Page 190 of 592
4–64
When Driving
Radar Sensor
Radar Sensor
Your vehicle is equipped with a radar sensor.
The following systems also use the radar sensor.
y Mazda Radar Cruise Control (MRCC) y Forward Obstruction Warning (FOW)
The radar sensor functions by detecting the radio waves refl ected off a vehicle ahead or an
obstruction sent from the radar sensor.
The radar sensor is mounted behind the front emblem.
Radar Sensor
If the Forward Obstruction Warning (FOW) warning light (amber) is illuminated, the area
around the radar sensor 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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Page 214 of 592
4–88
When Driving
Drive Selection
Drive Selection Switch
The SPORT mode indicator light in the
instrument cluster is illuminated while in
SPORT mode.
NOTE
y If the SET/ SET Switch of the Mazda
Radar Cruise Control (MRCC) system/
cruise control is pressed while in
SPORT mode, SPORT mode is
automatically switched off.
y When the ignition is switched off,
SPORT mode is also switch off.
y When SPORT mode is selected, the
transaxle may automatically shift down
or the vehicle speed may accelerate
depending on the vehicle speed.
SPORT Mode Indicator Light
Type A
Type B
The light is illuminated while in SPORT
mode.
NOTE
The indicator light fl ashes a few times to
indicate that the mode cannot be switched
to SPORT mode even if the drive select
switch is pressed under the following
conditions:
y ABS/TCS/DSC is operating y The Mazda Radar Cruise Control
(MRCC) system/cruise control is
operating.
y The vehicle is making a turn or driving
on a curved road.
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Page 216 of 592
*Some models.4–90
When Driving
Mazda Radar Cruise Control (MRCC)
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 distan\
ce to a vehicle ahead,
and by presetting the vehicle speed between 30 km/h (19 mph) and 145 k\
m/h (90 mph), the
driver is freed from having to constantly use the accelerator or brake p\
edals.
*1 Headway Control: Control of the distance between your vehicle and the ve\
hicle ahead detected by the Mazda Radar Cruise Control (MRCC) system.
Additionally, if your vehicle starts closing in on the vehicle ahead because, for ex\
ample, 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.
Use the Mazda Radar Cruise Control (MRCC) system on expressways and ot\
her 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 safe distance from
vehicles ahead or on-coming vehicles.
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Page 217 of 592
4–91
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:
Page 218 of 592
![MAZDA MODEL 3 5-DOOR 2015 Owners Manual 4–92
When Driving
Mazda Radar Cruise Control (MRCC)
y In the following cases, the warnings may not activate even if your vehic\
le starts closing in
on the vehicle ahead.
y](/manual-img/28/40996/w960_40996-217.png "MAZDA MODEL 3 5-DOOR 2015 Owners Manual 4–92
When Driving
Mazda Radar Cruise Control (MRCC)
y In the following cases, the warnings may not activate even if your vehic\
le starts closing in
on the vehicle ahead.
y")
4–92
When Driving
Mazda Radar Cruise Control (MRCC)
y In the following cases, the warnings may not activate even if your vehic\
le 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 trans\
axle) 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 spee\
d 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 4-21 .
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Page 219 of 592
4–93
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.
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Page 220 of 592
4–94
When Driving
Mazda Radar Cruise Control (MRCC)
Setting the System
To Activate
To activate the system, press the ON switch.
CANCEL switch
Switch Switch RESUME 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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Page 221 of 592
4–95
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 are
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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