WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Bulletins, newest first
0503080062005-11-04. Service bulletin. SUSPENSION. REVISED STABILIZER SHAFT LINK REPLACEMENT PROCEDURE AND FASTENER TIGHTENING SPECIFICATIONS. 1999 - 2005 CHEVROLET AND GMC FULL SIZE PICKUP AND UTILITY MODELS. *TT
9331062005-11-04. Service bulletin. SUSPENSION. LOW TIRE PRESSURE, LEAKING CAST ALUMINUM WHEELS. 2005 AND PRIOR GM PASSENGER CARS AND LIGHT DUTY TRUCKS AND SATURN VEHICLES. *TT
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
34242005-11-02. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT
34612005-10-29. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. REAR AIR SUSPENSION IN-OP DTC C0563. *TT
33242005-10-27. Service bulletin. SUSPENSION. SERVICE AIR SUSPENSION MESSAGE AFTER REPLACING THE AIR SUSPENSION COMPRESSOR ASSEMBLY FROM A SINGLE STAGE COMPRESSOR TO A DUAL STAGE COMPRESSOR. MAY ALSO HAVE A CURRENT OR HISTORY CODE C0660 AND/OR C0712. *TT
33102005-10-26. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM. LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE MANEUVERS. 99 - 05 CHEVROLET/GMC/CADILLAC/HUMMER H2 ALL FULL SIZE TRUCKS UTILITIES AND VANS. *TT
36002005-10-24. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. SERVICE VME - SUNROOF MOTOR REPLACEMENT INFORMATION. *TT
34392005-10-21. Service bulletin. POWER TRAIN. NO DRIVE IN D4 OR D3. TO INCLUDE 2005 GMC JIMMY. *TT
35212005-09-28. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. 1998-2008 ALL CHEVROLET, GMC, AND CADILLAC FULL SIZED TRUCKS AND UTILITIES. *KB UPDATED ON 09/20/07. *NJ
33912005-09-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 4L60E/4L65E AUTOMATIC TRANSMISSION MAY EXPERIENCE A CONDITION OF DISTRESSED TRANSMISSION FLUID AND/OR SLIPPING, LATE OR MISSED SHIFTS IN 2ND, 3RD, AND 4TH. *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
6092005-09-02. Service bulletin. SUSPENSION:FRONT:HUB. FRONT HUB BEARING GREASE LEAK. *SC
6102005-08-11. Service bulletin. VISIBILITY:WINDSHIELD. WINDSHIELD UPPER REVEAL MOLDING WHICH MAY CONTRIBUTE TO WIND NOISE IN THE WINDSHIELD AREA. GM TECH LINK. *TT
0509400022005-05-16. Service bulletin. SEAT BELTS; SEAT BELTS:FRONT. SAFETY BELT LOCKING CONDITIONS (NORMAL OPERATING CHARACTERISTIC). 2005-2008 GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN) . *TT UPDATED 04-27-07. *KB UPDATED 11/29/07. *NJ
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
0506040222005-05-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. TOP TIER DETERGENT GASOLINE (DEPOSITS, FUEL ECONOMY, NO START, POWER, PERFORMANCE, STALL CONCERNS). 2005 AND PRIOR ALL GENERAL, SAAB AND SATURN CARS AND TRUCKS. *TT
0500890182005-05-13. Service bulletin. UNKNOWN OR OTHER. GM PARTS ORDERING SYSTEM. ALL 2005 AND PRIOR GM AND TRUCKS. *TT
0500890132005-05-13. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES AND BULLETINS RELEASED WEEKS OF FEBRUARY 14, 2005 AND FEBRUARY 21, 2005. 2005 AND PRIOR PASSENGER CARS AND TRUCKS. *TT
0203070022005-05-12. Service bulletin. SUSPENSION. REVISED FRONT CASTER AND CAMBER ADJUSTMENT PROCEDURE. ORIGINAL NOT YET RECEIVED. *TT
35092005-05-11. Service bulletin. SUSPENSION:REAR. VEHICLE SITS LOW OR THE SUSPENSION SAGS OVERNIGHT. *TT
33692005-05-11. Service bulletin. POWER TRAIN. TO BETTER UNDERSTAND SPRAG DAMAGE AN ENGINEERING INVESTIGATION IS BEING CONDUCTED. TYPICAL SYMPTOMS INCLUDE NO FORWARD MOVEMENT IN D4 OR D3 SHIFT LEVER POSITION. MOVEMENT CAN BE OBTAINED IN D2, D1 OR REVERSE. *TT

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