2017 MAZDA MODEL 2 brake light

4–88
When Driving
ABS/TCS/DSC
*Some models.
Dynamic Stability
Control (DSC)
*
The Dynamic Stability Control (DSC)
automatically controls braking and engine
torque in conjunction with systems such
as ABS and TCS to help control side slip
when driving on slippery surfaces, or
during sudden or evasive manoeuvring,
enhancing vehicle safety.

Refer to ABS (page 4-86 ) and TCS
(page 4-87 ).

DSC operation is possible at speeds
greater than 20 km/h (12 mph).

The warning light turns on when the
system has a malfunction.
Refer to Warning Lights on page 4-38 .
WARNING
Do not rely on the Dynamic Stability
Control as a substitute for safe driving:
The Dynamic Stability Control (DSC)
cannot compensate for unsafe and
reckless driving, excessive speed,
tailgating (following another vehicle
too closely), and hydroplaning (reduced
tyre friction and road contact because
of water on the road surface). You can
still have an accident.
CAUTION
  The DSC may not operate correctly
unless the following are observed:
 


 Use tyres of the correct size
speci¿ ed for your Mazda on all
four wheels.
 


 Use tyres of the same
manufacturer, brand and tread
pattern on all four wheels.
 


 Do not mix worn tyres. 

 The DSC may not operate correctly
when tyre chains are used or a
temporary spare tyre is installed
because the tyre diameter changes.
TCS/DSC Indicator Light

This indicator light stays on for a few
seconds when the ignition is switched
ON. If the TCS or DSC is operating, the
indicator light À ashes.

If the light stays on, the TCS, DSC
or the brake assist system may have a
malfunction and they may not operate
correctly. Take your vehicle to an expert
repairer, we recommend an Authorised
Mazda Repairer.

4–89
When Driving
ABS/TCS/DSC
DSC OFF Indicator Light

This indicator light stays on for a few
seconds when the ignition is switched ON.
It also illuminates when the DSC OFF
switch is pressed and TCS/DSC is
switched off.
Refer to DSC OFF Switch on page 4-89 .

If the light remains illuminated and
the TCS/DSC is not switched off, take
your vehicle to an expert repairer, we
recommend an Authorised Mazda
Repairer. The DSC may have a
malfunction.
DSC OFF Switch
Press the DSC OFF switch to turn off the
TCS/DSC. The DSC OFF indicator light
in the instrument cluster will illuminate.


Press the switch again to turn the TCS/
DSC back on. The DSC OFF indicator
light will turn off.
NOTE
  When DSC is on and you attempt to
free the vehicle when it is stuck, or
drive it out of freshly fallen snow, the
TCS (part of the DSC system) will
activate. Depressing the accelerator
will not increase engine power and
freeing the vehicle may be dif¿ cult.
When this happens, turn off the TCS/
DSC.
  If the TCS/DSC is off when the
engine is turned off, it automatically
activates when the ignition is
switched ON.
  Leaving the TCS/DSC on will
provide the best traction.
  If the DSC OFF switch is pressed
and held for 10 seconds or more,
the DSC OFF switch malfunction
detection function operates and the
DSC system activates automatically.
The DSC OFF indicator light
turns off while the DSC system is
operative.
  (Vehicles with Smart City Brake
Support (SCBS))
 If the Smart City Brake Support
(SCBS) operates with the TCS/DSC
turned off, the TCS/DSC becomes
operational automatically.

4–103
When Driving
i-ACTIVSENSE
Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist 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 [Forward] (SCBS F) ............................................................... 4-155
Reverse driving
Smart City Brake Support [Reverse] (SCBS R) ............................................................... 4-161
Collision damage reduction in medium/high speed range
Smart Brake Support (SBS) .............................................................................................. 4-167
Camera and Sensors
Forward Sensing Camera (FSC)
The Forward Sensing Camera (FSC) detects lane indications and recognises headlights, tail
lights and city lights during nighttime driving. The following systems also use the Forward
Sensing Camera (FSC).
 


 High Beam Control System (HBC)



 Adaptive LED Headlights (ALH)



 Driver Attention Alert (DAA)



 Lane Departure Warning System (LDWS)



 Smart Brake Support (SBS)
The Forward Sensing Camera (FSC) is installed at the top of the windscreen near the
rearview mirror.
Refer to Forward Sensing Camera (FSC) on page 4-170 .
Radar sensor (front)
The radar sensor (front) functions by detecting the radio waves reÀ ected off a vehicle ahead
sent from the radar sensor. The following systems also use the radar sensor (front).
 


 Distance Recognition Support System (DRSS)



 Mazda Radar Cruise Control (MRCC)



 Smart Brake Support (SBS)
The radar sensor (front) is mounted behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-176 .

4–112
When Driving
i-ACTIVSENSE
CAUTION
Do not modify the suspension. If the vehicle height or the damping force of the
suspensions is changed, the LDWS may not operate correctly.
NOTE
  If your vehicle deviates from its traf¿ c lane, the LDWS operates (warning sound and
indicator light). Steer the vehicle adequately to drive the vehicle to the centre of the
lane.
  When the direction indicator lever is operated for a lane change, the LDWS warning
is automatically cancelled. The LDWS warning becomes operable when the direction
indicator lever is returned and the system detects the white or yellow lines.
  If the steering wheel, accelerator pedal, or brake pedal is operated abruptly and the
vehicle moves close to a white or yellow line, the system determines that the driver is
making a lane change and the LDWS warning is automatically cancelled.
  The LDWS may not operate during the period immediately after the vehicle has
deviated from its lane and the LDWS has operated, or the vehicle deviates from its
lane repeatedly within a short period of time.
  The LDWS does not operate if it does not detect the white or yellow lines of the traf¿ c
lane.

4–115
When Driving
i-ACTIVSENSE
Auto cancel warning
When the following operations are
performed, the LDWS determines that
the driver intends to make a lane change
and the LDWS warning is cancelled
automatically. The LDWS is enabled
automatically after the driver performs the
operation.
 


 The steering wheel is operated abruptly.



 The brake pedal is depressed abruptly.



 The accelerator pedal is depressed
abruptly.
 


 The direction indicator lever is operated
(after the direction indicator lever is
returned, the LDWS may not operate for
about 3 seconds which is the period of
time required to make a lane correction).

NOTE
After about 60 seconds have elapsed
with the direction indicator lever left
operating, the LDWS warning may
operate if the vehicle is close to a white
or yellow line.
Cancelling The System
Press the LDWS OFF switch to cancel the
LDWS. The LDWS OFF indicator light
turns on.


LDWS Warning
If the system determines that there is the
possibility of a lane departure, the LDWS
warning beep activates and the LDWS
warning light À ashes. Operate the steering
wheel appropriately and steer the vehicle
to the centre of the lane.
For vehicles equipped with the active
driving display, if there is the possibility of
a lane departure, the system indicates the
direction it determines that the vehicle is
deviating in the active driving display.
Indication on display

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When Driving
i-ACTIVSENSE
NOTE
  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 Mazda Radar Cruise Control (MRCC) system is in use, it does not cancel
even if the selector lever (automatic transaxle)/shift lever (manual transaxle) is
operated and any intended engine braking will not occur. If deceleration is required,
lower the vehicle speed setting or depress the brake pedal.
  The brake lights are illuminated while the Mazda Radar Cruise Control (MRCC)
automatic braking is operating, however, they may not be illuminated while the
vehicle is on a down slope at the set vehicle speed or travelling at a constant speed and
following a vehicle ahead.
  The Mazda Radar Cruise Control (MRCC) warning light (amber) illuminates when the
system has a malfunction.
 Refer to Warning Lights on page 4-38 .   The headway control operation can be cancelled and the system can be switched to
only cruise control. Refer to Cruise Control Function on page 4-145 .
Mazda Radar Cruise Control (MRCC) Display Indication
The setting status and operation conditions of the Mazda Radar Cruise Control (MRCC)
system are indicated in the active driving display.

Vehicle ahead display
MRCC Distance
between vehicle
display
MRCC Set vehicle speed

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When Driving
i-ACTIVSENSE
NOTE
  The Smart City Brake Support (SCBS) system will not operate if the driver is
deliberately performing driving operations (accelerator pedal and steering wheel).
  The Smart City Brake Support (SCBS) system will operate under the following
conditions.
 


 The engine is running.



 The Smart City Brake Support (SCBS) warning light (amber) does not illuminate.



 The vehicle speed is between about 4 to 30 km/h (2 to 18 mph).



 The Smart City Brake Support (SCBS) system is not turned off.



 The DSC is not malfunctioning. 

 The Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-
infrared laser beam and receiving the beam reÀ ected off the reÀ ector of the vehicle
ahead, and then using it for the measurement. Consequently, the Smart City Brake
Support (SCBS) may not operate under the following conditions:
 


 ReÀ ection of the laser is poor due to the shape of the vehicle ahead.



 The vehicle ahead is signi¿ cantly dirty.



 Under bad weather condition, such as rain, fog and snow.



 The window washer is being used or the windscreen wipers are not used when it's
raining.
 


 The windscreen is dirty.



 The steering wheel is turned completely left or right, or the vehicle is accelerated
rapidly and comes close to the vehicle ahead.
 


 Trucks with low loading platforms and vehicles with an extremely low or high
pro¿ le.




 Vehicles with certain shapes such as a vehicle carrier. 

 Under the following conditions, the Smart City Brake Support (SCBS) system may not
operate normally.
 


 Heavy luggage is loaded in the luggage compartment or on the rear seat.



 If there is the possibility of partial contact with a vehicle ahead.



 When driving on continuously curving roads, and entering and exiting exits.



 Elongated luggage or cargo is loaded onto installed roof rails and covers the laser
sensor.
 


 Exhaust gas from the vehicle in front, sand, snow, and water vapour rising from
manholes and grating, and water splashed into the air.
 


 When towing a malfunctioning vehicle.



 When driving with tyres having signi¿ cantly different wear.

4–159
When Driving
i-ACTIVSENSE
*Some models.
NOTE
  In the following cases, the laser sensor may inadvertently determine that there is a
vehicle ahead and the Smart City Brake Support (SCBS) system may operate.
 


 Objects on the road at the entrance to a curve.



 Vehicles passing in the opposite lane while making a curve.



 Metal objects, bumps, or protruding objects on the road.



 When passing through a toll gate equipped with a bar.



 When passing under a vinyl curtain or À ag.



 Plastic objects such as pylons.



 Two-wheeled vehicles, pedestrians, animals or standing trees. 

 (Manual transaxle)  If the vehicle is stopped by the SCBS operation and the clutch pedal is not depressed,
the engine stops.
  When the system operates, the user is noti¿ ed by the À ashing Smart City Brake
Support (SCBS) indicator light (red) and the active driving display * .   The Smart City Brake Support (SCBS) warning light (amber) turns on when the
system has a malfunction.
 Refer to Warning Lights on page 4-38 .