2019 MAZDA MODEL 3 HATCHBACK brake

CAUTION
In the following cases, turn the system off
to prevent an unexpected 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.
See the next page on how to turn off the
system.
Refer to Stopping the Smart Brake
Support (SBS) System Operation on page
4-155.
Operation conditions
The SBS operates when all of the
following conditions are met.
The ignition i s switched ON.
The SBS is on.
The i-ACTIVSENSE warning
indication/warning light is not turned
on.
(Object is vehicle ahead)
The vehicle speed is about 4 km/h (2
mph) or higher.
(Object is a pedestrian or bicycle)
The vehicle speed is between about 10
to 80 km/h (6.2 to 50 mph).
The DSC does not operate.
NOTE
Under the following conditions, the SBS
may not operate.
If there is the possib ility of hitting only
a part of a vehicle or obstruction
ahead.
You are driving your vehicle at the
same speed as the vehicle ahead.
When the driver deliberately performs
driving operations (accelerator
operation, steering wheel operation).
The accelerator pedal is depressed
abruptly.
The brake pedal is being depressed.
The steering wheel is being operated.
The selector lever is being shifted.
The turn signal lever is being
operated.
When warnings and messages, such
as a dirty windshield, related to the
Forward Sensing Camera (FSC) or
front radar sensor are being displayed
on the multi-information display.
The SBS may operate under the
following conditions.
There is an object in the road at the
entrance to a curve (including
guardrails and snow banks).
Passing an approaching vehicle while
rounding a curve.
When crossing a narrow bridge, and
passing through low gates, narrow
gates, car washing machines, or
tunnels.
When passing through a toll gate.
When entering an underground
parking area.
There is a metal object, bump, or a
protruding object on the road.
If you suddenly come close to a
vehicle ahead.
There is an animal, wall, or tree.
Notifies the driver with a warning
indication on the multi-information
display and the active driving display
(vehicles with active driving display)
while the system is operating.
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If a malfunction is detected or the
system temporarily stops the function
due to dirty sensors (such as radar
sensor or Forward Sensing Camera
(FSC)), the i-ACTIVSENSE warning
indication/warning light turns on and a
message is displayed on the
multi-information display and active
driving display.
On a manual transmission vehicle, the
engine stops if the clutch pedal is not
depressed when the vehicle is stopped by
the SBS brake operation.
If the vehicle is stopped by the SBS
brake operation and the brake pedal is
not depressed, the SBS brake is
automatically released after about 2
seconds.
▼ Collision Warning
When there is a possib
ility of a collision
with a vehicle ahead, the collision warning
sound is activated continuously and a
warning is displayed on the
multi-information display and the active
driving display.
Multi-information display
1. “BRAKE!” message is displayed

Active driving display
1. “BRAKE!” message is displayed
NOTE
The collision warning sound is activated
intermittently while the SBS brake or
brake assist (SBS brake assist) is
operating.
The operation distance and volume of
the collision warning can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
▼ Stopping the Smart Brake Support
(SBS) System Operation
The SBS can be changed to inoperable.
(If only the SBS is turned off)
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(If the SBS is turned off by operating
the i-ACTIVSENSE switch)
Refer to i-ACTIV
SENSE Switch on
page 4-85.
When turning off the SBS, the SBS OFF
indicator light turns on.
NOTE
If the engine is stopped with the SBS
turned off, the SBS becomes operational
when the engine is started the next time.
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Smart Brake Support[Rear] (SBS-R)
*
▼Smart Brake Support [Rear]
(SBS-R)
The SBS-R is a syste m which is designed
to reduce damage in the event of a
collision by operating the brake control
(SBS brake) when the system’s 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.
WARNING
Do not rely completely on the SBS-R
system:
 The SBS-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.
 To assure the correct operation of the
SBS-R, heed the following cautions.
 Do not apply a sticker to a rear
ultrasonic sensor and rear camera.
Otherwise, the rear ultrasonic sensor
and rear camera may not be able to
detect vehicles or obstructions which
could result in an accident.
 Do not disassemble a rear ultrasonic
sensor and rear camera.
 If cracks or damage caused by flying
gravel or debris is visible around a rear
ultrasonic sensor and rear camera,
stop using the SBS-R 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
around an ultrasonic sensor, the
system may operate unnecessarily and
cause an unexpected accident.
Refer to Stopping the Smart Brake
Support [Rear] (SBS-R) System
Operation on page 4-159.
 Consult an Authorized Mazda Dealer
for rear bumper replacement.
Do not modify the suspension:
If the vehicle height or inclination is
changed, the SBS-R system may not
operate correctly because it cannot detect
obstructions correctly.
When Driving
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Do not apply a strong force to a rear
ultrasonic sensor and rear camera:
When washing the vehicle, do not spray
highly pressurized water against a rear
ultrasonic sensor and rear camera, 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 SBS-R system to not
operate normally, or it could operate
unnecessarily.
CAUTION
When driving
off-road in areas where
there is grass or foliage, it is
recommended that the SBS-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 with significantly
different wear patterns on the same
vehicle. Otherwise, the SBS-R system may
not operate normally.
 If ice or snow is stuck on the rear
ultrasonic sensor and rear camera 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
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 SBS-R may or may not
operate.
The SBS-R system will operate under the
following conditions.
The engine is running.
The shift lever (manual transmission
vehicle) or the selector lever
(automatic transmission vehicle) is in
the R (reverse) position.
The slope is less than 5 %.
i-ACTIVSENSE warning indication/
warning light is no t displayed in the
multi-information display.
The vehicle speed is between about 2
to 8 km/h (2 to 4 mph).
The SBS-R is not turned off.
The DSC is not malfunctioning.
In the following cases, the rear
ultrasonic sensor and rear camera
cannot detect obstructions and the
SBS-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.
The obstruction is small.
The obstruction is thin such as a
signpost.
The surface of the obstruction is not
pointed vertically relative to the
vehicle.
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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 rear
ultrasonic sensor and rear camera
cannot detect obstructions correctly and
the SBS-R may not operate.
Something is stuck on the bumper
near a rear ultrasonic sensor.
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 a rear ultrasonic
sensor.
The orientation of a rear ultrasonic
sensor has deviated for reasons such
as a collision.
The vehicle is affected by other sound
waves such as the horn, engine noise,
ultrasonic sensor of another vehicle.
In the following cases, a rear ultrasonic
sensor and rear camera may detect
something as a target obstruction which
could cause the SBS-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 trailer is connected.
A bright light source such as sunlight
hits the rear camera.
The surroundings are dark.
An exterior accessory such as a
bicycle carrier is installed around the
rear sonar.
(Manual transmission)
If the vehicle is stopped by the SBS-R
operation and the clutch pedal is not
depressed, the engine stops.
When the system operates, the user is
notified by the multi-information
display.
The collision warning beep sounds
intermittently while the SBS-R brake is
operating.
If the vehicle is stopped by the SBS-R
operation and the brake pedal is not
depressed, displaying in meter
“Emergency Braking Activated. Depress
Brake Pedal to Hold Stop”, after about
2 seconds and the SBS-R brake is
automatically released.
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▼Collision Warning
If there is a possibility of a collision, the
collision warning sound is activated
continuously and a warning is displayed
on the active driving display and the
multi-information display.
Multi-information display
1. “BRAKE!” message is displayed

Active driving display
1. “BRAKE!” message is displayed
▼Stopping the Smart Brake Support
[Rear] (SBS-R) System Operation
The SBS-R can be changed to inoperable.
(If only the SBS-R is turned off)
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(If the SBS-R is turned off by
operating the i-ACTIVSENSE switch)
Refer to i-ACTIVSENSE Switch on
page 4-85.
When turning off the SBS-R, the SBS
OFF indicator light turns on.
When the engine is restarted, the system
becomes operational.
NOTE
When the SCB-R system is set to
inoperable, Smart Brake Support [Rear
Crossing] (SBS-RC) are also set to
inoperable.
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Smart Brake Support[Rear Crossing]
(SBS-RC)
*
▼ Smart Brake Support [Rear
Crossing] (SBS-RC)
The SBS-RC is a system designed to assist
the driver in avoiding collisions and to
reduce damage in the e
vent of a collision
by applying the brakes if there is the
possibility of collision with a vehicle
approaching from the rear while you are
reversing out of parking space.
The SBS-RC system detects vehicles
approaching from the rear left and right
sides of the vehicle, and the rear of the
vehicle while the vehicle is being reversed
out of a parking space, the system reduces
damage in the event of a collision by
operating the brake control when the
system determines that a collision is
unavoidable.
SBS-RC operation
1. The SBS-RC system operates when the
shift lever (manual transmission) or the
selector lever (auto matic transmission)
is shifted to the reverse (R) position.
2. If there is the poss ibility of a collision
with an approaching vehicle, the
SBS-RC system applies brake and
displays “BRAKE!” on the active
driving display and the
multi-information display.
WA R N I N G
Always check the surrounding area visually
before actually putting the vehicle in
reverse:
The system is only designed to assist you in
backing out of the lot when putting the
vehicle in reverse. Due to certain limitations
with the operation of this system, the
SBS-RC system may not operate brake or it
might be delayed even though a vehicle is
behind your vehicle. Always make it your
responsibility as a driver to check the rear.
Do not rely completely on the SBS-RC
system:
 The SBS-RC 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 SBS-RC system operates in response
to a vehicle. The system does not operate
in response to obstructions such as a
wall, pedestrians, 2-wheeled vehicles, or
animals.
When Driving
i-ACTIVSENSE
4-160*Some models.
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To assure the correct operation of the
SBS-RC, heed the following cautions.
Do not apply a sticker to a rear radar and
rear camera. Otherwise, the rear radar
and rear camera may not be able to
detect vehicles or obstructions which
could result in an accident.
 Do not disassemble a rear radar and rear
camera.
 If cracks or damage caused by flying
gravel or debris is visible around a rear
radar and rear camera, stop using the
SBS-RC 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 around an ultrasonic sensor, the
system may operate unnecessarily and
cause an unexpected accident.
Refer to Stopping the Smart Brake
Support [Rear Crossing] (SBS-RC) System
Operation on page 4-164.
 Consult an Authorized Mazda Dealer for
rear bumper replacement.
Do not modify the suspension:
If the vehicle height or inclination is
changed, the SBS-RC system may not
operate correctly because it cannot detect
obstructions correctly.Do not apply a strong force to a rear radar
and rear camera:
When washing the vehicle, do not spray
highly pressurized water against a rear
radar and rear camera, 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 SBS-RC system to not operate
normally, or it could operate unnecessarily.
NOTE
The SBS-RC system will operate under
the following conditions.
The engine is running.
The shift lever (manual transmission
vehicle) or the selector lever
(automatic transmission vehicle) is in
the R (reverse) position.
i-ACTIVSENSE warning indication/
warning light is no t displayed in the
multi-information display.
The vehicle speed is under about 10
km/h (6 mph).
The vehicle speed of an approaching
vehicle is about 3 km/h (2 mph) or
faster.
The SBS-R is not turned off.
The DSC is not malfunctioning.
In the following cases, the
i-ACTIVSENSE warning indication/
warning light turns on and operation of
the system is stopped. If the
i-ACTIVSENSE warning indication/
warning light remains illuminated, have
the vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Some problem with the system
including the SBS-RC system.
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