Mazda 6 Manual page 258

When Driving
i-ACTIVSENSE
NOTE
The Smart Brake Support (SBS) system operates when all of the following conditions are met:
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The ignition is switched ON.
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The Smart Brake Support (SBS) system is on.
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The vehicle speed is about 15 km/h or faster (10 mph or faster).
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The relative speed between your vehicle and the vehicle ahead is about 15 km/h or faster (10
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mph or faster).
The Dynamic Stability Control (DSC) is not operating.
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The Smart Brake Support (SBS) system may not operate under the following conditions:
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If the vehicle is accelerated rapidly and it comes close to a vehicle ahead.
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The vehicle is driven at the same speed as the vehicle ahead.
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The accelerator pedal is depressed.
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The brake pedal is depressed.
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The steering wheel is being operated.
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The selector lever is being operated.
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The turn signal is being used.
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When the vehicle ahead is not equipped with taillights or the taillights are turned off.
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When warnings and messages, such as a dirty windshield, related to the Forward Sensing
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Camera (FSC)/laser sensor (front) are being displayed in the multi-information display.
Although the objects which activate the system are four-wheeled vehicles, the radar sensor could
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detect the following objects, determine them to be an obstruction, and operate the Smart Brake
Support (SBS) system.
Objects on the road at the entrance to a curve (including guardrails and snow banks).
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A vehicle appears in the opposite lane while cornering or rounding a curve.
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When crossing a narrow bridge.
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When passing under a low gate or through a tunnel or narrow gate.
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When entering an underground parking area.
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Metal objects, bumps, or protruding objects on the road.
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If you suddenly come close to a vehicle ahead.
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When driving in areas where there is high grass or forage.
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Two-wheeled vehicles such as motorbikes or bicycles.
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Pedestrians or non-metallic objects such as standing trees.
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When the system operates, the user is notified by the multi-information display or the active
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driving display (with active driving display).
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