AI Damage2009 Hummer H3 SUT: common problems
Owners of the 2009 Hummer H3 SUT filed 11 complaints with NHTSA, most often about air bags and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 11
What fails most often
- 1 Air bags 45% of all complaints
- 2 Electrical system 36% of all complaints
- 3 Child seat 9% of all complaints
- 4 Engine 9% of all complaints
- 5 Visibility 9% of all complaints
- Air bags: 5 complaints (45% of all).
- Electrical system: 4 complaints (36% of all).
- Child seat: 1 complaints (9% of all).
- Engine: 1 complaints (9% of all).
- Visibility: 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) |
|---|---|---|---|
| Air bags | 5 | 0 | 0 |
| Electrical system | 4 | 0 | 0 |
| Child seat | 1 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Other | 1 | 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.
I own a 2009 hummer h3t that had a recall for a blower resistor and harness assembly defect that could catch fire. I have had the same harness and resistor replaced twice now for the same reason of melting. I have contacted general motors about this issue and they have not been very helpful in resolving this problem.
Tl* the contact owns a 2009 hummer h3t. The contact stated that while driving at 30 mph, the side curtain air bags deployed, blowing debris into the sight of the contact. The contact was not involved in a crash that would cause the air bags to deploy. The vehicle was not diagnosed or repaired.
Tl* the contact owns a 2009 hummer h3t. The contact received notification of nhtsa campaign number: 15v421000 (visibility) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair.
I noticed the blower motor was hot and melting.fortunately there was only smoke and no fire. I turned off the a/c blower (which was now not working) and took it to my local a/c repair station for an estimate.
I drove over a pothole going 15mph and my rollover airbags deployed. All 4 wheels were on the ground and there was no rollover. The vehicle never broke 5 degrees from upright. This happened on rampart range road in woodland park, co.
One day when I went to turn on the air conditioner, the ac wouldn't come on. When I turned the control knob to 4, I could hear a clicking under the glove box. On certain days the blower motor would work and sometimes it would quit randomly while operating.
Entire system went into crash mode and fired seat belt tensioners, and shut down fuel. Had 2 passengers in vehicle, all were uninjured. Was forced to cut airbags off ceiling to see out, and drive vehicle to closest garage.
Tl contact owns a 2009 hummer h3t. The contact owns a 2008 evenflo discovery child seat, model number 5391855a, manufactured on 3/25/08. The contact observed when the child was properly secured rearfacing in an "infant" child restraint seat; the plastic shield attachment broke.
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).
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
Questions and answers
What are the most common problems with the 2009 Hummer H3 SUT?
Owner complaints to NHTSA most often mention: air bags, electrical system, child seat. Total complaints: 11. The most frequent symptoms in complaint texts: A/C or heater (18%), smoke, burning smell, fire (18%), seat belts (9%).
How many service bulletins (TSB) were issued for the 2009 Hummer H3 SUT?
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 2009 Hummer H3 SUT 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 2009 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.