Park Assist Module: Operation
The system detection length from the rear of the vehicle is 0.3 meters to 1.5 meters. This area extends around the rear side of the vehicle. The system detection height from the ground is 0.2 meters to about 1.5 meters. The radio mutes when the system activates its audible tone.
When the driver selects Reverse, the system scans for objects behind the vehicle using four sensors (5) located in the rear bumper. Objects can be detected from up to 1.5 meters. A warning display (4) above the rear window provides both visible and audible warnings indicating the range of the object.
The system in active only when the vehicle is in reverse for vehicle speeds less than 16 Km/h (10 mph). If the vehicles Parking/Emergency Brake is applied, the system is deactivated.
The park assist system has a disable switch (2) located on the instrument panel center stack within the upper instrument panel switch pod. The default for the system is ON, but it may be turned OFF by a press of the switch. This is a momentary switch and the system will stay OFF until pressed again or the ignition key is cycled. If the park assist system is turned OFF, a single chime will sound and the EVIC will display the following message "PARK ASSIST DISABLED", when the vehicle is in reverse.
The display contains two sets of yellow and red Light Emitting Diode's (LED's) that the driver can see as they look over their shoulder while backing up. Each side of the vehicle has its own warning LED's. The system provides a visual warning by illuminating one or more yellow LED's as the vehicle gets closer to the object. As the vehicle continues to approaches the object, one red LED is illuminated and the system emits a series of short beeps. The tone will remain constant and both red LED's are illuminated once the vehicle is within 12 inches (30.5 cm) of the object.
- Ensure that the rear bumper is free of dirt and debris to keep the system operating properly.
- Jackhammers, large trucks, and other vibrations could affect the performance of the system.
- Ensure that the parking brake is not applied.
If "Service Park Assist System" appears in the EVIC after making sure the rear bumper is clean, proceed to diagnose the system using a scan tool and the appropriate diagnostic information.
To diagnose the Park Assist Module, use a scan tool and the appropriate body diagnostic information.