Model Year Comparison
- Worst Model Year
- Worst Category
- fuel system Problems
We don't have a lot of complaints on file for the Hummer H1 — feel free to add yours here. Probably because it's so old, no one bothers to post complaints anymore.
The 2002 Hummer H1 has the most overall complaints, & we also rate 2002 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 2002 Hummer H1 for vehicle died on the highway.