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April 1, 2008 Service bulletin

Loss of high speed gmlan communications, intermittent no crank, IPC gauge fluctuation, intermittent door...

Chevrolet technical service bulletin 08-07-30-021 for 2007-2008 Chevrolet Tahoe, 2007-2008 Chevrolet Silverado and 2007-2008 Chevrolet Corvette and others.

Bulletin number
08-07-30-021
Component
Electrical system: instrument cluster/panel
Summary
Loss of high speed gmlan communications, intermittent no crank, ipc gauge fluctuation, intermittent door lock cycling, transmission may not shift, dtcs u0073, u0100, u0101, u0102, 70140 (repair backed out terminal in transmission harness connector).

Owners of these vehicles have filed 593 complaints in the electrical category.

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