Mazda 3 - Page 334

4 – 190
When Driving
i-ACTIVSENSE
Smart City Brake Support [Reverse] (SCBS R)
The Smart City Brake Support [Reverse] (SCBS R) is a system which is designed to reduce
damage in the event of a collision by operating the brake control (SCBS brake) when the
system’s ultrasonic sensors detect an obstruction at the rear of the vehicle while driving
at a speed of about 2 to 8 km/h (2 to 4 mph) and the system determines that a collision is
unavoidable.
Reverse
Ultrasonic sensor (rear)
WARNING
Do not rely completely on the Smart City Brake Support [Reverse] (SCBS R) system:
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The Smart City Brake Support [Reverse] (SCBS R) 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.
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To assure the correct operation of the Smart City Brake Support [Reverse] (SCBS
R), heed the following cautions.
 
Do not apply a sticker to an ultrasonic sensor (rear) (including transparent
stickers). Otherwise, the ultrasonic sensor (rear) may not be able to detect vehicles
or obstructions which could result in an accident.
 
Do not disassemble an ultrasonic sensor (rear).
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If cracks or damage caused by À ying gravel or debris is visible around an
ultrasonic sensor (rear), stop using the Smart City Brake Support [Reverse] (SCBS
R) system immediately and have your vehicle inspected by an expert repairer, we
recommend an Authorised Mazda Repairer. 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.
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Refer to Stopping the Smart City Brake Support [Reverse] (SCBS R) System
Operation on page 4-194 .
 
Consult an expert repairer, we recommend an Authorised Mazda Repairer for rear
bumper replacement.
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