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March 1, 2002 Service bulletin

Subject regarding gm oil life system

Chevrolet technical service bulletin 0090001 for 2002 Chevrolet Trailblazer, 2002 GMC Envoy and 2002 Oldsmobile Bravada.

Bulletin number
0090001
Component
Engine and engine cooling: engine: gasoline
Summary
Subject regarding gm oil life system. Tt

Owners of these vehicles have filed 316 complaints in the engine category.

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