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Service bulletins for the 2001 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.

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

By type

By component

By trouble code

Bulletins, newest first
020382004-05-20. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE B1000. *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
00822B2004-02-28. Service bulletin. POWER TRAIN. NO 2ND, NO 4TH AND NO REVERSE. TO INCLUDE 2004 LIGHT DUTY AUTOMOBILES AND TRUCKS EQUIPPED WITH 4L60E OR 4L65E AUTOMATIC TRANSMISSION. *TT
015322004-02-27. Service bulletin. FUEL SYSTEM, OTHER. SUPPLEMENT TO BULLETIN 03-08-49-014A FUEL GAUGE FLUCTUATES BETWEEN E AND TANK GOES FROM TO EMPTY TOO QUICKLY. SIT BULLETIN 1408531. *TT
01582A2004-02-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC MODE SWITCH IS INOPERATIVE OR IS STUCK IN VENT MODE. *MN
010730038B2004-02-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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
030849014A2004-01-03. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATES BETWEEN E AND 1/4 TANK, GOES FROM 1/4 TO EMPTY TOO QUICKLY, EXCESSIVE EMPTY FUEL RESERVE. *TT
990421003C2003-12-05. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. FRONT WHEELS SLIPPING WITH VEHICLE IN FOUR WHEEL DRIVE. *TT
0306040412003-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET. *TT
0306010242003-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
0308480142003-12-03. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATES BETWEEN E AND 1/4 TANK, GOES FROM 1/4 TO EMPTY TOO QUICKLY, EXCESSIVE EMPTY FUEL RESERVE. *TT
030601024A2003-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. *TT
014092003-11-22. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASE SHUDDER ON TURNS. *TT
01136C2003-11-22. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. CLUNK NOISE FELT THROUGH FLOOR PAN. *TT
01273B2003-11-20. Service bulletin. SUSPENSION. VIBRATION AT HIGHWAY SPEEDS. *TT
0624032003-10-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HEATING VENTILATION AND AIR CONDITIONING INOPERATIVE OR STUCK IN ANY MODE. DIAGNOSIS. *TT
0308670042003-09-30. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. PARTS AVAILABILITY FOR SUNROOF REPAIRS. *TT
0308490082003-09-29. Service bulletin. EQUIPMENT:ELECTRICAL. ERRATIC OR INACCURATE COMPASS OPERATION WITH USE OF POWER MOON ROOF. *TT UPDATE. *TT
0301380092003-09-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC MODE SWITCH INOPERATIVE OR STUCK IN VENT MODE, OIL IN HVAC CONTROL HEAD AND/OR VACUUM LINES. *TT
0308680012003-08-27. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. REVISED CRUISE CONTROL INOPERATIVE / MALFUNCTIONING DIAGNOSTIC INFORMATION. *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

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