Technical Service Bulletins (TSBs) for the 1991 Regal are official communications between Buick & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    SUSPENSION

    • TSB #990309004

      Date Announced:
      OCT 01, 1999
      NHTSA ID:
      #6088680

      CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT Read More »

    SUSPENSION:FRONT:MACPHERSON STRUT

    • TSB #133405

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39080

      REAR STRUT RELATED THUMPING/SQUEAKING NOISE. *TW Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT

    • TSB #435012A

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39072

      ABS WARNING LIGHT IS ON. *TW Read More »

    • TSB #435012

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #37955

      ABS WIRE HARNESS FOR THE RIGHT FRONT WHEEL MAY RUB ON THE BRAKE LINE CAUSING THE ABS WARNING LIGHT TO COME ON. *TW Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #876002A

      Date Announced:
      JUL 01, 1998
      NHTSA ID:
      #615073

      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. Read More »

    ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

    • TSB #130089009

      Date Announced:
      SEP 01, 2013
      NHTSA ID:
      #10246631

      Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    POWER TRAIN:DRIVELINE:DRIVESHAFT

    • TSB #577106A

      Date Announced:
      FEB 01, 1997
      NHTSA ID:
      #51497

      COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW Read More »