| Hummer H1 bulletins |
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
| ENGINE AND ENGINE COOLING |
| 030401 | 07/01/2003 | | 10002918 | High coolant temperature gauge reading without boil-over. model year 2001 and 2002 h1 models. *tt | 2003-10-01 |
| EQUIPMENT |
| 031309 | 03/01/2003 | | 10001599 | Trailer hitch receiver mount bike rack. *tt | 2003-06-09 |
| 031310 | 03/01/2003 | | 10001600 | Shifter/park brake bezel kit. *tt | 2003-06-09 |
| 031311 | 03/01/2003 | | 10001601 | Off-road field repair hardware kits. *tt | 2003-06-09 |
| 031305 | 03/01/2003 | | 10001596 | Stainless steel rain cap cover. *tt | 2003-06-09 |
| 031306 | 03/01/2003 | | 10001597 | Stainless steel tailgate logo surround. *tt | 2003-06-09 |
| EXTERIOR LIGHTING - HEADLIGHTS |
| 031302 | 03/01/2003 | | 10001784 | Stainless steel headlight bezel kit. *tt | 2003-06-26 |
| EXTERIOR LIGHTING - TURN SIGNAL |
| 031316 | 07/01/2003 | | 10002992 | Stainless steel turn signal visor kit. all h1 vehicles. *tt | 2003-10-03 |
| STEERING - WHEEL AND HANDLE BAR |
| 031307 | 03/01/2003 | | 10001598 | Leather/gray burl steering wheel. *tt | 2003-06-09 |
| STRUCTURE - BODY - TAILGATE |
| 031301 | 03/01/2003 | | 10001783 | Stainless steel tailgate recess trim. *tt | 2003-06-26 |
| TIRES |
| 030601 | 05/01/2003 | | 10002449 | Storage of vehicles with 17 inch tires. *tt | 2003-08-29 |