WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Bulletins, newest first
020603006A2003-03-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT ILLUMINATION OF VARIOUS INSTRUMENT PANEL WARNING LAMPS - SES, GENERATOR, SIR, BRAKE, SECURITY,THEFT, ABS, HOT; GAGE READINGS INCORRECT; ERRATIC RPM DISPLAY; NO CRANK ENGINE. 1997-2003 PASSENGER CARS AND TRUCKS. *TT
010730036D2003-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC TIPS FOR DIAGNOSTIC TROUBLE CODE P0756. 2006 AND PRIOR PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT
010730042A2003-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INFORMATION ON 2-3 UPSHIFT OR 3-2 DONWSHIFT CLUNK NOISE FOR 2003 AND PRIOR LIGHT DUTY TRUCKS. *TT THIS BULLETIN REPLACES 01-07-30-042A DATED 10/01/2002. 2004 AND PRIOR LIGHT DUTY TRUCKS. *TT
0208660112003-03-29. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. LOWER LIFTGATE MOLDING APPEARS WAVY, LOOSE OR FALLS OFF. *TT
0203990022003-03-29. Service bulletin. SUSPENSION. SERVICE AIR SUSPENSION MESSAGE DIAGNOSTIC TROUBLE CODE C0711 AND / OR CLICKING NOISE FROM REAR OF VEHICLE WITH IGNITION OFF AND / OR ELECTRONIC CONTROLLED AIR SUSPENSION (ECAS) COMPRESSOR CYCLES TOO FREQUENTLY. *TT
020605005A2003-03-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *TT
0203100082003-03-27. Service bulletin. SUSPENSION. RECOMMENDED WHEEL NUT / BOLT TORQUE SPECIFICATIONS FOR 2003 PASSENGER CARS AND LIGHT DUTY TRUCKS AND 2003 HUMMER H1. *TT
0101022003-02-28. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. INFORMATION ON PARTS AVAILABILITY FOR THE LOCKING REAR DIFFERENTIAL. *TT
020522004B2003-02-14. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS; SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT
020730029A2003-02-12. Service bulletin. POWER TRAIN. NEW POWERTRAIN QUALITY CENTER FOR ENGINE AND TRANSMISSION ASSEMBLY REPLACEMENT. *TT
0205220042003-02-12. Service bulletin. SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT
0206010292003-02-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEEDLE BEARINGS FOUND IN OIL PAN. *TT
020522004A2003-02-10. Service bulletin. SERVICE BRAKES, HYDRAULIC. TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT
020730024A2002-10-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
0208460062002-10-03. Service bulletin. UNKNOWN OR OTHER. INCORRECT ONSTAR GLOBAL POSITION SYSTEM (GPS) LOCATION REPORTED DURING ONSTAR CALL FOR 2000 - 2002 PASSENGER CARS AND LIGHT DUTY TRUCKS WITH ONSTAR. *TT UPDATE TO ADD 2005 MODELS. *TT
0206030082002-09-28. Service bulletin. ELECTRICAL SYSTEM. LOW VOLTAGE DISPLAY ON IP GAUGE, LIGHTS DIM AT STOP LIGHTS, BATTERY DISCHARGED, NO START, SLOW CRANKING, DIM LIGHTS AT IDLE, LOW GENERATOR OUTPUT. NLM *AR INCLUDES 1990-2008 PASSENGER CARS AND LIGHT DUTY TRUCKS INCLUDING SATURN. UPDATED 07-24-07. *KB UPDATED 11/29/07. *NJ
0206030092002-09-28. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. BATTERY CHARGING TIPS - 1990-2003 PASSENGER CARS AND LIGHT DUTY TRUCKS, 1990-2003 ISUZU LIGHT DUTY TRUCKS, 2003 HUMMER H2. NLM 1990 - 2007 GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN); 1990 - 2007 ISUZU LIGHT DUTY TRUCKS. *TT
9908510072002-07-15. Service bulletin. WHEELS. THIS BULLETIN UPDATES GMCS POSITION ON REFINISHING ALUMINUM WHEELS FOR 2003 AND PRIOR PASSENGER CAR AND TRUCKS. *TT 2007 AND PRIOR PASSENGER CARS AND TRUCKS INCLUDING SATURN. UPDATED. *KB
0206040152002-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT NO CRANK, NO START CONDITION FOR 2001-2002 PASSENGER CARS AND TRUCKS. *SLC 2001-2007 GM PASSENGER CARS AND LIGHT-DUTY TRUCKS (INCLUDING SATURN). *TT
SB-020842001B2002-05-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. GENERAL MOTORS VEHICLES AND TRUCKS: SUBJECT REGARDING, 2002 AND PRIOR PASSENGER CARS AND TRUCKS, CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. *SLC UPDATED *EH UPDATED 3/30/11. HEADLAMP LENS OVERHEATING WHEN COVERED AND CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. CAN CAUSE CRAZING OR CRACKING OF HEADLAMP LENS. *PE UPDATED 6/24/11. *PE UPDATED 5/14/12. INCLUDING 2013 MODEL YEAR. *PE
020730001A2002-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC INFORMATION ON DIAGNOSTIC TROUBLE CODE P1870, TRANSMISSION COMPONENT SLIPPING FOR 2000 - 2002 PASSENGER CARS AND LIGHT DUTY TRUCKS. *TT UPDATE TO INCLUDE 2004 MODELS. *TT UPDATED *EH
0107300422002-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES MAY EXHIBIT A CLUNK NOISE THAT CAN BE HEARD ON A 2-3 UPSHIFT ON 2002 AND PRIOR LIGHT DUTY TRUCKS. *TT UPDATE. 2007 AND PRIOR PASSENGER CARS AND LIGHT DUTY TRUCKS. *KB
010730030A2002-02-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC INFORMATION ON HARSH 1-2 UPSHIFT. 2001-2002 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *YH TO INCLUDE 2003-2006 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT
0105260012001-06-04. Service bulletin. PARKING BRAKE. LOW EFFORT PARKING BRAKE APPLY SYSTEM. *TT
9909400052000-04-07. Service bulletin. SEAT BELTS:FRONT:ANCHORAGE. INFORMATION ON THE AVAILABILITY OF SEAT BELT EXTENDERS FOR 2000 AND PRIOR PASSENGER CARS AND TRUCKS. *TT UPDATED THIS BULLETIN CONTAINS 2007 AND PRIOR PASSENGER CARS AND TRUCKS INCLUDING SATURNS. *KB

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