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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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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
0008460032005-11-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). GLOBAL POSITION SENSOR (GPS) PERFORMANCE DEGRADATION. 1996 - 2005 PASSENGER CARS AND TRUCKS. 2002 - 2005 SATURN VEHICLES. *TT
7022005-09-10. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. NAVIGATION RADIO HUM. THIS APPLIES TO 2003-05 CHEVROLET/GMC/CADILLAC/HUMMER H2 FULL SIZE UTILITIES. GM TECH LINKS. *TT
7022005-09-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION RADIO SYSTEM DOES NOT HAVE COMPLETE COVERAGE. GM TECH LINKS. *TT
6092005-09-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. A/C LOW PRESSURE SWITCH DIAGNOSIS. *SC
050846006A2005-05-14. Service bulletin. EQUIPMENT. INFORMATION ON UPGRADING CERTAIN ONSTAR GENERATION 5 ANALOG/DIGITAL-READY SYSTEMS TO ONSTAR GENERATION 6 DUAL-MODE (ANALOG/DIGITAL). *TT
0508460052005-05-14. Service bulletin. EQUIPMENT. ONSTAR LABOR OPERATION CODES. 1996-2005 GM PASSENGER CARS AND TRUCKS AND SATURN VEHICLES. *TT
0508460042005-05-14. Service bulletin. EQUIPMENT. ONSTAR PHONE NUMBER CONCERNS (PHONE NUMBER INCORRECT/ASSIGNED TO ANOTHER VEHICLE/PHONE) THAT OCCUR DURING DIAGNOSIS OF ONSTAR SYSTEM. 2000-2005 GM PASSENGER CARS AND TRUCKS AND 2003-2005 SATURN VEHICLES WITH ONSTAR. *TT
070120042005-04-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OIL LIFE SYSTEM RESET PROCEDURES-TRUCKS. BUICK TERAZZA 2005, GMC SIERRA DENALI 2002-2003, GMC B7 CHASSIS MEDIUM DUTY 2003-2005 AND GMC 560 C-SERIES 2003-2005 *SC
0508440012005-04-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. COMPACT DISC OR DVD PLAYER SKIPPING INOPERATIVE SLUGGISH AND OR LONG SEARCH TIMES. THIS INCLUDES 2005 AND PRIOR GM PASSENGER CARS TRUCKS AND SATURN MODELS.*EH
0406010342005-04-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. INSTRUCTIONS TO BE FOLLOWED TO AID IN OBTAINING ROOT CAUSE ANALYSIS ON BOTH OEM AND GOODWRENCH ENGINES TRANSMISSIONS AND TRANSFER CASES. THIS INCLUDES 2005 AND PRIOR GM PASSENGER CARS AND TRUCKS. *EH
050220042005-04-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OPTION B2E VICTORY RED PACKAGE. *EH
070820042005-04-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. GM SERVICE TECHNICAL COLLEGE. *EH
030920042005-04-06. Service bulletin. EQUIPMENT:MECHANICAL:CARRIER/RACK. ROOF RACK RATTLE. *TT
010844005A2005-03-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. INFORMATION ON ERROR CODES ON RADIO DISPLAY THEIR CAUSE AND CORRECTIVE ACTION. *EH
8396052005-03-12. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. RADIO TELEPHONE/MOBILE RADIO (TRANSCEIVER) INSTALLATION AND TROUBLESHOOTING GUIDELINES. 1990-2005 PASSENGER CARS AND TRUCKS. ORIGINAL NOT YET RECEIVED. *TT
0401380152005-03-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIAGNOSTIC INFORMATION FOR MOAN GROAN OR BOOM NOISE AT IDLE VIBRATION IN STEERING WHEEL OR FELT THROUGH FLOOR WHEN AC COMPRESSOR ENGAGES DO NOT REPLACE AC COMPRESSOR. *EH
0401380142005-03-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HIGH PITCHED TONE HEARD INSIDE VEHICLE WHEN AC COMPRESSOR IS ENGAGED. *EH
0401380132005-03-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC NOT COLD ENOUGH A/C COMPRESSOR DOES NOT ENGAGE . *EH
030089008A2005-03-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. CORROSION PROTECTION FOR DEALER INSTALLED ACCESSORIES FASTENED TO METAL PANELS. THIS INCLUDES 2004 AND PRIOR PASSENGER CARS AND TRUCKS. THIS SERVICE BULLETIN REPLACES 030089008. *EH
0300890212005-03-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. NEW VEHICLE PRE DELIVERY INSPECTION PERCEIVED FUEL ECONOMY AND DRIVER INFORMATION CENTER SETTINGS. *EH
0300890192005-03-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FIELD PRODUCT REMINDER CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES AND BULLETINS RELEASED WEEKS OF JULY 7 2003 AND JULY 14 2003. *EH
0300890172005-03-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FIELD PRODUCT REMINDER CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES AND BULLETINS RELEASED WEEKS OF JUNE 16 2003 AND JUNE 23 2003. *EH
990138006A2005-03-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. J-43600 ACR 2000 ESSENTIAL REFRIGERANT RECOVER/RECHARGE EQUIPMENT. 1993-2005 PASSENGER CARS AND LIGHT TRUCKS. *TT
0408520052005-03-07. Service bulletin. EQUIPMENT. REMOTE KEYLESS ENTRY (RKE) SYSTEM INOPERATIVE. *TT
0400890242005-02-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FIELD PRODUCT REMINDER CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES AND BULLETINS RELEASED WEEKS OF MAY 31, 2004 AND JUNE 7, 2004. *EH

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