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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 497 (Hybrid/EV Energy Storage System) >> Diagnostic Information and Procedures >> Drive Motor Battery Noise >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

The hybrid drive motor generator battery has very few moving parts. The moving parts are the 3 high voltage (HV) contactor relays, the hybrid drive motor battery vent fan relay, and the vent fan motor.