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Service bulletins for the 2003 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.

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

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Bulletins, newest first
0206030102005-02-12. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BATTERY PARASITIC DRAIN. THIS SERVICE BULLETIN REPLACES 020603010. *EH
010138006B2005-02-11. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CONTAMINATED R134A A/C SYSTEMS - AIR CONDITIONING SYSTEM FLUSHING PROCEDURES AND GUIDELINES. INCLUDING 1993-2004 PASSENGER CARS AND LIGHT DUTY TRUCKS. *EH
0002350032005-02-11. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL. *EH UPDATED *EH UPDATED. *KB
0000890272005-02-11. Service bulletin. STRUCTURE:BODY. ELIMINATING UNWANTED ODORS IN VEHICLES. *EH
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
000235003E2005-01-11. Service bulletin. STEERING. CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL. THIS BULLETIN REPLACES PREVIOUS BULLETIN 00-02-35-003E. *TT
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
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
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
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
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
30562004-11-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT
30442004-11-17. Service bulletin. EQUIPMENT. GENERATION 5 ONSTAR STEERING WHEEL CONTROL FUNCTION. *TT

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