cruise control MAZDA MODEL 3 HATCHBACK 2014 (in English) User Guide

4–92
When Driving
Mazda Radar Cruise Control (MRCC)
Do not use the Mazda Radar Cruise Control (MRCC) system 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. Roads where frequent and repetitive acceleration and
deceleration occur (Driving under these conditions using the Mazda Radar Cruise
Control (MRCC) system is not possible).
 


¾ 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).
 


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


¾ 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.
NOTE




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 Forward Obstruction Warning (FOW) indicator light (amber) does not illuminate.



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

(Manual transaxle)




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



y The clutch pedal is not depressed.

(Automatic transaxle)




y The selector lever is in the drive (D) position or manual (M) position (manual mode).
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4–93
When Driving
Mazda Radar Cruise Control (MRCC)
 


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 (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.
 


y 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 traveling at a constant speed and following a
vehicle ahead.
 


y The Mazda Radar Cruise Control (MRCC) warning light (amber) fl ashes when the
system has a malfunction.
  Refer to Warning Lights on page 4-22 .
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4–94
When Driving
Mazda Radar Cruise Control (MRCC)
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 safe distance from the vehicle ahead.
Additionally, always keep a safe distance
from the vehicles behind you.
NOTE
When the active driving display is closed,
only the warning sound activates to alert.
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4–95
When Driving
Mazda Radar Cruise Control (MRCC)
Setting the System
To Activate
To activate the system, press the ON switch.
CANCEL switch
switch switchRESUME switch
OFF switch ON switch
Cruise control
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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4–96
When Driving
Mazda Radar Cruise Control (MRCC)
How to Set the Speed
1. Adjust the vehicle speed to the desired
setting using the accelerator pedal.
2. Headway control begins when the
SET
or SET switch is pressed. The
set speed and the inter-vehicle distance
display fi lled with white lines is
displayed. The Mazda Radar Cruise
Control (MRCC) indicator light (green)
is indicated simultaneously.
Travel status Display
During travel at constant
speed
During travel under
headway control
NOTE
 


y If a vehicle ahead is detected while
traveling at a constant speed, the
vehicle-ahead indication is displayed
and headway control is performed.
Additionally, when a vehicle ahead is
no longer detected, the vehicle-ahead
indication turns off and the system
switches back to travel at constant
speed.
 


y If you are driving the vehicle at a speed
faster than the set speed, headway
control on the vehicle ahead is not
possible Adjust the system to the desired
vehicle speed using the accelerator
pedal.
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4–97
When Driving
Mazda Radar Cruise Control (MRCC)
How to Set the Distance Between
Vehicles During Headway Control
The distance between vehicles is set to a
shorter distance each time the
switch is
pressed. The distance between vehicles is
set to a longer distance by pressing the
switch. The distance-between-vehicles can
be set to 4 levels; Long, medium, short,
and extremely short distance.
Distance-between-
vehicles guideline
(at 80 km/h (50 mph)
vehicle speed) Indication on display
Long (about 50 m (164
ft))
Medium (about 40 m
(131 ft))
Short (about 30 m (98
ft))
Extremely short (about
25 m (82 ft))
NOTE
 


y The distance between vehicles differs
depending on the vehicle speed, and the
slower the vehicle speed, the shorter the
distance.
 


y When the ignition is switched to ACC
or OFF and then the engine is started
again, the system automatically sets
the distance between vehicles to the
previous setting.
Changing the Set Vehicle Speed
Changing the set vehicle speed using the
SET
/ SET switch
Press the SET
switch to accelerate. Press
the SET
switch to decelerate. The set
vehicle speed changes as follows each
time the SET
/ SET switch is pressed.
Short press 1 km/h (1 mph)
Long press 10 km/h (5 mph)
NOTE
For example, the set vehicle speed is
changed by pressing the SET
/ SET
switch four times as follows:
The vehicle speed accelerates or
decelerates by 4 km/h (4 mph).
To accelerate using 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.
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4–98
When Driving
Mazda Radar Cruise Control (MRCC)
NOTE
 


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 display in the instrument cluster
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 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.
 


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) (automatic
transaxle).
 


y The shift lever is in the reverse (R)
position (manual transaxle).
 


y In the following cases, the “MRCC
Cancelled” indication is displayed and
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
 When traveling on a down slope for a
long period of time.
 

y
 There is a problem with the system.


y
 The engine stalls.

(Manual transaxle)



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

y
 The clutch is depressed for a certain
period of time.
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4–99
When Driving
Mazda Radar Cruise Control (MRCC)
NOTE
 


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 the Mazda Radar Cruise Control
(MRCC) system has been temporarily
canceled, you can return to the
previously set vehicle speed by pressing
the RESUME switch after the following
conditions have been met.
 


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


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


y If the SET / SET or RESUME switch
is pressed before a certain period of
time has elapsed since the system was
automatically canceled while driving
for a long time on a down slope,
“MRCC Not available” is displayed in
the display.
 


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
RESUME switch is pressed.
Shift-up/Shift-down Request
Display (Manual Transaxle)
The shift-up or shift-down request display
in the display of the instrument cluster
may be displayed while the Mazda
Radar Cruise Control (MRCC) system
is operating. When this occurs, shift
gears because the gear position is not
appropriate.
Request Indication on display
Shift up
Shift down
NOTE
 


y If the gears are not shifted up even
though the shift-up request indication
is displayed, load will be applied
to the engine and the Mazda Radar
Cruise Control (MRCC) system may
be automatically canceled or engine
damage could occur.
 


y If the gears are not shifted down
even though the shift-down request
indication is displayed, the Mazda
Radar Cruise Control (MRCC) system
may be automatically canceled or
engine stalling could occur.
Radar Sensor Handling
The Mazda Radar Cruise Control (MRCC)
radar sensor is installed on the backside of
the radiator grille.
Refer to Radar Sensor on page 4-65 .
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*Some models.4–10 0
When Driving
Cruise Control
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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4–101
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.
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.
NOTE
 


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).
 


y On a steep grade, the vehicle may
momentarily slow down while
ascending, or speed up while
descending.
 


y Cruise control will cancel if the vehicle
speed decreases below 21 km/h (13
mph) when cruise is activated, such as
when climbing a steep grade.
 


y Cruise control may cancel at about 15
km/h (9 mph) below the preset speed,
such as when climbing a long, steep
grade.
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