Mazda CX-9 Owners Manual: Smart City Brake Support (SCBS)

Mazda CX-9 Owners Manual / When Driving / i-ACTIVSENSE / Smart City Brake Support (SCBS)

The SCBS 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) )

i-ACTIVSENSE

WARNING

Do not rely completely on the SCBS system:

  • The SCBS 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 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.

CAUTION

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 (SCBS) system Operation on how to turn off the SCBS system.

NOTE

  • The SCBS system will operate under the following conditions.
    • The engine is running.
    • The Smart Brake Support/Smart City Brake Support (SBS/SCBS) system warning indication (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 system is not turned off.
  • Under the following conditions, the SCBS system may not operate normally:
    • The SCBS 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 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.

Collision Warning

If there is the possibility of a collision with a vehicle ahead, the beep sounds continuously and a warning is indicated in the multi-information display and the active driving display.

NOTE The operation distance and volume of the collision warning can be changed.

Automatic Brake Operation Display

The automatic brake operation display is indicated on the multi-information display after the Advanced SCBS is operated.

NOTE

  • The collision warning beep sounds intermittently while the Advanced SCBS brake or brake assist (Advanced SCBS brake assist) is operating.
  • If the vehicle is stopped by the Advanced SCBS operation and the brake pedal is not depressed, the warning beep sounds 1 time after about 2 seconds and the Advanced SCBS brake is automatically released.

Stopping the Advanced Smart City Brake Support (Advanced SCBS) System Operation

The Advanced SCBS system can be temporarily deactivated.

When the Advanced SCBS system is turned off, the Smart City Brake Support (SCBS) OFF indicator light turns on.

When the engine is restarted, the system becomes operational.

NOTE When the Advanced SCBS system is set to inoperable, the Smart Brake Support (SBS) are also set to inoperable.

    Advanced Smart City Brake Support (Advanced SCBS)

    Smart Brake Support (SBS)

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