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Service bulletins for the 1998 Chevrolet Blazer

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

78 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
33492005-05-10. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). 4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN. *TT
33002005-04-21. Service bulletin. POWER TRAIN:DRIVELINE. 4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH
0406030022005-03-11. Service bulletin. ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
0408500172004-12-29. Service bulletin. SEATS:FRONT ASSEMBLY:POWER ADJUST. POWER SEAT INOPERATIVE FORE/AFT AFTER BEING MOVED ALL THE WAY REARWARD. *TT
31832004-12-15. Service bulletin. SUSPENSION:FRONT; POWER TRAIN:AXLE ASSEMBLY. FRONT AXLE GRIND WHINE NOISE IN 2WD GONE IN 4WD. *EH
3176A2004-11-09. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HEAT COMING FROM VENTS WITH HVAC OFF. *TT
31302004-11-04. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT CLUSTER PRNDL INOPERATIVE AND OR BATTERY LIGHT ON. *SC
3031A2004-10-14. Service bulletin. ELECTRICAL SYSTEM. DRIVER INFORMATION CENTER (DIC) STAYS IN BULB CHECK. *TT
3046A2004-09-27. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *TT
990730016A2004-07-13. Service bulletin. POWER TRAIN. DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT
015992004-06-04. Service bulletin. POWER TRAIN. 4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT
020152004-05-20. Service bulletin. SUSPENSION:FRONT. POP SNAP NOISE IN THE FRONT SUSPENSION WHEN BRAKING. *MR
017272004-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. *TT
020526001B2004-04-16. Service bulletin. PARKING BRAKE; SERVICE BRAKES, AIR. REAR PARKING BRAKE SHOE RETAINING SPRING CLIP SERVICE KIT FOR DRUM-IN-HAT (DIH) EQUIPPED VEHICLES. *TT UPDATE. *TT
0307300562004-03-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. *TT
0306010242003-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
030601024A2003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
01136C2003-11-22. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. CLUNK NOISE FELT THROUGH FLOOR PAN. *TT
0308670042003-09-30. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PARTS AVAILABILITY FOR SUNROOF REPAIRS. *TT
020421005A2003-04-15. Service bulletin. POWER TRAIN. SLIPS IN 4-WHEEL DRIVE, NOISE, VIBRATION, LEAKS, HOT ODOR. *TT
020525006A2003-03-28. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS ON VARIOUS MODELS INCLUDING THE 1995 AND 1996 ENVOY. *TT
0201380052003-03-28. Service bulletin. EQUIPMENT:ELECTRICAL. REVISED HEATER / VENT MODULE REPLACEMENT. *TT
0205250062003-02-11. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. ANTILOCK BRAKE (ABS) ACTIVATION AT LOW SPEEDS. *TT
020730024A2002-10-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
0204210052002-10-10. Service bulletin. POWER TRAIN. 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

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.