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Home > Driver assistance system > Forward Collision-Avoidance Assist (FCA) (Sensor Fusion) > Forward Collision-Avoidance Assist operation

Forward Collision-Avoidance Assist operation

Basic function

Warning and control

The basic function for Forward Collision-Avoidance Assist is warned and controlled in the following way.

  • Collision warning

  • Emergency braking

  • Stopping vehicle and ending brake control

Collision Warning

A: Collision Warning

Collision Warning will alert the driver with the Forward Safety warning light blinking (), warning message an audible warning and steering wheel vibration.

The collision warning operates under the following vehicle speed conditions, depending on the vehicle in front.

  • Vehicle or powered two-wheeler: 10–200 km/h (6–124 mph)

  • Pedestrian or cyclist: 10–85 km/h (6–53 mph)

Emergency Braking

A: Emergency Braking

Emergency braking will alert the driver with the Forward Safety warning light blinking (), warning message an audible warning and steering wheel vibration.

The brake assist will be activated to help avoid a collision with a vehicle, pedestrian, cyclist and powered two-wheeler.

  • Vehicle or powered two-wheeler:

    Driving target

    Stopped target

    Weak braking power

    10–200 km/h (6–124 mph)

    Strong braking power

    10–130 km/h (6–80 mph)

    10–75 km/h (6–47 mph)

    (10–100 km/h (6–62 mph))*

    * If Forward Collision Avoidance Assist judges that avoiding a collision is difficult even by changing the driving lane. The function operate range may decrease due to surroundings of the vehicle.

  • Pedestrian or cyclist: 10–65 km/h (6–40 mph)

CAUTION
  • The function operation range may decrease due to the front traffic condition or the surroundings of the vehicle.

  • When driving at night, the performance of powered two-wheeler recognition is decreased, so the Forward Collision-Avoidance Assist system may be temporarily limited or may not work.

Stopping vehicle and ending brake control

A: Drive carefully

When the vehicle is stopped due to emergency braking, the warning message will appear on the cluster.

For your safety, the driver should depress the brake pedal immediately and check the surroundings.

  • Brake control will end after the vehicle is stopped by emergency braking for approximately 2 seconds.

NOTICE

The warning sound during collision warning and emergency braking can be switched off by pressing the hazard warning flasher switch.

Junction Turning function

Warning and control

The Junction turning function is warned and controlled in the following way.

  • Collision Warning

  • Emergency Braking

  • Stopping vehicle and ending brake control

Collision Warning

A: Collision Warning

Collision Warning will alert the driver with the Forward Safety warning light blinking (), warning message, an audible warning and steering wheel vibration.

Collision warning will be activated in the following conditions:

  • Your driving speed: Approximately 10–30 km/h (6–19 mph)

  • Oncoming vehicle and Powered two-wheeler speed: Approximately 30–70 km/h (19–44 mph)

Emergency Braking

A: Emergency Braking

Emergency braking will alert the driver with the Forward Safety warning light blinking (), warning message, an audible warning and steering wheel vibration. The brake assist will be activated and to help avoid a collision with an oncoming vehicle, pedestrian, cyclist and powered two-wheeler.

Emergency braking will be activated in the following conditions.

  • Your driving speed: 10–30 km/h (6–19 mph)

  • Oncoming vehicle and Powered two-wheeler speed: Approximately 30–70 km/h (19–44 mph)

Stopping vehicle and ending brake control

A: Drive carefully

When the vehicle is stopped due to emergency braking, the warning message will appear on the cluster.

For your safety, the driver should depress the brake pedal immediately and check the surroundings.

  • Brake control will end after the vehicle is stopped by emergency braking for approximately 2 seconds.

NOTICE

The warning sound during collision warning and emergency braking can be switched off by pressing the hazard warning flasher switch.

NOTICE

If the driver's seat is on the left side, Junction Turning function will operate only when you turn left. If the driver's seat position is on the right side, the function will operate only when you turn right.

Junction Crossing function (if equipped)

Warning and control

The Junction Crossing function is warned and controlled by the following level.

  • Collision Warning

  • Emergency Braking

  • Stopping vehicle and ending brake control

Collision Warning

A: Collision Warning

Collision Warning will alert the driver with the Forward Safety warning light blinking (), warning message, an audible warning and steering wheel vibration.

Forward collision warning will be activated in the following conditions.

  • Your driving speed: Approximately 10–55km/h (6–34 mph)

  • Crossing vehicle speed: Approximately 10–60km/h (6–37 mph)

Emergency Braking

A: Emergency Braking

The Forward Safety warning light blinking (), warning message, an audible warning and the steering wheel vibration that emergency braking will be assisted. The brake assist will be activated and help avoid the collision with a vehicle, pedestrian cyclist, or powered two-wheeler.

Emergency braking will be activated in the following conditions.

  • Your driving speed: Approximately 10–55km/h (6–34 mph)

  • Crossing vehicle speed: Approximately 10–40km/h (6–25 mph)

Stopping vehicle and ending brake control

A: Drive carefully

When the vehicle is stopped due to emergency braking, the warning message will appear on the cluster.

For your safety, the driver should depress the brake pedal immediately and check the surroundings.

  • Brake control will end after the vehicle is stopped by emergency braking for approximately 2 seconds.

CAUTION

If the collision angle with the crossing vehicle is beyond a certain range, Junction Crossing Warning and control may be late or may not operate.

NOTICE

The warning sound during collision warning and emergency braking can be switched off by pressing the hazard warning flasher switch.

Direct Oncoming function

Warning and control

The Direct Oncoming function is warned and controlled in the following way.

  • Collision Warning

  • Emergency Braking

  • Stopping vehicle and ending brake control

Collision Warning

A: Collision Warning

Collision warning will alert the driver with a forward safety warning light blinking (), warning message, an audible warning and steering wheel vibration.

Collision Warning will be activated in following conditions.

  • Your driving speed: Approximately

    30–130 km/h (19–80mph)

  • Oncoming vehicle speed: Approximately above 10 km/h (6 mph)

Emergency braking

A: Emergency Braking

Emergency braking will alert the driver with a forward safety warning light blinking (), warning message, an audible warning and steering wheel vibration.

Emergency braking will be activated in following conditions.

  • Your driving speed: Approximately 30–130 km/h (19–80 mph)

  • Oncoming vehicle speed: Approximately above 10 km/h (6 mph)

Stopping vehicle and ending brake control

A: Drive carefully

When the vehicle is stopped due to emergency braking, the warning message will appear on the cluster.

For your safety, the driver should depress the brake pedal immediately and check the surroundings.

  • Brake control will end after the vehicle is stopped by emergency braking for approximately 2 seconds

CAUTION

If your vehicle or the oncoming vehicle is not driving straight, Front Oncoming function warning and control may be late or may not operate.

NOTICE

The warning sound during collision warning and emergency braking can be switched off by pressing the hazard warning flasher switch.

Lane-Change Oncoming function (if equipped)

Warning and control

The Lane-change oncoming function is warned and controlled in the following way.

  • Collision Warning

  • Emergency Steering

Collision Warning

A: Collision Warning

Collision warning will alert the driver with the emergency steering warning light blinking (), warning message and, an audible warning and steering wheel vibration.

Collision warning will be activated in the following conditions.

  • Your driving speed: Approximately 40–145 km/h (25–90 mph)

  • Oncoming vehicle or powered two-wheeler speed: Approximately above 10 km/h (6 mph)

  • Relative speed: Approximately below 200 km/h (124 mph)

Emergency Steering

A: Emergency Steering

Emergency steering will alert the driver with the emergency steering warning light blinking (), warning message, an audible warning and steering wheel vibration. The steering assist will be activated to help avoid a collision with an oncoming vehicle or powered two-wheelers.

Emergency steering will be activated in following conditions.

  • Your driving speed: Approximately 40–145 km/h (25–90 mph)

  • Oncoming vehicle or powered two-wheeler speed: Approximately above 10 km/h (6 mph)

  • Relative speed: Approximately below 200 km/h (124 mph)

Lane-Change Side function (if equipped)

Warning and control

The for Lane-change side function is warned and controlled in the following way.

  • Collision Warning

  • Emergency Steering

Collision Warning

A: Collision Warning

Collision warning will alert the driver with the emergency steering warning light blinking (), warning message, an audible warning and steering wheel vibration. The warning light will appear on the outside rearview mirror (side view mirror) when the vehicle or powered two-wheeler either on a right or left lane is detected from the rear.

Collision warning will be activated in following conditions.

  • Your driving speed: Approximately 40–145 km/h (25–90 mph)

Emergency Steering

A: Emergency Steering

To warn the driver that emergency steering will be assisted, the emergency steering warning light blinking (), blinking warning message will appear on the cluster, an audible warning and steering wheel vibration will sound.

The warning light on the outside rearview mirror (side view mirror) will appear when the vehicle or powered two-wheeler on both lanes is detected from the rear. Steering will be assisted to avoid collision.

Emergency steering will be activated in following conditions.

  • Your driving speed: Approximately 40–145 km/h (25–90 mph)

  • Crossing vehicle and powered two-wheeler speed: whilst driving

CAUTION
  • Lane-Change Side function does not operate if the oncoming vehicle or powered two-wheeler from the front side is stopped.

  • The detection range of the front corner and rear corner radars is based on the normal road width of ordinary roads. On narrow roads, warnings may be triggered by a vehicle or powered two-wheeler driving in the next lane. Conversely, on wide roads, radars may fail to recognise a vehicle or powered two-wheeler driving in the next lane and not issue warnings.

  • The lateral approaching vehicle response function is deactivated in the following situations:

    • If you drive more than a certain distance into the next lane

    • If you move away from the direction where there is a risk of collision

    • If the steering wheel is rotated rapidly

    • If you step on the brake pedal

    • If Forward Collision-Avoidance Assist is activated

  • After the lateral approaching vehicle response function has been triggered or after changing lanes, be sure to move into the centre of the lane. If you continue to drive along the edge of the lane without moving to the lane's centre, the lateral approaching vehicle response function will be deactivated.

NOTICE
  • If an additional accident is expected due to emergency steering, only a collision warning will be issued to notify of the danger.

  • If the driver's seat is on the left, a collision warning may be issued when turning left; if the driver's seat is on the right, a collision warning may be issued when turning right.

Evasive Steering Assist function (if equipped)

Warning and control

The Evasive Steering Assist function is warned and controlled in the following way.

  • Emergency Steering

Emergency Steering (Driver steering assist)

A: Emergency Steering

Emergency steering will alert the driver with the emergency steering warning light blinking (), warning message, an audible warning and the steering wheel vibration.

If there is a risk of collision with a vehicle, a pedestrian, a cyclist, or a powered two-wheeler in front, the steering will be assisted to help prevent collision when the driver steers the vehicle to avoid collision.

Emergency Steering will be activated in following conditions.

  • Your driving speed: Approximately 40–85 km/h (25–53 mph)

Emergency Steering (Evasive steering assist)

A: Emergency Steering

Emergency steering will alert the driver with the emergency steering warning light blinking (), warning message, an audible warning and the steering wheel vibration.

If there is a risk of collision with a pedestrian, a cyclist, or a powered two-wheeler in front and your vehicle already exceeded the emergency braking speed limit, the steering will be assisted to help prevent collision when the driver steers the vehicle to avoid collision.

Emergency Steering will be activated in following conditions.

  • Your driving speed: Approximately 65–75 km/h (40–47 mph)

CAUTION
  • The steering wheel may turn automatically when emergency steering is operating.

  • Emergency steering will automatically cancel when risk factors disappear. If necessary, the driver must steer the vehicle.

  • Emergency steering may not operate or may cancel during operation if the steering wheel is held tight or steered in the opposite direction.

  • When steering is assisted to avoid collision with a vehicle, pedestrian, cyclist and two-wheeler, Evasive steering assist will be cancelled if collisions with other objects (vehicle, powered two-wheeler, pedestrians, or cyclists) are expected.

  • Evasive steering assist may not operate if space to avoid collision in the driving lane is insufficient.

  • When driving at night, the performance of powered two-wheeler recognition is decreased, so the Forward Collision-Avoidance Assist system may be temporarily limited or may not work.

NOTICE

For more details on warning messages, refer to More Details.

WARNING
  • For your safety, change the Settings after parking the vehicle at a safe location.

  • Forward Collision-Avoidance Assist does not operate in all situations or cannot avoid all collisions.

  • The driver should hold the responsibility to control the vehicle. Do not solely depend on Forward Collision-Avoidance Assist. Rather, maintain a safe braking distance, and if necessary, depress the brake pedal to reduce driving speed or to stop the vehicle.

  • Never deliberately operate Forward Collision-Avoidance Assist on people, objects, etc. It may cause serious injury or death.

  • Forward Collision-Avoidance Assist may not operate if the driver depresses the brake pedal to avoid collision.

  • During Forward Collision-Avoidance Assist operation, the vehicle may stop suddenly injuring passengers and shifting loose objects. Always have the seat belt on and keep loose objects secured.

  • If any other function's warning message is displayed or audible warning is generated, Forward Collision-Avoidance Assist warning message may not be displayed and audible warning may not be generated.

  • You may not hear the warning sound of Forward Collision-Avoidance Assist if the surrounding is noisy.

  • Adjust the volume in the vehicle properly and always pay attention.

  • The Forward Collision Assist could stop, not operate, or unnecessarily operate the function, depending on road conditions, surroundings and driving conditions. Always pay attention to your surroundings and be prepared for potential collisions/dangerous situations.

  • Even if there is a problem with Forward Collision-Avoidance Assist, the vehicle's basic braking performance will operate properly.

  • During emergency braking, braking control by Forward Collision-Avoidance Assist will automatically cancel when the driver excessively depresses the accelerator pedal or sharply steers the vehicle.

CAUTION
  • The surroundings and pedestrians, cyclists and powered two-wheeler or other vehicles in front of you may affect the speed or detection range to operate Forward Collision-Avoidance Assist, resulting in Forward Collision-Avoidance Assist temporarily limited or disabled.

  • Forward collision avoidance assistance operates under specific conditions, taking into account the status of the oncoming vehicle, powered two-wheeler and cyclist, driving direction, speed, and surrounding environment to judges the level of risk.

  • The function may be limited or deactivated in cases where the driving speed is excessively high or there is a significant speed difference between the vehicle and the oncoming powered two-wheelers or cyclists.

  • When a collision with a surrounding vehicle is expected, Lane-change oncoming, Lane-change side and Evasive steering assist functions will only warn the driver. (if equipped)

NOTICE
  • When a collision is imminent, the Forward Collision-Avoidance Assist may assist the driver with brakes if the driver fails to brake enough.

  • The images or colours may be displayed differently depending on the specifications of the instrument cluster or theme.