WenmarOpen by Wenmar Pro

Service bulletins for the 1999 Buick LeSabre

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.

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

By type

By component

By trouble code

Bulletins, newest first
31152004-11-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. ENGINE INTAKE MANIFOLD COOLANT LEAK. *SC
0406010172004-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. NEW UPPER INTAKE MANIFOLD AND GASKET KITS. *TT
030542004-07-13. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. UPCOMING PRODUCT SAFETY RECALL FUEL PRESSURE REGULATOR. *MJ
00704A2003-11-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE 4T65E AUTOMATIC TRANSMISSION MAY EXHIBIT A CONDITION OF A HARSH GARAGE SHIFT INTO REVERSE OR DRIVE ON A COLD START. *TT
0307300172003-08-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GRIND NOISE OR NO VEHICLE MOVEMENT WHEN SHIFTING INTO DRIVE OR REVERSE. *TT
020730014A2002-10-15. Service bulletin. UNKNOWN OR OTHER. INFORMATION ON SERVICING 4T65-E TRANSAXLE SPACER PLATE AND GASKETS FOR VARIOUS MODELS FROM 1997 THROUGH 2002. *TT
0207300142002-10-11. Service bulletin. UNKNOWN OR OTHER. INFORMATION ON SERVICING 4T65E TRANSAXLE SPACER PLATE AND GASKETS. *TT
000730002B2002-10-11. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. CONCERNS WITH SLIPS, HARSH UPSHIFT OR GARAGE SHIFTS, LAUNCH SHUDDERS, FLARES, ERRATIC SHIFTS AND INTERMITTENT CONCERNS, DIAGNOSTIC TROUBLE CODE P1811 OR P0748 SET. *TT
010601008A2002-10-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
000730007A2002-04-02. Service bulletin. POWER TRAIN. SUBJECT REGARDING WHINE NOISE IN PARK OR NEUTRAL, SERVICE ENGINE SOON OR SERVICE VEHICLE SOON LAMP ILLUMINATION. *TT
010730032B2002-03-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME OWNERS MAY COMMENT ON A TRANSMISSION OIL LEAK. *TT UPDATED *EH
0107300442002-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUBJECT REGARDING HARSH ENGAGEMENT INTO REVERSE GEAR IN COLD AMBIENT TEMPERATURE. *TT
322001-10-29. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING EXTRA CLIPS IN THE 4T65E TRANSMISSION. *SLC
990730030A2001-05-24. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. OWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING BRAKE NOT APPLIED. *TT
0106010082001-05-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
0007300022000-06-01. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SOME OWNERS OF VEHICLES WITH A HYDRA-MATIC 4T65-E TRANSAXLE MAY COMMENT ON HARSH UPSHIFTS OR HARSH GARAGE SHIFTS, SOFT SHIFTS, SHUDDERS ON HARD ACCELERATION, OR SHIFTS ERRATIC. *TT
990702000-01-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. VOLUNTARY EMISSION CAMPAIGN FOR VEHICLES WITH AN OBD-II CALIBRATION THAT CAUSES A FALSE OXYGEN SENSOR CODE, P1133, TO SET UNDER CERTAIN CONDITIONS, RESULTING IN MALFUNCTION INDICATOR LAMP ILLUMINATION. *TT
9906040452000-01-12. Service bulletin. VEHICLE SPEED CONTROL. SUBJECT REGARDING LOW POWER / STUMBLE WHEN ACCELERATING IN TURNS OR STRAIGHT LINE. *TT
9908640252000-01-11. Service bulletin. STRUCTURE:BODY:DOOR. SUBJECT REGARDING WIND NOISE AT DRIVER'S FRONT SIDE DOOR B-PILLAR AREA. *TT
991111999-08-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CAMPAIGN PARTS BULLETIN REGARDING 4T65E MANUAL VALVE / LINK KIT REPLACEMENT. *TT
980681999-08-12. Service bulletin. EQUIPMENT:OTHER:LABELS. CERTAIN VEHICLES WERE BUILT WITH INCORRECT VEHICLE EMISSION CONTROL LABELS. THE EMISSION CONTROL (TUNE-UP) LABELS HAVE AN INCORRECT EMISSION VACUUM HOSE ROUTING SCHEMATIC. *TT
980681999-08-06. Service bulletin. EQUIPMENT:OTHER:LABELS. PRODUCT EMISSION CAMPAIGN REGARDING VEHICLES WITH AN INCORRECT VEHICLE EMISSION CONTROL LABEL. *TT
9908640071999-08-05. Service bulletin. STRUCTURE:BODY:DOOR. SOME CUSTOMERS MAY COMMENT THAT THE FRONT AND / OR REAR DOOR TRIM PANEL WILL COME LOOSE OR SEPARATES FROM THE TOP OF THE DOOR AT THE INNER SEALING STRIP. *TT
8396071999-01-25. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. COMMENTS ON SWITCHING BETWEEN LOCAL STATIONS OR CROSS TALK IN METROPOLITAN AREAS WITH SEVERAL STRONG AM STATIONS. *YC

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