Model Year Comparison
- Worst Model Year
- Worst Category
- engine Problems
Here are total complaints by model year for the Hummer H3. Overall the worst problem category is Hummer H3 engine problems.
The 2006 Hummer H3 has the most overall complaints, & we also rate 2006 as the worst model year ranked on several factors such as repair cost & average mileage when problems occur. The most-reported problem is also with the 2006 Hummer H3 for passlock light on preventing engine to start.