Technical Service Bulletins (TSBs) for the 1998 LeSabre 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.

    STEERING

    • TSB #030236002

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10012577

      REVISED STEERING WHEEL POSITION SENSOR OR STEERING SHAFT LOWER BEARING REPLACEMENT PROCEDURE AND STEERING WHEEL POSITION SENSOR CENTERING PROCEDURE. *EH Read More »

    SUSPENSION

    • TSB #98833005

      Date Announced:
      OCT 01, 1998
      NHTSA ID:
      #602751

      SOME CUSTOMERS MAY COMMENT THAT THE VEHICLE 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 »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #040601021

      Date Announced:
      JUN 01, 2004
      NHTSA ID:
      #10012148

      NEW REAR MAIN SEAL AND SPECIAL TOOL FOR INSTALLATION. *TT Read More »

    • TSB #010601008A

      Date Announced:
      MAY 01, 2002
      NHTSA ID:
      #634813

      SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT Read More »

    • TSB #010601008

      Date Announced:
      FEB 01, 2001
      NHTSA ID:
      #619177

      SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #971201776530

      Date Announced:
      APR 29, 1998
      NHTSA ID:
      #600214

      COMMENTS THAT THE ENGINE RUNS ROUGH, HAS LACK OF POWER, HAS A KNOCK NOISE, AND/OR THE MIL (MALFUNCTION INDICATOR LIGHT) IS ILLUMINATED. *YC Read More »

    • TSB #98876514

      Date Announced:
      APR 01, 1998
      NHTSA ID:
      #601121

      CONDITION REGARDING THE ENGINE INTERMITTENTLY STALLS DURING A CLOSED THROTTLE DECELERATION FROM ABOUT 35 MPH. *YC Read More »

    • TSB #1000

      Date Announced:
      APR 01, 1998
      NHTSA ID:
      #601768

      INFORMATION ON HARMONIC TYPE NOISE FROM VEHICLE AT HIGHWAY SPEED. *YC 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 »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    • TSB #010601007

      Date Announced:
      SEP 01, 2007
      NHTSA ID:
      #619176

      ENGINE COOLANT CONSUMPTION OR COOLANT LEAK (INSPECT FOR MATERIAL DEGRADATION/REPLACE INTAKE MANIFOLDS) *TT UPDATED 11/02/07 *NJ Read More »

    • TSB #010601007A

      Date Announced:
      JUL 01, 2001
      NHTSA ID:
      #620835

      EXPERIENCING EXCESSIVE ENGINE COOLANT CONSUMPTION, OR AN ENGINE COOLANT LEAK NEAR OR UNDER THE THROTTLE BODY AREA OF THE UPPER INTAKE MANIFOLD. *TT Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

    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 #PI1217

      Date Announced:
      APR 15, 2014
      NHTSA ID:
      #10135203

      This preliminary bulletin provides a way to aid the technician in diagnosing transmission fluid leaking from the trans breather vent. Read More »

    • TSB #10003

      Date Announced:
      MAR 26, 1998
      NHTSA ID:
      #601770

      THIS BULLETIN MENTIONS THAT TECHNICIANS MAY ENCOUNTER SPS ERROR CODES WHEN ATTEMPTING TO REPROGRAM THE POWER TRAIN CONTROL MODULE. *TT Read More »

    POWER TRAIN:MANUAL TRANSMISSION

    • TSB #000730002B

      Date Announced:
      JUL 01, 2002
      NHTSA ID:
      #634985

      CONCERNS WITH SLIPS, HARSH UPSHIFT OR GARAGE SHIFTS, LAUNCH SHUDDERS, FLARES, ERRATIC SHIFTS AND INTERMITTENT CONCERNS, DIAGNOSTIC TROUBLE CODE P1811 OR P0748 SET. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #010730032B

      Date Announced:
      NOV 01, 2004
      NHTSA ID:
      #628928

      SOME OWNERS MAY COMMENT ON A TRANSMISSION OIL LEAK. *TT UPDATED *EH Read More »

    POWER TRAIN:AXLE ASSEMBLY

    • TSB #990730007

      Date Announced:
      MAY 01, 1999
      NHTSA ID:
      #607351

      VEHICLES WITH HYDRA-MATIC TRANSAXLE MAY EXHIBIT VEHICLE SHUDDER WHEN REAPPLYING THROTTLE (GREATER THAN 50%) AFTER STOPPING. *TT Read More »

    • TSB #10001

      Date Announced:
      APR 01, 1998
      NHTSA ID:
      #601769

      INFORMATION ON GROWLING NOISE IN TRANSAXLE DURING FIRST FOUR MINUTES AFTER START UP. *YC 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 #PIC5913

      Date Announced:
      SEP 19, 2013
      NHTSA ID:
      #10113258

      This Preliminary Information communication provides information to the technician about vehicles that have a Supplemental Inflatable Restraint lamp, Service Vehicle Soon lamp on and/or radio locked, possibly after module replacement. Read More »

    ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

    • TSB #03054

      Date Announced:
      MAY 17, 2004
      NHTSA ID:
      #10007859

      UPCOMING PRODUCT SAFETY RECALL FUEL PRESSURE REGULATOR. *MJ Read More »

    ELECTRICAL SYSTEM:WIRING

    • TSB #57

      Date Announced:
      JUL 01, 2003
      NHTSA ID:
      #10016464

      WIRE HARNESS MAY BE STRETCHED, OR THE PCS MAY NOT BE ORIENTED IN THE SAME POSITION, AFTER INSTALLING A SERVICE REPLACEMENT VALVE BODY ASSEMBLY. GM TECH LINK. *TT Read More »

    ELECTRICAL SYSTEM:IGNITION

    • TSB #98003

      Date Announced:
      FEB 01, 1998
      NHTSA ID:
      #600193

      INFORMATION ON SPARK PLUG TIP EROSION CALIBRATION PCM REFLASH. *YC Read More »

    ELECTRICAL SYSTEM:IGNITION:MODULE

    • TSB #990604037

      Date Announced:
      SEP 01, 1999
      NHTSA ID:
      #608390

      SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *MJS 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:POWER WINDOW DEVICES AND CONTROLS

    • TSB #98849602A

      Date Announced:
      OCT 01, 1998
      NHTSA ID:
      #602750

      SOME CUSTOMERS MAY COMMENT ON RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME. *YC Read More »

    • TSB #839607

      Date Announced:
      OCT 01, 1998
      NHTSA ID:
      #602985

      COMMENTS ON SWITCHING BETWEEN LOCAL STATIONS OR CROSS TALK IN METROPOLITAN AREAS WITH SEVERAL STRONG AM STATIONS. *YC Read More »

    • TSB #849602

      Date Announced:
      SEP 01, 1998
      NHTSA ID:
      #603828

      SOME CUSTOMERS MAY COMMENT THE RADIO CLOCK GAINS AN EXCESSIVE AMOUNT OF TIME. *YC Read More »

    • TSB #98839011

      Date Announced:
      MAY 01, 1998
      NHTSA ID:
      #601398

      SOME CUSTOMERS MAY COMMENT ABOUT ON A GAP BETWEEN THE PASSENGER SUPPLEMENTAL INFLATABLE RESTRAINT (PSIR) MODULE AND THE INSTRUMENT PANEL TRIM PLATE. *YC Read More »

    STRUCTURE:BODY:DOOR

    • TSB #990864007

      Date Announced:
      MAY 01, 1999
      NHTSA ID:
      #606010

      SOME CUSTOMERS MAY COMMENT THAT THE FRONT AND / OR REAR DOOR TRIM PANEL WILL COME LOOSE OR SEPARATES FROM THE TOP OF THE DOOR AT THE INNER SEALING STRIP. *TT Read More »

    VEHICLE SPEED CONTROL

    • TSB #050604058

      Date Announced:
      SEP 01, 2005
      NHTSA ID:
      #10017568

      INTERMITTENT CHUGGLE OR FISHBITE ON LIGHT ACCELERATION OR A HIGHWAY SPEEDS WITH NO DIAGNOSTIC TROUBLE CODES (DTCS). *TT Read More »

    • TSB #990604045

      Date Announced:
      OCT 01, 1999
      NHTSA ID:
      #6088955

      SUBJECT REGARDING LOW POWER / STUMBLE WHEN ACCELERATING IN TURNS OR STRAIGHT LINE. *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 »

    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 »

    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:LABELS

    • TSB #98068

      Date Announced:
      JUL 01, 1999
      NHTSA ID:
      #606063

      PRODUCT EMISSION CAMPAIGN REGARDING VEHICLES WITH AN INCORRECT VEHICLE EMISSION CONTROL LABEL. *TT Read More »

    • TSB #98068

      Date Announced:
      JUL 01, 1999
      NHTSA ID:
      #606218

      CERTAIN VEHICLES WERE BUILT WITH INCORRECT VEHICLE EMISSION CONTROL LABELS. THE EMISSION CONTROL (TUNE-UP) LABELS HAVE AN INCORRECT EMISSION VACUUM HOSE ROUTING SCHEMATIC. *TT Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • 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 #9810007

      Date Announced:
      MAR 24, 1998
      NHTSA ID:
      #601774

      INFORMATION ON A/C CONTROL HEAD DISPLAYS IN CELSIUS. *YC Read More »

    UNKNOWN OR OTHER

    • TSB #020730014A

      Date Announced:
      JUL 01, 2002
      NHTSA ID:
      #635006

      INFORMATION ON SERVICING 4T65-E TRANSAXLE SPACER PLATE AND GASKETS FOR VARIOUS MODELS FROM 1997 THROUGH 2002. *TT Read More »

    • TSB #020730014

      Date Announced:
      APR 01, 2002
      NHTSA ID:
      #634997

      INFORMATION ON SERVICING 4T65E TRANSAXLE SPACER PLATE AND GASKETS. *TT Read More »

    • TSB #32

      Date Announced:
      FEB 01, 2001
      NHTSA ID:
      #623615

      INFORMATION REGARDING EXTRA CLIPS IN THE 4T65E TRANSMISSION. *SLC Read More »