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December 13, 2001 Service bulletin

Subject regarding service engine soon light on, delayed transmission downshift and/or excessive fan noise

Chevrolet technical service bulletin 131201 for 2002 Chevrolet Trailblazer, 2002 GMC Envoy and 2002 Oldsmobile Bravada.

Bulletin number
131201
Component
Power train
Summary
Subject regarding service engine soon light on, delayed transmission downshift and/or excessive fan noise. Tt

Owners of these vehicles have filed 446 complaints in the transmission category.

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