Worst years for a Hummer H3
Owners have filed 1,064 complaints about the Hummer H3 with NHTSA across model years 2003 to 2010. More of them are about the electrical system than anything else.
Every Hummer H3 year, graded
The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.
What breaks on a Hummer H3
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2006
Worst in 2007
Worst in 2006
Exactly what failed on a Hummer H3
The named sub-assemblies behind those complaints, across every model year.
Complaints filed over time
Every complaint about every Hummer H3, by the month it reached NHTSA.
Hummer H3 problems by state
Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.
Compare the Hummer H3
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.