FORD 2010 Explorer v.2 - Manual (Page 294)

REVERSE SENSING SYSTEM (IF EQUIPPED)
The reverse sensing system sounds a tone to warn the driver of obstacles
near the rear bumper when the R (Reverse) gear is selected.
WARNING: To help avoid personal injury, please read and
understand the limitations of the reverse sensing system as
contained in this section. The park assist is only an aid for some
(generally large and fixed) objects when moving in reverse on a flat
surface at “parking speeds”. Inclement weather may also affect the
function of the RSS; this may include reduced performance or a false
activation.
WARNING: To help avoid personal injury, always use caution
when in R (Reverse) and when using the reverse sensing system.
WARNING: 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 objects to avoid damaging the
vehicle. The system may not detect smaller objects, particularly those
close to the ground.
WARNING: Certain add-on devices such as large trailer hitches,
bike or surfboard racks and any device that may block the
normal detection zone of the reverse sensing system may create false
beeps.
The system will assist the driver in detecting certain objects while the
vehicle moves in reverse at speeds less than 6 mph (10 km/h). The
system is not effective at speeds greater than 6 mph (10 km/h) and may
not detect certain angular or moving objects.
Driving
294
2010 Explorer (exp)
Owners Guide, 2nd Printing
USA (fus)