FORD 2003 F-550 v.1 - Manual (Page 111)

Do not park your vehicle in Neutral, it may move unexpectedly
and injure someone. Use 1 (First) gear and set the parking brake
fully.
Removing the key
Turn the ignition off, push the release lever (located above the ignition),
then turn the keytoward you and remove the key.
REVERSE SENSING SYSTEM (IF EQUIPPED)
The Reverse Sensing System (RSS) sounds a tone to warn the driver of
obstacles near the rear bumper when the R (Reverse) is selected and the
vehicle is moving at speeds less than 5 km/h (3 mph). The system is not
effective at speeds above 5 km/h (3 mph) and maynot detect certain
angular or moving objects.
To help avoid personal injury, please read and understand the
limitations of the reverse sensing system as contained in this
section. Reverse sensing is onlyan aid for some (generallylarge and
fixed) objects when moving in reverse on a flat surface at “parking
speeds”. Inclement weather mayalso affect the function of the RSS;
this mayinclude reduced performance or a false activation.
To help avoid personal injury, always use caution when in
reverse and when using the RSS.
This system is not designed to prevent contact with small or
moving objects. The system is designed to provide a warning to
assist the driver in detecting large stationaryobjects to avoid damaging
the vehicle. The system may not detect smaller objects, particularly
those close to the ground.
Driving
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