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Service bulletins for the 2002 Buick Century

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PIP5232C2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire.
PIP5029H2017-08-15. 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. Update added part numbers for the cleaner and model years.
PIT3173C2017-08-15. 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.
PIP51632017-08-15. 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.
PIP52262017-08-15. 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.
PIP5163A2017-08-15. 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.
PIP5029G2017-05-16. 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.
PI1394A2016-10-19. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES ADDITIONAL INFORMATION ON HOW TO INSTALL PISTONS AND SUGGEST WHAT TOOLS TO USE.
000601012F2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES.
7092005-12-15. Service bulletin. ENGINE AND ENGINE COOLING. OIL LIFE SYSTEM RESET PROCEDURES - CARS. GM TECH LINK. *TT
3157A2005-10-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE WHINE OR BUZZ NOISE SOUNDS LIKE A GENERATOR TYPE NOISE ON 3.1L OR 3.8L ENGINES. *TT
08042005-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LIFE SYSTEM RESET PROCEDURES - CARS. *NM
0406040242005-03-09. Service bulletin. ENGINE AND ENGINE COOLING. POWERTRAIN CONTROL MODULE WILL NOT PROPERLY COMMUNICATE ON BOARD DIAGNOSTIC FREEZE FRAME INFORMATION TO NONTECH2 SERVICE OR TEST EQUIPMENT. *EH
0406020072005-01-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOW ENGINE COOLANT LEVEL INDICATOR ALWAYS ON. *TT
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
018762004-05-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHANGE ENGINE OIL SOON INDICATOR DOES NOT COME ON. *TT
00612A2004-03-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT CRANK NO START. SIT BULLETIN 1400565. *TT
015272004-02-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. A WHISTLE TYPE NOISE COMING FROM THE ENGINE. SIT BULLETIN 1406534. *TT
015332004-02-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE START AND STALL AFTER FUELING WITH NO DIAGNOSTIC TROUBLE CODES (DTCS). SIT BULLETIN 1408781. *TT
015842004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE (DTC) P0650 SET AFTER POWERTRAIN CONTROL MODULE (PCM) REPLACEMENT. SIT BULLETIN 1413730. *TT
015562004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE CRANKS BUT DOES NOT RUN. *TT
000604049B2004-02-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME VEHICLES BUILT PRIOR TO VIN BREAKPOINT 1F136536 MAY EXHIBIT INTERMITTENT MALFUNCTION INDICATOR LAMP / SERVICE ENGINE SOON INDICATOR ILLUMINATION; ANTI-LOCK BRAKE SYSTEM WARNING LIGHT ILLUMINATION; STALL / NO START CONDITION; VARIOUS ELECTRICAL SYSTEM FAILURES; AND / OR VARIOUS DRIVEABILITY CONCERNS. *TT
03-06-01-0102004-01-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL OR COOLANT LEAK. *TT GM REMINDER. *TT INSTALL NEW LOWER INTAKE MANIFOLD GASKET. UPDATED 7/18/08 *PE
0306040302003-08-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
0306010102003-04-26. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE OIL OR COOLANT LEAK. *TT

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