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March 1, 2008 Service bulletin

Loss of high speed lan communications

Hummer technical service bulletin PIT4550 for 2008 Hummer H2.

Bulletin number
PIT4550
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Loss of high speed lan communications. Nj

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

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