Jeep 2009 Liberty - Owner Manual - Manual (Page 164)

Vehicles Equipped with Rear Park Assist Switch
You can turn the Rear Park Assist System on or off by
pressing the Rear Park Assist switch located the lower
switch bank below the climate controls. System Operation
The system uses four sensors located in the rear bumper
fascia to scan for obstacles up to 79 in (200 cm) away from
the rear bumper fascia. The warning display located
above the rear window provides both visible and audible
warnings to indicate the range of the object.
Rear Park Assist Switch
Rear Park Assist LED Display
162 UNDERSTANDING THE FEATURES OF YOUR VEHICLE