Service bulletins for the 2011 Chevrolet Impala
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.
1238 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Engine are shown. Show all
| PIT3173C | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician that fluid contamination may be directed to one of the following testing centers according to the type of fluid needing testing. Dealer should send the correct fluid to the proper testing center. |
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| PIP5163 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure. |
| 06-06-01-010C | 2017-08-15. Service bulletin. ENGINE. This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period. |
| PIP5226 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings. |
| PIP5163A | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure. |
| PIP5210 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that may have an oil leak from the front of the vehicle. Technician will need to remove the oil pan and check the mating surface for flatness. Technician will need to machined by a machine shop if not flat. |
| 16-NA-222 | 2017-05-25. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES THE TECHNICIAN WITH WHAT MAY HAPPEN TO AN ENGINE DUE TO LACK OF MAINTENANCE. |
| PIP5282A | 2017-05-18. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ABOUT THE CALCULATION AND OPERATION OF THE ENGINE OIL LIFE MONITOR. THE MONITOR CALCULATES THE PERCENT OF OIL LIFE REMAINING, BASED ON 3 PATHWAYS. THE FIRST PATHWAY FOR OIL LIFE CALCULATION IS ENGINE REVOLUTIONS. THE SECOND PATHWAY FOR OIL LIFE CALCULATION IS THE MILEAGE FORM THE LAST REST FOR ALL GENERAL MOTORS POWERTRAINS EXCEPT THE VOLT. THE THIRD PATHWAY FOR OIL LIFE CALCULATION IS THE AMOUNT OF TIME THE OIL IS IN THE ENGINE. THE VOLT USES A 2 YEAR TIMER INSTEAD OF 1 YEAR. IT ALSO USES THE ENGINE REVOLUTION COUNTER. IT DOES NOT USE THE MILEAGE PATHWAY TO COUNT DOWN. |
| PIP5029G | 2017-05-16. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED. |
| 14636 | 2017-02-01. Service bulletin. ENGINE; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. 14636 - SPECIAL COVERAGE. SOME 2009 MODEL YEAR BUICK LACROSSE AND ALLURE VEHICLES AND 2009-2011 MODEL YEAR CHEVROLET IMPALA VEHICLES MAY HAVE A BROKEN SOLDER CONNECTION WITHIN THE ACCELERATOR PEDAL POSITION (APP) SENSOR. THIS CONDITION MAY RESULT IN REDUCED ENGINE POWER AND LOSS OF TRACTION CONTROL ASSIST. ALL OTHER ACCESSORIES AND VEHICLE SYSTEMS WILL FUNCTION NORMALLY. WHILE THE CONDITION IS PRESENT, THE DRIVER INFORMATION CENTER WILL DISPLAY “ENGINE POWER IS REDUCED,” AND MAY ALSO DISPLAY “SERVICE TRACTION CONTROL” AND “SERVICE STABILITRAK”. DEALERS ARE TO REPLACE THE ACCELERATOR PEDAL ASSEMBLY. |
| PIP5385A | 2016-11-03. Service bulletin. ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN. THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON OR REDUCED ENGINE POWER MESSAGE ON THE DIVER INFORMATION CENTER. |
| PIP4786C | 2016-10-20. Service bulletin. ENGINE AND ENGINE COOLING. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE LOW OIL PRESSURE MESSAGE. TECHNICIAN MAY ALSO FIND A DIAGNOSTIC TROUBLE CODE P0521 IN THE ENGINE CONTROL MODULE. TECHNICIAN SHOULD FOLLOW ALL PUBLISHED SERVICE INFORMATION DIAGNOSIS. WHEN USING A SCAN TOOL IF THE OIL PRESSURE IS LOW BUT THE OIL PRESSURE AT THE OIL FILTER HOUSING IS CORRECT, TECHNICIAN SHOULD INSPECT THE VALVE LIFTER OIL FILTER FOR DEBRIS/SLUDGE THAT COULD BE RESTRICTING OIL FLOW TO THE OIL PRESSURE SENSOR. TECHNICIAN SHOULD REMOVE THE VALVE LIFTER OIL FILTER AND CLEAN IT. IF THE VALVE LIFTER OIL FILTER CANNOT BE CLEANED REPLACE IT. |
| PI1394A | 2016-10-19. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES ADDITIONAL INFORMATION ON HOW TO INSTALL PISTONS AND SUGGEST WHAT TOOLS TO USE. |
| PI1384A | 2016-10-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO TEST THE COOLING FAN CIRCUIT FOR RESISTANCE IN ORDER TO PREVENT THE FAN MOTORS FROM LOSING PERFORMANCE ON POLICE VEHICLES. |
| 030604017I | 2016-10-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS. |
| 030603004R | 2016-10-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO TEST A BATTERY AND WHAT IS NEEDED TO WARRANTY A BATTERY. |
| 000601026I | 2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETINS PROVIDES INFORMATION ON THE INTAKE MANIFOLD INSPECTION/REPLACEMENT AFTER SERVERE INTERNAL ENGINE DAMAGE. |
| 000601012F | 2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES. |
| 16NA249 | 2016-10-14. Service bulletin. ENGINE AND ENGINE COOLING. THIS INFORMATIONAL BULLETIN EXPLAINS A POSSIBLE NORMAL WHINING NOISE FROM THE BALANCE SHAFT CHAIN IF THE VEHICLE HAS LESS THAN 10,000 MILES ON IT. |
| SB-07-06-01-016C | 2016-08-09. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION INTERNAL ENGINE NOISE OR DAMAGE AFTER OIL FILTER REPLACEMENT |
| SB-06-06-05-001G | 2016-08-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON CHANGES IN EXHAUST TONE FOR ACTIVE FUEL MANAGEMENT ENGINES WHEN IN THREE OR FOUR CYLINDER MODE. |
| PIP5210 | 2016-06-13. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| SB-12-06-04-003 | 2016-04-26. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| PIP-5064-B | 2013-04-10. Service bulletin. ENGINE. BUICK/CHEVROLET/PONTIAC/SATURN: AFTER INSTALLING REMAN HVV6 ENGINE, WOULD BE CONCERN WITH ROUGH RUNNING OR MISFIRE ON ONE OR BOTH BANKS OF ENGINE OR IDLE SURGING. MODELS 2005-11 LUCERNE, RENDEZVOUS, TERRAZA, IMPALA, MALIBU, MONTE CARLO, UPLANDER, G6, MONTANA SV6, AURA, RELAY, VUE. *PE UPDATED 4/9/13. *PE |
| SB-12-06-04-003 | 2013-02-21. Service bulletin. ENGINE. BUICK/CHEVROLET/PONTIAC: WHEN MESSAGE REDUCED ENGINE POWER IS DISPLAYED, THE MALFUNCTION INDICATOR LAMP WILL ILLUMINATED DUE TO POSSIBLE CAUSE OF TP SENSOR 1 AND TP SENSOR 2 EXCEEDING CALIBRATED VALUE FOR 2 SECONDS OR MORE. MODELS 2009-11 LUCERNE, 2006-08 MALIBU, 2006-11 IMPALA, 2006-09 G6. *PE 2006-2009 CHEVROLET UPLANDER, 2007-2009 CHEVROLET EQUINOX, 2006-2009 PONTIAC MONTANA SV6, 2007-2009 PONTIAC TORRENT, 2006*-2009 SATURN VUE, 2007 SATURN RELAY, AND 2007-2009 SATURN AURA. *JS |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.