There are 2 owner-reported suspension complaints for the 2004 Hummer H2in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2004 Hummer H2.The contact stated while driving at 35MPH, the contact stated the vehicle loss of control and forward momentum to the vehicle which caused the vehicle stalled and loss motive power. The contact who is a mechanic inspected the vehicle and notice that front differential carrier bolt had snapped was detached from the frame and connection to the engine. The vehicle was towed to the contact residence then towed later to a local dealer who inspected the vehicle diagnosed the failure the same as the contact that front differential carrier bolt was damaged and to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was at approximately 100,000. Consumer stated component that failed is the front differential to front differential carrier connection.
FRONT WHEEL LINKAGE FAILURE, WHEEL FELL OFF. MY BROTHER AND I NEARLY DIED TODAY FROM AN ACCIDENT IN MY MOTHERS H2. WE HAD JUST LEFT A FRIENDS HOUSE AND WERE TRAVELING AT ABOUT 35 MPH WHEN ALL OF A SUDDEN IT SEEMED THAT THE FRONT DRIVER SIDE WHEEL BROKE FREE. THE H2 VIOLENTLY SWERVED TO THE LEFT AND EVEN THOUGH I AM A BIG GUY IT WAS ALMOST IMPOSSIBLE TO KEEP THAT 6000 LBS BEAST FROM SWERVING. I HIT THE BRAKES BUT THOSE DIDN'T SEEM TO HELP SINCE THE BRAKES WERE STILL ATTACHED TO THE WHEEL WHICH I COULD SEE WAS BEHIND US FROM THE SIDE VIEW MIRROR. THE H2 TORE THROUGH THE OPPOSITE LANE AND SLAMMED US INTO A DITCH CAUSING EXTENSIVE DAMAGE TO THE DRIVERS SIDE. I CAN ONLY THANK GOD THAT WE WERE FINE AND THAT THERE WAS NO ONCOMING TRAFFIC AT THAT TIME. THE BRAKING OFF OF THE WHEEL CAUSED MAJOR WHEEL WELL AND FENDER DAMAGE. THE FORCE OF THE WHEEL SLAMMING INTO THE WELL SHATTERED THE WINDSHIELD AND BROKE THE SIDE STEP. I HAD DIFFICULTY OPENING THE DOOR TO GET OUT BECAUSE OF THE DAMAGE. WHEN I GOT OUT I SAW THAT THE WHEEL WAS ABOUT 10 FEET BEHIND US. THERE WERE SEVERAL SUSPENSION PIECES STILL CONNECTED TO IT. THE POLICE OFFICER HAD A HARD TIME BELIEVING MY STORY, BUT THAT IS EXPECTED FROM THEM, THE REAL PAINFUL THING IS THAT MY MOTHER WONT BELIEVE ME EITHER. I HAVE READ OF SEVERAL CASES LIKE THIS. THIS WAS A VERY SCARY ACCIDENT, NOTHING IS WORSE THAN LOOSING ALL CONTROL OF A VEHICLE WITH A LOVED ONE INSIDE, KNOWING THAT YOU ARE RESPONSIBLE FOR THAT PERSON. *AK
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026