warning MAZDA MODEL CX-3 2017 Owners Manual (in English)

4–92
When Driving
i-ACTIVSENSE
*Some models.
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.

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4–94
When Driving
i-ACTIVSENSE
N O T E
 


y The Mazda Radar Cruise Control (MRCC) system operates when all of the following
conditions are met.
 


y The vehicle speed is about 30 km/h (19 mph) to 145 km/h (90 mph).



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



y The parking brake is not applied.



y The Smart Brake Support (SBS) is not malfunctioning.



y The Dynamic Stability Control (DSC) is operating normally. 



y The selector lever is in the drive (D) position or manual (M) position (manual mode). 



y In the following cases, the warnings may not activate even if your vehicle starts closing in
on the vehicle ahead.
 


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



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



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


y Another vehicle cuts into the driving lane. 



y The following are not detected as physical objects. 



y Vehicles approaching in the opposite direction



y Pedestrians



y Stationary objects (stopped vehicles, obstructions) 



y If a vehicle ahead is traveling at an extremely low speed, the system may not detect it
correctly.
 


y During headway control travel, do not set the system on two-wheeled vehicles such as
motorcycles and bicycles.
 


y Do not use the Mazda Radar Cruise Control (MRCC) system under conditions in which
the close proximity warnings are frequently activated.
 


y 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.
 


y While the Mazda Radar Cruise Control (MRCC) system is in use, it does not cancel
even if the selector lever is operated and any intended engine braking will not occur. If
deceleration is required, lower the vehicle speed setting or depress the brake pedal.
 


y The brake lights are illuminated while the Mazda Radar Cruise Control (MRCC)
automatic braking is operating.
 


y The Mazda Radar Cruise Control (MRCC) warning light (amber) turns on when the
system has a malfunction. Refer to Warning/Indicator Lights on page 4-24 .



y The headway control operation can be canceled and the system can be switched to only
cruise control. Refer to Cruise Control Function on page 4-100 .
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4–95
When Driving
i-ACTIVSENSE
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 traveling 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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4–99
When Driving
i-ACTIVSENSE
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.

N O T E
 


y 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.
 


y When depressing the accelerator pedal,
the inter-vehicle distance display in the
active driving display changes to the
white-line display.
 


y 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 canceled.

To Deactivate
The Mazda Radar Cruise Control (MRCC)
is canceled when the OFF switch is
pressed.
When the system is temporarily
canceled
In the following cases, the Mazda Radar
Cruise Control (MRCC) system is
temporarily canceled. The Mazda Radar
Cruise Control (MRCC) indicator light
(green) turns off simultaneously.
 


y The CANCEL switch is pressed.



y The brake pedal is depressed.



y The parking brake is applied.



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


y In the following cases, the beep sounds
one time.
 

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

y
 The DSC has operated.


y
 The TCS has operated for a certain
period of time.
 

y
 The Smart City Brake Support (SCBS)
has operated.
 

y
 The Smart Brake Support (SBS) has
operated.
 

y
 When traveling on a down slope for a
long period of time.
 

y
 There is a problem with the system.

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4–10 0
When Driving
i-ACTIVSENSE
N O T E
 


y The Mazda Radar Cruise Control
(MRCC) system may be canceled during
rain, fog, snow or other inclement
weather conditions, or the front surface
of the radiator grille is dirty.
 


y If you have temporarily canceled the
Mazda Radar Cruise Control (MRCC),
you can return to your previously set
speed by pressing the RES switch and
after all of the operation conditions
have been met.
 


y If the OFF switch is pressed to cancel
the Mazda Radar Cruise Control
(MRCC), the system does not return to
the previously set speed even if the RES
switch is pressed.

Cruise Control Function
While this function is operating, the
headway control operation is canceled and
only the cruise control function operates.
The vehicle speed can be set more than
about 25 km/h (16 mph).
Use the cruise control function on
expressways and other highways which do
not require a lot of repeated acceleration
and deceleration.
WARNING
Do not use the cruise control function 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.
(Driving under these conditions
using the cruise control function is
not possible)
 


¾ Steep down slopes (Set speed may
be exceeded because suffi cient
engine braking cannot be applied)
 


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

Always drive carefully:
The warnings and brake control
will not operate after the headway
control function is canceled and the
system is switched to only the cruise
control function. Depress the brake
pedal to decelerate according to the
surrounding conditions while keeping
a safer distance from the vehicle ahead
and always driving carefully.

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4–101
When Driving
i-ACTIVSENSE
Switching to cruise control function
When the ON switch is pressed
continuously for about 2 seconds while
the Mazda Radar Cruise Control (MRCC)
system is turned on, the system is switched
to the cruise control function.
The Mazda Radar Cruise Control (MRCC)
indicator light (green) in the instrument
cluster turns off and the cruise control
indication is displayed in the active
driving display.


WARNING
Always turn off the cruise control
function when it is not in use:
Leaving the cruise control function
turned on when it is not in use
is dangerous as it could operate
unexpectedly, resulting in an accident.

How to set the speed
Adjust the system to the desired vehicle
speed using the accelerator pedal.
Cruise control function begins when the
SET
or SET switch is pressed.
N O T E
 


y The system may not be able to maintain
the set speed constantly depending on
driving conditions such as steep up or
down slopes.
 


y The speed will continue increasing
while the SET
switch is pressed and
held. The speed will continue
decreasing while the SET
switch is
pressed and held.

How to increase the set speed
The set speed can be increased using the
following operations:
To increase speed using the SET

switch
Press and hold the SET
switch and
release the switch at the desired speed.
The set speed can be adjusted
incrementally (1 km/h (1 mph)
increments) by pressing the switch and
releasing it immediately. For example, if
the switch is pressed 4 times, the set speed
increases by about 4 km/h (4 mph).
To increase speed using accelerator
pedal
Depress the accelerator pedal and press the
SET
or SET switch at the desired
speed.
If the switch is not operated, the system
returns to the set speed after you release
your foot from the accelerator pedal.
How to Decrease the Set Speed
P r e s s t h e S E T
switch continuously and
release the switch at the desired speed.
The set speed can be adjusted
incrementally (1 km/h (1 mph) increments)
by pressing the switch and releasing it
immediately. For example, if the switch
is pressed 4 times, the set vehicle speed
decreases by about 4 km/h (4 mph).
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4–104
When Driving
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 tire 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:
 


¾ 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.
 


¾ 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 two-wheeled vehicles
or pedestrians.
 


¾ 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.
 

¾
 Do not apply stickers to the surface of the windshield 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.
 

¾
 Do not apply coating agent to the windshield. Otherwise, the laser sensor (front)
may not be able to detect vehicles or obstructions in front which could result in an
accident.
 

¾
 Do not disassemble the laser sensor (front).


¾
 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 Authorized Mazda Dealer. If the vehicle continues
to be driven with cracks or scratch marks left on the windshield 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
4-107 .
 

¾
 When replacing the windshield wipers or windshield, consult an Authorized Mazda
Dealer.


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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4–105
When Driving
i-ACTIVSENSE
Turn off the Smart City Brake Support (SCBS) when the vehicle is running on a chassis
roller or being towed:
Turn off the Smart City Brake Support (SCBS) system to prevent mistaken operation when
the vehicle is running on a chassis roller or being towed.
Refer to the Stopping the Smart City Brake Support (SCBS) System Operation on page
4-107 on how to turn off the Smart City Brake Support (SCBS) system.

CAUTION




¾ When 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 .




¾ Always use tires for all wheels that are of the specifi ed size, and the same manufacturer,
brand, and tread pattern. In addition, do not use tires with signifi cantly diff erent wear
patterns on the same vehicle as the Smart City Brake Support (SCBS) system may not
operate normally.
 


¾ The laser sensor (front) 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.

N O T E
 


y The Smart City Brake Support (SCBS) system will not operate if the driver is deliberately
performing driving operations (accelerator pedal and steering wheel).
 


y The Smart City Brake Support (SCBS) system will operate under the following conditions. 



y The engine is running.



y The Smart City Brake Support (SCBS) warning light (amber) does not illuminate.



y The vehicle speed is between about 4 to 30 km/h (2 to 18 mph).



y The Smart City Brake Support (SCBS) system is not turned off.



y The DSC is not malfunctioning.
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4–106
When Driving
i-ACTIVSENSE
*Some models.
 


y The Smart City Brake Support (SCBS) detects a vehicle ahead by emitting a near-infrared
laser beam and receiving the beam reÀ ected off the reÀ ector 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:
 


y ReÀ ection of the laser is poor due to the shape of the vehicle ahead.



y The vehicle ahead is signi¿ cantly dirty.



y Under bad weather condition, such as rain, fog and snow.



y The window washer is being used or the windshield wipers are not used when it's
raining.
 


y The windshield is dirty.



y The steering wheel is turned completely left or right, or the vehicle is accelerated
rapidly and comes close to the vehicle ahead.
 


y Trucks with low loading platforms and vehicles with an extremely low or high pro¿ le.



y Vehicles with certain shapes such as a vehicle carrier. 



y Under the following conditions, the Smart City Brake Support (SCBS) system may not
operate normally.
 


y Heavy luggage is loaded in the luggage compartment or on the rear seat.



y If there is the possibility of partial contact with a vehicle ahead.



y When driving on continuously curving roads, and entering and exiting exits.



y Elongated luggage or cargo is loaded onto installed roof rails and covers the laser
sensor (front).
 


y Exhaust gas from the vehicle in front, sand, snow, and water vapor rising from
manholes and grating, and water splashed into the air.
 


y When towing a malfunctioning vehicle.



y When driving with tires having signi¿ cantly different wear. 



y In the following cases, the laser sensor (front) may inadvertently determine that there is a
vehicle ahead and the Smart City Brake Support (SCBS) system may operate.
 


y Objects on the road at the entrance to a curve.



y Vehicles passing in the opposite lane while making a curve.



y Metal objects, bumps, or protruding objects on the road.



y When passing through a toll gate equipped with a bar.



y When passing under a vinyl curtain or À ag.



y Plastic objects such as pylons.



y Two-wheeled vehicles, pedestrians, animals or standing trees. 



y When the system operates, the user is noti¿ ed by the À ashing Smart City Brake Support
(SCBS) indicator light (red) and the active driving display * . 


y The Smart City Brake Support (SCBS) warning light (amber) turns on when the system
has a malfunction.
  Refer to Warning Lights on page 4-25 .
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4–107
When Driving
i-ACTIVSENSE
Smart City Brake Support (SCBS)
Indicator Light (Red)
If the Smart City Brake Support (SCBS) is
operating, the indicator light (red) À 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.


N O T E
 


y The collision warning beep sounds
intermittently while the SCBS brake
or brake assist (SCBS brake assist) is
operating.
 


y 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.
Without SCBS OFF switch
Refer to Personalization Features on page
9-10 .
With SCBS OFF switch
Press the SCBS OFF switch to turn
off the system. The Smart City Brake
Support (SCBS) OFF indicator light in the
instrument cluster will illuminate.


Press the switch again to turn the system
back on. The Smart City Brake Support
(SCBS) OFF indicator light will turn off.
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