sensor MAZDA MODEL 6 2021 Service Manual

Mazda Radar Cruise Control with Stop & Go function(MRCC with Stop & Go function)
*
The MRCC with Stop & Go function system is designed to maintain headway control*1
with a vehicle ahead according to your vehicle's speed using a radar sensor (front) to detect
the distance to the vehicle ahead and a preset vehicle speed wi thout you having to 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 such as if the vehicle
ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a sufficient distance between the vehicles.
If the vehicle ahead stops while you are following behind it, y our vehicle will stop and be
held stopped automatically (stop hold control), and headway con trol will resume when you
resume driving the vehicle such as by pressing the RES switch.
Also refer to the following befo re using the MRCC with Stop & G o function.
AUTOHOLD (page 4-105)
Forward Sensing Camera (FSC) (page 4-215)
Radar sensor (front) (page 4-220)
WA R N I N G
Do not rely completely on the MRCC with Stop & Go function:
The MRCC with Stop & Go function system has detection limitations depending on the type of
vehicle ahead and its conditions, the weather conditions, and the road conditions.
Additionally, the system may be unable to dece lerate sufficiently to avoid hitting the vehicle
ahead if the vehicle ahead applies the brakes sudd enly or another vehicle cuts into the driving
lane, which could result in an accident.
Always drive carefully and verify the surroundi ng conditions and depress the brake pedal or
accelerator pedal while keeping a safer distance from vehicles ahead or on-coming vehicles.
Do not use the MRCC with Stop & Go function system in the following locations, using the
MRCC with Stop & Go function system at the following locations may result in an unexpected
accident:
 General roads other than high ways (Driving under these conditions using the MRCC with
Stop & Go function system is not possible.)
 Roads with sharp curves and where vehicle
traffic is heavy and there is
insufficient space
between vehicles.
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NOTE
The setting speed can be changed by
operating the SET
switch or SET
switch during stop hold control.
When accelerating using the SET
switch while in headway control, the set
vehicle speed can be adjusted but
acceleration is not possible. If there is
no longer a vehicle ahead, acceleration
continues until reaching the set vehicle
speed. For the set vehicle speed, check
the set vehicle speed indication in the
display.
When depressing the accelerator pedal,
the inter-vehicle distance indication in
the display changes to the white-line
indication.
Canceling the system
When the following operations are
performed, the MRCC with Stop & Go
function system is canceled, and the
MRCC with Stop & Go function set
indication (green) sw itches to the MRCC
with Stop & Go function main indication
(white) at the same time.
The OFF/CANCEL switch is pressed.
The brake pedal is depressed.
The parking brake is applied.
The selector lever is in the P (Park), N
(Neutral), or R (Reverse) position.

Under the following conditions, the
MRCC with Stop & Go function cancel
indication is displayed in the
multi-information display and a single
beep sound is heard.
The DSC has operated.
The Smart Brake Su pport (SBS) has
operated.
The Smart City Brake Support
[Forward] (SCBS F) or Advanced Smart
City Brake Support (Advanced 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.
Any of the doors is opened.
The driver's seat belt is unfastened.
The parking brake 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 swi tch 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/CANCE L switch 2 times
while the MRCC with Stop & Go function
system is operating to switch off the
system.
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Smart City Brake Support [Reverse] (SCBS R)*
The SCBS R is a system which is designed to reduce damage in the event of a collision by
operating the brake control (SCBS brake) when the system’s ultr asonic sensors detect an
obstruction at the rear of the vehicle while driving at a speed of about 2 to 8 km/h (2 to 4
mph) and the system determines that a collision is unavoidable.
Reverse Ultrasonic sensor (rear)
WA R N I N G
Do not rely completely on the SCBS R system:

The SCBS R system is only designed to reduce damage in the event of a collision. Over
reliance on the system leading to the accel erator pedal or brake pedal being mistakenly
operated could result in an accident.
 To assure the correct operation of the SCBS R, heed the following cautions.
 Do not apply a sticker to an ultrasonic sens or (rear) (including transparent stickers).
Otherwise, the ultrasonic sensor (rear) may no t be able to detect vehicles or obstructions
which could result in an accident.
 Do not disassemble an ultrasonic sensor (rear).
 If 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 Authorized Mazda Dealer. If the vehi cle 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 Supp ort [Reverse] (SCBS R) System Operation on
page 4-185.
 Consult an Authorized Mazda Dealer for rear bumper replacement.
Do not modify the suspension:
If the vehicle height or inclination is change d, the SCBS R system may not operate correctly
because it cannot detect obstructions correctly.
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Do not apply a strong force to an ultrasonic sensor (rear):
When washing the vehicle, do not spray highly pressurized water against an ultrasonic sensor
(rear), or rub it strongly. In addition, do no t hit the rear bumper forcefully when loading and
unloading cargo Otherwise, the sensors may no t detect obstructions correctly which could
cause the SCBS R system to not operate normally, or it could operate unnecessarily.
CAUTION
 When driving off-road in areas where there is gr ass or foliage, it is recommended that the
SCBS R system be turned off.
 Always use tires of the specified size and the same manufacturer, brand, and tread pattern
on all 4 wheels. In addition, do not use tires wi th significantly different wear patterns on the
same vehicle. Otherwise, the SCBS R system may not operate normally.
 If ice or snow is stuck on the ultrasonic sensors (rear) they may not be able to detect
obstructions correctly depending on the condit ions. In such cases, the system may not be
able to perform controls correctly. Always dr ive carefully and pay attention to the rear of
the vehicle.
NOTE
The vehicle posture changes depending on the accelerator pedal, brake pedal and
steering wheel operations, which could make it difficult for the system to recognize an
obstruction, or it could facilitate unnecessary detection. In such cases, the SCBS R may or
may not operate.
The SCBS R system will operate under the following conditions.
The engine is running.
The selector lever is in the R (reverse) position.
“Smart City Brake Support Reverse Malfunction” is not displayed in the
multi-information display.
The vehicle speed is between about 2 to 8 km/h (2 to 4 mph).
The SCBS R is not turned off.
The DSC is not malfunctioning.
The 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.
In the following cases, the ultrasonic sensors (rear) cannot detect obstructions and the
SCBS R may not operate.
The height of the obstruction is low such as low walls or trucks with low loading
platforms.
The height of the obstruction is high such as trucks with high loading platforms.
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The obstruction is small.
The obstruction is thin such as a signpost.
The obstruction is positioned away from the center of the vehicle.
The surface of the obstruction is not pointed vertically relative to the vehicle.
The obstruction is soft such as a hanging curtain or snow stuck to a vehicle.
The obstruction is shaped irregularly.
The obstruction is extremely close.
In the following cases, the ultrasonic sensors (rear) cannot detect obstructions correctly
and the SCBS R may not operate.
Something is stuck on the bumper near an ultrasonic sensor (rear).
The steering wheel is turned sharply, or the brake or accelerator pedal is operated.
There is another obstruction near one obstruction.
During inclement weather such as rain, fog and snow.
High or low humidity.
High or low temperatures
Strong winds.
The path of travel is not flat.
Heavy luggage is loaded in the luggage compartment or on the rear seat.
Objects such as a wireless antenna, fog light, or illuminated license plate is installed
near an ultrasonic sensor (rear).
The orientation of an ultrasonic sensor (r ear) has deviated for reasons such as a
collision.
The vehicle is affected by other sound wave s such as the horn, engine noise, ultrasonic
sensor of another vehicle.
In the following cases, an ultrasonic sensor (rear) may detect something as a target
obstruction which could cause the SCBS R system to operate.
Driving on a steep slope.
Wheel blocks.
Hanging curtains, gate poles such as at toll gates and railroad crossing.
When traveling near objects such as foliage, barriers, vehicles, walls, and fences along
a road.
When driving off-road in areas where there is grass and forage.
When passing through low gates, narrow gates, car washing machines, and tunnels.
A towing bar is installed or a trailer is connected.
When the system operates, the user is notified by the multi-information display.
The Smart City Brake Support (SCBS) warning indication (amber) turns on when the
system has a malfunction.
Refer to Taking Action on page 7-35.
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Smart Brake Support(SBS)
*
The SBS system alert s 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 i s 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 sensor (fr ont) and the Forward
Sensing Camera (FSC) determines that a
collision is unavoidable, the automatic
brake control is p erformed to reduce
damage in the event of a collision.
In addition, w hen the driver depresses the
brake pedal, the brake s 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 event 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 pedal 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.
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.
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When warnings and messages, such
as a dirty windshield, related to the
Forward Sensing Camera (FSC) 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 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
notified by the multi-information
display.
If there is a problem with the SBS
system, a message is displayed in the
multi-information display. Check the
center display to ver ify the problem and
then have your vehicle inspected by an
Authorized Mazda Dealer.
Refer to Message Indicated on Display
on page 7-43.
▼ Collision Warning
If there is the possibility of a collision with
a vehicle ahead, the beep sounds
continuously and a warning is indicated in
the multi-information display and the
active driving display.
▼Stopping The Smart Brake Support
(SBS) System Operation
The SBS system can be temporarily
deactivated.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
When the SBS system is turned off, the
SBS OFF indicator light turns on.
When the engine is restarted, the system
becomes operational.
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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360° View Monitor*
The 360° View Monitor consists of the following functions which assist the driver in
checking the area surrounding the vehicle using various indicat ions in the center display and
a warning sound while the vehicle is being driven at low speeds or while parking.
To p v i e w
The top view displays an image of the vehicle from directly abo ve on the center display
by combining the images taken fro m the 4 cameras set on all sides of the vehicle. The top
view displays on the right side of the screen when the front vi ew or rear view screen is
being displayed. The top view assists the driver in checking th e area surrounding the
vehicle when the vehicle is m oving forward or in reverse.
Front view/front wide view
The image from the front of the vehicle is displayed on the cen ter display.
The view from the fron t assists the driver in checking the fron t of the vehicle by
displaying guide lines on the displayed image taken from the fr ont of the vehicle.
Side view
The images taken from the front left and right sides of the vehicle are displayed on the
center display.
The side view assists the driver in checking the front sides of the vehicle by displaying
guide lines on the displayed image taken from the front left and right sides of the vehicle.
Rear view/rear wide view
The image from the rear of the vehicle is displayed on the cent er display.
The image from the rear assists t he driver in checking the rear of the vehicle by displaying
guide lines on the displayed image taken from the rear of the v ehicle.
Parking sensor
If there are any obstructions near the vehicle while the top view/side view is displayed, an
obstruction detection indication on the center display turns on .
The parking sensors use ultrasonic sensors to detect obstructio ns around the vehicle when
the vehicle is driven at low speeds, such as during garage or p arallel parking, and notifies
the driver of the approximate dis tance from the vehicle to the surrounding obstruction
using sound and an obstruction detection indication.
Refer to Parking Sensor System on page 4-248.
Rear Cross Traffic Alert (RCTA)
If there is the possibility of a collision with an approaching vehicle while the rear view/
rear wide view is displayed, a warning is displayed on the cent er display.
The Rear Cross Traffic Alert (RCTA) uses radar sensors (rear) t o detect vehicles
approaching from the rear left a nd right sides of the vehicle, and it assists the driver in
checking the rear of the vehicle while reversing by flashing th e Blind Spot Monitoring
(BSM) warning lights and ac tivating the warning sound.
Refer to Rear Cross Traffic Alert (RCTA) on page 4-146.
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360°View Monitor Range
: Cameras
: Ultrasonic sensors
: Radar sensors (rear)
WARNING
Always confirm the safety of the area around the vehicle with the mirrors and directly with
your eyes when driving.
The 360°View Monitor is an auxiliary device which assists the driver in checking the safety of
the area around the vehicle.
The shooting range of the cameras and detection range of the sensors are limited. For
example, the areas in black at the front and rear of the vehicle image and the seams where
each of the camera images merge are blind spots where an obstruction may not be visible. In
addition, the extended vehicle width lines and pr ojected vehicle path lines are only to be used
as references, and the images on the scree n may differ from the actual conditions.
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Screen operation/icon
WA R N I N G
Always stop the vehicle when adjusting the 360°View Monitor image quality.
Do not adjust the 360°View Monitor image quality while driving. If you adjust the 360° View
Monitor image quality (such as brightness, contra st, tone, and color density) while driving, it
could lead to an unexpected accident.
(Display example)
Display/Icon Content
View status iconIndicates which image is displayed among the fr ont view/front
wide view/side view/rear view/rear wide view.
Parking sensor status icon Indicates that the parking sensor has a problem or it is switch‐
ed off.
Rear Cross Traffic Alert (RCTA) status
icon Indicates that the radar sensor (rear) has a problem or it is
turned off.
Switch camera icon
Each time the screen is touched, the display screen switches.
Setting icon The image quality for the 360°View Monitor can be a djusted.
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