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Service bulletins for the 2004 Hummer H2

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.

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

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Bulletins, newest first
007022004-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SLIP CONDITION IN 2ND, 3RD OR 4TH DAMAGED 2-4 BAND 3-4 CLUTCH ON THE 4L60E/4L65E AUTOMATIC TRANSMISSION. *TT *MJ
015922004-02-27. Service bulletin. ELECTRICAL SYSTEM. 2003-2004 GENERATION 5 ONSTAR STEERING WHEEL CONTROL FUNCTION EXPLANATION. SIT BULLETIN 1416474. *TT
015552004-02-25. Service bulletin. SUSPENSION. D HEIGHT SPECIFICATION MISSING FROM SI. SIT BULLETIN 1410632. *TT
0300890452004-02-11. Service bulletin. UNKNOWN OR OTHER. CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF NOVEMBER 17, 2003 AND NOVEMBER 24, 2003. 2004 AND PRIOR PASSENGER CARS AND TRUCKS INCLUDED. *TT
0308440222004-02-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. PARTS RESTRICTION ON ORDERING XM DIGITAL RADIO RECEIVER. 2002-2004 CARS AND TRUCKS. *TT 2002-2006 PASSENGER CARS AND TRUCKS (INCLUDING SATURN). *TT
0300890472004-02-10. Service bulletin. UNKNOWN OR OTHER. CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF DECEMBER 1, 2003 AND DECEMBER 8, 2003. 2004 AND PRIOR PASSENGER CARS AND TRUCKS. *TT
020848001A2004-02-10. Service bulletin. STRUCTURE:BODY. URETHANE ADHESIVES FOR STATIONARY GLASS AND OTHER APPLICATIONS. 2004 AND PRIOR PASSENGER CARS AND TRUCKS AND 2004 AND PRIOR ISUZU TRUCKS. *TT
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
0908032004-01-28. Service bulletin. EQUIPMENT. DEALER INSTALLED OPTIONS AND AFTERMARKET ACCESSORIES INSTALLATION IMPROVEMENTS. GM VOICEMAIL LOG. *TT
0923032004-01-28. Service bulletin. SEAT BELTS:FRONT. FRONT PASSENGER SEATBELT ASSEMBLY REPLACEMENT. GM VOICEMAIL LOG. *TT
0926032004-01-28. Service bulletin. STEERING:LINKAGES:TIE ROD ASSEMBLY. WHEN REPLACING THE INNER TIE ROD IT IS NOT NECESSARY TO REPLACE THE ENTIRE STEERING LINKAGE RELAY ROD KIT. GM VOICEMAIL LOG. *TT
1008032004-01-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. IMPORTANT POINTS RELATIVE TO THE H2 NAVIGATION RADIO SYSTEM. GM VOICEMIAL LOG. *TT
030898002A2004-01-07. Service bulletin. STRUCTURE:BODY. SQUEEZE TYPE RESISTANCE SPOT WELDING/EQUIPMENT. *TT UPDATED *EH
030234001A2004-01-07. Service bulletin. STEERING:LINKAGES:TIE ROD ASSEMBLY. INNER TIE ROD RELEASED FOR SERVICE. *TT
0300890342004-01-07. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF OCTOBER 6, 2003 AND OCTOBER 13, 2003. 2004 AND PRIOR PASSENGER CARS AND TRUCKS AS WELL AS 2004 AND PRIOR HUMMER H2. *TT
0300890312004-01-07. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF SEPTEMBER 22, 2003 AND SEPTEMBER 29, 2003. 2004 AND PRIOR PASSENGER CARS AND TRUCKS AS WELL AS 2004 AND PRIOR HUMMER H2. *TT
030089006B2004-01-07. Service bulletin. UNKNOWN OR OTHER. NEW VEHICLE PRE-DELIVERY INSPECTION - GENERATING HIGHER CSI SCORES. 2003 - 2004 HUMMER H2 AND ALL 2003-2004 CARS AND TRUCKS. *TT UPDATED *EH
000310003F2004-01-06. Service bulletin. SUSPENSION. GM NEW VEHICLE TIRE WARRANTY PROGRAM. INCLUDING 1996 - 2004 PASSENGER CARS AND LIGHT DUTY TRUCKS AND 2003-2004 HUMMER H2. THIS BULLETIN REPLACED BULLETIN 00-03-10-003D DATED 01/2003. *TT THIS BULLETIN REPLACED BULLETIN 00-03-10-003F. *TT
0308510022004-01-05. Service bulletin. STRUCTURE:BODY. CHANGES TO PAINT CLAIM SUBMISSION PROCESS. *TT
0306040602004-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON NEW SPARK PLUGS AND GAPPING. VARIOUS MODELS INCLUDING PONTIAC GTO 2004. *TT
0308660112004-01-03. Service bulletin. TIRES:TEMPORARY/EMERGENCY SPARE TIRE. STINGER MAC ACCESSORIES (SMA) SPARE TIRE CARRIER MAY RATTLE OVER ROUGH SURFACES, T-PIN LOCK DIFFICULT TO REMOVE. *TT
990940005B2004-01-03. Service bulletin. SEAT BELTS:FRONT:ANCHORAGE. SEAT BELT EXTENDER AVAILABILITY. GM MODELS 2014 AND PRIOR GM CARS AND TRUCK. *TT
000235003C2004-01-02. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN THE STEERING WHEEL. *TT
014322003-12-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION POOR ACCELERATION, PERFORMANCE. *TT
014792003-12-05. Service bulletin. STRUCTURE:BODY. TUBULAR SIDE STEPS EXHIBIT CORROSION. SERVICE VME. *TT

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