Indicator/Warning Message Description and Operation

Indicator/Warning Message Description and Operation






















CHANGE OIL

The instrument panel cluster (IPC) illuminates the CHANGE OIL indicator when the powertrain control module (PCM) determines that the engine oil should be changed. The IPC receives a class 2 message from the PCM indicating the remaining oil life percent. Once the oil is changed, perform the engine oil monitor reset procedure in order to clear the Change Engine Oil indicator. Refer to GM Oil Life System Resetting.

CHECK FUEL CAP

The IPC illuminates the CHECK FUEL CAP message in the driver information center (DIC) when the PCM detects a low fuel pressure condition. The IPC receives a class 2 message from the PCM requesting illumination.

LO FUEL

The IPC illuminates the LO FUEL message in the DIC when the IPC detects that the fuel level is less than a pre-determined value. The IPC receives a class 2 message from the PCM indicating fuel level percent.

OIL

The IPC illuminates the OIL message in the DIC when the PCM detects a low oil pressure condition with the signal circuit low. The IPC receives a class 2 message from the PCM requesting illumination.

OIL LIFE

The IPC illuminates the OIL LIFE message when the PCM determines that the engine oil should be changed. The IPC receives a class 2 message from the PCM indicating the remaining oil life percent.

UPSHIFT INDICATOR

The IPC illuminates the UPSHIFT INDICATOR when the PCM determines that the vehicle should be shifted to the next higher gear. The IPC receives a class 2 message from the PCM requesting illumination.