brake light MAZDA MODEL CX-9 2020 (in English) Service Manual

Trailer Stability Control(TSC)
If the vehicle sways while being driven
and towing a trailer, the Trailer Stability
Control (TSC) auto matically controls
braking and engine torque to suppress the
swaying and enhance vehicle stability.
The Trailer Stability Control (TSC) is
operable at a vehicle speed of about 65
km/h (40 mph) or more.
When the Trailer Stab ility Control (TSC)
operates while driving the vehicle, the
TCS/DSC indicator light flashes.
Refer to TCS/DSC Indicator Light on page
4-102.
WA R N I N G
Do not rely solely on the Trailer Stability
Control (TSC)
Assured vehicle stability is limited even if
the Trailer Stability Control (TSC) is
operating. Drive carefully to prevent
accidents.
In particular, if the TCS/DSC indicator light
is flashing, drive the vehicle carefully as it is
in a less stable condition and could sway
more easily. Drive with caution and in
accordance with the road, vehicle and
trailer conditions.
CAUTION
 The Trailer Stability Control (TSC) may
not operate correctly unless the
following are observed:
 Use tires of the correct size
specified for
your Mazda on all four wheels.
 Use tires of the same manufacturer,
brand and tread pattern on all four
wheels.
 Do not mix worn tires.
 The Trailer Stability Control (TSC) may
not operate correctly when tire chains
are used or a temporary spare tire is
installed because the tire diameter
changes.
NOTE
The Trailer Stability Control (TSC) uses
the TCS/DSC functions. The Trailer
Stability Control (TSC) does not operate
if there is a malfunction in the TCS/DSC
(the TCS/DSC indicator light turns on).
When the Trailer Stability Control (TSC)
is operating, the brake lights may turn
on.
For information regarding trailer
towing, refer to Trailer Towing (U.S.A.
and Canada) on page 3-57.
When Driving
ABS/TCS/DSC/Trailer Stability Control (TSC)/Off-Road Traction Assist
4-103
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55

▼Pre-Crash Safety Technology
Pre-crash safety technology is designed to assi
st the driver in averting collisions or reduce
their severity in situations where they cannot be avoided.
Collision damage reduction in low vehicle speed range
Forward driving
Smart City Brake Support (SCBS).......................................................................... page 4-170
Advanced Smart City Brake Support (Advan ced SCBS)........................................ page 4-167
Collision damage reduction in medium/high speed range
Smart Brake Support (SBS)..................................................................................... page 4-173
▼ Camera and Sensors
Forward Sensing Camera (FSC)
The Forward Sensing Camera (FSC) detects la
ne indications and recognizes headlights,
taillights and city lights during nighttime driv ing. In addition, it also detects the vehicle
ahead, pedestrians, or obstructions. The following systems also use the Forward Sensing
Camera (FSC).
High Beam Control system (HBC)
Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS)
Traffic Sign Recognition System (TSR)
Mazda Radar Cruise Control wi th Stop & Go function (MRCC with Stop & Go function)
Advanced Smart City Brake Support (Advanced SCBS)
Smart City Brake Support (SCBS)
Smart Brake Support (SBS)
The Forward Sensing Camera (FSC) is installed at the top of the windshield near the
rearview mirror.
Refer to Forward Sensing Camera (FSC) on page 4-201.
Radar sensor (front)
The radar sensor (front) functions by detecti ng the radio waves reflected off a vehicle ahead
sent from the radar sensor. The following systems also use the radar sensor (front).
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function)
Distance Recognition Support System (DRSS)
Smart Brake Support (SBS)
The radar sensor (front) is mount ed behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-206.
When Driving
i-ACTIVSENSE
4-115
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55

During headway control travel, the system accelerates and decelerates your vehicle in
conjunction with the speed of the vehicle ahead. However, if it is necessary to accelerate
for a lane change or if the vehicle ahead brakes suddenly causing you to close in on the
vehicle rapidly, accelerate using the accelerator pedal or decelerate using the brake
pedal depending on the conditions.
While the MRCC with Stop & Go function system is in use, it does not cancel even if the
selector lever is operated and any intended engine braking does not occur. If deceleration
is required, lower the set speed or depress the brake pedal.
The sound of the automatic brakes operating may be heard, however, it does not indicate
a problem.
The brake lights turn on while the MRCC with Stop & Go function automatic braking is
operating.
▼Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go
function) Display Indication
The MRCC with Stop & Go function setting status and operation conditions are indicated
on the multi-information display
and the active driving display.
When Driving
i-ACTIVSENSE
4-143
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55

Another vehicle cuts into the driving lane.
▼Setting the System
The MRCC with Stop & Go function system op
erates when all of the following conditions
are met.
Vehicle speed is 0 km/h (0 mph) to 145 km/h (90 mph)
The MRCC with Stop & Go function is turned on.
The brake pedal is not depressed.
The parking brake is released (Electric Parki ng 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.
The selector lever is in the drive (D) position or manual (M) position (manual mode).
NOTE
In the following cases, the MRCC with Stop & Go function system is canceled when the
vehicle is traveling at 30 km/h (20 mph) or less and “Mazda Radar Cruise Control
disabled under 30 km/h (20 mph)” is displayed in the multi-information display.
The Forward Sensing Camera (FSC) cannot detect target objects (There is problem
with the Forward Sensing Camera (FSC) or windshield is dirty).
There is a problem with the stop hold control function.
There is a problem with the Electric Parking Brake (EPB).
It may not be possible to set the MRCC with Stop & Go function system directly after
starting the engine, while the DSC operation is being checked.
Turning on the system
CANCEL switch RES switch
OFF switch
switch switch
MODE switch
SET- switch
SET+ switch
When Driving
i-ACTIVSENSE
4-146
CX-9_8HT8-EA-19I_Edition2_old
2019-9-24 13:14:55

▼Stop Hold Control
While in headway control using the MRCC wi
th Stop & Go function system, your vehicle
will stop when a vehicle ahead stops. When the vehicle is stopped and the stop hold control
operates, the MRCC with Stop & Go function indicator light turns on.
NOTE
If the MRCC with Stop & Go function system is canceled during stop hold control, the
vehicle is held in its stopped position. The stop hold control can be canceled by
performing one the following actions.
Press the accelerator pedal and resume driving the vehicle.
While forcefully depressing the brake, switch the MRCC with Stop & Go function
system off.
The parking brake is automatically applied and the vehicle is held in its stopped position
when 10 minutes have elapsed since the stop hold control operated. At this time, the
MRCC with Stop & Go function system is canceled.
The brake lights turn on during stop hold control.
To resume driving
After the vehicle ahead starts moving while yo ur vehicle is stopped under stop hold control,
press the RES switch or depress the accelerator pedal to cancel the stop hold control and
resume 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 MRCC with Stop & Go function is te mporarily canceled during stop hold control,
you cannot resume driving by pressing the RES switch when there are no vehicles in front
of your vehicle. Depress the accelerator pedal and resume driving the vehicle.
If the vehicle ahead starts moving within 3 seconds after your vehicle is stopped by the
stop hold control, headway control will re sume even if you do not resume driving your
vehicle, such as by depressing the accelerator pedal.
When Driving
i-ACTIVSENSE
4-152
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55

NOTE
When only a vehicle lane line (yellow) on
either the left or right is detected, the LAS
& LDWS indication on the active driving
display turns off.
Detection only on
either left or rightDetects on both
left and right sides
Detection only on
either left or rightDetects on both
left and right sides
(Gray) (White)
No indication
Active Driving Display
Multi-information Display
If the indication on the active driving
display has been turned off using the
personalization features, the LAS & LDWS
indication on the multi-information
display is displayed in gray and the system
goes on standby.
The LAS & LDWS goes on stand-by
status in the following cases:
The system cannot detect white (yellow)
lane lines.
The vehicle speed is less than about 60
km/h (37 mph).
The ABS/TCS is operating.
The TCS is turned off.
(If the TCS is turned off while the
system is operational, a warning beep is
heard and the system goes on standby.)
The vehicle is making a sharp curve.
The brake pedal is depressed.
The steering wheel is operated abruptly.
The width of a lane is excessively
narrow or wide.
NOTE
The LAS & LDWS does not operate until
the system detects white (yellow) lane
lines on either the left or right.
When the system detects a white
(yellow) lane line on one side only, the
system will not operate the steering
wheel operation assist and the warning
for the lane line on the side that is not
being detected. The steering wheel
operation assist and the warning is only
for a lane deviation on the side that is
being detected.
If the driver takes his or her hands off
the steering wheel (not holding the
steering wheel), the warning sound is
activated and an alert is indicated in the
multi-information display or the active
driving display.

Active Driving Display Multi-information Display
If the steering wheel is held lightly, or
depending on the road conditions, the
system may detect that you have
released the steering wheel (not holding
the steering wheel) even if you are
holding it, and display a message in the
multi-information display or the active
driving display.
When Driving
i-ACTIVSENSE
4-160
CX-9_8HT8-EA-19I_Edition2_old
2019-9-24 13:14:55

▼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 or the active
driving display.
NOTE
The operation distance and volume of the
collision warning can be changed. Refer
to Personalization Features on page
9-9.
▼Automatic Brake Op
eration Display
The automatic brake operation display is
indicated on the multi- information display
after the Advanced SCBS is operated.
NOTE
The collision warning beep sounds
intermittently while the Advanced SCBS
brake or brake assist (Advanced SCBS
brake assist) is operating.
If the vehicle is stopped by the Advanced
SCBS operation and the brake pedal is
not depressed, the warning beep sounds
1 time after about 2 seconds and the
Advanced SCBS brake is automatically
released.
▼ Stopping the Advanced Smart City
Brake Support (Advanced SCBS)
System Operation
The Advanced SCBS system can be
temporarily deactivated.
Refer to Personalization Features on page
9-9.
When the Advanced SCBS system is
turned off, the Smart City Brake Support
(SCBS) OFF indicator light turns on.

When the engine is restarted, the system
becomes operational.
NOTE
When the Advanced SCBS system is set to
inoperable, the Smart Brake Support
(SBS) are also set to inoperable.
When Driving
i-ACTIVSENSE
4-169
CX-9_8HT8-EA-19I_Edition2_old
2019-9-24 13:14:55

If you suddenly come close to a vehicle ahead.
2-wheeled vehicles, pedestrians, animals or standing trees.
Vehicle is driven with some of the tires having significant wear.
▼Smart City Brake Support (SCBS)
Indicator Light (Red)*
If the Smart City Brake Support (SCBS) is
operating, the indicator light (red) flashes.

▼
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.
NOTE
The operation distance and volume of the
collision warning can be changed. Refer
to Personalization Features on page
9-9.
▼Automatic Brake Operation
Display*
The automatic brake operation display is
indicated on the multi-information display
after the SCBS is operated.
NOTE
The collision warning beep sounds
intermittently while
the SCBS brake or
brake assist (SCBS brake assist) is
operating.
If the vehicle is stopped by the SCBS
operation and the brake pedal is not
depressed, the warning beep sounds 1
time after about 2 seconds and the SCBS
brake is automatically released.
▼ Stopping the Smart City Brake
Support (SCBS) System Operation
The SCBS system can be temporarily
deactivated.
Refer to Personalization Features on page
9-9.
When the SCBS system is turned off, the
Smart City Brake Support (SCBS) OFF
indicator light turns on.

When the engine is restarted, the system
becomes operational.
NOTE
When the SCBS system is set to
inoperable, the Smart Brake Support
(SBS) are also set to inoperable.
When Driving
i-ACTIVSENSE
4-172*Some models.
CX-9_8HT8-EA-19I_Edition2_old
2019-9-24 13:14:55

Smart Brake Support(SBS)
*
The SBS system alerts the driver of a
possible collision us ing a display and
warning sound if the radar sensor (front)
and the Forward Sensing Camera (FSC)
determine that there is 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 (front) and the Forward
Sensing Camera (FSC) determines that 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. (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.
When Driving
i-ACTIVSENSE
*Some models.4-173
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55

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.
If there is a problem with the SBS
system, a message is displayed in the
multi-information display. Check the
center display to verify 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 possibili
ty 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 Personalization Features on page
9-9.
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 opera tion is turned off,
the Smart City Brake Support (SCBS)
system operation is turned off
simultaneously.
When Driving
i-ACTIVSENSE
4-174
CX-9_8HT8-EA-19I_Edition2_old 2019-9-24 13:14:55