Buick TSB #PIC5669B
2010 Buick LaCrosse
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that have a loud whine noise from under the hood. On 2010 Buick LaCrosse and 2011 Buick Regal with Regular Production Option Code (LAF) engine technician will need to compare to a known good vehicle and replace the Brake Booster Electric Vacuum Pump only if an abnormal noise is heard. On the 2011 - 2014 Buick LaCrosse and 2012 - 2014 Buick Regal technician will need to compare to a known good vehicle and replace the Brake Booster Electric Vacuum Pump only if an abnormal noise is heard.
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