brake sensor MAZDA MODEL 2 2019 Owners Manual (in English)
Page 192 of 759
7 U D Q V D [ O H 5 D Q J H V
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I U R Q W Z K H H O V I U R P U R W D W L Q J
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Always set the selector lever to P position
and set the parking brake:
Only setting the selector lever to the P
position without using the parking brake to
hold the vehicle is dangerous. If P fails to
hold, the vehicle could move and cause an
accident.
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¾Shifting into P, N or R while the vehicle is
moving can damage your transaxle.
¾Shifting into a driving gear or reverse
when the engine is running faster than
idle can damage the transaxle.
5 5 H Y H U V H
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5 R F N L Q J W K H 9 H K L F O H S D J H
NOTE
(With parking sensor system)
When the selector lever is shifted to the R
position with the ignition switched ON, the
parking sensor system is activated and a
beep sound is heard.
Refer to Parking Sensor System on page
4-237.
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E U D N H R U E U D N H V D U H R Q
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If the engine is running faster than idle, do
not shift from N or P into a driving gear:
It's dangerous to shift from N or P into a
driving gear when the engine is running
faster than idle. If this is done, the vehicle
could move suddenly, causing an accident
or serious injury.
Do not shift into N when driving the
vehicle:
Shifting into N while driving is dangerous.
Engine braking cannot be applied when
decelerating which could lead to an
accident or serious injury.
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Do not shift into N when driving the
vehicle. Doing so can cause transaxle
damage.
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Page 313 of 759
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Do not rely completely on the SCBS R system:
¾The SCBS R 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.
¾To assure the correct operation of the SCBS R, heed the following cautions.
¾Do not apply a sticker to an ultrasonic sensor (rear) (including transparent stickers).
Otherwise, the ultrasonic sensor (rear) may not be able to detect vehicles or obstructions
which could result in an accident.
¾Do not disassemble an ultrasonic sensor (rear).
¾If cracks or damage caused by flying gravel or debris is visible around an ultrasonic
sensor (rear), stop using the SCBS R system immediately and have your vehicle inspected
by an expert repairer (we recommend an Authorised Mazda Repairer). If the vehicle
continues to be driven with cracks or scratch marks left around an ultrasonic sensor, the
system may operate unnecessarily and cause an unexpected accident.
Refer to Stopping the Smart City Brake Support [Reverse] (SCBS R) System Operation on
page 4-176.
¾Consult an expert repairer (we recommend an Authorised Mazda Repairer) for rear
bumper replacement.
Do not modify the suspension:
If the vehicle height or inclination is changed, the SCBS R system may not operate correctly
because it cannot detect obstructions correctly.
Do not apply a strong force to an ultrasonic sensor (rear):
When washing the vehicle, do not spray highly pressurised water against an ultrasonic sensor
(rear), or rub it strongly. In addition, do not hit the rear bumper forcefully when loading and
unloading cargo Otherwise, the sensors may not detect obstructions correctly which could
cause the SCBS R system to not operate normally, or it could operate unnecessarily.
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¾When driving off-road in areas where there is grass or foliage, it is recommended that the
SCBS R system be turned off.
¾Always use tyres of the
specified size and the same manufacturer, brand, and tread pattern
on all 4 wheels. In addition, do not use tyres with significantly different wear patterns on the
same vehicle. Otherwise, the SCBS R system may not operate normally.
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¾If ice or snow is stuck on the ultrasonic sensors (rear) they may not be able to detect
obstructions correctly depending on the conditions. In such cases, the system may not be
able to perform controls correctly. Always drive carefully and pay attention to the rear of
the vehicle.
NOTE
xThe vehicle posture changes depending on the accelerator pedal, brake pedal and
steering wheel operations, which could make it difficult for the system to recognise an
obstruction, or it could facilitate unnecessary detection. In such cases, the SCBS R may or
may not operate.
xThe SCBS R system will operate under the following conditions.
xThe Smart City Brake Support (SCBS) warning light (amber) does not illuminate.
xThe engine is running.
xThe change lever (manual transaxle vehicle) or the selector lever (automatic transaxle
vehicle) is in the R (reverse) position.
xThe vehicle speed is between about 2 to 8 km/h (2 to 4 mph).
xThe SCBS R is not turned off.
xThe DSC is not malfunctioning.
xThe SCBS R operates using ultrasonic sensors (rear) which detect obstructions at the rear
by emitting ultrasonic waves and then receiving the returning waves reflected off the
obstructions.
xIn the following cases, the ultrasonic sensors (rear) cannot detect obstructions and the
SCBS R may not operate.
xThe height of the obstruction is low such as low walls or trucks with low loading
platforms.
xThe height of the obstruction is high such as trucks with high loading platforms.
xThe obstruction is small.
xThe obstruction is thin such as a signpost.
xThe obstruction is positioned away from the centre of the vehicle.
xThe surface of the obstruction is not pointed vertically relative to the vehicle.
xThe obstruction is soft such as a hanging curtain or snow stuck to a vehicle.
xThe obstruction is shaped irregularly.
xThe obstruction is extremely close.
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xIn the following cases, the ultrasonic sensors (rear) cannot detect obstructions correctly
and the SCBS R may not operate.
xSomething is stuck on the bumper near an ultrasonic sensor (rear).
xThe steering wheel is turned sharply, or the brake or accelerator pedal is operated.
xThere is another obstruction near one obstruction.
xDuring inclement weather such as rain, fog and snow.
xHigh or low humidity.
xHigh or low temperatures
xStrong winds.
xThe path of travel is not flat.
xHeavy luggage is loaded in the luggage compartment or on the rear seat.
xObjects such as a wireless aerial, fog light, or illuminated number plate is installed
near an ultrasonic sensor (rear).
xThe orientation of an ultrasonic sensor (rear) has deviated for reasons such as a
collision.
xThe vehicle is affected by other sound waves such as the horn, engine noise, ultrasonic
sensor of another vehicle.
xIn the following cases, an ultrasonic sensor (rear) may detect something as a target
obstruction which could cause the SCBS R system to operate.
xDriving on a steep slope.
xWheel blocks.
xHanging curtains, gate poles such as at toll gates and railroad crossing.
xWhen travelling near objects such as foliage, barriers, vehicles, walls, and fences along
a road.
xWhen driving off-road in areas where there is grass and forage.
xWhen passing through low gates, narrow gates, car washing machines, and tunnels.
xA towing bar is installed or a trailer is connected.
x(Manual transaxle)
If the vehicle is stopped by the Smart City Brake Support (SCBS) operation and the clutch
pedal is not depressed, the engine stops.
xThe Smart City Brake Support (SCBS) warning indication (amber) turns on when the
system has a malfunction.
Refer to Warning Lights on page 4-39.
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xWhen warnings and messages, such
as a dirty windscreen, related to the
Forward Sensing Camera (FSC) are
being displayed in the centre display.
xAlthough 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 SBS
system.
xObjects on the road at the entrance to
a curve (including guardrails and
snow banks).
xA vehicle appears in the opposite lane
while cornering or rounding a curve.
xWhen crossing a narrow bridge.
xWhen passing under a low gate or
through a tunnel or narrow gate.
xWhen entering an underground
parking area.
xMetal objects, bumps, or protruding
objects on the road.
xIf you suddenly come close to a
vehicle ahead.
xWhen driving in areas where there is
high grass or forage.
xTwo-wheeled vehicles such as
motorbikes or bicycles.
xPedestrians or non-metallic objects
such as standing trees.
xWhen the system operates, the user is
notified by the active driving display.
xThe SBS warning indication (amber)
turns on when the system has a
malfunction.
Refer to Taking Action on page 7-41.
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NOTE
If the SBS system operation is turned off,
the Smart City Brake Support (SCBS)
system operation is turned off
simultaneously.
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NOTE
xUnder 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.
xThe 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.
xVehicles ahead with low vehicle
height and thus less area for
reflecting radio waves.
xVisibility is reduced due to a vehicle
ahead casting off water, snow, or
sand from its tyres and onto your
windscreen.
xThe boot/luggage compartment is
loaded with heavy objects or the rear
passenger seats are occupied.
xIce, snow, or soiling is on the front
surface of the front emblem.
xDuring inclement weather such as
rain, snow, or sand storms.
xWhen driving near facilities or
objects emitting strong radio waves.
xUnder the following conditions, the
radar sensor (front) may not be able to
detect vehicles ahead or obstructions.
xThe beginning and end of a curve.
xRoads with continuous curves.
xNarrow lane roads due to road
construction or lane closures.
xThe vehicle ahead enters the radar
sensor's blind spot.
xThe vehicle ahead is running
abnormally due to accident or
vehicle damage.
xRoads with repeated up and down
slopes
xDriving on poor roads or unpaved
roads.
xThe distance between your vehicle
and the vehicle ahead is extremely
short.
xA vehicle suddenly comes close such
as by cutting into the lane.
xTo prevent incorrect operation of the
system, use tyres of the same specified
size, manufacturer, brand, and tread
pattern on all 4 wheels. In addition, do
not use tyres with significantly different
wear patterns or tyre pressures on the
same vehicle (Including the temporary
spare tyre).
xIf the battery power is weak, the system
may not operate correctly.
xIf the vehicle is driven on a road with
little traffic 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.
xThe 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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xUnder extremely hot or cold weather conditions.
xThe vehicle is driven on bumps, inclines, gravel, or grass covered roads.
xAnything 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.
xThe vehicle is driven in heavy rain or in road conditions causing water-splash.
xA commercially-available wing pole or an aerial for a radio transmitter is installed to
the vehicle.
xThe vehicle is moving towards a tall or square curbstone.
xAn obstruction is too close to the sensor.
xObstructions under the bumper may not be detected. Obstructions that are lower than the
bumper or thin which may have been initially detected may no longer be detected as the
vehicle approaches more closely to the obstruction.
xThe following types of obstructions may not be detected:
xThin objects such as wire or rope
xThings which absorb sonic waves easily such as cotton or snow
xAngular shaped objects
xVery tall objects, and those which are wide at the top
xSmall, short objects
xAlways have the system inspected at an expert repairer (we recommend an Authorised
Mazda Repairer) if any shock is applied to the bumpers, even in a minor accident. If the
sensors are deviated, they cannot detect obstructions.
x(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 expert
repairer (we recommend an Authorised Mazda Repairer).
x(Without front sensor and front corner sensor)
The system may have a malfunction if the beep does not operate. Consult an expert
repairer (we recommend an Authorised Mazda Repairer).
x(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 indicator light flashes. Consult an expert repairer (we
recommend an Authorised Mazda Repairer).
xThe beeper which indicates a system malfunction 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.
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R Q
3 U H V V W K H V Z L W F K D J D L Q W R V W R S W K H R S H U D W L R Q
Indicator light
2 S H U D W L R Q F R Q G L W L R Q V
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NOTE
x(Automatic transaxle vehicle)
The detection indicator and buzzer of the front sensors/front corner sensors do not
operate when the selector lever is in the P position.
xThe detection indicator and buzzer sound do not activate when the parking brake is
applied.
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