Technical Service Bulletins (TSBs) for the 1998 Yukon 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.

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

    • TSB #3340

      Date Announced:
      SEP 23, 2006
      NHTSA ID:
      #10020874

      LEFT FRONT AXLE SHAFT DIFFICULT TO REMOVE. AXLE DIFFERENTIAL LEAK SEAL SHAFT. *KB Read More »

    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: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 #040604088

      Date Announced:
      MAR 01, 2005
      NHTSA ID:
      #10014959

      REPLACEMENT OF CONNECTOR WHEN REPLACING FUEL TANK MODULE/FUEL PUMP MODULE. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    • 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 »

    FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM

    • TSB #01349A

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004135

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

    POWER TRAIN

    • TSB #01599

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007237

      4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT Read More »

    • TSB #01410

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004214

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

    • 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 #020421005A

      Date Announced:
      FEB 01, 2003
      NHTSA ID:
      #10001110

      SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR. *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 »

    • TSB #020421005

      Date Announced:
      JUN 01, 2002
      NHTSA ID:
      #634905

      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 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 »

    • TSB #660421002

      Date Announced:
      APR 01, 1999
      NHTSA ID:
      #606576

      CUSTOMER MAY COMPLAIN THAT THE 4WD IS INOPERATIVE. *TT Read More »

    POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

    • TSB #3349

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10014809

      4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN. *TT Read More »

    • TSB #3389

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10016707

      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. 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 #19NA273

      Date Announced:
      DEC 02, 2019
      NHTSA ID:
      #10170494

      This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock. Read More »

    • TSB #00149D

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10005439

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

    • TSB #00149C

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004223

      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 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 »

    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 »

    EQUIPMENT

    • TSB #19NA273

      Date Announced:
      DEC 02, 2019
      NHTSA ID:
      #10170494

      This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock. Read More »

    • 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 #00-00-89-027G

      Date Announced:
      NOV 28, 2012
      NHTSA ID:
      #10137475

      This informational bulletin provides a step by step procedure on how to properly use the GM chemicals to eliminate unwanted odors in vehicles and which products to use for each application. 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 »

    • TSB #00-00-89-027G

      Date Announced:
      NOV 28, 2012
      NHTSA ID:
      #10138217

      This informational bulletin provides a step by step procedure on how to properly use the GM chemicals to eliminate unwanted odors in vehicles and which products to use for each application. Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #3005

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10008883

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

    UNKNOWN OR OTHER

    • TSB #010856004A

      Date Announced:
      SEP 01, 2001
      NHTSA ID:
      #627635

      INFORMATION REGARDING SECURITY LAMP ILLUMINATION ON THE INSTUMENT PANEL, ENGINE STALLS. *YH Read More »

    • TSB #010856004

      Date Announced:
      AUG 01, 2001
      NHTSA ID:
      #625163

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