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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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By component

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Bulletins, newest first
0716032003-10-31. Service bulletin. FUEL SYSTEM, GASOLINE. POOR RATINGS ON FUEL ECONOMY. *TT
0716032003-10-31. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INSUFFICIENT AIR CONDITIONING SYSTEM COOLING. *TT
0623032003-10-29. Service bulletin. EQUIPMENT:ELECTRICAL. OFF ROAD STOP LAMP PACKAGE - A REVISED HARNESS TO BE SHIPPED. *TT
0619032003-10-29. Service bulletin. SERVICE BRAKES, HYDRAULIC. BRAKE PAD WEAR - QUICK FEEDBACK. *TT
0607032003-10-29. Service bulletin. UNKNOWN OR OTHER. TECHNICAL TELECAST REGARDING CONNECTOR ISSUES, P0573; AIR CONDITIONER COMPRESSOR FAILURE; MEDTRONIC TESTER; 02 SENSOR; CLUNK NOISE ON 2/3 UP SHIFT, 3/2 DOWNSHIFT, AND P0440 FUEL CAP ISSUES. *TT
0603032003-10-28. Service bulletin. EQUIPMENT:ELECTRICAL. REAR AIR AUXILIARY INFLATOR COMPRESSOR WILL NOT START WHEN THE SWITCH IS DEPRESSED. DIAGNOSIS. *TT
0603032003-10-28. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER. REAR WINDOW WASHER IS INOPERATIVE. POSSIBLE CAUSE/DIAGNOSIS. *TT
0602032003-10-28. Service bulletin. EQUIPMENT. OFF ROAD SPOT LAMP PACKAGES. STOP SELL OR INSTALLATION OF THESE KITS. *TT
0530032003-10-28. Service bulletin. EQUIPMENT. ROOF MOUNTED OFF ROAD SPOT LAMP PACKAGES - ORDERS FOR PART NUMBERS. *TT
0523032003-10-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONER LOW PRESSURE CYCLING SWITCH INTERMITTENTLY INOPERATIVE OR STUCK OPEN/ INTERMITTENT AIR CONDITIONER OPERATION AND/OR LOSS OF COLD AIR. *TT
0523032003-10-28. Service bulletin. STRUCTURE:BODY. CREEK TYPE SOUND IS DETECTED UPON CLOSING THE CENTER CONSOLE LID, THE CAUSE IS WITHIN THE RELEASE BUTTON MECHANISM. TROUBLESHOOTING TIPS. *TT
0523032003-10-28. Service bulletin. STRUCTURE:BODY:TAILGATE. RATTLE IN REAR OF VEHICLE, POSSIBLE TAILGATE. CONDITION COULD BE CONTACT BETWEEN ONE OF THE TAILGATE LATCHES AND THE SIDE OF THE STRIKER - DIAGNOSIS. *TT
0523032003-10-28. Service bulletin. STRUCTURE:BODY. WET CARPET ON PASSENGER SIDE FLOOR - PROBABLE CAUSES/REPAIRS. *TT
0522032003-10-28. Service bulletin. POWER TRAIN. PRODUCT FIELD ACTION 03012. VEHICLES ARE EQUIPPED WITH A MECHANICAL OVERRIDE THAT COULD ALLOW THE IGNITION KEY TO BE REMOVED WITH THE SHIFT LEVER IN A POSITION OTHER THAN PARK. IN ADDITION, THESE VEHICLES HAVE AN OVERRIDE THAT CAN ALLOW THE TRANSMISSION TO BE SHIFTED OUT OF PARK WITH THE IGNITION IN THE OFF POSITION. *TT
00522032003-10-28. Service bulletin. POWER TRAIN. DRIVELINE CLUNK WHEN STOPPING. THIS NOISE OCCURS ON A 3/2 DOWNSHIFT AT APPROXIMATELY 15 MILES PER HOUR AND MAY BE MORE NOTICEABLE ON QUICK STOPS. *TT
020846010E2003-10-03. Service bulletin. UNKNOWN OR OTHER. PROGRAMMING ONSTAR MODULE FOR CANADIAN FRENCH VOICE RECOGNITION. *TT UPDATE. *TT UPDATED *EH
0307300282003-10-02. Service bulletin. POWER TRAIN. DRIVELINE CLUNK WHEN STOPPING. *TT
0308440092003-09-29. Service bulletin. ELECTRICAL SYSTEM. RADIO NOISE HEARD IN ONE OR MORE SPEAKERS. *TT
030730002A2003-09-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. TRANSMISSION COOLING SYSTEM SERVICE TOOL J 45096 - TRANSFLOW INFORMATION. *TT
0306040332003-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE P0336. *TT UPDATE. TO INCLUDE 2004 ISUZU NQR COMMERCIAL MODELS. *TT
0306040312003-09-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REVISED DIAGNOSTIC TROUBLE CODE P1125. *TT
0304180032003-09-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REVISED WHEEL DRIVE SHAFT INNER JOINT AND SEAL REPLACEMENT. *TT
0301390082003-09-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. CHANGES IN AIR CONDITIONING COMPESSOR ON/OFF INSTRUMENT PANEL DISPLAY SYMBOL FROM 2003 TO 2004 MODEL YEAR AND SYNCHRONIZING THE DRIVER AND PASSENGER SET TEMPERATURES. *TT
020604057B2003-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LABOR OPERATION ASSIGNMENTS FOR CONTROL MODULE REPROGRAMMING. *TT
010846002C2003-09-26. Service bulletin. EQUIPMENT. PROGRAMMING OF REPLACEMENT ONSTAR VEHICLE COMMUNICATION AND INTERFACE MODULES (VCIM). *TT

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