Mazda CX-9 2016 Owner's Manual page 315

Obstruction Detection Indication
The position of a sensor which has detected an obstruction is indicated. The gauge
illuminates in different areas depending on the distance to an obstruction detected by the
sensor.
As the vehicle approaches closer to an obstruction, the zone in the gauge closer to the
vehicle illuminates.
Left corner
sensor gauge
Rear sensor gauge
Right corner
sensor gauge
Parking Sensor System
When Driving
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