Mazda CX-3 Owner's Manual page 282

When Driving
i-ACTIVSENSE
NOTE
The Mazda Radar Cruise Control (MRCC) system operates when all of the following
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conditions are met.
The vehicle speed is as follows:
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(European models)
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About 30 km/h (19 mph) to 200 km/h (124 mph)
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(Except European models)
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About 30 km/h (19 mph) to 145 km/h (90 mph)
The Mazda Radar Cruise Control (MRCC) system is turned on.
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The parking brake is not applied.
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The Smart Brake Support (SBS) is not malfunctioning.
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The Dynamic Stability Control (DSC) is operating normally.
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All doors are closed.
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The driver's seat belt is fastened.
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(Manual transaxle)
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The shift lever is in a position other than reverse (R) or neutral (N).
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The clutch pedal is not depressed.
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(Automatic transaxle)
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The selector lever is in the drive (D) position or manual (M) position (manual
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mode).
In the following cases, the warnings may not activate even if your vehicle starts
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closing in on the vehicle ahead.
You are driving at the same speed as the vehicle ahead.
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Directly after the Mazda Radar Cruise Control (MRCC) system has been set.
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When the accelerator pedal is depressed or directly after the accelerator pedal is
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released.
Another vehicle cuts into the driving lane.
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The following are not detected as physical objects.
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Vehicles approaching in the opposite direction
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Pedestrians
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Stationary objects (stopped vehicles, obstructions)
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If a vehicle ahead is travelling at an extremely low speed, the system may not detect it
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correctly.
During headway control travel, do not set the system on two-wheeled vehicles such as
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motorcycles and bicycles.
Do not use the Mazda Radar Cruise Control (MRCC) system under conditions in
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which the close proximity warnings are frequently activated.
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