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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 187 (Instrument Panel System Displays & Gages) >> Diagnostic Information and Procedures >> Volt Gage Inaccurate or Inoperative >> Diagnostic Aids

Diagnostic Aids

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The voltmeter may fluctuate between 12 and 14 volts. This is normal operation. For further information, refer to Charging System Description and Operation or refer to Voltmeter Gage under the Instrument Panel section in the owners manual.