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2007
H3
Problems
Engine (36%)
Transmission and Drivetrain (21%)
Brakes and Traction Control (5%)
Suspension and Steering (12%)
Electrical and Air Conditioning (19%)
Paint, Rust, Leaks, Rattles, and Trim (6%)
Other (1%)
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242-horsepower 3.7L I5 4-speed automatic AWD w/low range
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See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2007 Hummer H3 problems occur, check out our car reliability stats.