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Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gages >> Description and Operation >> Indicator/Warning Message Description and Operation >> Tighten Fuel Cap

Tighten Fuel Cap

The instrument panel cluster (IPC) illuminates the TIGHTEN FUEL CAP message in the driver information center (DIC) when the powertrain 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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