2016 MAZDA MODEL 3 HATCHBACK Owners Manual (in English)

4–113
When Driving
i-ACTIVSENSE
Radar Sensor (Front)
Your vehicle is equipped with a radar sensor (front).
The following systems also use the radar sensor (front).
 


y Mazda Radar Cruise Control (MRCC)



y Forward Obstruction Warning (FOW)
The radar sensor (front) functions by detecting the radio waves reÀ ected off a vehicle ahead
or an obstruction sent from the radar sensor (front).
The radar sensor (front) is mounted behind the front emblem.


Radar sensor (front)

If the Forward Obstruction Warning (FOW) warning light (amber) is illuminated, the area
around the radar sensor (front) may be dirty. Refer to “Warning Guidance” in the center
display (Type B audio).
Refer to If a Warning Light Turns On or Flashes on page 7-24 .
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4–114
When Driving
i-ACTIVSENSE
CAUTION
Heed the following precautions to assure correct operation of each system.  


¾ Do not adhere stickers (including transparent stickers) to the surface of the radiator
grille and front emblem in and around the radar sensor (front), and do not replace
the radiator grille and front emblem with any product that is not a genuine product
designed for use with the radar sensor (front).
 


¾ The radar sensor (front) includes a function for detecting soiling of the radar
sensor's front surface and informing the driver, however, depending on the
conditions, it may require time to detect or it may not detect plastic shopping bags,
ice or snow. If this occurs, the system may not operate correctly, therefore always
keep the radar sensor (front) clean.
 


¾ Do not install a grille guard.



¾ If the front part of the vehicle has been damaged in a vehicle accident, the position
of the radar sensor (front) may have moved. Stop the system immediately and
always have the vehicle inspected at an Authorized Mazda Dealer.
 


¾ Do not use the front bumper to push other vehicles or obstructions such as when
pulling out of a parking space. Otherwise, the radar sensor (front) could be hit and
its position deviated.
 


¾ Do not remove, disassemble, or modify the radar sensor (front).



¾ For repairs, replacement or paint work around the radar sensor (front), consult an
Authorized Mazda Dealer.
 


¾ Do not modify the suspension. If the suspension are modi¿ ed, the vehicle's posture
could change and the radar sensor (front) may not be able to correctly detect a
vehicle ahead or an obstruction.

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4–115
When Driving
i-ACTIVSENSE
N O T E
 


y In the following cases, the radar sensor (front) may not be able to detect vehicles ahead
or obstructions.
 


y The rear surface of a vehicle ahead does not reÀ ect radio waves effectively, such as
an unloaded trailer or an automobile with a loading platform covered by a soft top,
vehicles with a hard plastic tailgate, and round-shaped vehicles.
 


y Vehicles ahead with low vehicle height and thus less area for reÀ ecting radio waves.



y Visibility is reduced due to a vehicle ahead casting off water, snow, or sand from its
tires and onto your windshield.
 


y The trunk/luggage compartment is loaded with heavy objects or the rear passenger
seats are occupied.
 


y Ice, snow, or soiling is on the front surface of the front emblem.



y During inclement weather such as rain, snow, or sand storms.



y When driving near facilities or objects emitting strong radio waves. 



y In the following cases, the radar sensor (front) may detect vehicles in the opposite lane or
surrounding obstructions, or it may not be able to detect vehicles ahead or obstructions.
 


y The beginning and end of a curve.



y Roads with continuous curves.



y Narrow lane roads due to road construction or lane closures.



y The vehicle ahead enters the radar sensor's blind spot.



y The vehicle ahead is running abnormally due to accident or vehicle damage. 



y Roads with repeated up and down slopes



y Driving on poor roads or unpaved roads.



y The distance between your vehicle and the vehicle ahead is extremely short.



y A vehicle suddenly comes close such as by cutting into the lane. 



y To prevent incorrect operation of the system, use tires of the same speci¿ ed size,
manufacturer, brand, and tread pattern on all four wheels. In addition, do not use tires
with signi¿ cantly different wear patterns or tire pressures on the same vehicle. (Including
the temporary spare tire)
 


y If the battery power is weak, the system may not operate correctly.



y When driving on roads with little traf¿ c and few vehicles ahead or obstructions for the
radar sensor (front) to detect, Forward Obstruction Warning/Smart City Brake Support
(FOW/SCBS) warning light (amber) temporarily illuminates, however, this does not
indicate a problem.

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4–116
When Driving
i-ACTIVSENSE
Laser Sensor (Front)
The Smart City Brake Support (SCBS) laser sensor is installed at the top of the windshield
near the rearview mirror.


Laser sensor (front)

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:
 


¾ Never remove the sensor.



¾ A removed sensor will not meet the conditions for a class 1M laser under the IEC
60825-1 specifi cation and therefore eye safety cannot be assured.
 


¾ Do not peer into the sensor using optical instruments with a magnifi cation 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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4–117
When Driving
i-ACTIVSENSE

Laser sensor radiation data
Maximum average power: 45 mW
Pulse duration: 33 ns
Wavelength: 905 nm
Divergence angle (horizontal×vertical): 28 degrees×12 degrees
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4–118
When Driving
i-ACTIVSENSE
Radar Sensors (Rear)
The radar sensors (rear) for the rear vehicle monitoring system are equipped inside the rear
bumper, one each on the left and right sides.
Sedan


Radar sensors

Hatchback


Radar sensors

The surface area of the rear bumper near the radar sensors (rear) should always be clean so
that the rear vehicle monitoring system operates correctly. Do not apply stickers or similar
objects to the rear bumper.
Refer to Exterior Care on page 6-68 .
N O T E
Consult an Authorized Mazda Dealer for radar sensors (rear) repairs and replacement, or
repair, replacement or painting of the rear bumper near a radar sensors (rear).

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4–119
When Driving
Cruise Control
*Some models.
Cruise Control *
With cruise control, you can set and automatically maintain any speed of more than about
25 km/h (16 mph).
WARNING
Do not use the cruise control under the following conditions:
Using the cruise control under the following conditions is dangerous and could result in
loss of vehicle control.
 


¾ Hilly terrain



¾ Steep inclines



¾ Heavy or unsteady traffi c



¾ Slippery or winding roads



¾ Similar restrictions that require inconsistent speed
Cruise Control Switch

CANCEL switch
OFF switch ON switchRESUME switch
Cruise control
SET+/SET- switch

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4–120
When Driving
Cruise Control
Cruise Main Indicator Light
(Amber)/Cruise Set Indicator
Light (Green)

The indicator light has two colors.
Cruise Main Indicator Light (Amber)
The indicator light illuminates amber
when the cruise control system is
activated.
Cruise Set Indicator Light (Green)
The indicator light illuminates green when
a cruising speed has been set.
Activation/Deactivation
To activate the system, press the ON
switch. The cruise main indicator light
(Amber) illuminates.
To deactivate the system, press the OFF
switch.
The cruise main indicator light (Amber)
turns off.
WARNING
Always turn off the cruise control system
when it is not in use:
Leaving the cruise control system in an
activation-ready state while the cruise
control is not in use is dangerous as
the cruise control could unexpectedly
activate if the activation button is
accidentally pressed, and result in loss
of vehicle control and an accident.

N O T E
When the ignition is switched OFF, the
system status before it was turned off is
maintained. For example, if the ignition
is switched OFF with the cruise control
system operable, the system will be
operable when the ignition is switched ON
the next time.

To Set Speed
1. Activate the cruise control system
by pressing the ON switch. The
cruise main indicator light (Amber)
illuminates.
2. Accelerate to the desired speed, which
must be more than 25 km/h (16 mph).
3. Set the cruise control by pressing the
SET
or SET switch at the desired
speed. The cruise control is set at the
moment the SET
or SET switch is
pressed. Release the accelerator pedal
simultaneously. The cruise set indicator
light (Green) illuminates.

N O T E
 


y The cruise control speed setting cannot
be performed under the following
conditions:
 


y (Automatic transaxle) 
 The selector lever is in the P or N
position.
 


y (Manual transaxle) 
 The shift lever is in the neutral
position.
 


y The parking brake is applied. 



y Release the SET or SET switch at
the desired speed, otherwise the speed
will continue increasing while the SET

switch is pressed and held, and
continue decreasing while the SET

switch is pressed and held (except when
the accelerator pedal is depressed).
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