Commander 2WD V8-4.7L Flex Fuel (2009)
Parking Assist Warning Indicator: Testing and Inspection
PARK ASSIST SYSTEM
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component
diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to
discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper
precautions could result in accidental airbag deployment.
The following textual messages May appear in the Electronic Vehicle Information Center (EVIC):
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SERVICE PARK ASSIST - If a service park assist textual message appears in the EVIC display, be certain to confirm the following:
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The parking brake is not applied.
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The rear bumper is free of ice, snow, mud or other obstructions that will prevent the system from operating properly.
The park assist system is self correcting, please verify that the area of the rear bumper where the sensors are located is not blocked by ice, snow,
mud or other obstructions. If the area is blocked, remove the blockage, shift the transmission selector lever into reverse and verify the message is
no longer present in the EVIC display. The system may also be corrected when the vehicle is driven at a speed greater than 14 kph (8 mph).
NOTE: The presence of jackhammers, large trucks, and other vibrations in the vicinity of the vehicle could impact the performance of the
system.
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PARK ASSIST DISABLED - If a park assist disabled textual message appears in the EVIC display, the system may either be manually cut-off or
have a hard fault. If the manual cut-off switch is not illuminated further investigation may be needed.
The hard wired circuits between components related to the park assist system may be diagnosed using conventional diagnostic tools and procedures.
Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of
wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the park assist system or the electronic controls or
communication between modules and other devices that provide some features of the park assist system. The most reliable, efficient, and accurate means
to diagnose the park assist system or the electronic controls and communication related to park assist system operation requires the use of a diagnostic
scan tool. Refer to the appropriate diagnostic information.
