Liberty 4WD V6-3.7L (2009)
PARK ASSIST SYSTEM
A park assist system is an optional factory-installed electronic parking aid. During parking and other similar vehicle maneuvers this system alerts the
vehicle operator to obstacles located in the path immediately behind the vehicle which, due to the surrounding rear vehicle structure, might be otherwise
difficult to perceive. When an object is detected, the system uses an electromechanical transducer and Light Emitting Diode (LED) indicators within the
park assist display unit to provide the vehicle operator with visual and audible indications of the presence and proximity of such objects.
The park assist system includes the following major components, which are described in further detail elsewhere in this service information:
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Instrument Cluster (1) - In vehicles equipped with the optional park assist system, the Electronic Vehicle Information Center (EVIC) within the
ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) displays textual warnings and error messages
and emits audible warnings related to the current operating status of the park assist system and provides an interface that allows the vehicle
operator to manually disable or enable the system using the customer programmable features option.
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Park Assist Display (4) - Vehicles equipped with the park assist system have a park assist display unit mounted in the rear of the headliner just
forward of the liftgate opening. The body of the display is concealed above the headliner where it is secured by a retainer on the back of the
headliner substrate. Only the narrow, oval-shaped smoked clear lens of the display is visible on the outer surface of the headliner.
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Park Assist Module (3) - Vehicles equipped with the park assist system include a park assist module which is secured through integral mounting
tabs by push-in type fasteners to the quarter inner panel above and behind the right rear wheel house where it is concealed beneath the quarter
inner trim panel.
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Park Assist Sensors (5) - Vehicles equipped with the park assist system have four ultrasonic park assist sensors that are concealed behind the rear
bumper fascia. Each sensor is snapped into an individual molded plastic mounting bracket located at horizontal intervals along the back side of the
rear bumper fascia.
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Park Assist Switch (2) - The optional park assist system can be manually disabled or enabled using either a park assist switch that is integral to
the instrument panel switch pod in the instrument panel center stack below the heater and air conditioner controls, or using the settings function
found in the menu for the Electronic Vehicle Information Center (EVIC) of vehicles without a park assist switch in the instrument panel switch
pod.
Hard wired circuitry connects the various park assist system components to each other through the electrical system of the vehicle. These hard wired
circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be
connected to each other and to the vehicle electrical system through the use of a combination of soldered splices, splice block connectors, and many
different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring
diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the
various wire harness connectors, splices and grounds.
The park assist system components cannot be adjusted or repaired. If any of the park assist system components is damaged or ineffective, that component
must be replaced.
