Smart Brake Support [Rear Crossing] (SBS-RC)

The SBS-RC is a system designed to assist the driver in avoiding collisions and to reduce damage in the event of a collision by applying the brakes if there is the possibility of collision with a vehicle approaching from the rear while you are reversing out of parking space.

The SBS-RC system detects vehicles approaching from the rear left and right sides of the vehicle, and the rear of the vehicle while the vehicle is being reversed out of a parking space, the system reduces damage in the event of a collision by operating the brake control when the system determines that a collision is unavoidable.

SBS-RC operation

  1. The SBS-RC system operates when the shift lever (manual transmission) or the selector lever (automatic transmission) is shifted to the reverse (R) position.

  2. If there is the possibility of a collision with an approaching vehicle, the SBS-RC system applies brake and displays “BRAKE!” on the active driving display and the multi-information display.

 

Always check the surrounding area visually before actually putting the vehicle in reverse:

The system is only designed to assist you in backing out of the lot when putting the vehicle in reverse. Due to certain limitations with the operation of this system, the SBS-RC system may not operate brake 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.

Do not rely completely on the SBS-RC system:

  • The SBS-RC 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 SBS-RC system operates in response to a vehicle. The system does not operate in response to obstructions such as a wall, pedestrians, or animals.

To assure the correct operation of the SBS-RC, heed the following cautions.

  • Do not apply a sticker to a rear radar and rear camera. Otherwise, the rear radar and rear camera may not be able to detect vehicles or obstructions which could result in an accident.

  • Do not disassemble a rear radar and rear camera.

  • If cracks or damage caused by flying gravel or debris is visible around a rear radar and rear camera, stop using the SBS-RC system immediately and have your vehicle inspected by an Authorized Mazda Dealer. If the vehicle continues to be driven with cracks or scratch marks left around an ultrasonic sensor, the system may operate unnecessarily and cause an unexpected accident.

    Refer to Stopping the Smart Brake Support [Rear Crossing] (SBS-RC) System Operation (Search).

  • Consult an Authorized Mazda Dealer for rear bumper removal.

Do not modify the suspension:

If the vehicle height or inclination is changed, the SBS-RC system may not operate correctly because it cannot detect obstructions correctly.

Do not apply a strong force to a rear radar and rear camera:

When washing the vehicle, do not spray highly pressurized water against a rear radar and rear camera, or rub it strongly. In addition, do not hit the rear bumper forcefully when loading and unloading cargo. Otherwise, the sensors may not detect obstructions correctly which could cause the SBS-RC system to not operate normally, or it could operate unnecessarily.

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  • The SBS-RC system will operate under the following conditions.

    • The engine is running for 3 seconds or more.

    • The shift lever (manual transmission vehicle) or the selector lever (automatic transmission vehicle) is in the R (reverse) position.

    • i-ACTIVSENSE warning indication/warning light is not displayed in the multi-information display.

    • The vehicle speed is under about 10 km/h (6 mph).

    • The vehicle speed of an approaching vehicle is about 3 km/h (2 mph) or faster.

    • The SBS-R is not turned off.

    • The DSC is not malfunctioning.

  • 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.

    • Some problem with the system including the SBS-RC system.

    • A large deviation in the installation position of a rear side radar sensor on the vehicle has occurred.

    • There is a large accumulation of snow or ice on the rear bumper near a rear side radar sensor.

    • Driving on snow-covered roads for long periods.

    • The temperature near the radar sensors becomes extremely hot due to driving for long periods on slopes during the summer.

    • The battery voltage has decreased.

  • Under the following conditions, the rear side radar sensor cannot detect target objects or it may be difficult to detect them.

    • 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.)

      1. Your vehicle

         

    • A vehicle is approaching directly from the rear of your vehicle.

      1. Your vehicle

         

    • The vehicle is parked on a slant.

      1. Your vehicle

         

    • A vehicle is approaching from the opposite direction on a steep gradient.

      1. Your vehicle

         

    • Directly after the SBS-RC system becomes operable using the personalization feature.

    • Radio wave interference from a radar sensor equipped on a nearby parked vehicle.

  • Turn off the SBS-RC 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.

  • In the following cases, a rear radar and rear camera may detect something as a target obstruction which could cause the SBS-RC system to operate.

    • There are hanging curtains, gate poles such as at toll gates and railroad crossing.

    • When traveling near objects such as foliage, barriers, vehicles, walls, and fences along a road.

    • When driving off-road in areas where there is grass and forage.

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

    • A trailer is connected.

    • When a rear-mounted bike rack (towbar bike carrier) is installed.

  • (Manual transmission)

    If the vehicle is stopped by the SBS-RC operation and the clutch pedal is not depressed, the engine stops.

  • When the system operates, the user is notified by the multi-information display.

  • The collision warning beep sounds intermittently while the SBS-RC brake is operating.

  • If the vehicle is stopped by the SBS-RC operation and the brake pedal is not depressed, displaying in meter “Emergency Braking Activated. Depress Brake Pedal to Hold Stop”, after about 2 seconds and the SBS-RC brake is automatically released.

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