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April 1, 2013 Service bulletin

Generation 9 OnStar® Modules Inoperative, Bluetooth Inoperative and Possible Battery Discharge Condition...

Chevrolet technical service bulletin 110844003A for 2011 Chevrolet Silverado 1500, 2011 Chevrolet Impala and 2011 Chevrolet Tahoe and others.

Bulletin number
110844003A
Component
Equipment: electrical
Summary
Generation 9 OnStar® Modules Inoperative, Bluetooth Inoperative and Possible Battery Discharge Condition (Replace OnStar® VCIM)

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