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December 12, 2012 Service bulletin

Electrical system

Chevrolet technical service bulletin PIC4541E for 2013 Chevrolet Malibu, 2006-2013 Chevrolet Impala and 2007-2010 Chevrolet Equinox and others.

Bulletin number
PIC4541E
Component
Electrical system
Summary
This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Technician should never disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than off.

Owners of these vehicles have filed 2,518 complaints in the electrical category.

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