Forward Collision Warning System Operation

The forward collision warning system works in conjunction with the adaptive cruise control system. During a possible collision event, the CCM commands:

• the HUD to flash red warning Light Emitting Diodes (LEDs).
• the IPC to activate a chime and commands.
• the ACM to mute audio volume.

The forward collision warning system is activated when the vehicle is moving forward at a speed greater than 8 kmh (5 mph). The CCM determines the distance and relative speed of the vehicle that is in the path of travel, utilizing a radar sensor (integral to the CCM) to detect other vehicles that are moving in the same direction. If the CCM determines that a collision is possible, the CCM commands the HUD module Light Emitting Diodes (LEDs) to flash and the IPC to chime.

The forward collision warning system and audible warning chime can be enabled and disabled through the message center display in the IPC. The system reverts to ON each ignition cycle. The HUD module and/or chime activates briefly to confirm the last setting.

There are three levels of sensitivity detection (HIGH, NORMAL and LOW) that are changed in the message center Driver Assist menu display.

If a MyKey ® restricted key is in use, the forward collision warning defaults to the most sensitive setting at the beginning of each ignition cycle. However, the MyKey ® user is able to adjust the forward collision warning sensitivity.

When a system fault is detected with the forward collision warning system, the message COLLISION WARNING NOT AVAILABLE, COLLISION WARNING NOT AVAILABLE SENSOR BLOCKED SEE MANUAL, or COLLISION WARNING MALFUNCTION is displayed in the IPC message center.