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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Only bulletins with component: Heating and air conditioning are shown. Show all
| 01348 | 2003-11-20. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. PASSENGER COMPARTMENT AIR FILTER. *TT |
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| 01139B | 2003-11-19. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONING COMPRESSOR BELT OR TENSIONER JUMPS OR FLUTTERS CAUSING A RATTLE NOISE. SERVICE VME. *TT |
| 071603 | 2003-10-31. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INSUFFICIENT AIR CONDITIONING SYSTEM COOLING. *TT |
| 052303 | 2003-10-28. 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 |
| 030139008 | 2003-09-27. 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 |
| 030139007 | 2003-08-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. AIR CONDITIONING (A/C) INOPERATIVE / INTERMITTENT, AIR CONDITIONER BLOWS WARM AIR. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.