2015 MAZDA MODEL 3 HATCHBACK brake

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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) fl ashes when the
system has a malfunction.
 Refer to Warning Lights on page 4-41 .
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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Close Proximity Warning
If your vehicle rapidly closes in on the vehicle ahead because the vehicle applies the brakes
suddenly while you are travelling in headway control, the warning sound activates and
the brake warning is indicated in the display. Always verify the safety of the surrounding
area and depress the brake pedal while keeping a safer distance from the vehicle ahead.
Additionally, always keep a safer distance from the vehicles behind you.
Setting the System
To Activate
With adjustable speed limiter
To activate the system, press the ON/OFF switch.
Without adjustable speed limiter
To activate the system, press the ON switch.
ON/OFF switch
OFF switch ON switch Without Adjustable Speed Limiter With Adjustable Speed Limiter
CANCEL switch CANCEL switch
Switch SwitchRESUME
switchRESUME
switch
Switch Switch
SET+/SET- switch SET+/SET- switch
When the system is activated, the vehicle speed and the distance between vehicles while in
headway control can be set. The Mazda Radar Cruise Control (MRCC) indication is shown
in the active driving display.
NOTE
When the ignition is switched to ACC or OFF while the Mazda Radar Cruise Control
(MRCC) is ON, the Mazda Radar Cruise Control (MRCC) remains ON automatically.
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To accelerate using the accelerator
pedal
Depress the accelerator pedal and press
and release the SET
or SET switch at
the desired speed. If a switch cannot be
operated, the system returns to the set
speed when you release your foot from the
accelerator pedal.
CAUTION
The warnings and brake control do not
operate while the accelerator pedal is
depressed.
NOTE
  When accelerating using the SET
switch while in headway control, the
set vehicle speed can be adjusted but
acceleration is not possible. If there
is no longer a vehicle ahead,
acceleration continues until reaching
the set vehicle speed. Check the set
vehicle speed by viewing the set
vehicle speed display in the active
driving display.
  When depressing the accelerator
pedal, the inter-vehicle distance
display in the display in the
instrument cluster changes to the
white-line display.
  The minimum settable speed is 30
km/h (19 mph). If the set vehicle
speed reaches 30 km/h (19 mph)
using the switch operation, constant
speed travel is maintained at about
30 km/h (19 mph) even if the SET
switch is pressed. The Mazda Radar
Cruise Control (MRCC) system is
not cancelled.
To Deactivate
With adjustable speed limiter
The Mazda Radar Cruise Control (MRCC)
is cancelled when the ON/OFF switch is
pressed.
Without adjustable speed limiter
The Mazda Radar Cruise Control (MRCC)
is cancelled when the OFF switch is
pressed.
When the system is temporarily
cancelled
In the following cases, the Mazda Radar
Cruise Control (MRCC) system is
temporarily cancelled and the “MRCC
Cancelled” indication is displayed in
the display in the instrument cluster.
The Mazda Radar Cruise Control
(MRCC) indicator light (green) turns off
simultaneously.
 


 The CANCEL switch is pressed.



 The brake pedal is depressed.



 The parking brake is applied.



 The selector lever is shifted to park (P),
neutral (N) or reverse (R) (automatic
transaxle).
 


 The shift lever is in the reverse (R)
position (manual transaxle).
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 In the following cases, the “MRCC
Cancelled” indication is displayed and
the beep sounds one time.
 

 
 The vehicle speed decreases to less
than 25 km (16 mph).
 

 
 The DSC has operated.


 
 The TCS has operated for a certain
period of time.
 

 
 The Smart Brake Support (SBS) has
operated.
 

 
 The Smart City Brake Support (SCBS)
has operated.
 

 
 When travelling on a down slope for a
long period of time.
 

 
 There is a problem with the system.


 
 The engine stalls.

(Manual transaxle)



 
 The shift lever is shifted to neutral (N)
for a certain period of time.
 

 
 The clutch is depressed for a certain
period of time.
NOTE
  The Mazda Radar Cruise Control
(MRCC) system may be cancelled
during rain, fog, snow or other
inclement weather conditions, or the
front surface of the radiator grille is
dirty.
  If the Mazda Radar Cruise
Control (MRCC) system has been
temporarily cancelled, you can return
to the previously set vehicle speed by
pressing the RESUME switch after
the following conditions have been
met.
 


 All of the Mazda Radar Cruise
Control (MRCC) operation
conditions have been met.
 


 A certain period of time has
elapsed since the system was
automatically cancelled while
driving for a long time on a down
slope.


 If the SET / SET or RESUME
switch is pressed before a certain
period of time has elapsed since the
system was automatically cancelled
while driving for a long time on a
down slope, “MRCC Not available”
is displayed in the display.
  If the ON/OFF switch (with
adjustable speed limiter) or OFF
switch (without adjustable speed
limiter) is pressed to cancel the
Mazda Radar Cruise Control
(MRCC), the system does not return
to the previously set speed even if the
RESUME switch is pressed.
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Speed Limiter Warning Beep
If the vehicle speed exceeds the set speed by about 3 km/h (2 mph) or more, a warning
sound operates continuously and the adjustable speed limiter display fl ashes at the same
time. The warning sound operates and the display fl ashes until the vehicle speed decreases
to the set speed or less.
Verify the safety of the surrounding area and adjust the vehicle speed by applying the
brakes. Additionally, keep a safer distance from the vehicles behind you.
Active Driving Display Display in the instrument cluster
With multi-
information displayWithout multi-
information display
NOTE
When the system is temporarily cancelled by depressing the accelerator pedal fully, the
adjustable speed limiter display shows the cancel display. If the vehicle speed exceeds the
set speed by about 3 km/h (2 mph) or more while the cancel display is displayed, the set
speed display fl ashes but the warning sound is not operated.
Turning the System On/Off
Press the speed limiter switch to turn the system on. The adjustable speed limiter display is
displayed.
To turn the system off, press the speed limiter switch while the adjustable speed limiter is
displayed. The adjustable speed limiter display turns off.
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Temporarily Cancelling the System
The system is temporarily cancelled (stand-by status) when any of the following operations
is done while the adjustable speed limiter is displayed.
 


 CANCEL switch is pressed



 Accelerator pedal is strongly depressed
Press the RESUME switch to resume the operation at the previous set speed. The adjustable
speed limiter display remains displayed.
NOTE
The set speed can be set by pressing the SET or SET switch while the system is in
stand-by status.
The adjustable speed limiter is not cancelled by depressing the brake pedal.
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*Some models.4–139
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i-ACTIVSENSE
Smart City Brake Support (SCBS) *
The Smart City Brake Support (SCBS) system is designed to reduce damage in the event
of a collision by operating the brake control (SCBS brake) when the system's laser sensor
(front) detects a vehicle ahead and determines that a collision with a vehicle ahead is
unavoidable. It may also be possible to avoid a collision if the relative speed between your
vehicle and a vehicle ahead is less than about 15 km/h (9.3 mph).
In addition, when the driver depresses the brake pedal while the system is in the operation
range at about 4 to 30 km/h (2 to 18 mph), the brakes are applied fi rmly and quickly to
assist. (Brake Assist (SCBS brake assist))
Laser sensor
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i-ACTIVSENSE
WARNING
Do not rely on the Smart City Brake Support System (SCBS) as a substitute for safer
driving:
The Smart City Brake Support (SCBS) system cannot compensate for unsafe and
reckless driving, excessive speed, tailgating (following another vehicle too closely), and
driving on slippery roads such as wet, snowy, and icy roads (reduced tyre friction and
road contact because of water on the road surface). You can still have an accident.
Do not rely completely on the Smart City Brake Support (SCBS) system:
 
 The Smart City Brake Support (SCBS) system is only designed to reduce damage in
the event of a collision. Over reliance on the system leading to the accelerator pedal
or brake pedal being mistakenly operated could result in an accident.
  The Smart City Brake Support (SCBS) is a system which operates in response to a
vehicle ahead. The system may not be able to detect or react to 2-wheeled vehicles or
pedestrians.
  The laser sensor (front) for the Smart City Brake Support (SCBS) system is installed
near the rearview mirror. To assure the correct operation of the Smart City Brake
Support (SCBS), heed the following cautions.
 

 
 Do not apply stickers to the surface of the windscreen near the laser sensor (front)
(including transparent stickers). Otherwise, the laser sensor (front) may not be
able to detect vehicles ahead which could result in an accident.
 

 
 Do not apply coating agent to the windscreen. Otherwise, the laser sensor (front)
may not be able to detect vehicles or obstructions in front which could result in an
accident.
 

 
 Do not disassemble the laser sensor (front).


 
 If cracks or damage caused by fl ying gravel or debris is visible near the
laser sensor (front), stop using the Smart City Brake Support (SCBS) system
immediately and have your vehicle inspected by an expert repairer, we recommend
an Authorised Mazda Repairer. If the vehicle continues to be driven with cracks or
scratch marks left on the windscreen near the laser sensor (front), the system may
operate unnecessarily and cause an unexpected accident.
  Refer to Stopping The Smart City Brake Support (SCBS) System Operation on
page 4-144 .
 

 
 When replacing the windscreen wipers or windscreen, consult an expert repairer,
we recommend an Authorised Mazda Repairer.
Do not modify the suspension:
If the vehicle height or inclination is changed, the system will not be able to correctly
detect vehicles ahead. This will result in the Smart City Brake Support (SCBS) system
not operating normally or mistakenly operating, which could cause a serious accident.
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