i-ACTIVSENSE
i-ACTIVSENSE
i-ACTIVSENSE
i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support systems which make use of cameras and sensors. The systems consist of active safety and pre-crash safety systems.
These systems are designed to assist the driver in safer driving by reducing the load on the driver and helping to avert collisions or reduce their severity. However, because each system has its limitations, always drive carefully and do not rely solely on the systems.
Active Safety Technology
Active Safety Technology supports safer driving by helping the driver to recognize potential hazards and avert accidents.
Driver awareness support systems
Nighttime visibility
Left/right side and rear side detection
Road sign recognition
Inter-vehicle distance recognition
Front obstruction detection when approaching a crosswalk
Rear obstruction detection when leaving a parking space
Full-surround recognition
Driver fatigue detection
Driver support systems
Inter-vehicle distance
Lane departure
Lane keeping
Inter-vehicle distance and lane keeping
Pre-Crash Safety Technology
Pre-crash safety technology is designed to assist the driver in averting collisions or reducing their severity in situations where they cannot be avoided.
Collision damage reduction
Camera and Sensors
i-ACTIVSENSE uses the following detection systems.
Vehicle front

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Forward Sensing Camera (FSC)
Refer to Forward Sensing Camera (FSC) (Search).
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Front camera
Refer to Front Camera/Side Cameras/Rear Camera (Search).
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Side cameras
Refer to Front Camera/Side Cameras/Rear Camera (Search).
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Front side radar sensor
Refer to Front Side Radar Sensor (Search).
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Front radar sensor
Refer to Front Radar Sensor (Search).
Vehicle rear

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Rear camera
Refer to Front Camera/Side Cameras/Rear Camera (Search).
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Rear ultrasonic sensor
Refer to Rear Ultrasonic Sensor (Search).
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Rear side radar sensor
Refer to Rear Side Radar Sensor (Search).
Inside of vehicle

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Driver monitoring camera
Refer to Driver Monitoring Camera (Search).
i-ACTIVSENSE Status Symbol (Warning/Risk Avoidance Support System) (Some Models)
i-ACTIVSENSE OFF Switch (Some Models)
When the i-ACTIVSENSE OFF switch is pressed, the following systems are canceled and the i-ACTIVSENSE OFF symbol (Warning/risk avoidance support system) in the instrument cluster is displayed.
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Lane Departure Warning System (LDWS)
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Blind Spot Monitoring (BSM)
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Distance & Speed Alert (DSA)
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Front Cross Traffic Alert (FCTA)
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Rear Cross Traffic Alert (RCTA)
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Lane-keep Assist System (LAS)
If the i-ACTIVSENSE OFF switch is pressed again, the systems return to their original operation status and the i-ACTIVSENSE OFF symbol (Warning/risk avoidance support system) turns off.
i-ACTIVSENSE OFF switch

i-ACTIVSENSE OFF symbol (Warning/risk avoidance support system)

If the power switch is switched OFF while you have canceled the systems using the i-ACTIVSENSE OFF switch, the systems are automatically enabled the next time the power switch is switched ON. However, if the systems are canceled using [Settings] in Mazda Connect, the systems are not automatically enabled.
You can select systems which you want to cancel using [Settings] in Mazda Connect.
Refer to the Settings section in the Mazda Connect Owner's Manual.
Rear Ultrasonic Sensor (Some Models)
Vehicle Ahead Close Proximity Warning
When the distance between your vehicle and a vehicle ahead is close, the i-ACTIVSENSE status symbol (Warning/risk avoidance support system) changes from green to amber and the warning indication is displayed on the multi-information display.
Check the surrounding conditions and keep a safe distance from the vehicle ahead.

Driver Monitoring (DM) Display
When the Driver Monitoring (DM) detects driver fatigue or sleepiness, it activates the warning sound and displays an alert in the instrument cluster.
Warning pattern (caution) (white)

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“Time for a Break” message is displayed
Warning pattern (warning) (amber)

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“Time for a Break” message is displayed
Rear Cross Traffic Alert (RCTA)
The RCTA system is designed to assist the driver in checking the area to the rear left and right sides of your vehicle while your vehicle is reversing by alerting the driver to the presence of vehicles approaching the rear of your vehicle.
The RCTA system detects vehicles approaching from the rear left and right sides of your vehicle and the rear of your vehicle while your vehicle is being reversed out of a parking space, and notifies the driver of possible danger using the Blind Spot Monitoring (BSM) warning indicator lights and the warning buzzer.

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Your vehicle
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Detection areas
Always check the surrounding area visually before actually putting the vehicle in reverse:
The system is only designed to assist you in checking for vehicles at the rear when putting the vehicle in reverse. Due to certain limitations with the operation of this system, the Blind Spot Monitoring (BSM) warning indicator lights may not flash or it might be delayed even though a vehicle is behind your vehicle. Always make it your responsibility as a driver to check the rear.
RCTA operation
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The RCTA system operates when the selector lever is shifted to the reverse (R) position.
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If there is the possibility of a collision with an approaching vehicle, the Blind Spot Monitoring (BSM) warning indicator lights flashes and the warning beep is activated simultaneously.
Rear view monitor (vehicles with Rear view monitor)
The RCTA warning indication in the rearview monitor also synchronizes with the Blind Spot Monitoring (BSM) warning indicator light on the door mirrors.
360°view monitor (vehicles with 360°view monitor)
The RCTA warning indication in the 360°view monitor also synchronizes with the Blind Spot Monitoring (BSM) warning indicator light on the door mirrors.

Function for canceling illumination dimmer
If the BSM warning indicator lights turn on when the parking lights are turned on, the brightness of the BSM warning indicator lights is dimmed.
If the BSM warning indicator lights are difficult to see due to glare from surrounding brightness when traveling on snow-covered roads or under foggy conditions, press the dimmer cancellation button to cancel the dimmer and increase the brightness of BSM warning indicator lights when they turn on.
Refer to Dashboard Illumination (Search).
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The system may operate under the following conditions even if a vehicle is not approaching.
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An object that reflects the radio waves of the radar such as a parked vehicle, guardrail, or wall is directly next to your vehicle.
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A vehicle approaching from the rear left and right side of your vehicle slows down.
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A vehicle approaching from the rear left and right side of your vehicle makes a right or left turn directly in front of your vehicle.
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A vehicle overtakes your vehicle while it is stopped.
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Your vehicle is in an area where strong radio waves or electrical noise may occur such as near a television tower or power plant.
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In the following cases, the i-ACTIVSENSE warning indication/warning light turns on and operation of the system is stopped. If the i-ACTIVSENSE warning indication/warning light remains illuminated, have the vehicle inspected at an Authorized Mazda Dealer as soon as possible.
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Some problem with the system including the Blind Spot Monitoring (BSM) warning indicator lights has occurred.
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A large deviation in the installation position of a rear side radar sensor on the vehicle has occurred.
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There is a large accumulation of snow or ice on the rear bumper near a rear side radar sensor.
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Driving on snow-covered roads for long periods.
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The temperature near the radar sensors becomes extremely hot due to driving for long periods on slopes during the summer.
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The lead-acid battery voltage has decreased.
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Under the following conditions, the rear side radar sensor cannot detect approaching vehicles or it might be difficult to detect them, and the system may not operate normally.
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The vehicle speed when reversing is about 15 km/h (9 mph) or faster.
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The rear side radar sensor detection area is obstructed by a nearby wall or parked vehicle. (Reverse the vehicle to a position where the radar sensor detection area is no longer obstructed.)
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Your vehicle
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A vehicle is approaching directly from the rear of your vehicle.
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Your vehicle
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The vehicle is parked at an angle.
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Your vehicle
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Directly after the RCTA system becomes operable using [Settings] in Mazda Connect.
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Radio wave interference from a radar sensor equipped on a nearby parked vehicle.
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In the following cases, it may be difficult to view the illumination/flashing of the Blind Spot Monitoring (BSM) warning indicator lights equipped on the door mirrors.
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Snow or ice adheres to the door mirrors.
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The front door glass is fogged or covered in snow, frost or dirt.
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Turn off the RCTA system while pulling a trailer or while an accessory such as a bicycle carrier is installed to the rear of the vehicle. Otherwise, the radio waves emitted by the radar will be blocked causing the system to not operate normally.
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The rear side radar sensor of the RCTA may be regulated under the radio wave related laws of the country where the vehicle is driven. If this system is used abroad, it may be necessary to turn off the system.
Refer to Rear Side Radar Sensor (Search).
Mazda Radar Cruise Control with Stop & Go function (MRCC with Stop & Go function) Display Indication
The setting status and operation conditions of the MRCC with Stop & Go function are indicated on the multi-information display and the active driving display.
Multi-information Display (Basic display)

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Vehicle ahead display
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MRCC with Stop & Go function set vehicle speed
Multi-information Display (i-ACTIVSENSE display)

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Vehicle ahead display
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MRCC with Stop & Go function set vehicle speed
Active driving display

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Vehicle ahead display
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MRCC with Stop & Go function set vehicle speed
If there is a problem with the MRCC with Stop & Go function, messages are displayed on the displays. Check the details of the problem and then have your vehicle inspected by an Authorized Mazda Dealer.
Refer to If a Warning Light Turns On or Flashes (Search).
Traffic Jam Assist (TJA) (Some Models)
Traffic Jam Assist (TJA)
The TJA is a system designed to reduce driver fatigue during traffic jams when driving on expressways or highways.
The TJA consists of a headway control function and a steering assist function.
Headway control function
The function performs headway control to maintain a constant distance between your vehicle and a vehicle ahead at a preset vehicle speed without you having to depress the accelerator or brake pedal.
Steering assist function
When vehicle lane lines are detected, the function assists your steering operation to follow the vehicle lane lines.
When vehicle lane lines are not detected, the function assists your steering operation to follow the trajectory of the vehicle ahead.
Also refer to the following information before using the TJA.
Do not rely completely on the TJA and always drive carefully:
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The TJA is not an automated driving system. Therefore, the function has limitations. Do not rely completely on the system and always stay on course using the steering wheel.
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Set a vehicle speed within the speed limit according to the road conditions and the weather conditions.
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The TJA may not be able to detect a vehicle ahead depending on the type of vehicle ahead and its conditions, the weather conditions, and the road conditions. Additionally, the system might be unable to decelerate sufficiently if the vehicle ahead applies the brakes suddenly or another vehicle cuts into your lane, which could result in an accident.
Do not use the system under the following conditions. Otherwise, it may result in an accident:
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The vehicle is driven on roads other than expressways and highways.
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The vehicle is driven on roads with sharp curves or with heavy traffic where sufficient distances between vehicles cannot be kept.
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The vehicle is driven on roads where acceleration and deceleration are frequently repeated.
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The vehicle is exiting the main lane on an expressway to enter an interchange, a rest area, or a parking area.
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The vehicle is driven on slippery roads such as icy roads, snow-covered roads, and unpaved roads.
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The vehicle is driven on a long downslope.
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The vehicle is driven on a steep slope.
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A two-wheeled vehicle such as a motorcycle or bicycle is traveling ahead.
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The vehicle is being towed.
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Proximity warnings activate frequently.
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Under bad weather conditions (rain, fog, and snow).
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Tires with insufficient tread are used.
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The tire pressures are not adjusted to the specified pressure.
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Tires other than the specified size are used, such as when tire chains or temporary spare tires are used.
Switch the TJA off when it is not being used.
Leaving the TJA on when it is not in use is dangerous as it could operate unexpectedly, resulting in an accident.
Do not get out of the vehicle while the stop hold control is operating.
Getting out of the vehicle while the stop hold control is operating is dangerous as the vehicle may move unexpectedly and result in an accident. Before leaving the vehicle, switch the TJA off, shift the selector lever to the P position, and apply the parking brake.
Heed the following cautions so that the TJA can operate normally.
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Do not modify the vehicle's suspensions.
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Always use wheels of the specified size for the front and rear wheels. Consult an Authorized Mazda Dealer for tire replacement.
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The TJA does not operate with the following objects.
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On-coming vehicles
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Pedestrians
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Stationary objects (such as 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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A brake operation sound may be heard by the TJA control, however, it does not indicate a problem.
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The brake lights turn on while the brakes and stop hold control are operating by the TJA control.
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When any of the following conditions is met, the TJA may not be able to detect white (yellow) lane lines or vehicles ahead correctly and the TJA may not operate normally.
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A condition under which the Forward Sensing Camera (FSC) cannot detect a target object is met.
Refer to Forward Sensing Camera (FSC) (Search).
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The Forward Sensing Camera (FSC) cannot recognize the area in front of the vehicle.
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The visibility of white (yellow) lane lines is poor.
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There are multiple white (yellow) lane lines.
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There is a misleading line which looks like a white (yellow) lane line.
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The distance to the vehicle ahead is close.
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The width of the vehicle lane is narrow or wide.
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A vehicle ahead is driving erratically.
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A vehicle ahead veers off course from your vehicle's line of travel.
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The vehicle is driven through an intersection, a junction, or a fork in the road.
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Steering Assist Limit Warning
If the steering assist function cannot keep the vehicle within the lane lines, a warning sound is activated and the lane line of the direction reaching the limit is displayed on the multi-information display to urge you to operate the steering wheel.

Smart Brake Support (SBS) (Some Models)
Top View/Front View
Use the top view/front view to assist in checking the safety of the surrounding area when accelerating from a stop, parking, or stopping the vehicle.
Display range

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Target object
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In the top view screen, the areas in black at the front and rear of the vehicle image and the seams where each of the camera images merge are blind spots.
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Because images displayed in the top view screen are processed from each camera, the top view screen may display in the following ways.
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Depending on the surrounding environment, the color of objects may be displayed on the screen in a color different from the actual one.
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Depending on the surrounding environment, it may take a few seconds for the color of the screen display to adjust.
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Obstructions displayed in the front view may not display on the top view screen.
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If the position or angle of each camera changes due to tilting of the vehicle, the image may appear distorted.
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Lines on the road may appear distorted at the seams where each of the camera images merge.
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The screen area for each camera may appear bright/dark depending on the illumination level around any of the cameras.
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Viewing the screen

Display/Icon |
Content |
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(1) |
Tire icon |
Indicates the tire direction. Moves in conjunction with the steering wheel operation. |
(2) |
Projected vehicle path lines (yellow & red) |
Indicates the approximate projected path of the vehicle. Moves in conjunction with the steering wheel operation. a) Indicates the path where the edge of the front bumper is expected to travel. b) Indicates the path where the inner side of the vehicle is expected to travel. |
(3) |
Extended vehicle width lines (blue) |
Indicates the approximate width of the vehicle. |
(4) |
Projected vehicle path distance guide lines (yellow & red) |
Indicates the distance (from front end of bumper) in front of the vehicle.
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The parking sensor detection range has limitations. For example, obstructions closing in from the side and objects short in height may not be detected. Always confirm the safety around the vehicle visually when driving.
For details, refer to the parking sensor obstruction detection indication and warning sound.
Refer to Parking Sensor System (Search).
The setting can be changed so that the projected vehicle path lines are not displayed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
How to use the projected vehicle path line function

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(Screen display)
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(Actual condition)
Make sure that there are no obstructions within the projected vehicle path lines.
Drive the vehicle forward while turning the steering wheel so that no obstructions come within the projected vehicle path lines.
Side View
Use the side view to assist in checking the safety of the surrounding area when accelerating from a stop, parking, or stopping the vehicle.
Display range

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Target object
Viewing the screen

Display/Icon |
Content |
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(1) |
Projected vehicle path lines (yellow) |
Indicates the approximate projected path of the vehicle. Moves in conjunction with the steering wheel operation. The projected vehicle path lines (yellow) indicate the path the inner side of the vehicle is expected to travel. |
(2) |
Vehicle parallel guide lines (blue) |
Indicates the approximate vehicle width including the door mirrors. |
(3) |
Vehicle front end guide lines (blue) |
Indicates the point about 0.25 m (9.84 in) from the front edge of the vehicle (front edge of the bumper). |
The setting can be changed so that the projected vehicle path lines are not displayed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
How to use the projected vehicle path line function

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(Screen display)
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(Actual condition)
Make sure that there are no obstructions within the projected vehicle path lines.
Turn the steering wheel so that the projected vehicle path lines travel inside of the obstruction (A), and drive the vehicle forward until it passes the obstruction.
If the projected vehicle path lines are on an obstruction (B) or outside of the obstruction (C), the vehicle may contact the obstruction when turning the vehicle sharply.
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The parking sensor detection range has limitations. For example, obstructions closing in from the side and objects short in height may not be detected. Always confirm the safety around the vehicle visually when driving.
For details, refer to the parking sensor obstruction detection indication and warning sound.
Refer to Parking Sensor System (Search).
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Do not turn the steering wheel any more until the vehicle has passed the obstruction, even if the obstruction is not visible on the side view image. If the steering wheel is turned even more, the vehicle may contact the obstruction if it is turned sharply.
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Because there might be a difference between the image displayed on the screen and the actual conditions, always check the safety of the surrounding area using the mirrors and directly with your eyes when driving.
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Even though the object displayed on the screen, such as a road curb or a division line of a parking space, and the vehicle parallel guide lines appear parallel, they may not actually be parallel.
Top View/Rear View
Use the top view/rear view to assist in checking the safety of the surrounding area when accelerating from a stop, parking, or stopping the vehicle.
Range of displayed screen image

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Target object
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In the top view screen, the areas in black at the front and rear of the vehicle image and the seams where each of the camera images merge are blind spots.
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Because images displayed in the top view screen are processed from each camera, the top view screen may display in the following ways.
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Depending on the surrounding environment, the color of objects may be displayed on the screen in a color different from the actual one.
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Depending on the surrounding environment, it may take a few seconds for the color of the screen display to adjust.
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Obstructions displayed in the rear view may not display on the top view screen.
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If the position or angle of each camera changes due to tilting of the vehicle, the image may appear distorted.
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Lines on the road may appear distorted at the seams where each of the camera images merge.
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The screen area for each camera may appear bright/dark depending on the illumination level around any of the cameras.
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Viewing the screen

Display/Icon |
Content |
|
---|---|---|
(1) |
Tire icon |
Indicates the tire direction. Moves in conjunction with the steering wheel operation. |
(2) |
Projected vehicle path lines (yellow & red) |
Indicates the approximate projected path of the vehicle. Moves in conjunction with the steering wheel operation. a) Indicates the path where the edge of the rear bumper is expected to travel. b) Indicates the path where the outer side of the vehicle is expected to travel. |
(3) |
Extended vehicle width lines (blue) |
These guide lines indicate the approximate width of the vehicle. |
(4) |
Projected vehicle path distance guide lines (yellow & red) |
These guide lines indicate the approximate distance to a point measured from the rear of the vehicle (from the end of the bumper).
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The setting can be changed so that the projected vehicle path lines are not displayed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
How to use the projected vehicle path line function
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The front of the vehicle swings out wide when turning the steering wheel while reversing. Maintain sufficient distance between the vehicle and an obstruction.
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The parking sensor detection range has limitations. For example, obstructions closing in from the side and objects short in height may not be detected. Always confirm the safety around the vehicle visually when driving.
For details, refer to the parking sensor obstruction detection indication and warning sound.
Refer to Parking Sensor System (Search).
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Because there might be a difference between the image displayed on the screen, such as indicated in the following, and the actual conditions when parking, always check the safety at the rear of the vehicle and the surrounding area directly with your eyes.
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Even though the back end of the parking space (or garage) displayed on the screen and distance guide lines appear parallel, they may not actually be parallel.
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When parking in a space with a division line on only one side of the parking space, even though the division line and the vehicle width guide line appear parallel, they may not actually be parallel.
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The following shows an example of vehicle parking with the steering wheel turned to the left while backing up the vehicle. When backing into a parking space from the opposite direction, the steering operation is reversed.
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Back the vehicle into the parking space by turning the steering wheel so that the vehicle enters the center of the parking space.
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(Screen display)
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(Actual condition)
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After the vehicle starts entering the parking space, stop and adjust the steering wheel so that the distance between the vehicle width lines and the sides of the parking space on the left and right are roughly equal, and then continue backing up slowly.
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Once the vehicle width lines and the sides of the parking space on the left and right are parallel, straighten the wheels and back the vehicle slowly into the parking space. Continue checking the vehicle's surroundings and then stop the vehicle in the best possible position. (If the parking space has division lines, check whether the vehicle width guide lines are parallel to them.)
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(Screen display)
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(Actual condition)
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Margin of Error Between Road Surface on Screen and Actual Road Surface
There might be some margin of error between the road surface appearing on the screen and the actual road surface. A margin of error in the perceived distance could lead to an accident, therefore be aware of the following conditions which can more easily produce errors in the perceived distance.
The vehicle tilts due to weight of passengers and cargo.
If the vehicle is tilted, obstructions picked up by a camera can appear farther or closer than the actual distance from the vehicle.
Front camera

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Obstruction
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Margin of error
Side camera

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Obstruction
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Margin of error
Rear camera

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Obstruction
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Margin of error
There is a steep up or down grade in the road at the front or rear of the vehicle
If there is a steep up or down grade in the road at the front or rear of the vehicle, obstructions picked up by the camera can appear farther or closer than the actual distance from the vehicle.
Front camera

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Appears further than actual distance
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Distance of obstruction being viewed on screen
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Actual distance of obstruction from vehicle
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Actual obstruction
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Obstruction appearing on screen
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Appears closer than actual distance
Side camera

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Appears further than actual distance
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Distance of obstruction being viewed on screen
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Actual distance of obstruction from vehicle
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Actual obstruction
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Obstruction appearing on screen
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Appears closer than actual distance
Rear camera

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Appears further than actual distance
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Distance of obstruction being viewed on screen
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Actual distance of obstruction from vehicle
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Obstruction appearing on screen
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Actual obstruction
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Appears closer than actual distance
If the vehicle is on a slope, obstructions taken by the camera can appear farther or closer than the actual distance from the vehicle.
Three-dimensional object at vehicle front or rear
Because the vehicle front end guide lines (side camera) or the distance guide lines (rear camera) are displayed based on a flat surface, the distance to the three-dimensional object displayed on the screen is different from the actual distance.
Side camera

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(Screen display)
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(Actual condition)
Rear camera

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(Screen display)
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(Actual condition)
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Sensed distance on screen A>B>C
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Actual distance B>C=A