Honda Pilot Owner's Manual page 397

If the system develops a problem,
you will see a ''CHECK PARKING
SENSOR SYSTEM'' message on the
multi-information display, and a
beeper sounds continuously. Very
often, a sensor covered with mud, ice,
snow, etc. is the cause of this
message. Check the sensors first. If
the message stays on or the beeper
does not stop, have the system
checked by your dealer.
Within about 24 in (60 cm)
The range of the corner sensors and
the rear center sensors are limited.
Each corner sensor is capable of
sensing an obstacle only when your
vehicle is 24 in (60 cm) or closer.
The rear center sensor senses an
obstacle that is behind your vehicle
40 in (1 m) or closer.
Do not put any accessories on or
around the sensors.
2009 Pilot
Parking Sensor System
Within about 40 in (1 m)
The system may not function
properly under these conditions:
The sensors are covered with
snow, ice, mud, etc.
When the vehicle is on a rough
road, on grass, or on a hill.
After the vehicle has been sitting
out in hot or cold weather.
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