Hummer H3T

Model Year Comparison

Worst Model Year
2009
Worst Complaint
transmission fluid mixing with engine coolant

We don't have a lot of complaints on file for the Hummer H3T — feel free to add yours here. It's either not very popular ... or it's very, very good.

The 2009 Hummer H3T has the most overall complaints, & the most-reported problem is also with the 2009 H3T for transmission fluid mixing with engine coolant.

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

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Worst Reported Problems with the H3T

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