2017 MAZDA MODEL CX-9 sensor
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When Driving
i-ACTIVSENSE
*Some models.
Mazda Radar Cruise Control (MRCC) *
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway control *1
according to the vehicle speed using a radar sensor (front) to detect the distance to a vehicle
ahead, and by presetting the vehicle speed between 30 km/h (19 mph) and 145 km/h (90
mph), the driver is freed from having to constantly use the accelerator or brake pedals.
*1 Headway Control: Control of the distance between your vehicle and the vehicle ahead
detected by the Mazda Radar Cruise Control (MRCC) system.
Additionally, if your vehicle starts closing in on the vehicle ahead because, for example, the
vehicle ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a suffi cient distance between the vehicles.
Use the Mazda Radar Cruise Control (MRCC) system on expressways and other highways
which do not require a lot of repeated acceleration and deceleration.
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*Some models.
Smart City Brake Support (SCBS) *
The Smart City Brake Support (SCBS) system is designed to reduce damage in the event
of a collision by operating the brake control (SCBS brake) when the system's laser sensor
(front) detects a vehicle ahead and determines that a collision with a vehicle ahead is
unavoidable. It may also be possible to avoid a collision if the relative speed between your
vehicle and a vehicle ahead is less than about 20 km/h (12 mph).
In addition, when the driver depresses the brake pedal while the system is in the operation
range at about 4 to 30 km/h (2 to 18 mph), the brakes are applied fi rmly and quickly to
assist. (Brake Assist (SCBS brake assist))
Laser sensor (front)
WARNING
Do not rely on the Smart City Brake Support System (SCBS) as a substitute for safer
driving:
The Smart City Brake Support (SCBS) system cannot compensate for unsafe and reckless
driving, excessive speed, tailgating (following another vehicle too closely), and driving on
slippery roads such as wet, snowy, and icy roads (reduced tire friction and road contact
because of water on the road surface). You can still have an accident.
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Do not rely completely on the Smart City Brake Support (SCBS) system:
The Smart City Brake Support (SCBS) system is only designed to reduce damage in the
event of a collision. Over reliance on the system leading to the accelerator pedal or
brake pedal being mistakenly operated could result in an accident.
The Smart City Brake Support (SCBS) is a system which operates in response to a
vehicle ahead. The system may not be able to detect or react to two-wheeled vehicles
or pedestrians.
The laser sensor (front) for the Smart City Brake Support (SCBS) system is installed near
the rearview mirror. To assure the correct operation of the Smart City Brake Support
(SCBS), heed the following cautions.
Do not apply stickers to the surface of the windshield near the laser sensor (front)
(including transparent stickers). Otherwise, the laser sensor (front) may not be able
to detect vehicles ahead which could result in an accident.
Do not apply coating agent to the windshield. Otherwise, the laser sensor (front)
may not be able to detect vehicles or obstructions in front which could result in an
accident.
Do not disassemble the laser sensor (front).
If cracks or damage caused by fl ying gravel or debris is visible near the laser sensor
(front), stop using the Smart City Brake Support (SCBS) system immediately and
have your vehicle inspected by an Authorized Mazda Dealer. If the vehicle continues
to be driven with cracks or scratch marks left on the windshield near the laser sensor
(front), the system may operate unnecessarily and cause an unexpected accident.
Refer to Stopping the Smart City Brake Support (SCBS) System Operation on page
4-132 .
When replacing the windshield wipers or windshield, consult an Authorized Mazda
Dealer.
Do not modify the suspension:
If the vehicle height or inclination is changed, the system will not be able to correctly
detect vehicles ahead. This will result in the Smart City Brake Support (SCBS) system not
operating normally or mistakenly operating, which could cause a serious accident.
Turn off the Smart City Brake Support (SCBS) when the vehicle is running on a chassis
roller or being towed:
Turn off the Smart City Brake Support (SCBS) system to prevent mistaken operation when
the vehicle is running on a chassis roller or being towed.
Refer to the Stopping the Smart City Brake Support (SCBS) System Operation on page
4-132 on how to turn off the Smart City Brake Support (SCBS) system.
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CAUTION
When driving off -road in areas where there is grass or foliage, it is recommended that the
Smart City Brake Support (SCBS) system be turned off .
Always use tires for all wheels that are of the specifi ed size, and the same manufacturer,
brand, and tread pattern. In addition, do not use tires with signifi cantly diff erent wear
patterns on the same vehicle as the Smart City Brake Support (SCBS) system may not
operate normally.
The laser sensor (front) includes a function for detecting a soiled windshield and informing
the driver, however, depending on the conditions, it may not detect plastic shopping bags,
ice or snow on the windshield. In such cases, the system cannot accurately determine a
vehicle ahead and may not be able to operate normally. Always drive carefully and pay
attention to the road ahead.
NOTE
The Smart City Brake Support (SCBS) system will not operate if the driver is deliberately
performing driving operations (accelerator pedal and steering wheel).
The Smart City Brake Support (SCBS) system will operate under the following conditions.
The engine is running.
“Forward Smart City Brake Support Malfunction” is not displayed in the multi-
information display.
The vehicle speed is between about 4 to 30 km/h (2 to 18 mph).
The Smart City Brake Support (SCBS) system is not turned off.
The DSC is not malfunctioning.
The Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-infrared
laser beam and receiving the beam refl ected off the refl 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:
Refl ection of the laser is poor due to the shape of the vehicle ahead.
The vehicle ahead is signifi cantly dirty.
Under bad weather condition, such as rain, fog and snow.
The window washer is being used or the windshield wipers are not used when it's
raining.
The windshield is dirty.
The steering wheel is turned completely left or right, or the vehicle is accelerated
rapidly and comes close to the vehicle ahead.
Trucks with low loading platforms and vehicles with an extremely low or high profi le.
Vehicles with certain shapes such as a vehicle carrier.
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Under the following conditions, the Smart City Brake Support (SCBS) system may not
operate normally.
Heavy luggage is loaded in the luggage compartment or on the rear seat.
If there is the possibility of partial contact with a vehicle ahead.
When driving on continuously curving roads, and entering and exiting exits.
Elongated luggage or cargo is loaded onto installed roof rails and covers the laser
sensor (front).
Exhaust gas from the vehicle in front, sand, snow, and water vapor rising from
manholes and grating, and water splashed into the air.
When towing a malfunctioning vehicle.
When driving with tires having signifi cantly different wear.
When the vehicle is driven in the following locations, the smart city brake support (SCBS)
may determine that there is a possibility of a collision and may operate.
Objects on the road at the entrance to a curve.
Vehicles passing in the opposite lane while making a curve.
Metal objects, bumps, or protruding objects on the road.
When passing through a toll gate equipped with a bar.
When passing under a vinyl curtain or fl ag.
Plastic objects such as pylons.
Two-wheeled vehicles, pedestrians, animals or standing trees.
When the vehicle is driven in the following locations with the inner/outer side of the near-
infrared laser irradiation part (black printed area in the center of the upper portion of the
windshield) fogged or covered in water droplets, the smart city brake support (SCBS) may
determine that there is a possibility of a collision and may operate.
The vehicle is driven into tunnels with low ceilings and on roads with structures above
the road such as road signs.
The vehicle is driven close to structures on the road such as road signs and guardrails.
When the system operates, the user is notifi ed by the multi-information display.
The Smart City Brake Support (SCBS) warning indication (amber) turns on when the
system has a malfunction.
Refer to Warning Indication/Warning Lights on page 4-32 .
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*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.
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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NOTE
The Smart Brake Support (SBS) system operates when all of the following conditions are
met:
The ignition is switched ON.
The Smart Brake Support (SBS) system is on.
The vehicle speed is about 15 km/h or faster (10 mph or faster).
The relative speed between your vehicle and the vehicle ahead is about 15 km/h or
faster (10 mph or faster).
The Dynamic Stability Control (DSC) is not operating.
The Smart Brake Support (SBS) system may not operate under the following conditions:
If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.
The vehicle is driven at the same speed as the vehicle ahead.
The accelerator pedal is depressed.
The brake pedal is depressed.
The steering wheel is being operated.
The selector lever is being operated.
The turn signal is being used.
When the vehicle ahead is not equipped with taillights or the taillights are turned off.
When warnings and messages, such as a dirty windshield, related to the Forward
Sensing Camera (FSC)/laser sensor (front) are being displayed in the multi-
information display.
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.
Objects on the road at the entrance to a curve (including guardrails and snow banks).
A vehicle appears in the opposite lane while cornering or rounding a curve.
When crossing a narrow bridge.
When passing under a low gate or through a tunnel or narrow gate.
When entering an underground parking area.
Metal objects, bumps, or protruding objects on the road.
If you suddenly come close to a vehicle ahead.
When driving in areas where there is high grass or forage.
Two-wheeled vehicles such as motorbikes or bicycles.
Pedestrians or non-metallic objects such as standing trees.
When the system operates, the user is notifi ed by the multi-information display.
The Smart Brake Support (SBS) warning indication (amber) turns on when the system has
a malfunction.
Refer to Warning Indication/Warning Lights on page 4-31 .
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*Some models.
Radar Sensor (Front) *
Your vehicle is equipped with a radar sensor (front).
The following systems also use the radar sensor (front).
Distance Recognition Support System (DRSS)
Mazda Radar Cruise Control (MRCC)
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 “Front Radar Sensor Blocked” is displayed in the multi-information display of the
instrument cluster, clean the area around the radar sensor (front).
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