2015 MAZDA MODEL CX-3 brakes

*Some models.4–124
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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 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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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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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 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.
  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.
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NOTE
  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) turns on when the
system has a malfunction.
 Refer to Warning/Indicator Lights on page 4-36 .
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
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.
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Adjustable Speed Limiter Main Indicator Light (Amber)/Adjustable Speed
Limiter Set Indicator Light (Green)
The indicator light has two colours.
Adjustable speed limiter main indicator light (amber)
The indicator light illuminates amber when the speed limiter switch is pressed and the
adjustable speed limiter is activated.
Adjustable speed limiter set indicator light (green)
The indicator light illuminates green when a speed has been set.
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 safe distance from the vehicles behind you.
Active Driving Display Display in the instrument cluster
CAUTION
If the set speed is set lower than the current vehicle speed by pressing the SET or
RESUME switch, the warning beep is not activated for about 30 seconds even if the
vehicle speed is faster than the newly set speed by 3 km/h (2 mph). Be careful not to drive
over the set speed.
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*Some models.4–139
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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 20 km/h (12 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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NOTE
  When the system operates, the user is notifi ed by the fl 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 4-37 .
Smart City Brake Support (SCBS)
Indicator Light (Red)
If the Smart City Brake Support (SCBS) is
operating, the indicator light (red) fl ashes.
Automatic Brake Operation
Display (Vehicles With Active
Driving Display)
“SCBS Automatic Brake” is displayed in
the active driving display while the SCBS
brakes or the brake assist (SCBS brake
assist) is operating.
NOTE
  The collision warning beep sounds
intermittently while the SCBS brake
or brake assist (SCBS brake assist) is
operating.
  If the vehicle is stopped by the SCBS
operation and the brake pedal is not
depressed, the warning beep sounds
one time after about 2 seconds and
the SCBS brake is automatically
released.
Stopping The Smart City Brake
Support (SCBS) System Operation
The Smart City Brake Support (SCBS)
system can be temporarily deactivated.
When the Smart City Brake Support
(SCBS) system is turned off, the Smart
City Brake Support (SCBS) OFF indicator
light turns on.
When the engine is restarted, the system
becomes operational.
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Smart Brake Support (SBS) *
Smart Brake Support (SBS) 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 (front) determines
that your vehicle may hit a vehicle ahead. Furthermore, if the radar sensor (front) determines
that a collision is unavoidable, the automatic brake control is performed to reduce damage in
the event of a collision.
In addition, when the driver depresses the brake pedal, the brakes operate more quickly to
assist the driver (vehicles with brake fl uid pre-fi ll).
WARNING
Do not rely completely on the Smart Brake Support (SBS) system and always drive
carefully:
The Smart Brake Support (SBS) is designed to reduce damage in the event of
a collision, not avoid an accident. 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 safer distance from vehicles ahead or on-coming
vehicles.
CAUTION
If the vehicle is towed or you are towing something, switch the Smart Brake Support
(SBS) system off to prevent a mistaken operation.
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