Ford 2005 Aviator F Owner's Manual page 282

Driving
The system detects obstacles up to
six feet (two meters) from the rear
bumper with a decreased coverage
area at the outer corners of the
bumper, (refer to the figures for
approximate zone coverage areas).
As you move closer to the obstacle,
the rate of the tone increases. When
the obstacle is less than 10 inches
(25.0 cm) away, the tone will sound
continuously. If the system detects a
stationary or receding object further
than 10 inches (25.0 cm) from the
side of the vehicle, the tone will
sound for only three seconds. Once
the system detects an object
approaching, the tone will sound
again.
The system automatically turns on when the gear selector is placed in R
(Reverse) and the ignition is ON. A control in the message center allows
the driver to disable the system only when the ignition is ON, and the
gear selector is in R (Reverse). Refer to Message center in the Driver
Controls chapter for more information.
Keep the Rear Park Assist sensors (located on the rear
bumper/fascia) free from snow, ice and large accumulations of
dirt (do not clean the sensors with sharp objects). If the sensors
are covered, it will affect the accuracy of the system.
If your vehicle sustains damage to the rear bumper/fascia, leaving
it misaligned or bent, the sensing zone may be altered causing
inaccurate measurement of obstacles or false alarms.
ALL WHEEL DRIVE (AWD) SYSTEM (IF EQUIPPED)
Your vehicle may be equipped with an All Wheel Drive (AWD) transfer
case. With the AWD option, power is supplied to all four wheels
automatically with no need to shift between two-wheel drive and
four-wheel drive. If your vehicle is equipped with the AdvanceTrac
stability enhancement feature, you can change AWD modes, if desired,
by selecting AWD options through the message center.
282
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2005 Aviator f/k/a Navigator LS (231), Owners Guide (post-2002-fmt) (own2002),
Market: USA_English (fus)