Smart City Brake Support [Forward] (SCBS F) (Some Models)

The SCBS F system alerts the driver of a possible collision using an indication in the display and a warning sound when the Forward Sensing Camera (FSC) detects a vehicle ahead and determines that a collision with a vehicle ahead is unavoidable while the vehicle is being driven at a vehicle speed of about 4 to 80 km/h (2 to 50 mph). In addition, the system reduces damage in the event of a collision by operating the brake control (Smart City Brake Support (SCBS) brake) when the system determines that a collision is unavoidable while the vehicle is being driven at a vehicle speed of about 4 to 30 km/h (2 to 18 mph). It may also be possible to avoid a collision if the relative speed between your vehicle and the vehicle in front of you is less than about 20 km/h (12 mph). In addition, when the driver depresses the brake pedal while the system is in the operation range at about 4 to 30 km/h (2 to 18 mph), the brakes are applied firmly and quickly to assist. (Brake Assist (Smart City Brake Support (SCBS) brake assist))



Do not rely completely on the SCBS F system:

  • The SCBS F 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.

  • The SCBS F is a system which operates in response to a vehicle ahead. The system may not be able to detect or react to 2-wheeled vehicles or pedestrians.


In the following cases, turn the system off to prevent a mis-operation:

  • The vehicle is being towed or when towing another vehicle.

  • The vehicle is on a chassis roller.

  • When driving on rough roads such as in areas of dense grass or off-road.

Refer to Stopping the Smart City Brake Support [Forward] (SCBS F) system Operation (Search) on how to turn off the SCBS F system.


  • The SCBS F system will operate under the following conditions.

    • The engine is running.

    • The Smart Brake Support/Smart City Brake Support (SBS/SCBS) system warning indication/warning light (amber) does not illuminate.

    • (Rear-end collision warning)

      The vehicle speed is about 4 to 80 km/h (2 to 50 mph).

    • (Brake control (Smart City Brake Support (SCBS) brake))

      The vehicle speed is about 4 to 30 km/h (2 to 18 mph).

    • The SCBS F system is not turned off.

  • Under the following conditions, the SCBS F system may not operate normally:

    • The SCBS F system will not operate if the driver is deliberately performing driving operations (accelerator pedal and steering wheel).

    • If there is the possibility of partial contact with a vehicle ahead.

    • The vehicle is driven on a slippery road surface such as wet roads or icy or snow-bound roads.

    • The braking performance is adversely affected due to cold temperatures or wet brakes.

    • The vehicle is driven at the same speed as the vehicle ahead.

    • The accelerator pedal is depressed.

    • The brake pedal is depressed.

    • The steering wheel is being operated.

    • The selector lever is being operated.

  • In the following cases, the Forward Sensing Camera (FSC) determines that there is a vehicle ahead and the SCBS F may operate.

    • Objects on the road at the entrance to a curve.

    • Vehicles passing in the opposite lane while making a curve.

    • Metal objects, bumps, or protruding objects on the road.

    • When passing through a toll gate.

    • When passing through low gates, narrow gates, car washing machines, or tunnels.

    • If you suddenly come close to a vehicle ahead.

    • 2-wheeled vehicles, pedestrians, animals or standing trees.

    • Vehicle is driven with some of the tires having significant wear.

Page top