlights
Coming home light ........................ 4-44
Control........................................... 4-41
Flashing ......................................... 4-44
High-low beam .............................. 4-44
Leaving home light ....................... 4-45
Leveling......................................... 4-45
High Beam Control System (HBC) .... 4-71
Hill Launch Assist (HLA) ................... 4-56
Hood Release ...................................... 6-24
Horn .................................................... 4-53
I
i-ACTIV AWD Operation ................... 4-65
i-ACTIVSENSE .................................. 4-68
Active Safety Technology ............. 4-68
Adaptive Front Lighting System
(AFS) ............................................. 4-70
Blind Spot Monitoring (BSM) ...... 4-80
Camera and sensors ....................... 4-69
Distance Recognition Support System
(DRSS) .......................................... 4-86
Forward Sensing Camera (FSC) ... 4-111
High Beam Control System
(HBC) ............................................ 4-71
Lane Departure Warning System
(LDWS) ......................................... 4-74
Laser Sensor ................................ 4-117
Mazda Radar Cruise Control
(MRCC)......................................... 4-92
Pre-Crash Safety Technology ........ 4-68
Radar Sensors (Rear)................... 4-120
Radar sensor (front)..................... 4-114
Rear Cross Traf¿ c Alert (RCTA) ... 4-89
Smart Brake Support (SBS) ........ 4-108
Smart City Brake Support
(SCBS) ........................................ 4-103
If a Warning Light Turns On or
Flashes................................................. 7-27
If the Active Driving Display does not
operate ................................................. 7-45
Index
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