System Alerts
The system provides feedback to the driver though steering wheel vibrations and IPC message center visual alerts. When the system is active and a lane departure is detected by the IPMA, the IPMA sends the lane keeping alert request message to the BCM through the HS-CAN. Upon receipt of the message, the BCM activates the steering wheel vibration motor via the LIN circuit and gateways the lane keeping alert request message to the IPC through the MS-CAN. When the IPC receives the lane keeping alert request message, it generates the visual alert by turning the appropriate lane marking red in the IPC message center. Refer to System Display below.
System Display
When the lane keeping system is turned off, an indicator remains illuminated in the IPC message center.
When the lane keeping system is turned on, an overhead graphic of a vehicle and lane markings is displayed in the IPC message center. When the system is active, the color of the lane markings changes from gray to green or red to indicate the current system status.
Gray: The system is inactive and temporarily unable to provide a lane keeping alert on the indicated side(s). This may be caused by:
- The vehicle speed is under the activation limit
- Too close to lane markings
- Lane markings are too narrow or wide
- Road has no or poor lane markings in the camera field-of-view
- Following vehicle in front too closely
- IPMA camera blocked
- Windshield dirty or damaged
- Standing water on road
- Lighting conditions (significant sun angles, high sunload on the camera, shadows, snow, heavy rain or fog)
- Turn signal is active
- Vehicle is in a dynamic maneuver
- Tight curves on the road
- ABS active
- Stability or traction control active
Green: The system can detect at least one lane marking and is available and ready to provide a lane keeping alert activation on the indicated side(s).
Red: The system is providing or has just provided a lane keeping alert activation on the indicated side(s).