Technical Service Bulletins (TSBs) for the 1999 Safari 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.

    STEERING:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #020232005A

      Date Announced:
      APR 01, 2002
      NHTSA ID:
      #634915

      SUBJECT REGARDING EXCESSIVE NOISE FROM POWER STEERING SYSTEM WHILE TURNING OR UNDER LIGHT BRAKING. *TT Read More »

    SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY

    • TSB #02115

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007457

      PART NUMBER 15042486 LEAF SPRING DAMPER MENTIONED IN TECHNICAL SERVICE BULLETIN (TSB) 00-03-09-001A IS NOT AVAILABLE. *MJ Read More »

    SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY

    • TSB #02097

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007458

      PART NUMBER 15042486 PER BULLETIN 00-03-09-001A FOR THE REAR SPRING DAMPER KIT IS CURRENTLY NOT AVAILABLE. *MJ Read More »

    SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

    • TSB #PIT-3665-D

      Date Announced:
      MAY 11, 2016
      NHTSA ID:
      #10078876

      THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE HYDRO-BOOST IS NOT SERVICEABLE AND WILL NEED TO BE REPLACED IF THE BRAKE PEDAL MOVES OR APPLIES ON ITS OWN AT A FULL TURN. Read More »

    • TSB #PIT-3665-A

      Date Announced:
      NOV 01, 2010
      NHTSA ID:
      #10028790

      GENERAL MOTORS: ON ALL 1988-2009 FULL SIZE CHEVROLET/GMC PICKUPS, UTILITIES AND VANS, THE BRAKE PEDAL WILL MOVE DOWN OR SELF APPLY DURING FULL LOCK TURNS OR NEAR FULL LOCK TURNS. CHEVROLET ASTRO AND GMC SAFARI VANS; HUMMER 2 ARE INCLUDED. Read More »

    SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS

    • TSB #301000

      Date Announced:
      OCT 30, 2000
      NHTSA ID:
      #616434

      THIS SERVICE VME MESSAGE ADDRESSES CUSTOMER COMMENTS OF EXCESSIVE BRAKE SQUEAL ON VEHICLES BUILT AFTER OCTOBER 11, 2000. *TT Read More »

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

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

    • TSB #3521

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10016711

      ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. Read More »

    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 »

    SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT

    • TSB #3521

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10016711

      ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #000605001

      Date Announced:
      JUN 01, 2004
      NHTSA ID:
      #10012145

      BOOM TYPE NOISE DURING ENGINE WARM UP. THIS SERVICE BULLETIN REPLACES 000605001A. *EH Read More »

    • TSB #01225

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

      ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ 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 #030601024

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10004371

      RATTLE NOISE IN ENGINE. *TT 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:GASOLINE

    • TSB #000605001A

      Date Announced:
      NOV 01, 2003
      NHTSA ID:
      #10005528

      CONCERNS WITH BOOM TYPE NOISE DURING ENGINE WARM-UP HEARD IN THE VEHICLE PASSENGER COMPARTMENT. *TT Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #311001

      Date Announced:
      OCT 31, 2001
      NHTSA ID:
      #628070

      SOME VEHICLES MAY EXHIBIT AN EXHAUST NOISE, RATTLE NOISE AT 550 RPM. *TT Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

    • TSB #161001

      Date Announced:
      OCT 16, 2001
      NHTSA ID:
      #627998

      BRIEF INFORMATION ON VEHICLES EXHIBITING DIAGNOSTIC TROUBLE CODE P0420 CATALYST SYSTEM LOW EFFICIENCY BANK ONE. *TT Read More »

    FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM

    • TSB #PIT-3046E

      Date Announced:
      AUG 01, 2008
      NHTSA ID:
      #10026704

      GMC: FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL, CAUSING THE LOW FUEL LIGHT TO ILLUMINATE. *PE Read More »

    • TSB #3046A

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10009382

      FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *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 #02086

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007782

      4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *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 #3002

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10008802

      4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT Read More »

    • TSB #00773

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10017190

      4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #010730038B

      Date Announced:
      OCT 01, 2005
      NHTSA ID:
      #10005162

      THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT Read More »

    • TSB #030730056

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

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

    • TSB #010730038

      Date Announced:
      DEC 01, 2001
      NHTSA ID:
      #628934

      SOME CUSTOMERS MAY COMMENT THAT THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. 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 #291100

      Date Announced:
      NOV 29, 2000
      NHTSA ID:
      #616395

      SOME VEHICLES MAY EXHIBIT A LOW SPEED SHUTTER OR VIBRATION DURING TIGHT LEFT OR RIGHT TURNS LIKE YOU'D MAKE IN A PARKING LOT AT SPEEDS OF UP TO FIVE MILES PER HOUR ON DRY PAVEMENT. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

    • TSB #PIP5340A

      Date Announced:
      FEB 17, 2016
      NHTSA ID:
      #10096073

      THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT AFTER A TRANSMISSION OR TORQUE CONVERTER REPLACEMENT THE VEHICLE MAY HAVE A HARSH 1-2 UPSHIFT AND THE CHECK ENGINE LIGHT OR SERVICE ... Read More »

    POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

    • TSB #990421005

      Date Announced:
      DEC 01, 2005
      NHTSA ID:
      #10000081

      TRANSFER CASE SHUDDER. *TT Read More »

    • TSB #01409

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004212

      THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASE SHUDDER ON TURNS. *TT Read More »

    • TSB #3012B

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10008806

      THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASES OPERATING IN THE AUTO MODE MAY EXHIBIT A CONDITION OF A VIBRATION/SHUDDER DURING LOW SPEED TURNS SUCH AS A PARKING LOT MANEUVER, UP TO ... Read More »

    ELECTRICAL SYSTEM

    • TSB #02136

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007811

      INTERMITTENT BATTERY LIGHT COMES ON, INTERMITTENT NO CRANK. *TT Read More »

    • TSB #3031A

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

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

    • TSB #3359

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10013530

      INTERIOR LIGHTS INOPERATIVE AFTER BCM REPLACEMENT B2618 DIAGNOSTIC TROUBLE CODE. *TT Read More »

    VISIBILITY

    • TSB #01667

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007244

      WINDOW REGULATOR MOTOR DOES NOT FIT. *TT Read More »

    VISIBILITY:WINDSHIELD

    • TSB #270901

      Date Announced:
      SEP 27, 2001
      NHTSA ID:
      #626527

      CUSTOMERS MAY COMPLAIN OF WHAT APPEARS TO BE A WATER LEAK IN THE WINDSHIELD AREA. *JG Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    • TSB #020201

      Date Announced:
      FEB 02, 2001
      NHTSA ID:
      #618269

      THIS MESSAGE CONCERNS 1996 THROUGH 2000 M & L VANS, CHEVROLET ASTRO AND GMC SAFARI THAT MAY EXHIBIT A LACK OF HEAT AT THE DRIVER'S SEAT. *TT Read More »

    SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

    • TSB #01036

      Date Announced:
      AUG 29, 2001
      NHTSA ID:
      #620862

      SUBJECT REGARDING FASTEN SEAT BELT WARNING AUDIBLE SIGNAL - PARTS INFORMATION UPDATE. *TT Read More »

    • TSB #01036

      Date Announced:
      AUG 01, 2001
      NHTSA ID:
      #620840

      SUBJECT REGARDING CAMPAIGN 01036 - FASTEN SEAT BELT WARNING AUDIBLE SIGNAL - PARTS INFORMATION UPDATE. *TT Read More »

    • TSB #01123

      Date Announced:
      JUN 22, 2001
      NHTSA ID:
      #623397

      CAMPAIGN PARTS BULLETIN REGARDING FASTEN SEAT BELT WARNING AUDIBLE SIGNAL. *TT Read More »

    • TSB #01036

      Date Announced:
      JUN 20, 2001
      NHTSA ID:
      #623443

      THIS BULLETIN STATES THAT GENERAL MOTORS HAS DECIDED THAT CERTAIN VEHICLES FAIL TO CONFIRM TO FEDERAL/CANADA MOTOR VEHICLE SAFETY STANDARD 208, OCCUPANT CRASH PROTECTION, 208, OCCUPANT RESTRAIN SYSTEM IN FRONTAL IMPACT, AND ARTICLE 22-3, ... Read More »

    • TSB #01036

      Date Announced:
      JAN 01, 2001
      NHTSA ID:
      #623540

      INFORMATION REGARDING FASTEN SEAT BELT WARNING AUDIBLE SIGNAL PARTS AVAILABILITY. *SLC Read More »

    STRUCTURE:BODY

    • TSB #131000

      Date Announced:
      OCT 13, 2000
      NHTSA ID:
      #617676

      THIS BULLETIN ADDRESSES CUSTOMER COMPLAINTS OF A POPPING OR SNAPPING SOUND FROM THE RIGHT FRONT DOOR WINDOW AREA ON 1999 THROUGH 2000 MODEL YEAR ASTRO AND SAFARI VANS. *TT Read More »

    STRUCTURE:BODY:DOOR

    • TSB #020864013

      Date Announced:
      MAY 01, 2002
      NHTSA ID:
      #634576

      SOME CUSTOMERS MAY COMMENT THAT THE RIGHT REAR DOOR HANDLE ON THE CARGO DOOR BREAKS. *TT Read More »

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

    • 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 »