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Service bulletins for the 2011 Buick Regal

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1527 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SB-123132016-03-16. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP-5203-A2014-10-16. Service bulletin. ENGINE. CHEVROLET/BUICK/GMC: AFTER HAVING INTAKE CAMSHAFT OR INTAKE CAMSHAFT ACTUATOR REPLACED, SERVICE ENGINE SOON LIGHT IS ON, ENGINE HAS LOW POWER OR IS IDLING ROUGH WITH A WHINE NOISE FROM HIGH PRESSURE FUEL PUMP. MODEL 2010-2011 LACROSSE, EQUINOX, TERRAIN, REGAL. *PE
SB-123132013-10-17. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. GMC/BUICK/CHEVROLET SPECIAL COVERAGE: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOME MODEL VEHICLES, THE CHAIN IS ALLOW TO STRETCH DUE TO BALANCE CHAIN PINS WEARING AND THIS CAUSE ENGINE NOISES AND CHAIN COULD BREAK, DAMAGING ENGINE. MODELS 2010-11 LACROSSE, 2011 REGAL, 2010-11 EQUINOX, TERRAIN. *PE UPDATED 12/6/13. *PE
PB-123122013-04-22. Service bulletin. ENGINE. BUICK/CHEVROLET/GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE ENGINE CONTROL MODULE (ECM) IS TO BE REPROGRAM, WITH NEW SOFTWARE UPDATE, TO ENHANCE THE WAY ENGINE OIL LIFE IS MONITORED. MODELS 2010-2012 EQUINOX, REGAL, TERRAIN, LACROSSE. *PE UPDATED 9/24/13. *PE
PI-0562-F2013-04-19. Service bulletin. ENGINE. BUICK/CHEVROLET/GMC: ENGINE IS MAKES RATTLING NOISE WHEN STARTING UP AND IS INTERMITTENT, AND IS HEARD IN CAMSHAFT POSITION ACTUATOR DUE TO ENGINE SHUT DOWN AND OIL PRESSURE NOT ALLOW TO CAMSHAFT POSITION ACTUATOR. MODELS 2011-2012 LACROSSE, REGAL, EQUINOX, ORLANDO, TERRAIN. *PE
PI-0324-C2012-04-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE AND ENGINE COOLING. GMC/CHEVROLET/BUICK: TRANSMISSION PUMP NEEDS INSPECTING DUE TO ENGINE CRANKING BUT FAILS TO START, HAS NO FORWARD, NO REVERSE, TRANSMISSION LEAKS, HARD SHIFT AND NO CRANKING. *PE UPDATED 2/25/13. *PE UPDATED 1/29/2014 *JS
PIP-49902012-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. BUICK/CHEVROLET/GMC/PONTIAC/SATURN: SOME MODEL YEAR VEHICLES MAY EXPERIENCE SERVICE ENGINE SOON (SES) LAMP ILLUMINATED. ISSUE MAY BE CAUSED BY THE CONTROL SOLENOID/MODULE ASSEMBLY OR MAY HAVE DAMAGED OR POOR TERMINALS FOR UNDER HOOD FUSE BLOCK. *PE
SB-11-06-01-002A2012-03-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GMC/BUICK/CHEVROLET: NOISE CAN BE HEARD COMING FROM REAR OF ENGINE WHEN HOOD IS OPEN OR WHILE VEHICLE IS IDLING. *PE
SB-111952011-08-31. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. 2011 LACROSSE, EQUINOX, TERRAIN. THE MALFUNCTION LIGHT WILL COME ON ALONG WITH, ROUGH IDLE, POOR DRIVEABILITY, AND/OR POSSIBLE STALLING AT LOW THROTTLE OPENING. THIS IS DUE TO A PROBLEM WITH THE CAMSHAFT. *RM UPDATED 10/4/11. *PE UPDATED 12/5/11. *PE
PIP-4716A2011-06-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GM: THERE MAY BE A SHORT RATTLE NOISE FROM THE FRONT OF THE ENGINE WHEN IT IS STARTED. IT COULD BE A PROBLEM WITH CAM PHASERS OR THE ENGINE BELT. *RM
PIP-4495C2011-06-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GM: THERE MAY BE NOISE COMING FROM THE CYLINDER HEAD, BECAUSE OF LOW OIL PRESSURE WHICH IS CAUSED BY DEBRIS. *RM
SB-103162011-05-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:SOFTWARE. GM: THE ENGINE MAY STALL WHEN COMING TO A STOP OR TURNING IN HOT WEATHER. THE ENGINE WILL RESTART. THERE IS A SERVICE PROCEDURE FOR REPROGRAMMING THE ECM. *RM

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.