Hummer H3 Problems

Find the most common issues based on car owner complaints

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Most Common Hummer H3 Problems

The engine may develop a misfire due to worn valve seats.
A loose or worn gas cap may cause check engine light to illuminate.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
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1 Known Hummer H3 Drive Train Problem

1 Known Hummer H3 Electrical & Lights Problem

3 Known Hummer H3 Engine Problems

1 Known Hummer H3 Exhaust & Emissions Problem

3 Known Hummer H3 Maintenance Problems

9 Known Hummer H3 Problems

Years to Avoid
Based on owner-submitted report and recall notices, Hummer H3 years 2008, 2009, and 2007 are the most likely to experience problems.
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