2018 MAZDA MODEL CX-9 sensor

•The Smart City Brake Support (SCBS)
has operated.
•When traveling on a downslope for a
long period of time.
•There is a problem with the system.
•The engine has stalled.
•The electric parking brake (EPB) is
automatically applied during stop hold
control.
•The radar sensor (front) cannot detect
target objects (during rain, fog, snow or
other inclement weather conditions, or
when the radiator grille is dirty).
Resuming control
If the MRCC with Stop & Go function
system is canceled, you can resume
control at the previously set speed by
pressing the RES switch and after all of
the operation conditions have been met.
NOTE
If the set speed is not indicated in the
display, the control does not resume even
if the RES switch is pressed.
Turning off the system
Press the OFF/CAN switch two times
while the MRCC with Stop & Go function
system is operating to switch off the
system.
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Smart Brake Support (SBS)*
The SBS system alerts the driver of a possible collision using a display and warning sound
if the radar sensor (front) and the Forward Sensing Camera (FSC ) determine that there is the
possibility of a collision with a vehicle ahead while the vehicle is being driven at about 15
km/h or faster (10 mph or faster). Furthermore, if the radar se nsor (front) and the Forward
Sensing Camera (FSC) determines that a collision is unavoidable , the automatic brake
control is performed to reduce da mage in the event of a collision.
In addition, whe n the driver depresses the brake ped al, the brakes are applied firmly and
quickly to assist. (Brake Assist (SBS brake assist))
WA R N I N G
Do not rely completely on the SBS system and always drive carefully:
The SBS is designed to reduce damage in the ev ent of a collision, not avoid an accident. The
ability to detect an obstruction is limited depending on the obstruction, weather conditions,
or traffic 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 pe dal while keeping a safer distance from vehicles ahead or
on-coming vehicles.
CAUTION
In the following cases, turn the system off to prevent a mis-operation:
 The vehicle is being towed or when towing another vehicle.
 The vehicle is on a chassis roller.
 When driving on rough roads such as in areas of dense grass or
off-road.
NOTE
•The SBS system operates when all of the following conditions are met:
•The ignition is switched ON.
•The 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 SBS system may not operate under the following conditions:
•If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.
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•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) are being displa yed in the multi-information display.
•Although the objects which activate the syst em are four-wheeled vehicles, the radar
sensor (front) could detect the following objects, determine them to be an obstruction, and
operate the 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 no tified by the multi-information display.
•The SBS warning indication (amber) turn s on when the system has a malfunction.
Refer to Warning Indication/Warning Lights on page 4-32.
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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 with S top & Go function (MRCC with Stop & Go function)
•Smart Brake Support (SBS)
The radar sensor (front) function s by detecting the radio waves reflected off a vehicle ahead
or an obstruction sent from the radar sensor.
The radar sensor (front) is m ounted behind the front emblem.
Radar sensor (front)
If “Front Radar Sensor Blocked” is displayed in the multi-infor mation display of the
instrument cluster, clean the area around the radar sensor (fro nt).
CAUTION
Heed the following precautions to assure correct operation of each system.
 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).
 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 al ways keep the radar sensor (front) clean.
 Do not install a grille guard.
 If the front part of the vehicle has been dama ged 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.
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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.
 Do not remove, disassemble, or mo dify the radar sensor (front).
 For repairs, replacement or paint work ar ound the radar sensor (front), consult an
Authorized Mazda Dealer.
 Do not modify the suspension. If the suspensi on are modified, the vehicle's posture could
change and the radar sensor (front) may not be able to correctly detect a vehicle ahead or
an obstruction.
NOTE
•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.
•The rear surface of a vehicle ahead does not reflect 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.
•Vehicles ahead with low vehicle height and thus less area for reflecting radio waves.
•Visibility is reduced due to a vehicle ahead casting off water, snow, or sand from its tires
and onto your windshield.
•The luggage compartment is loaded with heavy objects or the rear passenger seats are
occupied.
•Ice, snow, or soiling is on the front surface of the front emblem.
•During inclement weather such as rain, snow, or sand storms.
•When driving near facilities or objects emitting strong radio waves.
•Under the following conditions, the radar sensor (front) may not be able to detect vehicles
ahead or obstructions.
•The beginning and end of a curve.
•Roads with continuous curves.
•Narrow lane roads due to road construction or lane closures.
•The vehicle ahead enters the radar sensor's blind spot.
•The vehicle ahead is running abnormally due to accident or vehicle damage.
•Roads with repeated up and down slopes
•Driving on poor roads or unpaved roads.
•The distance between your vehicle and the vehicle ahead is extremely short.
•A vehicle suddenly comes close such as by cutting into the lane.
•To prevent incorrect operation of the system, use tires of the same specified size,
manufacturer, brand, and tread pattern on all four wheels. In addition, do not use tires
with significantly different wear patterns or tire pressures on the same vehicle (Including
the temporary spare tire).
•If the battery power is weak, the system may not operate correctly.
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•When driving on roads with little traffic and few vehicles ahead or obstructions for the
radar sensor (front) to detect, “Front Radar Sensor Blocked” may be temporarily
displayed, however, this does not indicate a problem.
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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 senso rs (rear) clean so that the
radar sensors (rear) operate normally. Also, do not apply items such as stickers.
Refer to Exterior Care on page 6-60.
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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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.
•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 th e 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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