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September 23, 2015 Service bulletin

14329B

GMC technical service bulletin GCUS-9-222 for 2007-2011 GMC Acadia, 2009-2011 Chevrolet Traverse and 2008-2011 Buick Enclave and others.

Bulletin number
GCUS-9-222
Component
Steering
Summary
14329B - Special Coverage (revised to update the Part Information and torque specs within the Service Procedure). Some 2008-2011 model year (MY) Buick Enclave, 2009-2011 MY Chevrolet Traverse, 2007-2011 MY GMC Acadia, and 2007-2010 MY Saturn OUTLOOK vehicles may develop a power steering pump wear condition that can cause an intermittent drop of power steering hydraulic pressure that will cause reduced or loss of steering assist. The vehicle may revert to manual steering which requires greater driver effort, particularly at low vehicle speeds. Dealers are to flush the power steering system, replace the power steering pump, and if it hasn't already been replaced, install a new steering gear valve housing.

Owners of these vehicles have filed 1,788 complaints in the steering category.

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