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Service bulletins for the 1993 Buick Regal

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.

22 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
980332000-12-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. VOLUNTARY EMISSION CAMPAIGN INVOLVING THE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE REPLACEMENT AND, CONVERTIBLE ONLY, PROM REPLACEMENT. *TT
876002A2000-12-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT REAPPEAR UNTIL THE NEXT CHANGE OF OIL. *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
9903090041999-12-29. Service bulletin. SUSPENSION. CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
980331999-01-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VLAVE REPLACEMENT AND CONVERTIBLE ONLY, PROM REPLACEMENT. *YC
980331999-01-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. VOLUNTARY EMISSION RECALL CAMPAIGN - EVAPORATIVE EMISSION CONISTER PURGE SOLENOID VALVE REPLACEMENT AND, CONVERTIBLE ONLY, PROM REPLACEMENT. *YC
100011998-08-24. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP. *YC
9708017350261998-04-07. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. COMMENT THAT THE ABS LIGHT IS ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) 46 AND 86 SET AS CURRENT OR HISTORY. *YC
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
5310181996-04-25. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. UNKNOWN
5761041995-11-01. Service bulletin. VEHICLE SPEED CONTROL. UNKNOWN
5761131995-11-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UNKNOWN
5771061995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. COLD START RATTLE NOISE. *TW
5771041995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH 1-2 UPSHIFTS. *TW
5310051995-03-31. Service bulletin. VISIBILITY:WINDSHIELD; VEHICLE SPEED CONTROL. FRONT WINDOW SCRAPING NOISE WHEN ROLLING GLASS DOWN. *TW
1334051995-03-06. Service bulletin. SUSPENSION:FRONT:MACPHERSON STRUT. REAR STRUT RELATED THUMPING/SQUEAKING NOISE. *TW
435012A1995-03-06. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. ABS WARNING LIGHT IS ON. *TW
4350121995-02-09. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. ABS WIRE HARNESS FOR THE RIGHT FRONT WHEEL MAY RUB ON THE BRAKE LINE CAUSING THE ABS WARNING LIGHT TO COME ON. *TW

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