AI Damage2007 Hummer H2: common problems
Owners of the 2007 Hummer H2 filed 11 complaints with NHTSA, most often about electrical system and structure. Details by component below, with sources.
Key figures
- Owner complaints
- 11
What fails most often
- 1 Electrical system 27% of all complaints
- 2 Structure 18% of all complaints
- 3 Engine 9% of all complaints
- 4 Engine and cooling 9% of all complaints
- 5 Fuel/propulsion system 9% of all complaints
- 6 Steering 9% of all complaints
- 7 Suspension 9% of all complaints
- 8 Visibility 9% of all complaints
- Electrical system: 3 complaints (27% of all).
- Structure: 2 complaints (18% of all).
- Engine: 1 complaints (9% of all).
- Engine and cooling: 1 complaints (9% of all).
- Fuel/propulsion system: 1 complaints (9% of all).
Symptoms owners describe
How many of the 11 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 3 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Wheels | 1 | 0 | 0 |
| Other | 3 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Truthfully, I'm not sure what I knew they stole from her and when they recovered it she was missing several parts and was hitting her chest
Rear window on driver side, cable snapped less than a year ago. It was raining heavy and I had to ride with the window down for 13 hours till I got home. Tonight, it's the 4th of july, took my kids to see fireworks.. Rolled the window down for them to watch, heard a pop.
Simultaneously these two light come on and off intermittently. Meaning they come on together, sometimes when I hit a speed bump and then they go out for sometimes 1 month or 4 months each time randomly. Always when the car is moving or in operation.
Water runs down the window to the dash board goes beyond the dash down through the firewall and in the glove box thru the glove box and drips onto the air compressor causing the part to break, thus causing the dash board and all the components to over heat because the fan does not work to cool the electrical circuit…
Loud tapping noise from the exhaust manifold bolts being broken in the engine block, which causes and exhaust smell even when standing on the outside of vehicle.
The contact was concerned of the possibility of a fire. The contact also stated that the engine was abnormally loud. The contact spoke with the dealer and was told to take the vehicle in to have the bolt and exhaust manifold replaced. The vehicle was not repaired. The failure and the current mileages were 105,000.
When I backed out of my garage and turn my wheel hard to the left to enter the steer from my drive way I hear a loud clicking noise. I took it to hummer and they said it will cost 1500 - 2000 dollars to repair out of pocket. They said it was a subframe support structure that was eroded.
The contact was driving approximately 35 mph when the vehicle stalled without warning. The vehicle was able to be driven to the dealer where it was inspected. The dealer informed the contact that the bearings on the fwd would need to be replaced. The bearings were replaced. The vin was unavailable.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 10,520 of 36,656 model years in the NHTSA data (top 29% most complained about).
On average one model year of the H2 has 40 complaints (8 years in the data). This year has 11, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Other years of this model
Questions and answers
What are the most common problems with the 2007 Hummer H2?
Owner complaints to NHTSA most often mention: electrical system, structure, engine. Total complaints: 11. The most frequent symptoms in complaint texts: smoke, burning smell, fire (18%), windows, sunroof (18%), A/C or heater (9%).
How many service bulletins (TSB) were issued for the 2007 Hummer H2?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2007 Hummer H2 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2007 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.