Hummer H3
Registered from 2006 to 2011.

About this model
The Hummer H3 is an off-road vehicle that was produced by General Motors and marketed by Hummer from 2005 to 2010. The smallest model of the Hummer lineup, it was offered as a 5-door SUV or a 4-door pickup truck known as the H3T. Unlike the larger H1 and H2 models, the H3 was not developed by AM General. It was introduced for the 2006 model year, based on a modified GMT355 that underpinned the Chevrolet Colorado/GMC Canyon compact pickup trucks that were also built at GM's Shreveport Operations in Shreveport, Louisiana, and the Port Elizabeth plant in South Africa. While mechanically related to the Colorado and Canyon, GM claims they share only 10% of their components, with the chassis modified and reinforced for heavy off-road duties.
From the Wikipedia article Hummer H3, licensed under CC BY-SA 4.0.
Crash test
| Rollover | ★★★☆☆ |
| Stability control | Standard |
| Forward collision warning | No |
| Lane departure warning | No |
Crash-tested by NHTSA, the American road safety agency.
Specification
| Year | Measured |
|---|---|
| 2010 | 2206 kg · 2840 mm wheelbase · 15.7 L/100km (EPA) · 16.8 L/100km city · 13.1 motorway · Suv, 4-door |
| 2009 | 2206 kg · 2840 mm wheelbase · 14.7 L/100km (EPA) · 16.8 L/100km city · 13.1 motorway · Suv, 4-door |
| 2008 | 2206 kg · 2840 mm wheelbase · 15.7 L/100km (EPA) · 18.1 L/100km city · 13.1 motorway · Suv, 4-door |
| 2007 | 2132 kg · 2840 mm wheelbase · 15.7 L/100km (EPA) · 16.8 L/100km city · 13.1 motorway · Suv, 4-door |
| 2006 | 2132 kg · 2840 mm wheelbase · 14.7 L/100km (EPA) · 16.8 L/100km city · 13.1 motorway · Suv, 4-door |
What the maker told its dealers
Service bulletins are the manufacturer's own repair guidance to dealers, filed with NHTSA. A bulletin is not a defect finding; the count rises with how many things a maker writes down, not only with how many go wrong.
Hummer filed 1065 bulletins about the 2010 H3.
- Equipment: 403
- Electrical system: 161
- Engine and engine cooling: 108
- Equipment adaptive/mobility: 64
- Power train: 61
- Engine: 40
- Visibility: 34
- Wheels: 30
- Fuel system, gasoline: 26
- Suspension: 22
- Other: 116
- This preliminary information communicates information about how to determine if a wheel and tires size change is available. · April 2026
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect. · March 2026
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. · March 2026
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. · January 2026
- This service bulletin provides information on Tire Sidewall Irregularities. · December 2025
- This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. · December 2025
- This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit… · November 2025
- The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal… · October 2025
1057 more.
Grouped by NHTSA's top-level system; a bulletin filed under a sub-heading counts toward its system.