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October 28, 2005 Service bulletin

Surge, chuggle or buck while driving downhill (approximately 1500 - 3000 feet above sea level) at highway...

Chevrolet technical service bulletin 3329 for 2004 Chevrolet Trailblazer, 2004 GMC Envoy and 2004 Oldsmobile Bravada and others.

Bulletin number
3329
Component
Vehicle speed control: cruise control
Summary
Surge, chuggle or buck while driving downhill (approximately 1500 - 3000 feet above sea level) at highway speeds with the cruise control on. Tt

Owners of these vehicles have filed 66 complaints in the acceleration category.

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