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June 1, 2003 Service bulletin

Labor operation assignments for control module reprogramming

Hummer technical service bulletin 020604057B for 2003 Hummer H2, 2003 Pontiac Pontiac and 2003 Buick Buick and others.

Bulletin number
020604057B
Component
Engine and engine cooling: engine
Summary
Labor operation assignments for control module reprogramming. Tt

Owners of these vehicles have filed 16 complaints in the engine category.

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