2016 MAZDA MODEL 3 HATCHBACK brake

4–64
When Driving
ABS/TCS/DSC
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 maneuvering,
enhancing vehicle safety.

Refer to ABS (page 4-62 ) and TCS
(page 4-63 ).

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 4-21 .
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 tire friction and road contact
because of water on the road surface).
You can still have an accident.

CAUTION
 


¾ The DSC may not operate correctly
unless the following are observed:
 


¾ Use tires of the correct size specifi ed
for your Mazda on all four wheels.
 


¾ Use tires of the same manufacturer,
brand and tread pattern on all four
wheels.
 


¾ Do not mix worn tires. 



¾ The DSC may not operate correctly when
tire chains are used or a temporary spare
tire is installed because the tire 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
Authorized Mazda Dealer.
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4–66
When Driving
i-ELOOP
*Some models.
i-ELOOP *
On conventional vehicles, the kinetic energy that is generated when the vehicle is
decelerated by applying the brakes or during engine braking ends up being discarded as
heat. By utilizing this discarded kinetic energy to generate electricity and use it to power the
vehicle's electrical devices and accessories such as the A/C and audio, fuel consumption can
be reduced. Mazda's system for generating electricity from this kinetic energy is called the
Regenerative Braking System (i-ELOOP).

Electric components
Engine Components
Vehicle Systems:
Air-conditioning
Audio
Head-lights, etc
Accelerator OFF
Accelerator ONEnergy
regeneration
ChargeBattery
Battery Power
Power
Electric components
Engine Components
Vehicle Systems:
Air-conditioning
Audio
Head-lights, etc
Engine
Variable
Voltage
alternator
Variable
Voltage
alternator Engine
Tire TireCapacitor
CapacitorDC-DC converter
DC-DC converter
Kinetic energy
Electrical

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4–74
When Driving
i-ACTIVSENSE
i-ACTIVSENSE
i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support
systems which make use of a Forward Sensing Camera (FSC) and radar sensors. These
systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer driving by reducing the load on the
driver and helping to avert collisions or reduce their severity. However, because each system
has its limitations, always drive carefully and do not rely solely on the systems.
Active Safety Technology
Active Safety Technology supports safer driving by helping the driver to recognize potential
hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Adaptive Front Lighting System (AFS) .............................................................................. 4-76
High Beam Control System (HBC) .................................................................................... 4-77
Left/right side and rear side detection
Lane Departure Warning System (LDWS) ......................................................................... 4-80
Blind Spot Monitoring (BSM) System ............................................................................... 4-86
Forward obstruction warning
Forward Obstruction Warning (FOW) ................................................................................ 4-95
Rear obstruction detection when leaving a parking space
R e a r C r o s s T r a f¿ c Alert (RCTA) ........................................................................................ 4-92
Driver support system
Inter-vehicle distance
Mazda Radar Cruise Control (MRCC) ............................................................................... 4-98
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 (SCBS) ................................................................................... 4-106
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4–75
When Driving
i-ACTIVSENSE
Camera and Sensors
F o r w a r d s e n s i n g c a m e r a ( F S C )
The Forward Sensing Camera (FSC) determines the conditions ahead of the vehicle while
traveling at night and detects traf¿ c lanes. The following systems also use the Forward
Sensing Camera (FSC).
 


y High Beam Control system (HBC)



y Lane Departure Warning System (LDWS)
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 4-111 .
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).
 


y Mazda Radar Cruise Control (MRCC)



y Forward Obstruction Warning (FOW)
The radar sensor (front) is mounted behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-113 .
Laser sensor (front)
The laser sensor (front) emits a near-infrared laser beam and receives the beam reÀ ected
off the reÀ ective surface of a vehicle in front, and the detected beam is then used for
measurement. The following systems also use the laser sensor (front).
 


y Smart City Brake Support (SCBS)
The laser sensor (front) is installed at the top of the windshield near the rearview mirror.
Refer to Laser Sensor (Front) on page 4-116 .
Radar sensors (rear)
The radar sensors (rear) function by detecting the radio waves reÀ ected off a vehicle
approaching from the rear or an obstruction sent from the radar sensors. The following
systems also use the radar sensors (rear).
 


y Blind Spot Monitoring (BSM) System



y Rear Cross Traf¿ c Alert (RCTA)
The radar sensors (rear) are installed inside the rear bumper, one each on the left and right
sides.
Refer to Radar Sensors (Rear) on page 4-118 .
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4–81
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.

N O T E
 


y 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 center of the lane.
 


y When the turn signal lever is operated for a lane change, the LDWS warning is
automatically canceled. The LDWS warning becomes operable when the turn signal lever
is returned and the system detects the white or yellow lines.
 


y 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 canceled.
 


y 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.
 


y The LDWS does not operate if it does not detect the white or yellow lines of the traf¿ c
lane.
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4–84
When Driving
i-ACTIVSENSE
Auto cancel
Under the following conditions, the
LDWS is automatically canceled and
kept on stand-by, and the LDWS warning
light (amber) in the instrument cluster
illuminates.
 


y The system cannot detect white or
yellow lines.
 


y The vehicle speed is less than about 65
km/h (40 mph).
 


y The vehicle is making a sharp turn.



y The vehicle is making a turn at an
inadequate speed.
 


y The temperature inside the camera is
high or low.
 


y The windshield around the camera is
foggy.
 


y The windshield around the camera is
blocked by an obstruction, causing poor
forward visibility.

The lane indication (bordered line) is
indicated in the active driving display
(Type A instrument cluster
*1 ) or the multi
information display (Type B instrument
cluster
*1 ).
The LDWS is automatically enabled when
the condition changes and the system is
operable.

*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on page 4-11 .

Auto cancel of warning
Under the following conditions, the
LDWS determines that the driver is
making lane changes and the warning is
automatically canceled.
The LDWS is automatically enabled after
the operation.
 


y The steering wheel is operated abruptly.



y The brake pedal is depressed abruptly.



y The accelerator pedal is depressed
abruptly.
 


y A turn signal lever is operated (after the
turn signal lever is returned, the LDWS
warning may not operate for about 3
seconds which is the period of time
required to make a lane correction).

N O T E
 


y After about 5 seconds have elapsed
with the turn signal lever left operating,
the LDWS warning may operate if the
vehicle is close to a white or yellow line.
 


y The sensitivity of the warning
(sensitivity with which the system
determines the driver's intentional lane
change) can be changed.
  Refer to Personalization Features on
page 9-12 .

Canceling the System
To cancel the LDWS, press the LDWS
switch. The LDWS indicator light (Green/
Amber) in the instrument cluster turns off.
The lane indication displayed in the
active driving display (Type A instrument
cluster
*1 ) or the multi information display
(Type B instrument cluster *1 ) turns off.
*1 To determine which instrument cluster
is equipped on your Mazda, Refer to
Meters and Gauges on page 4-11 .

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4–95
When Driving
i-ACTIVSENSE
Forward Obstruction Warning (FOW)
Forward Obstruction Warning (FOW) is a system which alerts the driver of a possible
collision using an indicator and warning sound in the instrument cluster while the vehicle
is being driven at about 15 km/h or faster (10 mph or faster) and the system's radar sensor
determines that your vehicle may hit a vehicle or obstruction ahead.

WARNING
Do not rely completely on the Forward Obstruction Warning (FOW) system and always
drive carefully:
Forward Obstruction Warning (FOW) is only designed to reduce damage in the event of
a collision. The ability to detect an obstruction is limited depending on the obstruction,
weather conditions, or traffi c 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 safe
distance from vehicles ahead or on-coming vehicles.

N O T E
 


y The Forward Obstruction Warning (FOW) system operates when all of the following
conditions are met:
 


y The ignition is switched ON.



y The Forward Obstruction Warning (FOW) system is on.



y The vehicle speed is about 15 km/h (10 mph) or faster.



y The relative speed between your vehicle and the vehicle or obstruction ahead is about
15 km/h (10 mph) or faster.
 


y The Forward Obstruction Warning (FOW) system may not operate under the following
conditions:
 


y If there is the possibility of hitting only a part of a vehicle or obstruction ahead.



y If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.



y The DSC is malfunctioning.



y The vehicle is driven at the same speed as the vehicle ahead.



y The accelerator pedal is depressed.



y The brake pedal is depressed.



y The steering wheel is being operated.



y The selector lever is being operated.



y The turn signal is being used.
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4–98
When Driving
i-ACTIVSENSE
Mazda Radar Cruise Control (MRCC)
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway control *1
according to the vehicle speed using a radar sensor (front) to detect the distance to a vehicle
ahead, and by presetting the vehicle speed between 30 km/h (19 mph) and 145 km/h (90
mph), the driver is freed from having to constantly use the accelerator or brake pedals.

*1 Headway Control: Control of the distance between your vehicle and the vehicle ahead
detected by the Mazda Radar Cruise Control (MRCC) system.

Additionally, if your vehicle starts closing in on the vehicle ahead because, for example, the
vehicle ahead brakes suddenly, a warning sound and a warning indication in the display are
activated simultaneously to alert you to maintain a suf¿ cient distance between the vehicles.
Use the Mazda Radar Cruise Control (MRCC) system on expressways and other highways
which do not require a lot of repeated acceleration and deceleration.
WARNING
Do not rely completely on the Mazda Radar Cruise Control (MRCC) system and always
drive carefully:
The Mazda Radar Cruise Control (MRCC) system is designed to reduce load on the
driver, and although it maintains a constant vehicle speed, or specifi cally, it maintains
a constant distance between your vehicle and the detected vehicle ahead according to
the vehicle speed, the system has detection limitations depending on the type of vehicle
ahead and its conditions, the weather conditions, and the road conditions. Additionally,
the system may be unable to decelerate suffi ciently to avoid hitting the vehicle ahead
if the vehicle ahead applies the brakes suddenly or another vehicle cuts into the driving
lane, which 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.

Do not use the Mazda Radar Cruise Control (MRCC) system in the following locations.
Otherwise, it could lead to an accident:
 


¾ Roads with sharp curves and where vehicle traffi c is heavy and there is insuffi cient
space between vehicles. Roads where frequent and repetitive acceleration and
deceleration occur (Driving under these conditions using the Mazda Radar Cruise
Control (MRCC) system is not possible).
 


¾ When entering and exiting interchanges, service areas, and parking areas of highways
(If you exit a highway while headway control is in use, the vehicle ahead will no longer
be tracked and your vehicle may accelerate to the set speed).
 


¾ Slippery roads such as ice or snow-bound roads (The tires could spin causing you to
lose vehicle control).
 


¾ Long descending slopes (to maintain distance between vehicles, the system
automatically and continuously applies the brakes which could result in the loss of
brake power).

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