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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Description and Operation >> Cooling System Description and Operation >> Engine Coolant Indicators >> Reduced Engine Power

Reduced Engine Power

The IPC illuminates the REDUCED ENGINE POWER indicator in the message center when the IPC detects a reduced engine power condition from the PCM. The IPC receives a class 2 message from the PCM requesting illumination when the engine temperature reaches 128°C (262°F).