2015 MAZDA MODEL 3 HATCHBACK brake

*Some models.4–91
When Driving
i-ELOOP
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
Tyre TyreCapacitor
CapacitorDC-DC converter
DC-DC converter
Kinetic energy
Electrical power
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4–101
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 (SCBS) ................................................................................... 4-139
Collision damage reduction in medium/high speed range
Smart Brake Support (SBS) .............................................................................................. 4-145
Camera and Sensors
Forward sensing camera (FSC)
The Forward Sensing Camera (FSC) determines the conditions ahead of the vehicle while
travelling at night and detects traffi c lanes. The following systems also use the Forward
Sensing Camera (FSC).
 


 High Beam Control system (HBC)



 Lane Departure Warning System (LDWS)
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 4-148 .
Radar sensor (front)
The radar sensor (front) functions by detecting the radio waves refl ected off a vehicle ahead
sent from the radar sensor. The following systems also use the radar sensor (front).
 


 Mazda Radar Cruise Control (MRCC)



 Distance Recognition Support System (DRSS)



 Smart Brake Support (SBS)
The radar sensor (front) is mounted behind the radiator grille.
Refer to Radar Sensor (Front) on page 4-150 .
Laser sensor (front)
The laser sensor (front) emits a near-infrared laser beam and receives the beam refl ected
off the refl 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).
 


 Smart City Brake Support (SCBS)
The laser sensor (front) is installed at the top of the windscreen near the rearview mirror.
Refer to Laser Sensor (Front) on page 4-153 .
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4–10 8
When Driving
i-ACTIVSENSE
WARNING
Do not use the LDWS under the following conditions:
The system may not operate adequately according to the actual driving conditions,
resulting in an accident.
 
 Driving on roads with tight curves. 
 Driving under bad weather conditions (rain, fog, and snow).
The functions of the LDWS have limitations:
Always stay on course using the steering wheel and drive with care. The system is not
designed to compensate for a driver’s lack of caution and if you rely too much on the
LDWS it could lead to an accident. The driver is responsible for assuring lane changes
and other manoeuvres. Always pay attention to the direction in which the vehicle is
travelling and the vehicle’s surroundings.
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 traffi 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 traffi c
lane.
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4–111
When Driving
i-ACTIVSENSE
NOTE
  The LDWS remains on stand-by
until it detects white or yellow lines
on both the left and right sides, or on
either side.
  When the system detects a white
or yellow line on one side only, the
system will operate the warning only
when the vehicle deviates to the side
the white or yellow line detected.
Auto cancel
Under the following conditions, the
LDWS is automatically cancelled and
kept on stand-by, and the LDWS warning
light (amber) in the instrument cluster
illuminates.
 


 The system cannot detect white or
yellow lines.
 


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


 The vehicle is making a sharp turn.



 The vehicle is making a turn at an
inadequate speed.
 


 The temperature inside the camera is
high or low.
 


 The windscreen around the camera is
foggy.
 


 The windscreen 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 4-24 .
Auto cancel of warning
Under the following conditions, the
LDWS determines that the driver is
making lane changes and the warning is
automatically cancelled.
The LDWS is automatically enabled after
the operation.
 


 The steering wheel is operated abruptly.



 The brake pedal is depressed abruptly.



 The accelerator pedal is depressed
abruptly.
 


 A direction indicator lever is operated
(after the direction indicator 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).
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*Some models.4–120
When Driving
i-ACTIVSENSE
Distance Recognition Support System (DRSS) *
The Distance Recognition Support System (DRSS) measures the distance between your
vehicle and a vehicle ahead using a radar sensor while the vehicle speed is 30 km/h or faster
(19 mph or faster), and indicates a recommended distance to maintain between the vehicles.
Furthermore, if your vehicle approaches a vehicle ahead more closely than the appropriate
distance to maintain between the vehicles, the vehicle-ahead indication in the display is
fl ashed to advise the driver to keep a safer distance from the vehicle ahead.
WARNING
Do not rely completely on the Distance Recognition Support System (DRSS) and always
drive carefully:
The Distance Recognition Support System (DRSS) provides advice for safer driving and
notifi es the driver of a recommended, safer distance to maintain with a vehicle ahead.
The ability to detect a vehicle ahead is limited depending on the type of vehicle ahead,
the weather conditions, and the traffi c conditions. Therefore, if the accelerator and
brake pedals are not operated correctly it could lead to 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.
NOTE
  The Distance Recognition Support System (DRSS) operates when all of the following
conditions are met:
 


 The ignition is switched ON.



 The Distance Recognition Support System (DRSS) is on.



 The selector lever is in a position other than reverse (R).



 The vehicle speed is 30 km/h or faster (19 mph or faster). 

 The objects which activate the system are 4-wheeled vehicles. 
 The Distance Recognition Support System (DRSS) may also operate in the presence of
motorcycles and bicycles.
  The Distance Recognition Support System (DRSS) system may not operate normally
under the following conditions:
 


 The Dynamic Stability Control (DSC) has a malfunction.



 The vehicle ahead is travelling at an extremely slow speed. 

 The system does not operate with the following objects:




 Vehicles approaching in the opposite direction.



 Stationary objects (stopped vehicles, obstructions)
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*Some models.4–123
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, which frees the driver 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 suffi cient distance between the vehicles.
The possible vehicle speed setting ranges are as follows:
 


(European models)
 About 30 km/h (19 mph) to 200 km/h (124 mph)



(Except European models)
 About 30 km/h (19 mph) to 145 km/h (90 mph)
Use the Mazda Radar Cruise Control (MRCC) system on expressways and other highways
which do not require a lot of repeated acceleration and deceleration.
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4–124
When Driving
i-ACTIVSENSE
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:
 
 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).
  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).
  Slippery roads such as ice or snow-bound roads (The tyres could spin causing you to
lose vehicle control).
  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).
For the purposes of safety, switch the Mazda Radar Cruise Control (MRCC) system off
when it is not being used.
CAUTION
If the vehicle is towed or you are towing something, switch the Mazda Radar Cruise
Control (MRCC) system off to prevent an incorrect operation.
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4–125
When Driving
i-ACTIVSENSE
NOTE
  The Mazda Radar Cruise Control (MRCC) system operates when all of the following
conditions are met.
 


 The vehicle speed is as follows: 



(European models)
 About 30 km/h (19 mph) to 200 km/h (124 mph) 


(Except European models)
 About 30 km/h (19 mph) to 145 km/h (90 mph) 
 



The Mazda Radar Cruise Control (MRCC) system is turned on.



 The parking brake is not applied.



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



 The Dynamic Stability Control (DSC) is operating normally.

(Manual transaxle)




 The shift lever is in a position other than reverse (R) or neutral (N).



 The clutch pedal is not depressed.

(Automatic transaxle)




 The selector lever is in the drive (D) position or manual (M) position (manual
mode).
 
 In the following cases, the warnings may not activate even if your vehicle starts
closing in on the vehicle ahead.
 


 You are driving at the same speed as the vehicle ahead.



 Directly after the Mazda Radar Cruise Control (MRCC) system has been set.



 When the accelerator pedal is depressed or directly after the accelerator pedal is
released.
 


 Another vehicle cuts into the driving lane. 

 The following are not detected as physical objects.




 Vehicles approaching in the opposite direction



 Pedestrians



 Stationary objects (stopped vehicles, obstructions) 

 If a vehicle ahead is travelling at an extremely low speed, the system may not detect it
correctly.
  During headway control travel, do not set the system on two-wheeled vehicles such as
motorcycles and bicycles.
  Do not use the Mazda Radar Cruise Control (MRCC) system under conditions in
which the close proximity warnings are frequently activated.
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