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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
019392004-05-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 4.3 4.8 5.3 6.0 LR4 LU3 LM7 L59 LQ4 LQ9 ENGINES- EVAP CODE P0442. *MR
019242004-05-04. Service bulletin. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM. FRONT LOWER CONTROL ARM CHANGE. *MR
018812004-05-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE CONTINUES TO RUN WHEN YOU TAKE THE KEY OUT OF THE IGNITION. *TT
017142004-05-03. Service bulletin. POWER TRAIN. THE 4L60E/4L65E AUTOMATIC TRANSMISSION MAY EXPERIENCE A LEAK, INOPERATIVE/SLIPPING IN 2ND, 3RD AND 4TH GEARS OR NO MOVEMENT (NO FORWARD OR REVERSE) DUE TO EXCESS FLUID LOSS. SIT BULLETIN 1455088. *TT
017102004-05-03. Service bulletin. STRUCTURE:BODY. RATTLE IN REAR STOWAGE. SERVICE VME. SIT BULLETIN 1454806. *TT
017042004-05-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. PROGRAMMING CONTROL HEADS - HVAC AC. *TT
016912004-04-30. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. REAR LIFTGATE RATTLE, CHUCKING NOISE. SIT BULLETIN 1442699. *TT
017292004-04-30. Service bulletin. EQUIPMENT. ONSTAR WHITE DOT BUTTON VISUAL CHANGE BUILD SCHEDULE. SIT BULLETIN 1459145. *TT
017432004-04-27. Service bulletin. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS. SERVICE VME - ICE ACCUMULATION AT THE LOWER FRONT DOOR HINGE PILLARS. SIT BULLETIN 1460391. *TT
030861003A2004-03-05. Service bulletin. STRUCTURE:BODY. PAINT PEELING FROM SIDE ASSIST STEP. *TT UPDATED *EH
030730007A2004-03-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ENGAGEMENT TIME OF ELECTRONICALLY CONTROLLED TRANSMISSIONS IN GENERAL MOTORS VEHICLES. VARIOUS MODELS INCLUDING 2000-2006 ALL LIGHT DUTY TRUCKS. *TT
030605008B2004-03-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. ADVANCE SERVICE INFORMATION - EXHAUST SYSTEM POPPING/SNAPPING NOISE WHEN VEHICLE IS HOT, AT IDLE OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF. *TT BULLETIN 03-06-05-008, DATED 11/01/2003 REPLACED. *TT
0307300562004-03-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. *TT
030848005A2004-03-04. 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
0301380192004-03-02. 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
0300890432004-03-02. 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 NOVEMBER 3, 2003 AND NOVEMBER 10, 2003. VARIOUS OTHER MODELS INCLUDING 2004 AND PRIOR PASSENGER CARS AND TRUCKS. *TT
0300890392004-03-02. Service bulletin. UNKNOWN OR OTHER. SEARCH TIPS FOR LOCATING PRELIMINARY INFORMATION (PI) DOCUMENTS IN SERVICE INFORMATION (SI). VARIOUS MODELS INCLUDING 2004 AND PRIOR PASSENGER CARS AND TRUCKS. *TT
0300890382004-03-02. 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 20, 2003 AND OCTOBER 27, 2003. *TT
020604057D2004-03-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LABOR OPERATION ASSIGNMENTS FOR CONTROL MODULE PROGRAMMING. VARIOUS MODELS INCLUDING 2004 AND PRIOR PASSENGER CARS AND TRUCKS, 2003-2004 KODIAK C4500-C8500 AND TOPKICK C4500-C8500 SERIES MODELS. *TT
020089006A2004-03-02. Service bulletin. UNKNOWN OR OTHER. NEW ADD TIME FOR LABOR OPERATION L2300 - CONVERTER, OXIDATION CATALYTIC - REPLACE. OTHER MODELS INCLUDING 2004 AND PRIOR PASSENGER CARS AND TRUCKS . *TT
010842001B2004-03-02. Service bulletin. EXTERIOR LIGHTING. EXTERIOR LAMP CONDENSATION AND REPLACEMENT GUIDELINES. VARIOUS MODELS INCLUDING 1993-2006 PASSENGER CARS AND LIGHT AND MEDIUM DUTY TRUCKS. *TT
010089010A2004-03-02. Service bulletin. UNKNOWN OR OTHER. INFORMATION ON USE OF DIAGNOSTIC WORKSHEET. 2004 AND PRIOR MODEL YEAR PASSENGER CARS AND TRUCKS. *TT
000089008E2004-03-02. Service bulletin. UNKNOWN OR OTHER. SOME CUSTOMERS MAY WANT TO TOW THEIR VEHICLE BEHIND ANOTHER VEHICLE WITH ALL FOUR TIRES ONT HE GROUND. THIS BULLETIN PROVIDES INFORMATION REGARDING RECREATIONAL (DINGHY) TOWING FOR CERTAIN VEHICLES INCLUDING 1988-2004 CHEVROLET AND GMC LIGHT DUTY TRUCKS. *TT
014832004-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). VEHICLE HAS NO PCM (POWER TRAIN CONTROL MODULE) COMMUNICATION WITH TECH 2. SIT BULLETIN 1400427. *TT
015022004-03-01. Service bulletin. POWER TRAIN. 4L65E TRANSMISSION SHIFTS FREQUENTLY. SERVICE VME. SIT BULLETIN 1402886. *TT

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