Instrument Panel Cluster (IPC) - System Operation and Component Description

LED Low Beam Malfunction

The LED low beam indicator informs the driver an LED low beam is not functioning correctly. The IPC receives the headlamp low beam out message from the GWM over the HS-CAN3. The GWM receives the headlamp low beam out message from the BCM over the HS-CAN1.

Lights On

When the parking lamps are turned on, the BCM sends the parklamp status message to the GWM over the HS-CAN1. The IPC receives the parklamp status message from the GWM over the HS-CAN3 to illuminate the lights on indicator.

MIL

The IPC receives the MIL request from the GWM over the HS-CAN3. The GWM receives the MIL request from the PCM over the HS-CAN1.

PRNDL

The IPC uses the following messages to control the PRNDL:

Ignition status Power shed level request Transmission gear display Transmission shift mode display Vehicle speed Transport mode

The IPC receives the transmission gear display, transmission shift mode display and vehicle speed messages from the GWM over the HS-CAN3. The GWM receives the transmission gear display, transmission shift mode display and vehicle speed messages from the PCM over the HS-CAN1.

The IPC receives the ignition status, power shed level request and transport mode messages from the GWM over the HS-CAN3. The GWM receives the ignition status, power shed level request and transport mode messages from the BCM over the HS-CAN1.

When the vehicle is in transport mode, the PRNDL is not displayed upon entry or exit from the vehicle to prevent battery drain during longer periods of time when the vehicle is not in use, such as those experienced during vehicle transport. When load shed management determines the battery state of charge is low or critical when the ignition is OFF or in ACC, the IPC disables the PRNDL display to conserve battery voltage.

The IPC also uses a park position detect switch (part of the selector lever) input to signal the IPC the shift lever is fully seated in the PARK (P) position. The IPC compares the park position detect switch input with the transmission gear display message sent from the PCM.

Rear Fog Lamp (If Equipped)

The rear fog lamp indicator informs the driver that the rear fog lamps are turned on. The IPC receives the rear fog lamp indicator request from the GWM over the HS-CAN3. The GWM receives the rear fog lamp indicator request from the BCM module over the HS-CAN1.

Safety Belt Warning

The RCM monitors the driver safety belt position through the driver safety belt buckle switch. The RCM provides the driver safety belt buckle status message to the GWM over the HS-CAN2. The GWM provides the driver safety belt buckle status message to the IPC over the HS-CAN3 to either turn on or turn off the safety belt warning indicator.

Stability-Traction Control Indicator (Sliding Car Icon)

The IPC receives the stability-traction control indicator request message from the GWM over the HS-CAN3. The GWM receives the stability-traction control indicator request message from the ABS over the HS-CAN2.

Refer to ABS/Brake/Stability-Traction Control System Indication description for information on the conditions when the stability-traction control indicator (sliding car icon) is turned on.

Stability-Traction Control Disabled Indicator (Sliding Car OFF Icon)