Brands · No brand score

Hummer.

Every Hummer model we track: 2 with a Lemon Index.

Best Hummer H2 75 · Worst Hummer H3 92

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Every Hummer, ranked. Lower is better. 100 is the average car.

H275H392

Each score covers that model's own model years. Hummer wasn't one of the 22 brands in our 2010–2022 study, so it has no brand score.

Most reliable Hummer

H2.

about three-quarters as many complaints as the average car.

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75

Least reliable Hummer

H3.

about average.

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92

The Lemon Index counts owner complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model years (100 = average, lower is better). It measures complaints, not crash safety. How it works · Every brand