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September 1, 2014 Service bulletin

Chevrolet: some 2011-2012 model year vehicles may exhibit a situation with the hybrid power-train control...

Chevrolet technical service bulletin PIC-5380-B for 2011-2012 Chevrolet Volt.

Bulletin number
PIC-5380-B
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Chevrolet: some 2011-2012 model year vehicles may exhibit a situation with the hybrid power-train control module 2 (hpcm 2) part restriction. Diagnosis from gm tac may lead to replacement of hpcm 2.

Owners of these vehicles have filed 25 complaints in the transmission category.

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