Indicator/Warning Message Description and Operation

Indicator/Warning Message Description and Operation

Indicators

Indicators (Part 1):

Indicators (Part 2):

Indicators (Part 3):

Indicators (Part 4):

Indicators (Part 5):

Indicators (Part 6):

Indicators (Part 7):

Indicators (Part 8):

CHANGE ENGINE OIL
The instrument panel cluster (IPC) illuminates the CHANGE ENGINE OIL indicator when a serial data message from the body control module (BCM) requests illumination. The BCM receives a controller area network (CAN) serial data message from the powertrain control module (PCM) when the PCM determines that the engine oil should be changed. After the oil is changed, reset the engine oil monitor. Refer to [Oil Life System Resetting] GM Oil Life System Resetting in Maintenance and Lubrication.

LOW FUEL
The instrument panel cluster (IPC) illuminates the Low Fuel indicator when the IPC detects that the fuel level is less than a pre-determined value. The IPC receives a serial data message indicating the fuel level percent from the body control module (BCM).

LOW OIL PRESSURE
The instrument panel cluster (IPC) illuminates the engine oil pressure indicator when the powertrain control module (PCM) detects low engine oil pressure, and the signal circuit is low. The PCM sends a controller area network (CAN) serial data message to the body control module (BCM) indicating low engine oil pressure. The BCM sends a serial data message to the IPC requesting illumination when the engine oil pressure is low.

REDUCED ENGINE POWER
The instrument panel cluster (IPC) illuminates the REDUCED POWER indicator when a serial data message from the body control module (BCM) requests illumination. The BCM receives a controller area network (CAN) serial data message from the powertrain control module (PCM) when the PCM determines that a certain amount of engine power has been lost.

SERVICE VEHICLE SOON
The instrument panel cluster (IPC) illuminates the service vehicle soon indicator during any of the following conditions:
^ The body control module (BCM) detects a security failure. The BCM sends a serial data message to the IPC requesting illumination
^ The BCM detects a malfunction in the passive trunk release system. The BCM sends a serial data message to the IPC requesting illumination.
^ The BCM detects a failure in the traction control system. The BCM sends a serial data message to the IPC requesting illumination.
^ The IPC detects a mismatch between its part number and the vehicle platform configuration sent by the BCM via a serial data message.
^ The IPC receives a serial data message from the BCM when certain malfunctions that are not related to the emissions system are detected.