FORD 2001 F-550 v.1 - Manual (Page 27)

The OFF indicator remains illuminated when the system is disabled. The
system defaults to ON every time the reverse gear is selected. Press the
control to disable or enable the system.
The indicator will remain illuminated to indicate a failure of the reverse
sensing system.
The reverse sensing system may have reduced performance or an
increased chance of false detection if the tailgate is not locked in the
vertical position. When the tailgate is down, the driver may experience a
continuous or intermittent tone. This also applies if items being hauled in
the box do not fit entirely inside and protrude rearward.
Always keep the sensors (located on the rear bumper/fascia) free
from dirt, snow and ice (do not clean the sensors with sharp
objects). These elements may cause the system to operate
inaccurately.
If the 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.
AUXILIARY POWER POINT
Power outlets are designed
for accessory plugs only. Do
not hang any type of accessory or
accessory bracket from the plug.
Improper use of the power outlet
can cause damage not covered by
your warranty.
The auxiliary power point is located
on the instrument panel.
Do not plug optional electrical accessories into the cigarette lighter. Use
the power point.
POWER POINT
Controls and features
27