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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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1300890092023-12-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
0406010212005-02-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEW REAR MAIN SEAL AND SPECIAL TOOL FOR INSTALLATION. *TT
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
010601008A2002-10-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
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
10001998-08-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION ON HARMONIC TYPE NOISE FROM VEHICLE AT HIGHWAY SPEED. *YC
988765141998-07-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. CONDITION REGARDING THE ENGINE INTERMITTENTLY STALLS DURING A CLOSED THROTTLE DECELERATION FROM ABOUT 35 MPH. *YC
9712017765301998-04-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. COMMENTS THAT THE ENGINE RUNS ROUGH, HAS LACK OF POWER, HAS A KNOCK NOISE, AND/OR THE MIL (MALFUNCTION INDICATOR LIGHT) IS ILLUMINATED. *YC

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