Please note: The TSB information displayed below are summaries. We do not have access to the full versions. To get full information about a particular TSB, write down the TSB title & date, & either contact your local dealer or click on the links below.

The TSB numbers are the NHTSA numbers, which are different from the manufacturer-assigned TSB numbers — the NHTSA doesn't keep track of those. It's a very screwed up situation that's almost completely unhelpful to you as the consumer. Use the issue date or the title when asking your dealer for more information about a TSB.

    STEERING

    • TSB #030236002

      NHTSA ID #10012577

      • Date Announced: AUGUST 01 2003
      • Additional Info: How to Fix

      Summary: REVISED STEERING WHEEL POSITION SENSOR OR STEERING SHAFT LOWER BEARING REPLACEMENT PROCEDURE AND STEERING WHEEL POSITION SENSOR CENTERING PROCEDURE. *EH

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    SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE

    • TSB #3340

      NHTSA ID #10020874

      • Date Announced: SEPTEMBER 23 2006
      • Additional Info: How to Fix

      Summary: LEFT FRONT AXLE SHAFT DIFFICULT TO REMOVE. AXLE DIFFERENTIAL LEAK SEAL SHAFT. *KB

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    SERVICE BRAKES, HYDRAULIC:ANTILOCK

    • TSB #020525006

      NHTSA ID #10000062

      • Date Announced: JANUARY 01 2006
      • Additional Info: How to Fix

      Summary: ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS. *TT

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    SERVICE BRAKES, AIR:ANTILOCK

    • TSB #020525006A

      NHTSA ID #10000749

      • Date Announced: DECEMBER 01 2002
      • Additional Info: How to Fix

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

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    ENGINE AND ENGINE COOLING

    • TSB #PI0969

      NHTSA ID #10139019

      • Date Announced: MAY 03 2013
      • Additional Info: How to Fix

      Summary: This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern.

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    • TSB #040604088

      NHTSA ID #10014959

      • Date Announced: MARCH 01 2005
      • Additional Info: How to Fix

      Summary: REPLACEMENT OF CONNECTOR WHEN REPLACING FUEL TANK MODULE/FUEL PUMP MODULE. *TT

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    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #3081

      NHTSA ID #10010375

      • Date Announced: no date provided
      • Additional Info: How to Fix

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

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    FUEL SYSTEM, GASOLINE

    • TSB #05-06-04-035D

      NHTSA ID #10137901

      • Date Announced: MAY 09 2014
      • Additional Info: How to Fix

      Summary: This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

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    FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM

    • TSB #01349A

      NHTSA ID #10004135

      • Date Announced: NOVEMBER 18 2003
      • Additional Info: How to Fix

      Summary: 6.5L L49 L56 L57 L65 DIESEL ENGINE REQUIRING FUEL INJECTION PUMP REPLACEMENT. MODELS P32/P42 1994-1999 INCLUDED. *TT

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    POWER TRAIN

    • TSB #01599

      NHTSA ID #10007237

      • Date Announced: JANUARY 01 2004
      • Additional Info: How to Fix

      Summary: 4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT

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    • TSB #01410

      NHTSA ID #10004214

      • Date Announced: NOVEMBER 18 2003
      • Additional Info: How to Fix

      Summary: POOR PERFORMANCE FROM A STOP IN 2WD, AUTO OR 4WD HI. 2003, 2003 CADILLAC EXT ALSO INCLUDED. *TT

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    • TSB #020421005A

      NHTSA ID #10001110

      • Date Announced: FEBRUARY 01 2003
      • Additional Info: How to Fix

      Summary: SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR. *TT

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    • TSB #990730016A

      NHTSA ID #10007838

      • Date Announced: OCTOBER 01 2002
      • Additional Info: How to Fix

      Summary: DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT

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    • TSB #020421005

      NHTSA ID #634905

      • Date Announced: JUNE 01 2002
      • Additional Info: How to Fix

      Summary: SOME VEHICLES WILL NOT MOVE WHEN 4-WHEEL DRIVE IS REQUESTED, NOISE, SHUDDER, POOR PERFORMANCE, TRANSMISSION / TRANSFER CASE SLIPS, TRANSMISSION WILL NOT UPSHIFT, SLIPS IN 4-WHEEL DRIVE. *TT

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

    • TSB #660421002

      NHTSA ID #606576

      • Date Announced: APRIL 01 1999
      • Additional Info: How to Fix

      Summary: CUSTOMER MAY COMPLAIN THAT THE 4WD IS INOPERATIVE. *TT

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    POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

    • TSB #3389

      NHTSA ID #10016707

      • Date Announced: no date provided
      • Additional Info: How to Fix

      Summary: FOUR WHEEL DRIVE INOPERATIVE AND THE 4WD SERVICE LIGHT WILL ILLUMINATE. DIAGNOSIS MAY REVEAL THAT THE ATC FUSE COULD BE OPEN, POSSIBLE DTC C0308, OR VARIOUS U CODES MAY BE SET. THE ENCODER MOTOR MAY ALSO BE SHORTED OR THE TCCM MAY BE DAMA

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    • TSB #3349

      NHTSA ID #10014809

      • Date Announced: no date provided
      • Additional Info: How to Fix

      Summary: 4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN. *TT

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    POWER TRAIN:DRIVELINE

    • TSB #3300

      NHTSA ID #10013572

      • Date Announced: no date provided
      • Additional Info: How to Fix

      Summary: 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH

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    ELECTRICAL SYSTEM

    • TSB #00149D

      NHTSA ID #10005439

      • Date Announced: JANUARY 01 2004
      • Additional Info: How to Fix

      Summary: MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING 1996 - 1999 P32 MODELS. SIT BULLETIN 1416475. *TT

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    • TSB #00149C

      NHTSA ID #10004223

      • Date Announced: NOVEMBER 18 2003
      • Additional Info: How to Fix

      Summary: MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING THE 1996-1999 P32 AND THE 1996-2002 GMC C/K TRUCK. *TT

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    ELECTRICAL SYSTEM: SOFTWARE

    • TSB #PIP4723B

      NHTSA ID #10113443

      • Date Announced: FEBRUARY 22 2017
      • Additional Info: How to Fix

      Summary: 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 and

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    SEAT BELTS

    • TSB #PIC4696C

      NHTSA ID #10141381

      • Date Announced: MAY 31 2018
      • Additional Info: How to Fix

      Summary: 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. Technician will need to contact the radio unlock ce

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    EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES

    • TSB #PIC4696B

      NHTSA ID #10114947

      • Date Announced: DECEMBER 04 2015
      • Additional Info: How to Fix

      Summary: 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. Technician will need to contact the radio unlock ce

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    • TSB #PIC4696A

      NHTSA ID #10114924

      • Date Announced: OCTOBER 23 2015
      • Additional Info: How to Fix

      Summary: 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. Technician will need to contact the radio unlock ce

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

    • TSB #16NA260

      NHTSA ID #10082506

      • Date Announced: AUGUST 26 2016
      • Additional Info: How to Fix

      Summary: 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 CALIBR

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    • TSB #PIC4696A

      NHTSA ID #10114924

      • Date Announced: OCTOBER 23 2015
      • Additional Info: How to Fix

      Summary: 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. Technician will need to contact the radio unlock ce

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    EQUIPMENT:AIR CONDITIONER

    • TSB #3005

      NHTSA ID #10008883

      • Date Announced: JANUARY 01 2004
      • Additional Info: How to Fix

      Summary: 93-00 FULL SIZE UTILITIES (GMT 400 OLD STYLE ONLY) AC BLOWS WARM AND THE HIGH SIDE PRESSURE IS TOO HIGH. *MJ

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    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #17-NA-073

      NHTSA ID #10138060

      • Date Announced: MARCH 15 2017
      • Additional Info: How to Fix

      Summary: This warranty administration bulletin provides policy information with the field action courtesy transportation policy.

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    UNKNOWN OR OTHER

    • TSB #010856004A

      NHTSA ID #627635

      • Date Announced: SEPTEMBER 01 2001
      • Additional Info: How to Fix

      Summary: INFORMATION REGARDING SECURITY LAMP ILLUMINATION ON THE INSTUMENT PANEL, ENGINE STALLS. *YH

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    • TSB #010856004

      NHTSA ID #625163

      • Date Announced: AUGUST 01 2001
      • Additional Info: How to Fix

      Summary: INFORMATION REGARDING SECURITY LAMP ILLUMINATING ON THE INSTRUMENT PANEL, ENGINE STALL, NO START, AND DIAGNOSIC TROUBLE CODE B2960. *SLC

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