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November 13, 2014 Service bulletin

Customer satisfaction. on some vehicles, a performance issue with the onstar® module might impact the...

Chevrolet technical service bulletin G-204563 for 2015 Chevrolet Malibu, 2015 Chevrolet Silverado 1500 and 2015 Chevrolet Impala and others.

Bulletin number
G-204563
Component
Equipment: electrical: navigational system(global positioning system)
Summary
14395 - customer satisfaction. On some vehicles, a performance issue with the onstar® module might impact the vehicle's battery life. This can cause a dead battery if the vehicle is not started for approximately 4 days. This condition can occur even if the onstar® system is not active. Dealers are to replace the onstar® module. If the customer does not have an active onstar® subscription, the onstar® module is to be deactivated after replacement.

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