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Ratings on over 1,000 new & used models going back 5 years, from the Center from Auto Safety. Learn more about The Car Book 2018 here.

Hummer H3  problems

Hummer H3

cooling system Problems

We don't have a lot of Hummer H3 cooling system problems on file — feel free to add yours here. The most common H3 cooling system problems cost $600 to fix & occur at 70,000 miles.

The worst model years for cooling system problems are the 2008 H3, 2007 H3, and the 2006 H3.

Click on the graph bars for more details about cooling system problems for a specific model year.

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Worst Hummer H3 Cooling System Problems

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