GM Service Manual Online
For 1990-2009 cars only

Indicators

Symbol

Reference


Object Number: 676444  Size: GT

ABS: ABS Description and Operation


Object Number: 676442  Size: GT

Air Bag: SIR System Description and Operation


Object Number: 676487  Size: GT

Brake: Brake Warning System Description and Operation


Object Number: 676629  Size: GT

The IPC displays this indicator when the ECM/PCM determines that the engine oil should be changed. 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.


Object Number: 1897156  Size: GT

Change Fuel Filter: Fuel System Description


Object Number: 676451  Size: GT

Charge: Charging System Description and Operation


Object Number: 797817  Size: GT

The IPC displays this indicator as determined by the ECM/PCM. The ECM/PCM monitors the engine coolant temperature sensor and the engine oil pressure sensor. When the ECM/PCM detects that the engine coolant temperature is higher than normal or the engine oil pressure is lower than normal, the ECM/PCM sends a class 2 message to the IPC requesting illumination.


Object Number: 1897159  Size: GT

The IPC displays this indicator when the diesel p articulate filter (DPF) needs regeneration. The IPC receives a class 2 message from the ECM requesting illumination. The indicator will illuminate yellow when regeneration is required. If the DPF indicator turns red, the ECM will also request illumination of the MIL indicator. During regeneration, the ECM will request illumination of a separate green DPF indicator.


Object Number: 800347  Size: GT

Differential Lock: Locking Differential Description and Operation


Object Number: 676459  Size: GT

DRL: Exterior Lighting Systems Description and Operation


Object Number: 800357  Size: GT

Engine Shutdown: Cooling System Description and Operation


Object Number: 800350  Size: GT

Exhaust Brake: Exhaust System Description


Object Number: 676441  Size: GT

Fasten Safety Belt: Seat Belt System Description and Operation


Object Number: 676457  Size: GT

High Beam: Exterior Lighting Systems Description and Operation


Object Number: 800340  Size: GT

Increase Engine RPM:

    •  Engine Control Module Description for the 6.6L (LMM) engine
    •  Powertrain Control Module Description for the 8.1L engine

Object Number: 676452  Size: GT

Low Air: Brake Warning System Description and Operation


Object Number: 676644  Size: GT

Low Coolant Level: Cooling System Description and Operation


Object Number: 676470  Size: GT

The low engine oil level indicator displays in the IPC when the ECM/PCM detects a low engine oil level condition. The ECM/PCM monitors the engine oil level switch. The ECM/PCM detects that the engine oil level is low when the switch is open and the engine oil level signal circuit is high.


Object Number: 676482  Size: GT

Low Washer Fluid: Wiper/Washer System Description and Operation


Object Number: 676454  Size: GT

Malfunction Indicator Lamp:

    •  Engine Control Module Description for the 6.6L (LMM) engine
    •  Powertrain Control Module Description for the 8.1L engine

Object Number: 1897142  Size: GT

Power Take-Off: Power Take-Off (PTO) Description and Operation


Object Number: 797814  Size: GT

Reduced Engine Power: Cooling System Description and Operation


Object Number: 800342  Size: GT

Reduce Engine RPM:

    •  Engine Control Module Description for the 6.6L (LMM) engine
    •  Powertrain Control Module Description for the 8.1L engine

Object Number: 800359  Size: GT

Service Brake Soon: Brake Warning System Description and Operation


Object Number: 800349  Size: GT

Service Transmission: Refer to Automatic Transmission Controls Schematics


Object Number: 799783  Size: GT

Trailer ABS: ABS Description and Operation


Object Number: 676455  Size: GT

Turn Signals: Exterior Lighting Systems Description and Operation


Object Number: 789266  Size: GT

Wait to Start:

    •  Glow Plug System Description for the 6.6L (LMM) engine
    •  Glow Plug System Description for the 7.8L (LF8) engine

Object Number: 800348  Size: GT

The IPC displays the water in fuel indicator in the message center when the water in fuel sensor detects water in the fuel system. The water in fuel sensor signal is low.