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June 1, 2011 Service bulletin

Buick/chevrolet/hummer/gmc/pontiac/cadillac/saturn: technicians may find dtcs P0601, P0603, P0604, P062F...

Chevrolet technical service bulletin PIP-4653 B for 2008-2010 Chevrolet Malibu, 2008-2009 Chevrolet Tahoe and 2008-2010 Chevrolet Equinox and others.

Bulletin number
PIP-4653 B
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Buick/chevrolet/hummer/gmc/pontiac/cadillac/saturn: technicians may find dtcs p0601, p0603, p0604, p062f or p1621 stored in the TCM as an active or a history code. Some of these dtcs can also be set in the ECM or fpcm. Make sure that you know which module (for example ECM, fpcm or TCM) has set the dtc before attempting to diagnose and repair this condition.

Owners of these vehicles have filed 1,455 complaints in the transmission category.

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