Technical Service Bulletins (TSBs) for the 1994 Sonoma are official communications between GMC & 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.

    SERVICE BRAKES, HYDRAULIC:POWER ASSIST

    • TSB #94266

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #39284

      PRODUCT SAFETY CAMPAIGN 94-C-61 - CAMPAIGN ANNOUNCEMENT TO RECALL CERTAIN 1994 S-TRUCK PICK-UP MODELS TO CORRECT THE VACUUM HOSE DETATCHMENT FROM THE BRAKE BOOSTER CHECK VALVE AS A RESULT OF AN ENGINE BACKFIRE. Read More »

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

    • TSB #240699

      Date Announced:
      JUL 24, 1999
      NHTSA ID:
      #608382

      SUBJECT REGARDING ABS 3-SENSOR EBC4 - SPECIAL POLICY. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #776001

      Date Announced:
      JUL 01, 1997
      NHTSA ID:
      #52935

      INFORMATION CONCERNING ENGINE KNOCK/RATTLE OR TAP NOISE BEFORE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). Read More »

    • TSB #776001

      Date Announced:
      MAR 01, 1997
      NHTSA ID:
      #51302

      KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED ... 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:CLUTCH ASSEMBLY

    ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

    • TSB #468306

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #37934

      IMPROPERLY CONSTRUCTED INSTRUMENT CLUSTER CAUSING ERRATIC TEMPERATURE GAUGE READINGS. *TW Read More »

    ELECTRICAL SYSTEM:IGNITION:MODULE

    STRUCTURE:BODY:HOOD

    • TSB #GM561204

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41076

      WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW Read More »

    LATCHES/LOCKS/LINKAGES:DOORS:LATCH

    • TSB #GM161514

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41072

      END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW Read More »

    VEHICLE SPEED CONTROL

    • TSB #GM569002

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41078

      STEPPER MOTOR CRUISE CONTROL WILL NOT RESUME OR RESET (REPLACE SMCC MODULE). *TW Read More »

    • TSB #576503

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39816

      LIGHT SURGE AT HIGHWAY SPEEDS DURING LIGHT THROTTLE. *TW Read More »

    • TSB #576503

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #4069300

      UNKNOWN Read More »

    SEATS:FRONT ASSEMBLY:RECLINER

    • TSB #461602A

      Date Announced:
      SEP 01, 1994
      NHTSA ID:
      #39728

      REAR SEAT RATTLES/LOOSENESS (INSTALL REAR SEAT LATCH). *TW Read More »