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Service bulletins for the 2004 Chevrolet Avalanche

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.

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

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Bulletins, newest first
30132004-08-23. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); EQUIPMENT:ELECTRICAL. UNWANTED STABILITRAK ACTIVATION OR STABILITRAK DISABLE MESSAGE APPEARS ON THE DIC. *TT
15300762004-08-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VEHICLES AND HUMMER H2 WITH A HIGH ALTITUDE STALL. *MJ
0408500072004-08-17. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. SERVICE INFORMATION FOR FRONT HEATED SEAT INOPERATIVE/COLD. *MJ
040525002B2004-08-13. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. ANTI-LOCK BRAKE SYSTEM (ABS) LIGHT ON, DIAGNOSTIC TROUBLE CODES (DTCS) C0265, C0201, U1041 SET AND/OR LOSS OF COMMUNICATION WITH BRAKE MODULE. *TT UPDATE. *TT
0404950012004-08-12. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. REVISED WHEEL DRIVE SHAFT NUT TORQUE SPECIFICATION. *TT
0308640102004-08-03. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRRORS MAY BLOW IN AT HIGHWAY SPEEDS OR POWER FOLDING FEATURE APPEARS INOPERATIVE. ALSO TO INCLUDE 2005 MODELS. *TT
04081110022004-08-03. Service bulletin. STRUCTURE:BODY. RAISED SURFACE, DIMPLE IN BODY SIDE MOLDING. *MJ THIS BULLETIN REPLACED PREVIOUS BULLETIN 04-08-111-002, DATED 05/01/2004. *TT
00823A2004-07-19. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. POWER STEERING FLUID LEAKING AT HYDRAULIC BRAKE BOOSTER. *TT
013532004-07-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE DUE TO INJECTOR FRETTING CORROSION. *TT
019362004-07-12. Service bulletin. STRUCTURE:BODY. PAINTED BODY SIDE MOLDINGS DIMPLE (RAISED SURFACE). SERVICE VME. *TT
009932004-07-12. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRROR GLASS MAY CRACK. *TT
020542004-07-09. Service bulletin. ENGINE AND ENGINE COOLING. ELIMINATION OF LOW COOLANT MESSAGE FROM DIC. SERVICE VME. *TT
020522004-07-09. Service bulletin. STRUCTURE. NOISE COMING FROM INSTRUMENT PANEL CLUSTER OR TACHOMETER. *TT
007862004-07-08. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. BUZZ NOISE AND VIRBATION IN THE ACCELERATOR PEDAL AT APPROX. 10 MPH ON START UP. *MJ
015862004-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 8.1L CHANGES IN HEADS, BOLTS AND GASKET FOR FOR 2004 1/2 ENGINES. VARIOUS MODELS INCLUDING THE CHEVROLET AND GMC 2500HD/3500 MY2001-2004 AND 2001, 2002, AND 2003 GMT 560. *MJ
01267F2004-07-06. Service bulletin. ELECTRICAL SYSTEM. SERVICE 4WD LIGHT ON NO CODES BESIDES U1000 CODES OR C0550. *MJ
005732004-07-06. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. LOW AUDIO OUTPUT FROM SPEAKERS. *MJ
019542004-07-03. Service bulletin. UNKNOWN OR OTHER. UNWANTED STABILITRAK ACTIVATION DURING SWEEPING TURNS. *TT
002662004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOSS OF POWER, HESITATES ON ACCELERATION ON 4.8, 5.3 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E TRANSMISSION. *TT
019722004-07-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ERRATIC OIL PRESSURE GMT 610 OR GMT800 WITH CODES P0522 OR P0523. *TT 01972A REPLACED AND UPDATED 01/01/04. *SC
008442004-06-29. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. FRONT WINDSHIELD WIPER ARM DOES NOT REMAIN UPRIGHT POSITION AS IT DID ON PRIOR MODELS AND AS A RESULT, CUSTOMER MAY INADVERTENTLY BRAKE THE WIPER ARM TRYING TO EXTEND THE BLADE. *MJ
01448A2004-06-09. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. WATER LEAKING FROM CENTER ROOF CONSOLE. *TT
00372D2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL. ONSTAR SYSTEM IS ATTEMPTING AND/OR COMPLETING PHONE CALLS WHICH THE OPERATOR OF THE VEHICLE DID NOT INITIATE. *TT
01913A2004-06-09. Service bulletin. EQUIPMENT. CARGO COVERS- CLADDING STAINED OR DISCOLORED. *TT
01588A2004-06-09. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. FUEL CAP TETHER STRAP TOO SHORT. *TT

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