Mazda mazda3 2015 Owner's Manual page 327

NOTE
(With front sensor and front corner sensor)
The system may have a malfunction if the beep sound which indicates a system
malfunction is heard and the indicator light fl ashes. Consult an expert repairer, we
recommend an Authorised Mazda Repairer.
The beeper which indicates a system malfunction may not be heard if the ambient
temperature is extremely cold, or mud, ice, or snow adheres to the sensor area.
Remove any foreign material from the sensor area.
When installing a trailer hitch, consult an expert repairer, we recommend an
Authorised Mazda Repairer.
Sensor Detection Range
The sensors detect obstructions within the following range.
Front sensor detection range
Front corner sensor detection range
Rear corner sensor detection range
A
C
Parking Sensor System
A: About 50 cm (About 19 in)
B: About 50 cm (About 19 in)
C: About 100 cm (About 39.3 in)
D: About 150 cm (About 59.0 in)
B
Rear sensor detection range
D
When Driving
4–177