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Indicator/Warning Message Description and Operation






















INDICATORS




DIC WARNING MESSAGES

CHANGE ENGINE OIL
The instrument panel cluster (IPC) illuminates the CHANGE ENGINE OIL message when the engine control module (ECM) determines that the engine oil should be changed. The IPC receives a class 2 message from the ECM requesting illumination. 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 GAGES
The instrument panel cluster (IPC) illuminates the CHECK GAGES indicator under the following conditions:
- The engine coolant temperature exceeds 125 °C (257 °F). The IPC receives a class 2 message from the powertrain control module (PCM) indicating the engine coolant temperature.
- The engine oil pressure is low. The IPC receives a class 2 message from the PCM indicating the engine oil pressure.
- The IPC has not been programmed after an IPC replacement. Refer to Service Programming System (SPS).

CHECK GAS CAP
The instrument panel cluster (IPC) illuminates the CHECK GAS CAP indicator in the message center when the gas cap is not tightened properly. The IPC receives a class 2 message from the engine control module (ECM) or the powertrain control module (PCM) indicating fuel tank pressure.

CHECK OIL LEVEL
The instrument panel cluster (IPC) illuminates the CHECK OIL LEVEL message in the driver information center (DIC) when the powertrain control module (PCM) detects a low engine oil level condition. The PCM only monitors the oil level switch signal circuit for a brief period between key on and ignition crank. The IPC receives a class 2 message from the PCM requesting illumination.

FUEL LEVEL LOW
The instrument panel cluster (IPC) illuminates the FUEL LEVEL LOW message in the driver information center (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 powertrain control module (PCM) indicating fuel level percent.

ICE POSSIBLE
The instrument panel cluster (IPC) illuminates the ICE POSSIBLE message in the DIC when the outside air temperature drops below 4�C (39�F). The IPC receives a class 2 message from the body control module (BCM) indicating the outside air temperature.

OIL LIFE RESET
The instrument panel cluster (IPC) illuminates the OIL LIFE RESET message 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 .

OIL PRESSURE LOW STOP ENGINE
The instrument panel cluster (IPC) illuminates the OIL PRESSURE LOW STOP ENGINE message in the driver information center (DIC) when the powertrain control module (PCM) detects a low oil pressure condition with the signal circuit low. The IPC receives a class 2 message from the PCM requesting illumination.

OVERSPEED
The instrument panel cluster (IPC) illuminates the OVERSPEED indicator when the IPC detects that the vehicle speed is more than 120 km/h (75 mph).

PROGRAM CLUSTER
The instrument panel cluster (IPC) illuminates the PROGRAM CLUSTER message in the driver information center (DIC) when the IPC has not been programmed after an IPC replacement. Refer to Service Programming System (SPS).

TIGHTEN FUEL CAP
The instrument panel cluster (IPC) illuminates the TIGHTEN FUEL CAP message in the driver information center (DIC) when the power control module (PCM) detects a low fuel pressure condition. The IPC receives a class 2 message from the PCM requesting illumination.
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