i-ACTIVSENSE
Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist the driver in averting collisions or reduce their severity in situations where they cannot be avoided.
Collision damage reduction in low vehicle speed range
Forward driving
Reverse driving
Collision damage reduction in medium/high speed range
Cruise Control Function
While this function is operating, the headway control operation is cancelled 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.
Do not use the cruise control function in the following locations:
Otherwise, it could lead to an accident.
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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)
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Steep down slopes (Set speed may be exceeded because sufficient engine braking cannot be applied)
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Slippery roads such as ice or snow-bound roads (Tyres 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 cancelled 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.
Switching to cruise control function
When the MODE switch is pressed until the system switches to the cruise main indication (white) while the MRCC system is turned on, the system switches to the cruise control function.
When the system switches to the cruise control function, the indicator and multi-information display notify the driver as follows:
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The MRCC set indication (green) or the MRCC main indication (white) is turned off, and the cruise main indication (white) is turned on.
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A message is displayed in the multi-information display.
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.
When the SET or SET
switch is pressed, the cruise set indication (green) is turned on and headway control begins.
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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.
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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
Press the SET 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).
Cancelling the function
Cancelling using OFF/CAN switch
When the OFF/CAN switch is pressed once, the cruise control function is cancelled.
Cancelling using MODE switch
When the MODE switch is pressed, the cruise control function is cancelled and the headway control function is made available for operation.
The cruise control function is cancelled automatically in the following cases. If the RES 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 OFF/CAN switch is pressed once.
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The brake pedal is depressed.
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The parking brake is applied.
(Manual transaxle)
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The clutch pedal is depressed.
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The shift lever is shifted to neutral position.
(Automatic transaxle)
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The selector lever is shifted to P or N position.
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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 cancelled.
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When the vehicle speed is less than 21 km/h (13 mph), the cruise control function is cancelled. 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.
Setting the System
Always verify the safety of the surrounding area when setting the ASL:
If the speed is set lower than the current vehicle speed, the vehicle speed is decreased to the set speed. Verify the safety of the surrounding area and keep a safer distance between vehicles ahead and behind you.
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Press the MODE switch to turn the system on.
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(With cruise control)
Press the SET
to set the speed. When the current vehicle speed is 30 km/h (20 mph) or more, the speed is set to the current vehicle speed. When the current vehicle speed is less than 30 km/h (20 mph), the speed is set to 30 km/h (20 mph).
(With Mazda Radar Cruise Control (MRCC) or Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function))
Press the SET
or SET
to set the speed. When the current vehicle speed is 30 km/h (20 mph) or more, the speed is set to the current vehicle speed. When the current vehicle speed is less than 30 km/h (20 mph), the speed is set to 30 km/h (20 mph).
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(With cruise control)
To increase the set speed, press the RES
switch continuously. The set speed can be adjusted in 10 km/h (5 mph) increments. The set speed can also be adjusted in about 1 km/h (1 mph) increments by pressing the RES
switch momentary. For example, the set speed increases about 4 km/h (4 mph) by pressing the RES
switch 4 times.
(With Mazda Radar Cruise Control (MRCC) or Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function))
To increase the set speed, press the SET
switch continuously. The set speed can be adjusted in 10 km/h (5 mph) increments. The set speed can also be adjusted in about 1 km/h (1 mph) increments by pressing the SET
switch momentary. For example, the set speed increases about 4 km/h (4 mph) by pressing the SET
switch 4 times.
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To decrease the set speed, press the SET
switch continuously. The set speed can be adjusted in 10 km/h (5 mph) decrements. The set speed can also be adjusted in about 1 km/h (1 mph) increments by pressing the SET
switch momentary. For example, the set speed decreases about 4 km/h (4 mph) by pressing the SET
switch 4 times.
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(With cruise control)
When the vehicle set speed is displayed in the instrument cluster, press the RES/
switch to set the displayed vehicle speed.
(With Mazda Radar Cruise Control (MRCC) or Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function))
When the vehicle set speed is displayed in the instrument cluster, press the RES switch to set the displayed vehicle speed.
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The system is temporarily cancelled when the vehicle is accelerated by depressing the accelerator pedal strongly, however, it resumes when the vehicle speed decreases to the set speed or less.
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The vehicle speed may exceed the set speed on a down slope.
Smart City Brake Support [Reverse] (SCBS R) (Some Models)
The SCBS R is a system which is designed to reduce damage in the event of a collision by operating the brake control (SCBS brake) when the system’s ultrasonic sensors detect an obstruction at the rear of the vehicle while driving at a speed of about 2 to 8 km/h (2 to 4 mph) and the system determines that a collision is unavoidable.

Do not rely completely on the SCBS R system:
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The SCBS R 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.
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To assure the correct operation of the SCBS R, heed the following cautions.
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Do not apply a sticker to an ultrasonic sensor (rear) (including transparent stickers). Otherwise, the ultrasonic sensor (rear) may not be able to detect vehicles or obstructions which could result in an accident.
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Do not disassemble an ultrasonic sensor (rear).
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If cracks or damage caused by flying gravel or debris is visible around an ultrasonic sensor (rear), stop using the SCBS R system immediately and have your vehicle inspected by an expert repairer, we recommend an Authorised Mazda Repairer. If the vehicle continues to be driven with cracks or scratch marks left around an ultrasonic sensor, the system may operate unnecessarily and cause an unexpected accident.
Refer to Stopping the Smart City Brake Support [Reverse] (SCBS R) System Operation (Search).
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Consult an expert repairer, we recommend an Authorised Mazda Repairer for rear bumper replacement.
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Do not modify the suspension:
If the vehicle height or inclination is changed, the SCBS R system may not operate correctly because it cannot detect obstructions correctly.
Do not apply a strong force to an ultrasonic sensor (rear):
When washing the vehicle, do not spray highly pressurised water against an ultrasonic sensor (rear), or rub it strongly. In addition, do not hit the rear bumper forcefully when loading and unloading cargo Otherwise, the sensors may not detect obstructions correctly which could cause the SCBS R system to not operate normally, or it could operate unnecessarily.
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When driving off-road in areas where there is grass or foliage, it is recommended that the SCBS R system be turned off.
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Always use tyres of the specified size and the same manufacturer, brand, and tread pattern on all 4 wheels. In addition, do not use tyres with significantly different wear patterns on the same vehicle. Otherwise, the SCBS R system may not operate normally.
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If ice or snow is stuck on the ultrasonic sensors (rear) they may not be able to detect obstructions correctly depending on the conditions. In such cases, the system may not be able to perform controls correctly. Always drive carefully and pay attention to the rear of the vehicle.
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The vehicle posture changes depending on the accelerator pedal, brake pedal and steering wheel operations, which could make it difficult for the system to recognise an obstruction, or it could facilitate unnecessary detection. In such cases, the SCBS R may or may not operate.
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The SCBS R system will operate under the following conditions.
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The engine is running.
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The change lever (manual transaxle vehicle) or the selector lever (automatic transaxle vehicle) is in the R (reverse) position.
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“Reverse Smart City Brake Support Malfunction” is not displayed in the multi-information display.
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The vehicle speed is between about 2 to 8 km/h (2 to 4 mph).
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The SCBS R is not turned off.
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The DSC is not malfunctioning.
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The SCBS R operates using ultrasonic sensors (rear) which detect obstructions at the rear by emitting ultrasonic waves and then receiving the returning waves reflected off the obstructions.
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In the following cases, the ultrasonic sensors (rear) cannot detect obstructions and the SCBS R may not operate.
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The height of the obstruction is low such as low walls or trucks with low loading platforms.
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The height of the obstruction is high such as trucks with high loading platforms.
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The obstruction is small.
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The obstruction is thin such as a signpost.
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The obstruction is positioned away from the centre of the vehicle.
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The surface of the obstruction is not pointed vertically relative to the vehicle.
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The obstruction is soft such as a hanging curtain or snow stuck to a vehicle.
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The obstruction is shaped irregularly.
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The obstruction is extremely close.
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In the following cases, the ultrasonic sensors (rear) cannot detect obstructions correctly and the SCBS R may not operate.
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Something is stuck on the bumper near an ultrasonic sensor (rear).
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The steering wheel is turned sharply, or the brake or accelerator pedal is operated.
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There is another obstruction near one obstruction.
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During inclement weather such as rain, fog and snow.
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High or low humidity.
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High or low temperatures
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Strong winds.
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The path of travel is not flat.
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Heavy luggage is loaded in the luggage compartment or on the rear seat.
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Objects such as a wireless aerial, fog light, or illuminated number plate is installed near an ultrasonic sensor (rear).
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The orientation of an ultrasonic sensor (rear) has deviated for reasons such as a collision.
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The vehicle is affected by other sound waves such as the horn, engine noise, ultrasonic sensor of another vehicle.
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In the following cases, an ultrasonic sensor (rear) may detect something as a target obstruction which could cause the SCBS R system to operate.
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Driving on a steep slope.
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Wheel blocks.
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Hanging curtains, gate poles such as at toll gates and railroad crossing.
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When travelling near objects such as foliage, barriers, vehicles, walls, and fences along a road.
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When driving off-road in areas where there is grass and forage.
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When passing through low gates, narrow gates, car washing machines, and tunnels.
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A towing bar is installed or a trailer is connected.
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(Manual transaxle)
If the vehicle is stopped by the Smart City Brake Support (SCBS) operation and the clutch pedal is not depressed, the engine stops.
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When the system operates, the user is notified by the multi-information display.
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The Smart City Brake Support (SCBS) warning indication (amber) turns on when the system has a malfunction.
Refer to Warning Indication/Warning Lights (Search).