System Operation

Parking Aid - Video

System Operation

System Diagram





Network Message Chart

BCM (Body Control Module) Network Input Messages





APIM (Accessory Protocol Interface Module) Network Input Messages






Image Display

The liftgate must remain closed for correct operation of the video camera system.

NOTE: The guidelines will not appear if the liftgate is ajar.

The video camera system has 5 video features that are controlled in the FDIM (Front Display Interface Module):

- Fixed guidelines- this feature assists the driver with backing into a parking space or aligning the vehicle with an object.

- Active guidelines- this feature projects the intended path of the vehicle based upon steering wheel input.

- Visual park aid alert- this feature assists the driver to visually see the object causing the parking aid system to sound.

- Manual zoom- this feature assists the driver with connecting or towing a trailer allowing the driver to manually zoom closer to an object behind the vehicle.

- Video camera delay- this feature allows the driver to see the image behind the vehicle after the vehicle is shifted out of REVERSE and the vehicle speed has not exceeded 8 km/h (5 mph). The image will not be displayed if the vehicle is shifted into PARK.



For each one of these system features except the camera delay feature, the APIM (Accessory Protocol Interface Module) sends requests to the BCM (Body Control Module). The BCM (Body Control Module) sends the commands to the video camera over a dedicated LIN (Local Interconnect Network). The video camera delay feature is controlled with in the APIM (Accessory Protocol Interface Module).

All of the video camera features are enabled and disabled within the FDIM (Front Display Interface Module) menu screen. The video camera delay feature keeps the image displayed on the FDIM (Front Display Interface Module) until the vehicle reaches 8 km/h (5 mph) when the vehicle is shifted out of REVERSE or if any button on the FDIM (Front Display Interface Module) is pressed. The video camera fixed guidelines feature displays guidelines on top of the video image to assist the driver with alignment of the vehicle. A dashed line on the displayed image represents the center of the vehicle and 3 color-coded lines (red, yellow, green) identify different zones between the rear of the vehicle and objects.

The color-coded lines cannot indicate accurate or consistent distances between objects located behind the vehicle and at the rear of the vehicle. This normal condition is due to variances in vehicle ride height, including, but not limited to, vehicle loading.

The manual zoom feature is controlled by the video camera. The manual zoom feature has 3 zoom levels that are only active when the vehicle is in REVERSE. If the manual zoom feature is enabled and the vehicle is shifted out of REVERSE the manual zoom feature is disabled. The manual zoom feature must be re-enabled the next time the vehicle is shifted into REVERSE.

The BCM (Body Control Module) and the video camera communicate on a LIN (Local Interconnect Network) which is a dedicated single wire communication network.

The messages sent from the BCM (Body Control Module) to the video camera are:

- transmission selector (PRNDL) status (REVERSE/not REVERSE only)

- liftgate ajar status



- camera configuration data



- display manual zoom request



- parking aid audible warning status



- parking aid sensor distance to object data



The messages sent from the video camera to the BCM (Body Control Module) are:

- camera status



- display zoom status



- camera part number data



- visual park aid alert status



- fixed guideline status



Visual Park Aid

NOTE: The visual park aid alert feature is not an option with the police package.

The visual park aid alert feature utilizes the 4 parking aid sensor inputs from the PAM (Parking Aid Module) and the video camera image. When the transaxle selector is in REVERSE and an object is detected in the path of the parking aid sensor, parking aid range to object data is sent from the PAM (Parking Aid Module) through the BCM (Body Control Module) to the video camera.

The visual alerts are red, yellow or green and appear as highlights on top of the displayed image to indicate in which zone the object is detected. The highlighted visual alerts are still operational if the parking aid system is disabled within the IPC (Instrument Panel Cluster) and the visual alert feature is enabled.

Active guidelines display the intended vehicle path based upon the steering wheel angle.