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Service bulletins for the 2005 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.

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

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Bulletins, newest first
31482004-11-03. Service bulletin. VISIBILITY:WINDSHIELD. WINDSHIELD MOLDING REPLACEMENT. *TC
3121A2004-11-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. EXHAUST VIBRATION RESONANCE OR MOAN 99-05 FULL SIZE TRUCKS AND UTILITY VEHICLES WITH GEN 3 V-8 ENGINES. *TC
31462004-11-02. Service bulletin. TIRES. ALL GENERAL MOTORS LIGHT DUTY TRUCKS AND HUMMER H2 BRIDGESTONE DUELER A/T TIRES SIZE LT285/75R16 LOAD RANGE D. *TC
30552004-10-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7. *TT
30542004-10-14. Service bulletin. POWER TRAIN. REPLACEMENT FLEXPLATE MAY HAVE LARGER BOLT HOLES THAN THE ORIGINAL FLEXPLATE. *TT
30522004-10-14. Service bulletin. STRUCTURE:BODY. PROPANE OR NATURAL GAS TYPE ODOR FROM VEHICLE. *TT
3050A2004-10-13. Service bulletin. EQUIPMENT. 02-05 ONSTAR EQUIPPED VEHICLES EMITTING BEEPING NOISE BEFORE CONNECTING TO ONSTAR. *TT
30782004-10-13. Service bulletin. SUSPENSION:FRONT:WHEEL BEARING. GREASE LEAK FROM FRONT HUB BEARING. *TT UPDATE. *TT
30602004-10-13. Service bulletin. EQUIPMENT. KEY CODE LOOK-UP. 1990-2005 ALL MAKES/MODELS INCLUDING HUMMER H2. *TT
30312004-10-07. Service bulletin. UNKNOWN OR OTHER. UPDATES TO SI AND THE PI NUMBERING PROCESS. SERVICE VME. 2004-05 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS INCLUDING HUMMER H2). *TT
30902004-10-04. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. UNDERBODY RATTLE WHILE DRIVING OR BUZZ NOISE WHEN BACKING UP. *TT
30892004-10-04. Service bulletin. ELECTRICAL SYSTEM. SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT
30872004-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CRANK NO START WITH NO CRANKING RPM SPARK OR INJECTOR PULSE. *TT
101420022004-10-01. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. EXTERIOR MIRROR CURB VIEW ASSIST PROGRAMMING FUNCTIONS AND FEATURES. *TT
30492004-09-27. Service bulletin. STRUCTURE:BODY. CHROME BRUSH GUARD INSTALLATION. SERVICE VME. *TT
3046A2004-09-27. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *TT
30602004-09-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE ENGINE DOES NOT STALL WHEN PERFORMING A P1870 DIAGNOSTIC TEST WITH THE TECH 2 SCAN TOOL OR WHEN COMMANDING THE TORQUE CONVERTER CLUTCH ENABLE SOLENOID ON APPLICATIONS THAT DO NOT HAVE THE P1870 DIAGNOSTIC TEST LISTED. 4L60E OR 4L65E TRANSMISSIONS. *TT
3000A2004-08-25. Service bulletin. SUSPENSION:REAR. REAR AXLE LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS. *MJ
15308082004-08-23. Service bulletin. STRUCTURE:BODY. RATTLE INSIDE MIDGATE WHILE DRIVING. *MJ
0408440052004-08-16. Service bulletin. STRUCTURE:BODY. UTILIZING TECH 2 TO RETRIEVE PART NUMBERS FOR RADIOS, COMPACT DISC (CD) CHANGERS AND INSTRUMENT PANEL CLUSTERS (IPC). 2000-2004 PASSENGER CARS AND TRUCKS. *MJ 2005 MODELS ADDED. *TT
0407300132004-08-16. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION SHIFT, ENGINE DRIVEABILITY CONCERNS OR SERVICE ENGINE SOON (SRS) LIGHT ON AS A RESULT OF THE INSTALLATION OF AN AFTERMARKET REUSABLE, EXCESSIVELY OILED AIR FILTER. 2004 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *MJ 2005 AND PRIOR. *TT
0400890102004-08-12. Service bulletin. UNKNOWN OR OTHER. NEW SERVICE BULLETIN APPEARANCE AND PRINTING INFORMATION. OTHER MODELS INCLUDING 2005 AND PRIOR PASSENGER AUTOMOBILES AND TRUCKS. *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
000522002D2004-08-03. Service bulletin. SERVICE BRAKES, HYDRAULIC. BRAKE WARRANTY SERVICE PROCEDURES. 1999-2004 ALL GM, ISUZU, SAAB AND SATURN PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT UPDATE. *TT UPDATE. *TT
040844009A2004-08-03. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. XM DIGITAL RADIO RECEIVER ORDERING PROCESS. *MJ PARTS RESTRICTION ON ORDERING XM DIGITAL RADIO RECEIVER. 2002-2006 PASSENGER CARS AND TRUCKS (INCLUDING SATURN). *TT

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