2013-2016 Mazda Cx-5 SUV i-ACTIVSENSE -> Mazda Radar Cruise Control (MRCC) User Manual
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i-ACTIVSENSE -> Mazda Radar Cruise Control (MRCC) for Your Mazda Cx-5 SUV First Generation (2013-2016)

When Driving  
i-ACTIVSENSE  
Mazda Radar Cruise Control (MRCC)í  
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, 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 sufficient 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.  
4-116 íSome models.  
When Driving  
i-ACTIVSENSE  
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 specifically, 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 sufficiently 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:  
Ø Roads with sharp curves and where vehicle traffic is heavy and there is insufficient  
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).  
Ø 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).  
Ø Slippery roads such as ice or snow-bound roads (The tires could spin causing you  
to lose vehicle control).  
Ø 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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When Driving  
i-ACTIVSENSE  
NOTE  
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The Mazda Radar Cruise Control (MRCC) system operates when all of the following conditions  
are met.  
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The vehicle speed is 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 Smart Brake Support (SBS) is not malfunctioning.  
The Dynamic Stability Control (DSC) is operating normally.  
The selector lever is in the drive (D) position or manual (M) position (manual mode).  
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In the following cases, the warnings may not activate even if your vehicle starts closing in on the  
vehicle ahead.  
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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.  
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The following are not detected as physical objects.  
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Vehicles approaching in the opposite direction  
Pedestrians  
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Stationary objects (stopped vehicles, obstructions)  
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If a vehicle ahead is traveling at an extremely low speed, the system may not detect it correctly.  
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During headway control travel, do not set the system on two-wheeled vehicles such as motorcycles  
and bicycles.  
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Do not use the Mazda Radar Cruise Control (MRCC) system under conditions in which the close  
proximity warnings are frequently activated.  
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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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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.  
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The brake lights are illuminated while the Mazda Radar Cruise Control (MRCC) automatic  
braking is operating.  
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The Mazda Radar Cruise Control (MRCC) warning light (amber) turns on when the system has a  
malfunction.  
Refer to Warning/Indicator Lights on page 4-20.  
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The headway control operation can be canceled and the system can be switched to only cruise  
control.  
Refer to Cruise Control Function on page 4-123.  
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When Driving  
i-ACTIVSENSE  
qMazda Radar Cruise Control (MRCC) Display Indication  
The setting status and operation conditions of the Mazda Radar Cruise Control (MRCC)  
system are indicated in the multi-information display.  
Vehicle ahead display  
MRCC Distance between  
vehicle display  
MRCC Set vehicle speed  
qClose 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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When Driving  
i-ACTIVSENSE  
qSetting the System  
CANCEL switch  
RES switch  
switch  
switch  
Cruise control  
SET+/SET- switch  
OFF switch  
ON switch  
When the ON switch is pressed, 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 display of the instrument cluster.  
NOTE  
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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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When the ON switch is pressed continuously for about 2 seconds while the Mazda Radar Cruise  
Control (MRCC) system is turned on, the system switches the function to only cruise control.  
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When Driving  
i-ACTIVSENSE  
How to Set the Speed  
How to Set the Distance Between  
Vehicles During Headway Control  
1. Adjust the vehicle speed to the desired  
setting using the accelerator pedal.  
The distance between vehicles is set to a  
shorter distance each time the  
switch  
2. Headway control begins when the  
SET or SET switch is pressed.  
The set speed and the inter-vehicle  
distance display filled with white lines  
are displayed. The Mazda Radar Cruise  
Control (MRCC) indicator light (green)  
is indicated simultaneously.  
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-vehi-  
cles guideline  
(at 80 km/h (50 mph)  
vehicle speed)  
Indication on display  
Travel status  
Display  
During travel at constant  
speed  
Long  
(about 50 m (164 ft))  
During travel under  
headway control  
Medium  
(about 40 m (131 ft))  
NOTE  
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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.  
Short  
(about 30 m (98 ft))  
Extremely short  
(about 25 m (82 ft))  
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Headway control is not possible if the  
vehicle ahead is driving faster than the set  
speed. Adjust the system to the desired  
vehicle speed using the accelerator pedal.  
NOTE  
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The distance between vehicles differs  
depending on the vehicle speed, and the  
slower the vehicle speed, the shorter the  
distance.  
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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.  
4-121  
When Driving  
i-ACTIVSENSE  
Changing the Set Vehicle Speed  
NOTE  
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When accelerating using the SET switch  
Changing the set vehicle speed 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 display in the  
Press the SET switch to accelerate.  
Press the SET switch to decelerate.  
The set vehicle speed changes as follows  
each time the SET switch is pressed.  
Short press  
Long press  
1 km/h (1 mph)  
10 km/h (5 mph)  
instrument cluster.  
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When depressing the accelerator pedal, the  
inter-vehicle distance display in the display  
in the instrument cluster changes to the  
white-line display.  
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.  
NOTE  
For example, the set vehicle speed is changed  
by pressing the SET switch four times as  
follows:  
The vehicle speed accelerates or decelerates  
by 4 km/h (4 mph).  
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.  
To Deactivate  
The Mazda Radar Cruise Control  
(MRCC) is canceled when the OFF  
switch is pressed.  
When the system is temporarily  
canceled  
CAUTION  
The warnings and brake control do  
not operate while the accelerator  
pedal is depressed.  
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.  
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The CANCEL switch is pressed.  
The brake pedal is depressed.  
The parking brake is applied.  
The selector lever is shifted to park (P),  
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neutral (N) or reverse (R).  
4-122  
When Driving  
i-ACTIVSENSE  
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In the following cases, the “MRCC  
Cancelled” indication is displayed and  
the beep sounds one time.  
WARNING  
Do not use the cruise control function  
in the following locations:  
Otherwise, it could lead to an  
accident.  
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The vehicle speed decreases to less  
than 25 km (16 mph).  
The DSC has operated.  
The TCS has operated for a certain  
period of time.  
The Smart City Brake Support  
(SCBS) has operated.  
The Smart Brake Support (SBS) has  
operated.  
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Ø Roads with sharp curves and  
where vehicle traffic is heavy and  
there is insufficient space between  
vehicles. (Driving under these  
conditions using the cruise control  
function is not possible)  
Ø Steep down slopes (Set speed may  
be exceeded because sufficient  
engine braking cannot be applied)  
Ø Slippery roads such as ice or  
snow-bound roads (Tires could  
spin causing you to lose vehicle  
control)  
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When traveling on a down slope for  
a long period of time.  
There is a problem with the system.  
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NOTE  
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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.  
Always drive carefully:  
The warnings and brake control will  
not operate after the headway  
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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.  
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.  
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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Switching to cruise control function  
qCruise 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 a message  
is displayed in the multi-information  
display at the same time.  
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.  
4-123  
When Driving  
i-ACTIVSENSE  
To increase speed using accelerator  
pedal  
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.  
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  
How to set the speed  
Press the SET switch continuously and  
release the switch at the desired speed.  
The set speed can be adjusted  
Adjust the system to the desired vehicle  
speed using the accelerator pedal.  
Cruise control function begins when the  
incrementally (1 km/h (1 mph)  
SET  
or SET switch is pressed.  
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).  
NOTE  
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The system may not be able to maintain the  
set speed constantly depending on driving  
conditions such as steep up or down slopes.  
The speed will continue increasing while  
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Cancelling the function  
the SET  
speed will continue decreasing while the  
SET switch is pressed and held.  
switch is pressed and held. The  
Cancelling using OFF switch  
When the OFF switch is pressed, the  
cruise control function is cancelled.  
How to increase the set speed  
Cancelling using ON switch  
The set speed can be increased using the  
following operations:  
When the ON switch is pressed  
continuously for about 2 seconds, the  
cruise control function is canceled and the  
headway control function is made  
available for operation.  
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).  
The cruise control function is canceled  
automatically in the following cases. If the  
RESUME switch is pressed while the  
vehicle speed is 25 km/h (16 mph) or  
higher, the speed returns to the original set  
speed.  
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The CANCEL switch is pressed.  
The brake pedal is depressed.  
The parking brake is applied.  
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The selector lever is shifted to P or N  
position.  
4-124  
When Driving  
i-ACTIVSENSE  
NOTE  
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If the vehicle speed decreases by about 15  
km/h (9.4 mph) or more than the set speed,  
the cruise control function may be  
canceled.  
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When the vehicle speed is less than 21 km/h  
(13 mph), the cruise control function is  
canceled. In this case, the vehicle speed will  
not return to the original set speed even if  
the vehicle is accelerated to 25 km/h (16  
mph) or higher and the RES switch is  
pressed. Reset the cruise control function.  
4-125  

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