Indicators

INDICATOR/WARNING MESSAGE DESCRIPTION AND OPERATION

INDICATORS















DIC WARNING MESSAGES













The DIC message reference numbers are for export vehicles only.

SPECIAL MONITOR WARNING MESSAGES






CHECK GAGES
The head up display (HUD) illuminates the CHECK GAGES indicator. The HUD receives a message requesting illumination from the IPC. The HUD illuminates the CHECK GAGES indicator when the IPC illuminates any of the following indicators:
- Charging system
- Engine coolant temperature
- Low fuel
- Low oil pressure.

ENGINE OIL CHANGE NOW
The IPC illuminates the ENGINE OIL CHANGE NOW message 82 in the driver information center (DIC) when the powertrain control module (PCM) determines that the engine oil life is 0 percent. The PCM sends a class 2 message to the IPC requesting illumination. After the oil is changed, reset the engine oil monitor. Refer to GM Oil Life System - Resetting in Maintenance and Lubrication.

ENGINE OIL CHANGE SOON
The IPC illuminates the ENGINE OIL CHANGE SOON message 81 in the driver information center (DIC) when the powertrain control module (PCM) determines that the engine oil life is less than 11 percent. The PCM sends a class 2 message to the IPC requesting illumination. After the oil is changed, reset the engine oil monitor. Refer to GM Oil Life System - Resetting in Maintenance and Lubrication.

KM/H AND MPH INDICATORS
km/h: The IPC illuminates the km/h indicator when the IPC detects that metric units have been requested. The IPC monitors the signal circuit of the ENG/MET switch. The IPC sends a class 2 message indicating the requested units to the head up display (HUD).
MPH: The IPC illuminates the MPH indicator when the IPC detects that English units have been requested. The IPC monitors the signal circuit of the ENG/MET switch. The IPC sends a class 2 message indicating the requested units to the head up display (HUD).

LOW FUEL
The IPC illuminates the CHECK GAGES LOW FUEL message 11 in the driver information center (DIC) when the IPC determines that the fuel level is less than a predetermined value. The IPC receives a class 2 message indicating the fuel level from the PCM.

LOW OIL LEVEL
The IPC illuminates the OIL LEVEL LOW message 36 in the driver information center (DIC) 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 IPC illuminates the CHECK GAGES OIL PRESSURE message 35 in the driver information center (DIC) when the PCM detects low engine oil pressure, and the signal circuit is low. The IPC receives a class 2 message requesting illumination from the PCM.

SERVICE VEHICLE SOON
The IPC illuminates the SERVICE VEHICLE SOON indicator 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.