Jeep 2010 Liberty Owner's Manual page 169

168 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
Rear Park Assist Disabled Slow Tone
The system will indicate a detected obstacle by showing
three solid arcs and will produce a 1 ⁄ second tone. As the
2
vehicle moves closer to the object the EVIC display will
show fewer arcs and the sound tone will change from
slow, to fast, to continuous.