i-ACTIVSENSE

i-ACTIVSENSE (Some Models)

i-ACTIVSENSE is a collective term covering a series of advanced safety and driver support systems which make use of a Forward Sensing Camera (FSC) and radar sensors. These 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 recognise potential hazards and avert accidents.

Driver awareness support systems

Nighttime visibility

Left/right side and rear side detection

Inter-vehicle distance recognition

Driver fatigue detection

Rear obstruction detection when leaving a parking space

Driver support systems

Inter-vehicle distance

Speed control

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

Camera and Sensors

Forward Sensing Camera (FSC)

The Forward Sensing Camera (FSC) detects lane indications and recognises headlights, tail lights and city lights during nighttime driving. The following systems also use the Forward Sensing Camera (FSC).

  • High Beam Control System (HBC)

  • Adaptive LED Headlights (ALH)

  • Driver Attention Alert (DAA)

  • Lane Departure Warning System (LDWS)

  • Smart Brake Support (SBS)

The Forward Sensing Camera (FSC) is installed at the top of the windscreen near the rearview mirror.

Refer to Forward Sensing Camera (FSC) (Search).

Radar sensor (front)

The radar sensor (front) functions by detecting the radio waves reflected off a vehicle ahead sent from the radar sensor. The following systems also use the radar sensor (front).

  • Distance Recognition Support System (DRSS)

  • Mazda Radar Cruise Control (MRCC)

  • Smart Brake Support (SBS)

The radar sensor (front) is mounted behind the radiator grille.

Refer to Radar Sensor (Front) (Search).

Laser sensor (front)

The laser sensor (front) emits a near-infrared laser beam and receives the beam reflected off the reflective surface of a vehicle in front, and the detected beam is then used for measurement. The following systems also use the laser sensor (front).

  • Smart City Brake Support [Forward] (SCBS F)

  • Smart Brake Support (SBS)

The laser sensor (front) is installed at the top of the windscreen near the rearview mirror.

Refer to Laser Sensor (Front) (Search).

Radar sensors (rear)

The radar sensors (rear) function by detecting the radio waves reflected off a vehicle approaching from the rear or an obstruction sent from the radar sensors. The following systems also use the radar sensors (rear).

  • Blind Spot Monitoring (BSM)

  • Rear Cross Traffic Alert (RCTA)

The radar sensors (rear) are installed inside the rear bumper, one each on the left and right sides.

Refer to Radar Sensors (Rear) (Search).

Ultrasonic sensors (rear)

The ultrasonic sensors (rear) function by detecting the ultrasonic waves reflected off obstructions at the rear sent from the ultrasonic sensors. The following systems also use the ultrasonic sensors (rear).

  • Smart City Brake Support [Reverse] (SCBS R)

The ultrasonic sensors (rear) are mounted in the rear bumper.

Refer to Ultrasonic Sensors (Rear) (Search).

High Beam Control System (HBC) (Some Models)

The HBC determines the conditions in front of the vehicle using the Forward Sensing Camera (FSC) while driving in darkness to automatically switch the headlights between high and low beams.

Refer to Forward Sensing Camera (FSC) (Search).

While driving the vehicle at a speed of about 30 km/h (19 mph) or more, the headlights are switched to high beams when there are no vehicles ahead or approaching in the opposite direction.

The system switches the headlights to low beams when one of the following occurs:

  • The system detects a vehicle or the headlights/lights of a vehicle approaching in the opposite direction.

  • The vehicle is driven on roads lined with streetlamps or on roads in well-lit cities and towns.

  • The vehicle is driven at less than about 20 km/h (12 mph).

The warning light turns on when the system has a malfunction.

Refer to Contact Authorised Mazda Repairer and Have Vehicle Inspected (Search).

 


  • Do not adjust the vehicle height, modify the headlight units, or remove the camera, otherwise the system will not operate normally.

  • Do not rely excessively on the HBC and drive the vehicle while paying sufficient attention to safety. Switch the headlights between the high beams and low beams manually if necessary.

 


The timing in which the system switches the headlights changes under the following conditions. If the system does not switch the headlights appropriately, manually switch between high and low beams according to the visibility as well as road and traffic conditions.

  • When there are sources of light in the area such as street lamps, illuminated signboards, and traffic signals.

  • When there are reflective objects in the surrounding area such as reflective plates and signs.

  • When visibility is reduced under rain, snow and foggy conditions.

  • When driving on roads with sharp turn or hilly terrain.

  • When the headlights/rear lamps of vehicles in front of you or in the opposite lane are dim or not illuminated.

  • When there is sufficient darkness such as at dawn or dusk.

  • When the luggage compartment is loaded with heavy objects or the rear passenger seats are occupied.

  • When visibility is reduced due to a vehicle in front of you spraying water from its tyres onto your windscreen.

To Operate the System

The HBC operates to switch the headlights automatically between high and low beams after the ignition is switched ON and the headlight switch is in the AUTO and high beam position.

The HBC determines that it is dark based on the brightness of the surrounding area. At the same time, the HBC indicator light (green) in the instrument cluster illuminates.

 

The HBC determines that it is dark based on the brightness of the surrounding area.

 


  • When the vehicle speed is about 30 km/h (19 mph) or more, the headlights automatically switch to high beams when there are no vehicles ahead or approaching in the opposite direction.

    When the vehicle speed is less than about 20 km/h (12 mph), the HBC switches the headlights to low beams.

  • The low beams may not switch to high beams when cornering.

  • Operation of the HBC function can be disabled. Refer to Personalisation Features (Search).

Manual Switching

Switching to low beams

Shift the lever to the low beam position.

The HBC indicator light (green) turns off.

Switching to high beams

Turn the headlight switch to the position.

The HBC indicator light (green) turns off and the is illuminated.