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February 23, 2017 Service bulletin

14648A

Chevrolet technical service bulletin GCUS-3-854 for 2009 Chevrolet Tahoe, 2009-2010 Chevrolet Equinox and 2009-2010 Chevrolet Silverado and others.

Bulletin number
GCUS-3-854
Component
Equipment: other: owners/service/other manual
Summary
14648A - Customer Satisfaction. Certain vehicles have a performance issue with their OnStar modules that could impact the vehicle?s battery life. If the vehicle?s OnStar module contains this condition, the OnStar green telltale light will be illuminated even when the vehicle is off. This condition can drain the vehicle?s battery if the vehicle is not started for approximately four days. The condition may also render the OnStar system inoperative, which would disable all OnStar services, including automatic crash response and emergency roadside services. This condition can occur even if the vehicle is not actively subscribed to OnStar. Dealers are to remove the fuse for the OnStar module to reset it.

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