2020 MAZDA MODEL 3 HATCHBACK brake light

Inactive
Active (vehicle ahead)
Active (lane line)
If there is a problem with the TJA, a
message is displayed on the
multi-information display. Check the
details of the problem on the center
display and then have your vehicle
inspected by an Authorized Mazda Dealer.
Refer to If a Warnin g Light Turns On or
Flashes on page 7-27.
▼ Close Proximity Warning
If your vehicle rapidly closes in on the
vehicle ahead while you are traveling
under headway control, the warning sound
is activated and the brake warning is
indicated on the display. Keep a safe
distance between your vehicle and a
vehicle ahead.
1. “Depress Brake Pedal” message is
displayed
NOTE
In the following cases, the warnings and
brakes may not operate even if your
vehicle starts closing in on the vehicle
ahead.
You are driving your vehicle at the same
speed as the vehicle ahead.
Directly after the TJA operates.
Directly after the accelerator pedal is
released.
Another vehicle cuts into the driving
lane.
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▼Setting the System
Operation conditions
Headway control function
The TJA operates when all of th
e following conditions are met.
(Automatic transmission vehicle)
The vehicle speed is about 0 km/h (0 mph) to 145 km/h (90 mph).
The selector lever is in the D or M position (manual mode).
(Manual transmission vehicle)
The vehicle speed is about 30 km/h (19 mph) to 145 km/h (90 mph ).
The shift lever is in a position other than the R or N position.
The clutch pedal is not depressed.
The TJA is operating.
The headway control function of the Mazda Radar Cruise Control (MRCC) or Mazda
Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) is set to
operable (if it was set to inope rable, set it to operable using the personalization function).
The brake pedal is not depressed.
The parking brake is released (E lectric Parking Brake (EPB) indicator light is turned off).
There is no problem with the DSC.
All the doors are closed.
The driver's seat belt is fastened.

NOTE
(Automatic transmission vehicle)
Under the following conditions, the TJA cannot be used when the vehicle speed is 30 km/h
(19 mph) or slower.
There is a problem with the stop hold control function.
There is a problem with the Electric Parking Brake (EPB).
The TJA may not launch directly after the engine starts.

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After the operation, the steering assist operation may not operate for a period of 5
seconds at the most until the lane lines are detected or a vehicle ahead is recognized.

Turning off
When the TJA switch is pressed w hile the TJA is operating, the TJA turns off.
▼Shift-up/Shift-down Request Display
(Manual Transmission)
The shift-up or shift-down request display
might be displayed while the TJA is
operating. When this occurs, shift gears
because the gear position is not
appropriate.
Request Indication on display
Shift up Shift Up to a Higher Gear
Shift down Shift Do wn to a Lower Gear
NOTE
If the gears are not shifted up even
though the shift-up request indication is
displayed, load will be applied to the
engine and the TJA might be
automatically canceled or engine
damage could occur.
If the gears are not shifted down even
though the shift-down request indication
is displayed, the TJA might be
automatically canceled or engine
stalling could occur.
▼Stop Hold Control (Automatic
Transmission)
While in headway control using the TJA,
your vehicle will stop when a vehicle
ahead stops. When the vehicle is stopped
and the stop hold control operates, the TJA
indicator light turns on.
NOTE
Even if the TJA is temporarily canceled
during stop hold control, the vehicle is
held in its stopped position.
The parking brake is automatically
applied and the vehicle is held in its
stopped position when 10 minutes or
longer have passed since the stop hold
control operated. When this occurs, the
TJA is temporarily canceled.
The brake lights turn on during stop
hold control.

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Strong light is directed from the front of
the vehicle (such as sunlight, or
headlights (high-beam) of on-coming
vehicles).
▼ System Operation
When the ignition is switched ON, the
i-ACTIVSENSE status symbol (warning/
risk avoidance support system) (white)
turns on and the system goes on standby.
NOTE
If the i-ACTIVSENSE status symbol
(warning/risk avoidance support system)
(white) does not turn on, the system is
canceled using the i-ACTIVSENSE switch
or the personalization feature.
Operation conditions
When all of the following conditions are
met, the i-ACTIVSENSE status symbol
(warning/risk avoidance support system)
on the multi-in
formation display changes
from white to green and the system
becomes operational.
The vehicle speed is about 64 km/h (40
mph) or faster.
The system detects white (yellow) lane
lines.
NOTE
When the system does not detect a white
(yellow) lane line on one side only, the
system does not operate on the side that is
not being detected.
When temporarily canceling the system
The LAS goes on standby in the following
cases: The LAS opera tion is automatically
restored when the system's operation
conditions are met.
The system cannot detect white (yellow)
lane lines.
The vehicle speed is less than about 56
km/h (35 mph).
The turn signal lever is operated.
The accelerator pedal is depressed
abruptly.
The TCS/DSC is operating.
The DSC is turned off.
The steering wheel is operated.
The brake pedal is operated.
The function is temporarily stopped.
The LAS stops functioning in the
following cases:
The temperature in the forward sensing
camera (FSC) is high or low.
The windshield around the forward
sensing camera (FSC) is foggy.
The windshield around the forward
sensing camera (FSC) is blocked by an
obstruction, causing poor forward
visibility.
Strong light (such as sunlight, or
headlights (high-beam) of on-coming
vehicles) is directed at the forward
sensing camera (FSC).
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Smart Brake Support(SBS)
*
▼Smart Brake Support (SBS)
The SBS alerts the driver of a possible
collision using the wa
rning indications in
the display and a warning sound if the
front radar sensor and Forward Sensing
Camera (FSC) determine that there is the
possibility of a col lision with a vehicle
ahead, pedestrian, or a bicycle.
Furthermore, if 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 are
applied firmly and quickly to assist.
(Vehicles with Drive r Monitoring (DM))
When the SBS determi nes that the driver
is not paying attention to the road using
the driver monitoring camera and it
determines that there is the possibility of a
collision with an obstruction, the SBS
activates the collision warning earlier than
normal.
WA R N I N G
Do not rely completely on the SBS:
The SBS is only designed to reduce damage
in the event of a collision.
The ability to detect obstructions is limited
depending on the obstructions, weather
conditions, or traffic conditions. Over
reliance on the system leading to the
accelerator pedal or brake pedal being
mistakenly operated could result in an
accident.
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
4-157.
Operation conditions
The SBS operates when all of the
following conditions are met.
The ignition is 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 possibility of hitting only
a part of a vehicle or obstruction
ahead.
You are driving your vehicle at the
same speed as the vehicle ahead.
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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.
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.
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 di splay and the active
driving display.
Multi-information display
1. “BRAKE!” message is displayed

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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.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
When the SBS is canceled, the SBS OFF
indicator light turns on.
NOTE
When the ignition is switched OFF while
the SBS is canceled, the SBS is
automatically enabled
the next time the
ignition is switched ON.
Smart Brake Support
[Rear] (SBS-R)
*
▼Smart Brake Support [Rear]
(SBS-R)
The SBS-R is a system 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.
WA R N I N G
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.
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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.
i-ACTIVSENSE warning indication/
warning light is not 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.
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.
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