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Service bulletins for the 1993 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.

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

By type

By component

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
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
9907300302000-03-01. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
8320061999-02-01. Service bulletin. STRUCTURE:BODY. SOME CUSTOMERS MAY COMMENT THAT THERE IS CORROSION ( RUST ) APPEARING ON THE LEFT AND /OR RIGHT ROCKER PANEL(S). *YC
988330051999-01-11. Service bulletin. SUSPENSION. SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE
100011998-08-24. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP. *YC
9711016310411998-03-30. Service bulletin. STRUCTURE:BODY:DOOR. COMMENTS ON INOPERATIVE POWER DOOR LOCKS (FRONT AND/OR REAR DOORS).
7316081997-08-14. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:INTERIOR. EXCESSIVE VIBRATION OF ELECTROCHROMIC INSIDE REARVIEW MIRROR. *TW
577106A1997-06-27. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW
577106A1997-05-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. COLD START RATTLE NOISE. *TW
9573T40011996-04-25. Service bulletin. POWER TRAIN:DRIVELINE. GRINDING AND/OR GROWLING NOISE IN PARK ON INCLINE.*SD
5364011995-11-01. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. UNKNOWN
5761041995-11-01. Service bulletin. VEHICLE SPEED CONTROL. UNKNOWN
5761131995-11-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UNKNOWN
5364011995-11-01. Service bulletin. ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. DIM HEADLAMPS, SLOW WINDSHIELD WIPERS, ETC RESULTING FROM LOW/NO GENERATOR OUTPUT. *TW
9315311995-11-01. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. LITTLE TO NO AIR FLOW FROM SIDE WINDOW DEFROSTER DUCTS. *TW
5771061995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. COLD START RATTLE NOISE. *TW
4363021995-01-11. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. FAINT BUZZING NOISE FROM FRONT OF DASH AREA. *TW
4311081995-01-11. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. HVAC SYSTEM MAY INTERMITTENTLY TURN ON IN DEFOG OR DEFROST MODE BY DEFAULT. *TW

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