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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By component
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Only bulletins with component: Equipment and accessories are shown. Show all
| 01958 | 2004-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. PRODUCT INFORMATION REGARDING RADIO PERSONALIZATION. *MR |
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| 01919 | 2004-05-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. REPLACEMENT RADIO READS CAL ERROR, HAS NO AUDIO OR WILL NOT PROGRAM. *TT |
| 01890 | 2004-05-14. Service bulletin. EQUIPMENT:MECHANICAL:CARRIER/RACK. ROOF RACK CROSS BAR RATTLE. *TT |
| 01864 | 2004-05-07. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. RADIO CD SKIPS/EJECTS OR CLOCK RESETS TO 12:00. *MR *TT |
| 01704 | 2004-05-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. PROGRAMMING CONTROL HEADS - HVAC AC. *TT |
| 01729 | 2004-04-30. Service bulletin. EQUIPMENT. ONSTAR WHITE DOT BUTTON VISUAL CHANGE BUILD SCHEDULE. SIT BULLETIN 1459145. *TT |
| 030848005A | 2004-03-04. Service bulletin. EQUIPMENT. COMPASS ZONE ADJUSTMENT AND CALIBRATION PROCEDURE DURING PRE-DELIVERY INSPECTION. VARIOUS MODELS INCLUDING 2002-2004 LIGHT DUTY TRUCKS. *TT UPDATE TO INCLUDE 2005 BUICK ALLURE. *TT |
| 030138019 | 2004-03-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. UNDERHOOD AIR CONDITIONER RATTLE NOISE HEARD ON ACCELERATION OR A SUDDEN LOSS OF AIR CONDITIONER SYSTEM PERFORMANCE. *TT THIS BULLETIN REPLACES 03-01-38-019 DATED 11-01-2003. TO INCLUDE VARIOUS MODLES INCLUDING 2002-2004 COMMERCIAL UPFITTER CHASSIS VEHICLES. *TT |
| 030844022 | 2004-02-11. 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 |
| 090803 | 2004-01-28. Service bulletin. EQUIPMENT. DEALER INSTALLED OPTIONS AND AFTERMARKET ACCESSORIES INSTALLATION IMPROVEMENTS. GM VOICEMAIL LOG. *TT |
| 100803 | 2004-01-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. IMPORTANT POINTS RELATIVE TO THE H2 NAVIGATION RADIO SYSTEM. GM VOICEMIAL LOG. *TT |
| 030852005 | 2003-12-03. Service bulletin. EQUIPMENT. DIAGNOSTIC INFORMATION FOR REPLACEMENT REMOTE KEYLESS ENTRY (RKE) TRANSMITTER INOPERATIVE - UNABLE TO SYNCHRONIZE. *TT |
| 030846004 | 2003-12-03. Service bulletin. EQUIPMENT. PROPER DIAGNOSIS OF ONSTAR SYSTEM AND INFORMATION NECESSARY WHEN CONTACTING GM TECHNICAL ASSISTANCE CENTER (TAC) REGARDING ONSTAR PARTS RESTRICTION PROGRAM CONCERNS ON VARIOUS MODELS INCLUDING 1996-2004 PASSENGER CARS AND TRUCKS. *TT |
| 030844018A | 2003-12-02. Service bulletin. EQUIPMENT. REAR SEAT AUDIO (RSA) AND/OR REAR HVAC INOPERATIVE. *TT UPDATE. *TT |
| 01456 | 2003-11-24. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THE NAV RADIO SYSTEM NOT AVAILABLE WITH CD CHANGER INFORMATION. SERVICE VME. *TT |
| 00843C | 2003-11-20. Service bulletin. EQUIPMENT. REPLACEMENT (RKE) TRANSMITTER IS INOPERATIVE - SERVICE VME. *TT |
| 082903 | 2003-11-06. Service bulletin. EQUIPMENT. INSTALLATION OF TAIL LAMP BRUSH GUARDS. VME MESSAGE. *TT |
| 062303 | 2003-10-29. Service bulletin. EQUIPMENT:ELECTRICAL. OFF ROAD STOP LAMP PACKAGE - A REVISED HARNESS TO BE SHIPPED. *TT |
| 030139008 | 2003-09-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CHANGES IN AIR CONDITIONING COMPESSOR ON/OFF INSTRUMENT PANEL DISPLAY SYMBOL FROM 2003 TO 2004 MODEL YEAR AND SYNCHRONIZING THE DRIVER AND PASSENGER SET TEMPERATURES. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.