brake MAZDA MODEL 3 SEDAN 2019 Manual PDF

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 prob lem 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 7-26.
▼ 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 closin g in on the vehicle
ahead.
Directly after the TJA operates.
Directly after the accelerator pedal is
released.
Another vehicle cuts into the driving
lane.
When Driving
i-ACTIVSENSE
4-140
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

▼Setting the System
Operation conditions
Headway control function
The headway control function ope
rates when all of the following conditions are met.
(Automatic transmission vehicle)
The vehicle speed is about 0 km/h (0 mph) to 145 km/h (90 mph).
(Manual transmission vehicle)
The vehicle speed is about 30 km/h (19 mph) to 145 km/h (90 mph ).
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).
All the doors are closed.
The driver's seat belt is fastened.
(Automatic transmission vehicle)
The selector lever is in the D or M position (manual mode).
(Manual transmission vehicle)
The shift lever is in a position other than the R or N position .
The clutch pedal is not depressed.

NOTE
(Automatic transmission vehicle)
Under the following conditions, the TJA cannot be used when the vehicle speed is 30 km/h
(20 mph) or slower. In addition, a message, “Mazda Radar Cruise Control Disabled
Under 30 km/h (20mph)” is displayed in the multi-information display.
The forward sensing camera (FSC) cannot detect target objects (windshield is damaged
or dirty).
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.

When Driving
i-ACTIVSENSE
4-141
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

2. Adjust the vehicle speed to the desired setting using the accelerator pedal and press theRES switch up (SET+) or down (SET-) to start headway control.
The set speed is indicated on the display. At the same time, th e TJA standby indication
(white) changes to the TJA set indication (green).
3. The headway control is operable when all of the conditions fo r it to operate are met, or
the steering assist function is o perable when all of the conditions for it to operate are
met.
NOTE
If a vehicle ahead is detected while traveling at a constant speed, the vehicle-ahead
indication is displayed and headway control is performed. Additionally, when a vehicle
ahead is no longer detected, the vehicle-ahead indication turns off and the system
switches back to travel at constant speed.
The lowest possible speed which can be set on the TJA is 30 km/h (19 mph).
Headway control is not possible if the vehicle ahead is driving faster than your vehicle's
set speed. Adjust the system to the desired vehicle speed using the accelerator pedal.
When the ignition is switched OFF, the system status before it was turned off is
maintained. For example, if the ignition is switched OFF with the TJA operable, the TJA
remains operational the next time the ignition is switched ON.
When the TJA switch is pressed until the syst em switches to the cruise standby indication
(white) while the TJA is opera ting, the system switches to the cruise control function.
When the TJA is operating, the Lane-keep Assist System (LAS), Distance & Speed Alert
(DSA), and Smart Brake Support (SBS) also turns on automatically.
When the TJA switch is pressed while the Mazda Radar Cruise Control (MRCC) or the
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
system is operating, the TJA operates. In addition, when the MRCC switch is pressed
while the TJA is operating, the Mazda Radar Cruise Control (MRCC) or the Mazda
Radar Cruise Control with Stop & Go functi on (MRCC with Stop & Go function) system
operates.

Changing the set vehicle speed
(To accelerate/decelerate using the RES switch)
When the RES switch is pressed up (SET+), the vehicle accelerat es and when the RES
switch is pressed down (SET-), it decelerates.
When Driving
i-ACTIVSENSE
4-143
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

Press and release immediately: 1 km/h (1 mph)
Press and hold: 10 km/h (5 mph)
(To increase speed using accelerator pedal)
Depress the accelerator pedal an d press the RES switch up (SET+ ) or down (SET-) at the
desired speed. If the switch is not operated, the system return s to the set speed after you
release your foot from the accelerator pedal.
NOTE
The warnings and brake control do not operate while depressing the accelerator pedal.
(Automatic transmission vehicle)
The vehicle speed setting can be changed by operating the RES switch during stop hold
control.

Changing the distance between ve hicles during headway control
The distance-between-vehicles can be set to 4 levels; Long, med ium, short, and extremely
short distance.
The distance-between-vehicles is set to a shorter distance by p ressing the CANCEL switch
down. The distance-between-vehicles is set to a longer distance by pressing the CANCEL
switch up.
Distance-between-vehicles guide‐ line
(at 80 km/h (50 mph) vehicle speed) Indication on display
Indication on multi-information display Indication on active driving dis‐
play
*1
Long (about 50 m (164 ft))
Medium (about 40 m (131 ft))
When Driving
i-ACTIVSENSE
4-144
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

Distance-between-vehicles guide‐line
(at 80 km/h (50 mph) vehicle speed) Indication on display
Indication on multi-information display Indication on active driving dis‐
play
*1
Short (about 30 m (98 ft))
Extremely short (about 25 m (82 ft))
*1 Displays a pop-up image when the CANCEL switch is operated.
NOTE
The slower the vehicle speed, the shorter the distance between the vehicles.
When the ignition is switched to ACC or OFF, the set distance-between-vehicles is taken
over automatically even when the engine is started again.

The function is temporarily canceled.
Headway control function
When the following operations are performed, the headway contro l function is temporarily
canceled and the TJA set indication (green) changes to the TJA standby indication (white) at
the same time.
The CANCEL switch is pressed one time.
The brake pedal is depressed.
(Automatic transmission vehicle)
The selector lever is in the P, N, or R position.
(Manual transmission vehicle)
The shift lever is in the R position.

When Driving
i-ACTIVSENSE
4-145
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

In the following cases, the TJA cancel indication is displayed and a sound is activated one
time.
The DSC has operated.
The Smart Brake Support (SBS) has operated.
The vehicle is driven on a downslope for a long time.
There is a problem with the system.
The front radar sensor cannot detect target objects (during rai n, fog, snow or other
inclement weather conditions, or when the radiator grille is dirty).
The parking brake is applied.
Any of the doors is opened.
The driver's seat belt is unfastened.
(Automatic transmission vehicle)
The parking brake is automatical ly applied during stop hold control.
(Manual transmission vehicle)
The vehicle speed decreases below 25 km/h (15 mph).
The shift lever is in the neutral position for a certain period of time.
The clutch pedal is depressed for a certain period of time.
The engine has stalled.

Steering assist function
If any of the fo llowing conditions occurs, the steering assist function is temporarily
canceled.
White (yellow) lane lines cannot be detected or a vehicle ahead cannot be recognized.
CANCEL switch is pressed.
Your vehicle speed is more than about 64 km/h (40 mph).
The brake pedal is depressed.
The accelerator pedal is operated.
The turn signal lever is operated.
The vehicle is making a sharp curve.
The width of a lane is excessively narrow or wide.
The vehicle crosses a lane line.
(Automatic transmission vehicle)
The selector lever is in the P, N, or R position.
(Manual transmission vehicle)
The shift lever is in the R position.

In the following cases, the TJA cancel indication is displayed and a sound is activated one
time.
When Driving
i-ACTIVSENSE
4-146
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

The DSC has operated.
The ABS/TCS/DSC is operating.
The Smart Brake Support (SBS) has operated.
The parking brake is applied.
Any of the doors is opened.
The driver’s seat belt is unfastened.
The driver takes his/her hands off the steering wheel.
The vehicle is driven on a downslope for a long time.
The steering wheel is operated abruptly.
There is a problem with the system.
The temperature in the Forward Sensing Camera (FSC) is high or low.
The windshield around the Forwar d Sensing Camera (FSC) is foggy.
The windshield around the Forward Sensing Camera (FSC) is blocked by an obstruction,
causing poor forward visibility.
The front radar sensor cannot det ect target objects (during rain, fog, snow or other
inclement weather conditions, or when the radiator grille is dirty).
(Automatic transmission vehicle)
The parking brake is automatically applied during stop hold con trol.
(Manual transmission vehicle)
The vehicle speed decreases below 25 km/h (15 mph).
The shift lever is in the neutral position for a certain period of time.
The clutch is depressed for a certain period of time.
The engine has stalled.
NOTE
If you take your hands off the steering wheel (not holding the steering wheel), the warning
sound is activated and an alert is indicated on the multi-information display and the active
driving display.
Multi-information display
When Driving
i-ACTIVSENSE
4-147
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

▼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
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.

To resume driving
After the vehicle ahead starts moving
while your vehicle is stopped under stop
hold control, press the RE S switch or
depress the accelerator pedal to cancel the
stop hold control and start driving.
NOTE
When you resume driving by pressing
the RES switch, your vehicle does not
start moving until the distance between
your vehicle and the vehicle ahead
lengthens to the specified distance or
farther.
If the TJA is temporarily canceled,
depress the accelerator pedal and start
driving the vehicle. If the TJA is
temporarily canceled, you cannot
resume driving by pressing the RES
switch when there are no vehicles in
front of your vehicle.
If the vehicle ahead starts moving within
3 seconds after your vehicle is stopped
by the stop hold control, headway
control will continue even if you do not
resume driving your vehicle, such as by
depressing the accelerator pedal.

Vehicle departure information
If you do not resume driving within a few
seconds after the vehicle ahead starts
moving during stop hold control, the
multi-information display vehicle-ahead
indication flashes to urge the driver to
resume driving. If you do not resume
driving after the indicator light flashes, a
sound is activated to urge you to resume
driving.
When Driving
i-ACTIVSENSE
4-149
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

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).
System malfunction
If there is a problem w ith the system, the
i-ACTIVSENSE status symbol (warning/
risk avoidance suppo rt system) (white)
and the i-ACTIVSENSE warning
indication/warning light on the
multi-information di splay turns on and a
message is indicated.
Refer to i-ACTIVSENSE Status Symbol
(Warning/Risk Avoidance Support
System) on page 4-84.
▼ Steering Wheel Operation Assist
When the system determines that the
vehicle might be deviating from its lane,
the steering wheel operation assist
operates.
The system notifies
the driver of the
direction in which t he system provided
steering wheel operation assistance on the
multi-information di splay and the active
driving display
*.
Multi-information display
Active drivin g display*
When Driving
i-ACTIVSENSE
4-152*Some models.
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58

NOTE
When the driver operates the steering
wheel while the steering wheel operation
assist is operating, the steering wheel
operation assistance is canceled.
▼System Canceling
The LAS can be set to inoperable.
(If only the LAS is turned off)
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(If the LAS is turned off by operating
the i-ACTIVSENSE switch)
Refer to i-ACTIVSENSE Switch on
page 4-85.
NOTE
When the ignition is switched OFF, the
system status before
it was turned off is
maintained. For example, if the ignition is
switched OFF with th e LAS operable, the
LAS remains operationa l the next time the
ignition is switched ON.
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 collision 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 pe dal, the brakes are
applied firmly and quickly to assist.
(Vehicles with Driver Monitoring (DM))
When the SBS determines 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 obs truction, 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.
When Driving
i-ACTIVSENSE
*Some models.4-153
Mazda3_8HE9-EA-18K_Edition3 2018-11-21 14:31:58