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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
32882005-02-01. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. POWER FOLDING MIRRORS WILL NOT FOLD INWARD. THIS ALSO INCLUDES 03-05 CHEVROLET GMC AND CADILLAC FULL SIZE TRUCKS AND UTILITIES WITH DL3. *EH
0100890152005-01-12. Service bulletin. UNKNOWN OR OTHER. DEALER INSTALLED REGULAR PRODUCTION OPTIONS (RPO) AND REGULAR PRODUCTION ACCESSORIES (RPA). 2005 AND PRIOR PASSENGER <A TITLE="CLICK FOR MORE INFORMATION ABOUT CAR" STYLE="TEXT-DECORATION: NONE; BORDER-BOTTOM: MEDIUM SOLID GREEN;" HREF="HTTP://SEARCH.TARGETWORDS.COM/U.SEARCH?X=5977|1||||CARS|AA1VDW">CAR</A>S AND LIGHT DUTY TRUCKS. *TT
040850016B2005-01-11. Service bulletin. SEATS. MEMORY SEAT MAY NOT RETURN TO REQUESTED POSITION. *EH
0201390072005-01-11. Service bulletin. UNKNOWN OR OTHER. AUTOMATIC DUAL ZONE HVAC BATTERY DRAW. *AR
0406040542005-01-11. Service bulletin. UNKNOWN OR OTHER. NON-GM PARTS AND ACCESSORIES (AFTERMARKET). 2005 AND PRIOR PASSENGER CARS AND TRUCKS. *TT
0401390092005-01-10. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR. HVAC BLOWER MOTOR INOPERATIVE OR STAYS RUNNING. *TT
0401380102005-01-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIAGNOSTIC INFORMATION TO ACCURATELY DIAGNOSE A/C LOW PRESSURE SWITCH USING NEW KENT MOORE SPECIAL TOOL GE-47742. *TT
0400890352005-01-10. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES AND BULLETINS RELEASED WEEKS OF AUGUST 9, 2004 AND AUGUST 16, 2004. *TT
0400890302005-01-08. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - CAR AND TRUCK "FIX IT RIGHT THE FIRST TIME" ISSUES AND BULLETINS RELEASED WEEKS OF JUNE 28, 2004 AND JULY 19, 2004. *AR
0408480012005-01-03. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. REAR WINDOW DEFOGGER - BROKEN HEATING GRID DETECTION METHOD. 2004 AND PRIOR PASSENGER CARS AND LIGHT DUTY TRUCKS. *TT UPDATED *EH
0403100012005-01-03. Service bulletin. SUSPENSION; TIRES:TREAD/BELT. TIRE PUNCTURE REPAIR PROCEDURES FOR ALL CARS AND LIGHT DUTY TRUCKS. 2008 AND PRIOR GM PASSENGER CARS & LIGHT DUTY TRUCKS (INCLUDING SATURN) AND HUMMER H2, H3 AND SAAB 9-7X. *TT UPDATED. *KB UPDATED 4/11/08. *NJ UPDATED 8/4/09. *PE
0400890022005-01-03. Service bulletin. UNKNOWN OR OTHER. CAR AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF JANUARY 12, 2004 AND JANUARY 19, 2004. 2004 AND PRIOR PASSENGER CARS AND TRUCKS. 2004 AND PRIOR HUMMER H2. *TT
0400890012005-01-03. Service bulletin. UNKNOWN OR OTHER. FIELD PRODUCT REMINDER - <A TITLE="CLICK FOR MORE INFORMATION ABOUT CAR" STYLE="TEXT-DECORATION: NONE; BORDER-BOTTOM: MEDIUM SOLID GREEN;" HREF="HTTP://SEARCH.TARGETWORDS.COM/U.SEARCH?X=5977|1||||CARS|AA1VDW">CAR</A> AND TRUCK FIX IT RIGHT THE FIRST TIME ISSUES, PARTS RESTRICTION INFORMATION AND BULLETINS RELEASED WEEKS OF DECEMBER 15, 2003 AND JANUARY 5, 2004. 2004 AND PRIOR PASSENGERS CARS AND TRUCKS. 2004 AND PRIOR HUMMER H2. *TT
0408680022004-12-29. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. CRUISE CONTROL OPERATION -- INCREASING SET SPEED. INCLUDING 2004-2005 PASSENGER CARS AND LIGHT DUTY TRUCKS. *TT
0407300372004-12-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RELEASE OF DEXRON III (H-REVISION) AUTOMATIC TRANSMISSION FLUID (ATF). 2005 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
0403070022004-12-28. Service bulletin. SUSPENSION. NEW ALIGNMENT PROCEDURE FOR LABOR OPERATION NUMBERS E2020 AND E2000. 2001-2005 PASSENGER CARS AND LIGHT DUTY TRUCKS. *TT
0403100122004-12-28. Service bulletin. SUSPENSION. PITTING AND BRAKE DUST ON CHROME WHEELS. ALSO INCLUDES 2005 AND PRIOR GM CARS AND TRUCKS. *TT
0406040652004-12-28. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. ENGINEERING INVESTIGATION (EI #04073) HIGH, LOW OR ERRATIC OIL PRESSURE GAUGE READING SETTING DIAGNOSTIC TROUBLE CODES P0522 AND/OR P0523. 2004 ISUZU W4 ALSO INCLUDED. *TT UPDATE. *TT
0406040512004-12-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MAINTENANCE CLEANING OF FUEL INJECTORS. 2005 AND PRIOR ALL GENERAL MOTORS PASSENGER CARS AND TRUCKS INCLUDED. *TT
040604047C2004-12-27. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TOP TIER DETERGENT GASOLINE. 2005 AND PRIOR ALL GENERAL MOTORS PASSENGER CARS AND TRUCKS ALSO INCLUDED. *TT UPDATE. *TT
30872004-12-17. Service bulletin. ENGINE AND ENGINE COOLING. CRANK NO START, STALL, HARD START, AND NO CRANKING RPM. *EH
32152004-12-15. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT PANEL CLUSTER GUAGES FLOAT UP AFTER IGNITION KEY TURNED OFF. VARIOUS MODELS INCLUDING 99-05 CHEVROLET, GMC AND CADILLAC FULL SIZE UTILITIES. *TT
31132004-12-14. Service bulletin. UNKNOWN OR OTHER. NO CONNECT. GEN 6 VEHICLES IN ASHE, ALLEGHANY, SURRY AND WILKES COUNTY, NC CANNOT CONNECT O ONSTAR OR EMERGENCY SERVICES. *TT
31702004-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH 1-2 SHIFT. *EH
010138006C2004-11-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CONTAMINATED R-134A AIR CONDITIONING SYSTEMS -AIR CONDITIONING SYSTEM FLUSHING PROCEDURES AND UNIVERSAL IN-LINE AIR CONDITIONING FILTER INSTALLATION. 1993 - 2005 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT

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