Technical Service Bulletins (TSBs) for the 1997 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

    • TSB #PIP4723F

      Date Announced:
      JAN 14, 2022
      NHTSA ID:
      #10208027

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM

    • TSB #270901

      Date Announced:
      SEP 27, 2001
      NHTSA ID:
      #626507

      SUBJECT REGARDING NECESSARY RESURFACING OF THE PARK BRAKE DRUM. *JG Read More »

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

    SERVICE BRAKES, AIR:ANTILOCK

    • TSB #020525006A

      Date Announced:
      DEC 01, 2002
      NHTSA ID:
      #10000749

      ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS ON VARIOUS MODELS INCLUDING THE 1995 AND 1996 ENVOY. *TT Read More »

    ENGINE AND ENGINE COOLING

    • TSB #PI0969

      Date Announced:
      MAY 03, 2013
      NHTSA ID:
      #10139019

      This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern. Read More »

    • TSB #01225

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007717

      ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ Read More »

    • TSB #990602012D

      Date Announced:
      APR 01, 2002
      NHTSA ID:
      #634218

      SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM). NLM Read More »

    • TSB #990602012C

      Date Announced:
      JUN 01, 2001
      NHTSA ID:
      #623086

      SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT Read More »

    • TSB #990602012B

      Date Announced:
      FEB 01, 2000
      NHTSA ID:
      #611277

      SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT Read More »

    • TSB #990602012A

      Date Announced:
      JAN 01, 2000
      NHTSA ID:
      #609717

      SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. *TT Read More »

    • TSB #990602012

      Date Announced:
      JUN 01, 1999
      NHTSA ID:
      #606523

      CONDITIONS WITH HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS, AND RUST IN THE COOLANT SYSTEM. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #030601024A

      Date Announced:
      MAR 01, 2004
      NHTSA ID:
      #10004301

      RATTLE NOISE IN ENGINE. *TT Read More »

    • TSB #01727

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10006363

      4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. *TT Read More »

    • 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 »

    • TSB #3081

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10010375

      SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. *TT 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 »

    FUEL SYSTEM, GASOLINE

    • TSB #PIP4723F

      Date Announced:
      JAN 14, 2022
      NHTSA ID:
      #10208027

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    • TSB #PIP4723C

      Date Announced:
      SEP 20, 2017
      NHTSA ID:
      #10157018

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    • TSB #05-06-04-035D

      Date Announced:
      MAY 09, 2014
      NHTSA ID:
      #10137901

      This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle. Read More »

    POWER TRAIN

    • TSB #010730002C

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10004354

      MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT Read More »

    • TSB #990730016A

      Date Announced:
      OCT 01, 2002
      NHTSA ID:
      #10007838

      DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #030730056

      Date Announced:
      NOV 01, 2003
      NHTSA ID:
      #10005566

      4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

    • TSB #020730024A

      Date Announced:
      AUG 01, 2005
      NHTSA ID:
      #634999

      DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT Read More »

    POWER TRAIN:DRIVELINE

    • TSB #3300

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10013572

      4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH Read More »

    ELECTRICAL SYSTEM

    • TSB #PIP4723D

      Date Announced:
      JAN 31, 2020
      NHTSA ID:
      #10171318

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    • TSB #3031A

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10009647

      DRIVER INFORMATION CENTER (DIC) STAYS IN BULB CHECK. *TT Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #PIP4723C

      Date Announced:
      SEP 20, 2017
      NHTSA ID:
      #10157018

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    • TSB #PIP4723B

      Date Announced:
      FEB 22, 2017
      NHTSA ID:
      #10113443

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    VISIBILITY:WINDSHIELD WIPER/WASHER

    • TSB #02054

      Date Announced:
      FEB 21, 2003
      NHTSA ID:
      #10002567

      WINDSHIELD WIPER FAILURE DUE TO CRACKED BOULDER JOINTS ON THE CONTROLLER CIRCUIT BOARD. THIS SPECIAL POLICY COVERS THE CONDITION FOR A PERIOD OF SEVEN YEARS OR 70,000 MILES, WHICHEVER OCCURS FIRST FROM THE DATE THE VEHICLE WAS ORIGINALLY ... Read More »

    VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR

    • TSB #02054

      Date Announced:
      FEB 01, 2003
      NHTSA ID:
      #10001125

      SPECIAL POLICY ADJUSTMENT - WINDSHIELD WIPER MOTOR FAILURES. *TT Read More »

    STRUCTURE

    • TSB #300800

      Date Announced:
      AUG 30, 2000
      NHTSA ID:
      #619027

      SUBJECT REGARDING THE NEW RECLINCER ASSEMBLY. *TT Read More »

    STRUCTURE:BODY:DOOR

    • TSB #020864007

      Date Announced:
      MAR 01, 2002
      NHTSA ID:
      #631292

      SOME CUSTOMERS MAY COMMENT THAT THE THIRD DOOR IS HARD TO OPEN AND/OR THE DOOR HANDLE MAY BE BROKEN FOR 1996-2002 CHEVROLET AND GMC S/T EXTENDED CAB PICKUP MODELS.. *SLC Read More »

    • TSB #250102

      Date Announced:
      JAN 25, 2002
      NHTSA ID:
      #629723

      CONCERNS WITH EXCESSIVE EFFORT OR BREAKING OF THE THIRD DOOR HANDLE ON EXTENDED CAB PICK UPS. *TT Read More »

    TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

    • TSB #PIP4723C

      Date Announced:
      SEP 20, 2017
      NHTSA ID:
      #10157018

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    SEATS

    • TSB #220801

      Date Announced:
      AUG 22, 2001
      NHTSA ID:
      #625141

      CUSTOMERS MAY COMMENT THAT THE SEAT RECLINER HANDLE IS STRIPPED. *JG Read More »

    EQUIPMENT

    • TSB #17NA073

      Date Announced:
      SEP 18, 2019
      NHTSA ID:
      #10166638

      This warranty administration bulletin provides information regarding the field action courtesy transportation policy. Read More »

    • TSB #PIC4696D

      Date Announced:
      SEP 05, 2019
      NHTSA ID:
      #10165876

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #17NA073

      Date Announced:
      FEB 15, 2019
      NHTSA ID:
      #10154641

      This warranty administration bulletin provides information regarding the field action courtesy transportation policy. Read More »

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIP4723C

      Date Announced:
      SEP 20, 2017
      NHTSA ID:
      #10157018

      This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester ... Read More »

    • TSB #PI0969

      Date Announced:
      MAY 03, 2013
      NHTSA ID:
      #10139019

      This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern. Read More »

    • TSB #041002

      Date Announced:
      APR 10, 2002
      NHTSA ID:
      #636523

      INFORMATION ON OVER TORQUING OR A REVERSE BEDRAIL INSTALLATION. *TT Read More »

    EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

    • TSB #PIC4696E

      Date Announced:
      NOV 22, 2019
      NHTSA ID:
      #10168979

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIC4696B

      Date Announced:
      DEC 04, 2015
      NHTSA ID:
      #10114947

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIC4696A

      Date Announced:
      OCT 23, 2015
      NHTSA ID:
      #10114924

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #PIC4696E

      Date Announced:
      NOV 22, 2019
      NHTSA ID:
      #10168979

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    • TSB #16NA260

      Date Announced:
      AUG 26, 2016
      NHTSA ID:
      #10082506

      THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO ... Read More »

    • TSB #PIC4696A

      Date Announced:
      OCT 23, 2015
      NHTSA ID:
      #10114924

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #17-NA-073

      Date Announced:
      FEB 21, 2023
      NHTSA ID:
      #10232287

      This warranty administration bulletin provides information regarding the field action courtesy transportation policy. Read More »

    • TSB #17-NA-073

      Date Announced:
      MAR 15, 2017
      NHTSA ID:
      #10138060

      This warranty administration bulletin provides policy information with the field action courtesy transportation policy. Read More »

    • TSB #Recalls

      Date Announced:
      JUN 30, 2014
      NHTSA ID:
      #10248444

      Vehicle Recalls Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #PIC4696C

      Date Announced:
      MAY 31, 2018
      NHTSA ID:
      #10141381

      This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #3176A

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10010270

      HEAT COMING FROM VENTS WITH HVAC OFF. *TT Read More »