There are 17 owner-reported body & structure complaints for the 2007 Hummer H3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
So the part that is a malfunction is the rear doors weren’t made with any child lock and of course one of my kids opened the door while i was driving on the highway.I have a 3 and 5 year old and it scared me so bad I had to hurry and pull the hummer over and park and just held my son. I couldn’t even drive after that because of how bad it traumatized me. My mom had to come get and take me and my kids home and drive my hummer back home. Even though we didn’t crash or one of my kids didn’t fall out.it’s still a very serious safety hazard. I reached out to gm to see what my options were and there response was how gm made child locks in 2007 and up and that’s not the truth because mine is a 2007 and it clearly doesn’t have child locks. Then they later proceeded to tell me I should just sell my vehicle. I was so upset because if one of my kids would have fallen out and something happened I would do everything in my power to make sure they were held accountable and file a lawsuit against them. Yes The vehicle is available to inspect. My kids safety was at risk and then me braking and pulling off the highway in panic mode could have caused an accident.it’s been reported to gm and also local dealers. There was no warning just when it happened scared me so bad because my kids are in my back seat. The photos I uploaded are of the transcribed voicemails and I’m willing to also submit the voicemails from gm as well.
The contact owns a 2007 Hummer H3. The contact stated that while driving at various speeds, the hood louvers loosened without warning. Upon investigation, the contact discovered NHTSA Campaign Number: 10V179000 (Structure) which he linked to the failure. The dealer was notified of the failure and informed that the vehicle was already serviced prior under recall. The contact was provided an estimate for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 140,000.
THE TUBULAR FRAME HAD WHAT LOOKS LIKE COLD SLUGS WELDS AT SEVERAL JOINT LOCATIONS THAT ALLOWED WATER TO ENTER AND RUST FROM THE INSIDE OUT. THE FRAME CAN BE PUSHED THROUGH WITH A FINGER. THE FRAME SPRINGS BROKE WHILE DRIVING DOWN THE ROAD DROPPING THE FUEL TANK THROUGH THE GAS TANK CAUSING A FIRE HAZARD.
HOOD VENT IS LOOSE&COMING OFF.
PLASTIC HOOD LOUVER HAS BECOME DETACHED, SEVERAL OF THE PLASTICS CLIPS ATTACHING THE LOUVERS TO THE HOOD ARE BROKEN. THE LOUVER FLEW OFF THE VEHICLE WHILE DRIVING ON A STATE HIGHWAY GOING APPROXIMATELY 50 MILES PER HOUR.
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED TWO YEARS AGO PER NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE). WHILE DRIVING APPROXIMATELY 55 MPH, THE HOOD LOUVER RATTLED AGAINST THE HOOD AND BECAME LOOSE, CAUSING THE HOOD LOUVER TO DETACH FROM THE VEHICLE. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 160,000.
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING APPROXIMATELY 70 MPH, THE HOOD LOUVER SUDDENLY DETACHED FROM THE VEHICLE. THE CONTACT STOPPED THE VEHICLE AND RETRIEVED THE DETACHED LOUVER FROM THE SIDE OF THE ROAD. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER AND LOCAL DEALER (JEFF GORDAN CHEVROLET, 228 S. COLLEGE RD, WILMINGTON, NC) WERE NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE CONTACT STATED THAT THE VEHICLE WAS PREVIOUSLY SERVICED PER NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE). THE FAILURE MILEAGE WAS 164,000.
SUN ROOF DID LEAK GOT THAT FIXED NOW WATER STILL COMING IN ON FLOOR BOARD ON DRIVER SIDE AND PASSENGER SIDE DONT KNOW WHERE IT IS COMING FROM
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING, THE GRILL OF THE VEHICLE DETACHED FROM THE HOOD. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS 106,000.
TL* THE CONTACT OWNS A 2007 HUMMER H3. AFTER WASHING THE VEHICLE, THE CONTACT NOTICED THAT THE HOOD LOUVER WAS LOOSE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE MANUFACTURER STATED THAT THE DEALER REPAIRED THE VEHICLE PER NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE). THE CONTACT STATED THAT THERE WAS NO EVIDENCE THAT THE ADHESIVE WAS APPLIED ON THE VEHICLE UPON INSPECTION. THE FAILURE MILEAGE WAS APPROXIMATELY 170,000. UPDATED 05/05/17*LJ *CN
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT WATER WAS LEAKING FROM THE MOON ROOF ONTO THE FLOOR CARPET, DRIVER AND PASSENGER SEATS, AND DOOR PANELS. THE FAILURE CAUSED MOLD BUILDUP. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE DRAIN THAT TRAVELED UNDER THE MOON ROOF CLOGGED UP AND NEEDED TO BE CLEANED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 43,000.
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE GETTING THE VEHICLE WASHED, THE HOOD LOUVER STARTED TO SEPARATE FROM THE HOOD. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE VEHICLE WAS SERVICED UNDER NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE), BUT THE REMEDY FAILED TO REPAIR THE VEHICLE. THE CONTACT MENTIONED THAT THE HOOD LOUVER STARTED TO DETACH AFTER THE VEHICLE WAS WASHED AND DRIED BY THE CAR WASH BLOWER. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 15V421000 (VISIBILITY) AND 10V179000 (STRUCTURE). THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
I BOUGHT THIS VEHICLE USED APPROXIMATELY 7 YEARS AGO. I WAS TAKING MY VEHICLE THROUGH AN AUTOMATED CAR WASH AND THE HOOD VENT CAME COMPLETELY OFF. I NOTICED THERE WAS A RECALL IN 2010 CONCERNING THIS PART BUT I NEVER GOT NOTIFICATION. WHEN I LOOK UP BY MY VIN, IT STATES NO RECALLS. WHY NOT? I NOTICED IT WAS LOOSE AT ONE LOWER CORNER AND ALREADY HAD DISCUSSED FIXING IT WITH THE BODY SHOP. I NEED THE HOOD VENT REPLACED NOW SINCE IT TORE THE LATCHES LOOSE FROM THE TOP. *TR
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT THE INTEGRAL CLIP TABS ON THE HOOD FRACTURED AND LOOSENED. THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 10V179000 (STRUCTURE) BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 39,462 AND THE CURRENT MILEAGE WAS 51,000. *TR
ALMOST LOST CONTROL OF HUMMER H3 DUE TO CHROME INSERT ON ENGINE HOOD REFLECTING SUNLIGHT INTO THE DRIVERS EYES AT CERTAIN ANGLES- GM MUST CONSIDER THAT PLACING CHROME PARTS ON THE ENGINE HOOD HAVE REFLECTIVE CAPABILITIES THAT INTERFERE WITH SAFE OPERATIONS OF THE VEHICLE. *TR
2007 H3 HUMMER, SUNROOF LEAKS, TOOK BACK TO DEALER, TOLD "DON'T GO THROUGH POWER WASH", 8 INCHES OF SNOW FELL TODAY, PASSENGER SIDE FRONT AND BACK DOORS, SNOW BLEW IN THE VEHICLE. VEHICLE WAS LOCKED, WINDOWS UP AND THE SNOW BLEW IN THE VEHICLE. WHAT A MESS. *TR
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