AI Damage2008 Hummer H2: common problems
Owners of the 2008 Hummer H2 filed 7 complaints with NHTSA, most often about electrical system and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 7
What fails most often
- 1 Electrical system 29% of all complaints
- 2 Powertrain 29% of all complaints
- 3 Visibility 29% of all complaints
- 4 Air bags 14% of all complaints
- 5 Fuel/propulsion system 14% of all complaints
- 6 Service brakes 14% of all complaints
- 7 Vehicle speed control 14% of all complaints
- Electrical system: 2 complaints (29% of all).
- Powertrain: 2 complaints (29% of all).
- Visibility: 2 complaints (29% of all).
- Air bags: 1 complaints (14% of all).
- Fuel/propulsion system: 1 complaints (14% of all).
Symptoms owners describe
How many of the 7 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 | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Visibility | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Vehicle speed control | 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.
The contact stated that the air bag warning light was illuminated on the instrument panel at start up. The next day, the vehicle failed to start up after multiple attempts and the air bag warning light remained illuminated on the instrument panel.
In the middle of an intersection after starting off, the vehicle lost power to the wheels. Drifted to side of road, but almost got hit by a truck and would have if the failure occurred 1 second earlier. Gm has redesigned the failure points of pump, tehcm and valves, failure occurs with no warning.
On january 2015 general motors published a bulletin no:14515b product safety recall about fuel pump flow control module. My vehicle started giving me trouble with this part on april 19, 2016 and I called gm and they said my vin number is not covered under this recall.
While the vehicle was parked, the heater/vent/air conditioner was turned on and failed to blow hot air. In addition, there was a burning odor present inside the vehicle. The contact received notification of nhtsa campaign number: 15v421000 (visibility); however, the part for the recall repair was not available.
The contact stated that the front drivers side and the rear drivers side power windows failed. The contact mentioned that when attempting to open the rear passenger window, the glass fell into the door panel.
Every couple of months on average, while driving very slow...usually 2-3 mph, the accelerator will surge the rpms up about 1,500. This requires you to immediately hit the brake aggressively. This usually happens when pulling into a parking slot.
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 12,539 of 36,659 model years in the NHTSA data (top 34% most complained about).
On average one model year of the H2 has 40 complaints (8 years in the data). This year has 7, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
Other years of this model
Questions and answers
What are the most common problems with the 2008 Hummer H2?
Owner complaints to NHTSA most often mention: electrical system, powertrain, visibility. Total complaints: 7. The most frequent symptoms in complaint texts: airbag warning light (14%), A/C or heater (14%), fuel system, fuel smell (14%).
How many service bulletins (TSB) were issued for the 2008 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 2008 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 2008 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 2026-11-06.