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CAUTION
ØWhen driving off-road in areas where there is grass or forage, it is recommended
that the Smart City Brake Support (SCBS) system be turned off.
ØAlways use tires for all wheels that are of the specified size, and the same
manufacture, brand, and tread pattern. In addition, do not use tires with
significantly different wear patterns on the same vehicle. Do not use tires with
significantly different wear patterns on the same vehicle as the Smart City Brake
Support (SCBS) system may not operate normally.
ØThe laser sensor includes a function for detecting a soiled windshield and
informing the driver, however, depending on the conditions, it may not detect
plastic shopping bags, ice or snow on the windshield. In such cases, the system
cannot accurately determine a vehicle ahead and may not be able to operate
normally. Always drive carefully and pay attention to the road ahead.
4-88
When Driving
Brake
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NOTElThe Smart City Brake Support (SCBS) system will not operate if the driver is deliberately
performing driving operations (accelerator pedal and steering wheel).
lThe Smart City Brake Support (SCBS) system will operate under the following conditions.lThe engine is running.lThe display in the instrument cluster does not indicate that the system requires inspection or it
cannot be used.
lThe vehicle speed is between about 4 to 30 km/h (2 to 18 mph).lThe Smart City Brake Support (SCBS) system is not turned off.lThe DSC operation is not turned off using the DSC OFF switch.lThe DSC is not malfunctioning.lThe Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-infrared laser
beam and receiving the beam reflected off the reflector 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:
lReflection of the laser is poor due to the shape of the vehicle ahead.lThe vehicle ahead is significantly dirty.lUnder bad weather condition, such as rain, fog and snow.lThe window washer is being used or the windshield wipers are not used when it's raining.lThe windshield is dirty.lThe steering wheel is turned completely left or right, or the vehicle is accelerated rapidly and
comes close to the vehicle ahead.
lTrucks with low loading platforms and vehicles with an extremely low or high profile.lVehicles with certain shapes such as a vehicle carrier.lUnder the following conditions, the Smart City Brake Support (SCBS) system may not operate
normally.
lHeavy luggage is loaded in the luggage compartment or on the rear seat.lIf there is the possibility of partial contact with a vehicle ahead.lWhen driving on continuously curving roads, and entering and exiting exits.lElongated luggage or cargo is loaded onto installed roof rails and covers the laser sensor.lExhaust gas from the vehicle in front, sand, snow, and water vapor rising from manholes and
grating, and water splashed into the air.
lWhen towing a malfunctioning vehicle.lIn 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.
lObjects on the road at the entrance to a curve.lVehicles passing in the opposite lane while making a curve.lMetal objects, bumps, or protruding objects on the road.lWhen passing through a toll gate.lWhen passing under a vinyl curtain or flag.lPlastic objects such as pylons.lTwo-wheeled vehicles, pedestrians, animals or standing trees.lVehicle is driven with some of the tires having significant wear.
When Driving
Brake
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qLaser Sensor Handling
The Smart City Brake Support (SCBS) laser sensor is installed at the top of the windshield
near the rearview mirror.
Laser sensor
Always keep the surface of the windshield around the laser sensor clean to assure proper
operation of the Smart City Brake Support (SCBS) system.
WARNING
As there is the possibility of eye damage occurring from the laser, always heed the
following precautions:
ØNever remove the sensor.
ØA removed sensor will not meet the conditions for a class 1M laser under the IEC
60825-1 specification and therefore eye safety cannot be assured.
ØDo not peer into the sensor using optical instruments with a magnification
function such as magnifying glasses, and microscopic and objective lenses within
a distance of 100 mm (3.94 in) from the sensor.
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When Driving
Brake
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Laser sensor radiation data
Maximum average power: 45 mW
Pulse duration: 33 ns
Wavelength: 905 nm
Divergence angle (horizontal×vertical): 28 degrees×12 degrees
qStopping The Smart City Brake
Support (SCBS) System Operation
The Smart City Brake Support (SCBS)
system can be deactivated. Refer to
Personalization Features on page 9-9.
When the engine is restarted, the system
becomes operational.
With Smart City Brake Support
(SCBS) OFF Indicator Light
When the Smart City Brake Support
(SCBS) system is turned off, the Smart
City Brake Support (SCBS) OFF indicator
light turns on.NOTE
When the DSC OFF switch is pressed to stop
the TCS/DSC operation, the Smart City Brake
Support (SCBS) system operation also stops
and the Smart City Brake Support (SCBS)
OFF indicator light turns on.
When Driving
Brake
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Antilock Brake System (ABS)
The ABS control unit continuously
monitors the speed of each wheel. If one
wheel is about to lock up, the ABS
responds by automatically releasing and
reapplying that wheel's brake.
The driver will feel a slight vibration in
the brake pedal and may hear a chattering
noise from the brake system. This is
normal ABS system operation. Continue
to depress the brake pedal without
pumping the brakes.
A system malfunction or operation
conditions are indicated by a warning.
Refer to Warning/Indicator Lights on page
4-23.
WARNING
Do not rely on ABS as a substitute for
safe driving:
The ABS cannot compensate for
unsafe and reckless driving, excessive
speed, tailgating (following another
vehicle too closely), driving on ice and
snow, and hydroplaning (reduced tire
friction and road contact because of
water on the road surface). You can
still have an accident.NOTE
lBraking distances may be longer on loose
surfaces (snow or gravel, for example)
which usually have a hard foundation. A
vehicle with a normal braking system may
require less distance to stop under these
conditions because the tires will build up a
wedge of surface layer when the wheels
skid.
lThe sound of the ABS operating may be
heard when starting the engine or
immediately after starting the vehicle,
however, it does not indicate a malfunction.
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When Driving
ABS/TCS/DSC
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Traction Control System
(TCS)
The Traction Control System (TCS)
enhances traction and safety by
controlling engine torque and braking.
When the TCS detects driving wheel
slippage, it lowers engine torque and
operates the brakes to prevent loss of
traction.
This means that on a slick surface, the
engine adjusts automatically to provide
optimum power to the drive wheels,
limiting wheel spin and loss of traction.
A system malfunction or operation
conditions are indicated by a warning.
Refer to Warning/Indicator Lights on page
4-23.
WARNING
Do not rely on the Traction Control
System (TCS) as a substitute for safe
driving:
The Traction Control System (TCS)
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.
Use snow tires or tire chains and drive
at reduced speeds when roads are
covered with ice and/or snow:
Driving without proper traction
devices on snow and/or ice-covered
roads is dangerous. The Traction
Control System (TCS) alone cannot
provide adequate traction and you
could still have an accident.
NOTE
To turn off the TCS, press the DSC OFF switch
(page 4-94).
When Driving
ABS/TCS/DSC
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i-ELOOPí
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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When Driving
íSome models.
i-ELOOP
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Mazda Radar Cruise Control (MRCC)í
The Mazda Radar Cruise Control (MRCC) system is designed to maintain headway
control*1according to the vehicle speed using a radar sensor 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 sufficient 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.
4-102
When Driving
íSome models.
Mazda Radar Cruise Control (MRCC)
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