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April 1, 2011 Service bulletin

Gm: malfunction light is on with four possible trouble codes stored

Chevrolet technical service bulletin PI-0448 for 2008-2011 Chevrolet Malibu, 2008-2011 Chevrolet Equinox and 2008-2010 Pontiac G6 and others.

Bulletin number
PI-0448
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Gm: malfunction light is on with four possible trouble codes stored. Rm

Owners of these vehicles have filed 2,848 complaints in the transmission category.

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