System Operation: Indicators

NOTE: It is important to view each of the cluster options in the Overview to identify which IPC uses specific fixed location indicators.

Refer to: Instrument Panel Cluster (IPC) - Overview .

4WD (4L, 4H, 4A) Indicators (Low-Level IPC Only)

The IPC receives the 4WD low indicator request, 4WD high indicator request and 4WD auto lamp display messages from the GWM over the HS-CAN3. The GWM receives the 4WD low indicator request, 4WD high indicator request and 4WD auto lamp display messages from the TCCM over the HS-CAN2.

ABS/Brake/Stability-Traction Control System Indication

The brake/stability-traction control system indication is controlled in many instances by the ABS module. The ABS module can illuminate multiple indicators for various fault conditions. The following table provides a summary of the basic fault conditions and the indicators that are illuminated for each condition.

NOTE: Refer to the Normal Operation and Fault Condition description before each brake/stability-traction control system indicator Pinpoint Test (PPT) for the IPC default action for network/missing message conditions.

Event/Fault Condition	ABS Indicator Status	Brake Warning Indicator Status	Electronic Park Brake Fault Indicator Status	Stability-Traction Control Indicator Status	Traction Control Disabled Indicator Status
Parking brake applied	Off	Flashing while applying On when applied	Off	Off	Off
Low brake fluid level or brake fluid level input concern	Off	On	Off	Off	Off
Stability-traction control event	Off	Off	Off	Flashing	Off
Stability-traction control disabled by driver	Off	Off	Off	Off	On
Single wheel speed sensor faults	On	On	Off	On	Off
2 wheel speed sensor faults on the same axle or 3 wheel speed sensor faults	On	Flashing or on	On	On	Off
HCU valve fault	On	On	Off	On	Off
ABS module fault	On	Flashing or on	On	On	Off
HCU pressure sensor fault (master cylinder pressure input)	Off	On	Off	On	Off
ABS battery voltage faults	On	Flashing or on	On	On	Off
ABS pump motor fault	On	On	Off	On	Off
ABS low brake booster vacuum or vacuum sensor fault	Off	On	Off	Off	Off
Steering wheel angle sensor center not found fault	Off	On	Off	On	Off
ABS to CAN total failure	Off	Off	Off	On	Off
Thermal shutdown to brake over-temperature condition	Off	Off	Off	Off	Off
Parking brake switch fault	Off	Flashing	On	Off	Off
Configuration mismatch	Off	Off	Off	Off	Off
Vehicle Identification Number (VIN) mismatch	On	On	Off	On	Off
ACC and ABS both active	Off	Off	Off	Flashing	Off

ABS Warning Indicator

The IPC receives the ABS warning indicator request message from the GWM over the HS-CAN3. The GWM receives the ABS warning indicator request message from the ABS module over the HS-CAN2. If a fault condition exists in the ABS, the ABS module sends the ABS warning indicator request message to either flash or illuminate the ABS warning indicator.

Refer to ABS/Brake/Stability-Traction Control System Indication description in Indicators for information on the conditions when the ABS warning indicator is turned on.

Airbag Warning Indicator

The IPC receives the airbag warning indicator request from the GWM over the HS-CAN3. The GWM receives the airbag indicator request from the RCM over the HS-CAN2. If a SRS concern is detected, the RCM sets a DTC and the IPC illuminates the airbag warning indicator.

Auto Stop/Start Indicator

The auto stop/start indicator informs the driver of the following states:

Indicator State	System Status
Solid green	The auto stop-start feature has temporarily turned off the engine.
Solid amber	A stop-start system concern exists.
Flash in either green or amber	A system state as determined by the PCM.

The IPC receives the stop-start standby indicator message from the GWM over the HS-CAN3. The GWM receives the stop-start standby indicator message from the PCM over the HS-CAN1.

Brake Warning Indicator

The brake warning indicator informs the driver the brake fluid level is low, there is a failure in the base brake system or the park brake is applied. The IPC uses the following 3 messaged inputs to control the brake warning indicator.

Network Message	Condition
Brake warning indicator request	Indicates a brake system concern from the ABS.
Brake (red) warning indicator request	Indicates a low brake fluid level concern.
Electronic park brake (red) indicator request	Indicates the parking brake is applied.

The IPC receives all network messages required to operate the brake warning indicator from the GWM over the HS-CAN3.

The GWM receives the brake (red) warning indicator request and the electronic park brake (red) indicator request from the ABS module over the HS-CAN2.

The GWM receives the brake warning indicator request from the BCM over the HS-CAN1.

Refer to ABS/Brake/Stability-Traction Control System Indication description in Indicators for information on the conditions when the brake warning indicator is turned on.

Charging System Warning Indicator

The charging system warning indicator is controlled by the IPC based upon the battery low state of charge message received from the GWM over the HS-CAN3. The GWM receives the battery low state of charge message from the BCM over the HS-CAN1. When a fault is detected in the charging system, the BCM sends the IPC the battery low state of charge message to illuminate the charging system warning indicator.

Door Ajar, Hood Or Liftgate Warning Indicator

The IPC provides a door ajar warning indicator along with message displays to indicate the status of the doors. The IPC receives the driver door ajar, passenger door ajar, left rear door ajar, right rear door ajar status, hood ajar status and liftgate ajar status messages from the GWM over the HS-CAN3. The GWM receives the driver door ajar, passenger door ajar, left rear door ajar, right rear door ajar status, hood ajar status and liftgate ajar status messages from the BCM over the HS-CAN1. The BCM monitors each of the ajar inputs and sends the specific door ajar status message to the IPC to display the ajar warning indicator and corresponding warning message.

Eco Select Mode Indicator

The IPC provides the Eco Select indicator to inform the driver the Eco Select (economy) mode has been selected. The IPC receives the selectable drive mode request and selectable drive mode message request messages from the GWM over the HS-CAN3. The GWM receives the selectable drive mode request and selectable drive mode message request messages from the ABS module over the HS-CAN2.

Electronic Park Brake Indicator

The electronic park brake indicator indicates a fault in the electronic park brake system. The IPC receives the electronic park brake (yellow) indicator request from the GWM over the HS-CAN3. The GWM receives the electronic park brake (yellow) indicator request from the ABS module over the HS-CAN2.

Electronic Limited Slip Differential (eLSD) Indicator

The Electronic Limited Slip Differential (eLSD) indicator informs the driver the locking differential is engaged. The IPC receives the rear differential lock indicator request message from the GWM over the HS-CAN3. The GWM receives the rear differential lock indicator request message from the PCM over the HS-CAN1.

Engine Over-Temperature

The IPC receives the engine overheat indication request and the engine coolant temperature data from the GWM over the HS-CAN3. The GWM receives the engine overheat indication request and the engine over-temperature message from the PCM over the HS-CAN1.

Front Fog Lamp Indicator

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

High Beam Indicator

The high beam indicator informs the driver that the high beams are turned on. The IPC receives the headlamp high/low beam status message from the GWM over the HS-CAN3. The GWM receives the headlamp high/low beam status message from the BCM module over the HS-CAN1.

Hill Descent Control Indicator

The hill descent control indicator informs the driver the hill descent function is turned on and may be in ready mode, active control mode or over-temperature mode. The IPC receives the hill descent message request from the GWM over the HS-CAN3. The GWM receives the hill descent message request from the ABS module over the HS-CAN2.

LH- RH Turn Signal/Hazard Indicator

When the multifunction switch is in the LH or RH turn position or if the hazard switch is on, the BCM sends the right turn lamp on request, the left turn lamp on request or both messages to the GWM over the HS-CAN1. The GWM sends the right turn lamp on request, the left turn lamp on request or both messages to the IPC over the HS-CAN3. Upon receipt of the applicable turn signal on/off data, the IPC flashes the turn signal indicator on and off.

Lights On Indicator

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.

Low Fuel Indicator

The IPC provides the low fuel indicator to indicate the fuel level is low at several preset stages before the driver runs out of fuel. The IPC uses the calculated DTE to control the low fuel indicator. When the fuel level reaches approximately 120 km (75 miles) (MyKey® users only) and 80 km (50 miles), 40 km (25 miles), 20 km (10 miles) and 0 km (0 miles) for MyKey® and administrator key users, the IPC turns on the low fuel indicator.

Low Engine Oil Pressure Warning Indicator

The IPC uses the oil pressure warning indicator request and engine rpm data to control the low engine oil pressure warning indicator. Following the bulb prove-out, the low oil pressure warning indicator turns off with the engine off. The IPC requires engine rpm above 400 rpm before the message center displays the low engine oil pressure RTT warning indicator.

The engine oil pressure switch is hardwired to the PCM. The PCM provides the oil pressure warning indicator request and the engine rpm data to the GWM over the HS-CAN1. The GWM provides the oil pressure warning indicator request and engine rpm data to the IPC over the HS-CAN3.

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.

Powertrain Malfunction (Wrench) Indicator

The IPC provides a powertrain malfunction (wrench) message center indicator to indicate transmission, Electronic Throttle Control (ETC), 4WD, gearshift concerns and BCM concerns.

The IPC receives all the required messages from the GWM over the HS-CAN3.

The GWM receives the transmission service required message from the TCM over the HS-CAN1.

The GWM receives the gearshift module service required message from the GSM over the HS-CAN2.

The GWM receives the engine service required message from the PCM over the HS-CAN1.

The GWM receives the 4WD service required message from the TCCM over the HS-CAN2.

The GWM receives the body service required message from the BCM over the HS-CAN1.

PRNDL Indicator

The IPC uses the following messages to control the PRNDL:

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

The IPC receives all the required messages from the GWM over the HS-CAN3.

The GWM receives the transmission gear display, transmission gear display mode from the TCM over the HS-CAN1. The GWM receives the transport mode, ignition status and battery shed level request messages from the BCM over the HS-CAN1.

The GWM receives the vehicle speed message from the PCM 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.

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 park detect input controls the display of the "P". The IPC compares the park position detect switch input with the transmission gear display message sent from the TCM.

Seatbelt Warning Indicator

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

Sport Mode Indicator

The sport mode indicator informs the driver the transmission is operating in sport mode based on the driver requested input.

If equipped with column shift, the IPC receives the powertrain drive mode status message from the GWM over the HS-CAN3. The GWM receives the powertrain drive mode status message from the PCM over the HS-CAN1.

If equipped with rotary shfit, the IPC receives the selectable drive mode request and selectable drive mode message request messages from the GWM over the HS-CAN3. The GWM receives the selectable drive mode request and selectable drive mode message request messages from the ABS module over the HS-CAN2.

Snow/Wet Mode Indicator

The IPC provides the Snow/Wet indicator to inform the driver the vehicle is operating in Snow/Wet mode based on the driver requested input.

The IPC receives the selectable drive mode request and selectable drive mode message request messages from the GWM over the HS-CAN3. The GWM receives the selectable drive mode request and selectable drive mode message request messages from the ABS module over the HS-CAN2.

Stability-Traction Control Indicator (Sliding Car Icon)

The stability-traction control indicator informs the driver the stability-traction control system is active by flashing the indicator or that a fault condition exists by illuminating the indicator steady.

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 module over the HS-CAN2.

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

Traction Control Disabled Indicator (Sliding Car OFF Icon)

When the driver enables or disables the stability-traction control system, the ABS module sends the stability-traction control off indicator request message to the GWM over the HS-CAN2. The GWM sends the stability-traction control off indicator request message to the IPC over the HS-CAN3 to illuminate or turn off the stability-traction control disabled indicator (sliding car OFF icon) based upon the system state.

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

When a MyKey® administrator has set the AdvanceTrac® feature to always on and a MyKey® programmed key is in use, the stability-traction control system cannot be disabled. The menu selection in the message center used to disable the stability-traction control system does not display when a MyKey® is in use, but remains active for the MyKey® administrator to select the AdvanceTrac® always on feature off. The stability-traction control indicator still functions normally to indicate a stability-traction control system fault and a stability-traction control active event.

TPMS Warning Indicator

The IPC receives the tire pressure warning indicator message from the GWM over the HS-CAN3. The GWM receives the tire pressure warning indicator message from the BCM over the HS-CAN1.

If the BCM determines the tire pressure has exceeded the low tire pressure limits, the tire pressure warning indicator request message is sent to the IPC to illuminate the TPMS warning indicator.

If a TPMS monitor or sensor fault condition exists, the BCM sends the tire pressure warning indicator request message to the IPC to flash the TPMS warning indicator. The IPC flashes the TPMS warning indicator for 75 seconds then turns the indicator on solid.

Tow Haul Indicator

The tow haul indicator illuminates when the tow haul system has been engaged and is actively providing tow haul control for the vehicle.

If equipped with column shift, the PCM sends the powertrain drive mode status message to the GWM over the HS-CAN1. The IPC receives the powertrain drive mode status message from the GWM over the HS-CAN3.

If equipped with rotary shift, the IPC receives the selectable drive mode request and selectable drive mode message request messages from the GWM over the HS-CAN3. The GWM receives the selectable drive mode request and selectable drive mode message request messages from the ABS module over the HS-CAN2.