Lincoln 2013 MKX Owner's Manual page 183

The system can be turned off using the information display control.
Refer to the Information Display chapter. If a fault is present in the
system, a warning message appears in the information display and does
not allow the driver to switch the faulted system on.
Note: If your vehicle is equipped with MyKey , it is possible to prevent
turning the sensing system off. Refer to the MyKey chapter.
Using the Rear Sensing System
The rear sensors are only active when the transmission is in R (Reverse).
As the vehicle moves closer to the obstacle, the rate of the audible
warning increases. When the obstacle is fewer than 12 inches (30
centimeters) away, the warning sounds continuously. If a stationary or
receding object is detected farther than 12 inches (30 centimeters) from
the side of the vehicle, the tone sounds for only three seconds. Once the
system detects an object approaching, the warning sounds again.
A
The system detects certain objects while the transmission is in R
(Reverse):
• and moving toward a stationary object at a speed of 3 mph (5 km/h)
or less.
• but not moving, and a moving object is approaching the rear of the
vehicle at a speed of 3 mph (5 km/h) or less.
• and moving at a speed of less than 3 mph (5 km/h) and a moving
object is approaching the rear of the vehicle at a speed of less than
3 mph (5 km/h).
2013 MKX (mkx)
Owners Guide gf, 2nd Printing
USA (fus)
Parking Aids
A. Coverage area of up to 6 feet
(2 meters) from the rear bumper
(with a decreased coverage area at
the outer corners of the bumper).
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