Indicators

INDICATOR/WARNING MESSAGE DESCRIPTION AND OPERATION










INDICATORS

CHANGE OIL SOON
The instrument panel cluster (IPC) illuminates the CHANGE OIL SOON indicator when the powertrain control module (PCM) determines that the engine oil should be changed. After the oil is changed, reset the engine oil monitor. Refer to 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 class 2 message indicating fuel level percent from the powertrain control module (PCM).

LOW OIL LEVEL
The instrument panel cluster (IPC) illuminates the LOW OIL indicator when the powertrain control module (PCM) detects low engine oil level, and the signal circuit is high. The PCM only monitors the signal circuit of the engine oil level switch for a brief period when the key moves from ON to START. The IPC receives a class 2 message requesting illumination from the PCM.

LOW OIL PRESSURE
The instrument panel cluster (IPC) illuminates the LOW OIL PRESSURE indicator in the message center when the powertrain control module (PCM) detects low engine oil pressure (EOP), and the signal circuit is low. The IPC receives a class 2 message requesting illumination message from the PCM.

SERVICE VEHICLE SOON
The instrument panel cluster (IPC) illuminates the SERVICE VEHICLE SOON message in the driver information center (DIC) when the powertrain control module (PCM) detects certain malfunctions that are not related to the emissions system. The IPC receives a class 2 message requesting illumination from the PCM.