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January 1, 2004 Service bulletin

Calibration for improved transfer case operation in AWD mode

Chevrolet technical service bulletin 01843 for 2002-2004 Chevrolet Trailblazer, 2002-2004 GMC Envoy and 2002-2004 Oldsmobile Bravada and others.

Bulletin number
01843
Component
Power train: transfer case (4-wheel drive)
Summary
Calibration for improved transfer case operation in awd mode. Tt

Owners of these vehicles have filed 685 complaints in the transmission category.

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