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Service bulletins for the 1998 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.

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

By type

By component

By trouble code

Bulletins, newest first
030542004-07-13. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. UPCOMING PRODUCT SAFETY RECALL FUEL PRESSURE REGULATOR. *MJ
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
010730032B2002-03-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME OWNERS MAY COMMENT ON A TRANSMISSION OIL LEAK. *TT UPDATED *EH
322001-10-29. Service bulletin. UNKNOWN OR OTHER. INFORMATION REGARDING EXTRA CLIPS IN THE 4T65E TRANSMISSION. *SLC
010601007A2001-08-31. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. EXPERIENCING EXCESSIVE ENGINE COOLANT CONSUMPTION, OR AN ENGINE COOLANT LEAK NEAR OR UNDER THE THROTTLE BODY AREA OF THE UPPER INTAKE MANIFOLD. *TT
0106010082001-05-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
0106010072001-05-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. ENGINE COOLANT CONSUMPTION OR COOLANT LEAK (INSPECT FOR MATERIAL DEGRADATION/REPLACE INTAKE MANIFOLDS) *TT UPDATED 11/02/07 *NJ
9906040452000-01-12. Service bulletin. VEHICLE SPEED CONTROL. SUBJECT REGARDING LOW POWER / STUMBLE WHEN ACCELERATING IN TURNS OR STRAIGHT LINE. *TT
9906040371999-11-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION:MODULE. SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *MJS
9907300071999-09-21. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. VEHICLES WITH HYDRA-MATIC TRANSAXLE MAY EXHIBIT VEHICLE SHUDDER WHEN REAPPLYING THROTTLE (GREATER THAN 50%) AFTER STOPPING. *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
8496021999-03-08. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. SOME CUSTOMERS MAY COMMENT THE RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME. *YC
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
988330051999-01-11. Service bulletin. SUSPENSION. SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE
98849602A1999-01-11. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. SOME CUSTOMERS MAY COMMENT ON RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME. *YC
98100071998-08-24. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INFORMATION ON A/C CONTROL HEAD DISPLAYS IN CELSIUS. *YC
100031998-08-24. Service bulletin. POWER TRAIN. THIS BULLETIN MENTIONS THAT TECHNICIANS MAY ENCOUNTER SPS ERROR CODES WHEN ATTEMPTING TO REPROGRAM THE POWER TRAIN CONTROL MODULE. *TT
100011998-08-24. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP. *YC
10001998-08-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION ON HARMONIC TYPE NOISE FROM VEHICLE AT HIGHWAY SPEED. *YC
988390111998-08-03. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. SOME CUSTOMERS MAY COMMENT ABOUT ON A GAP BETWEEN THE PASSENGER SUPPLEMENTAL INFLATABLE RESTRAINT (PSIR) MODULE AND THE INSTRUMENT PANEL TRIM PLATE. *YC

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