What are the most common Hummer H2 problems?

Across 6 model years analyzed, the most-reported issues are: Electrical System, Air Suspension System. Details on each — including affected years and repair-cost ranges — are listed below.

Is the Hummer H2 a reliable car?

Hummer H2 averages a 72/100 OwnerKeep KeepScore across 6 years of data. Year-by-year scores vary — check the full model hub for the year you're shopping.

Which years of the Hummer H2 have the worst problems?

The lowest-scoring Hummer H2 years are flagged on our Years to Avoid page. They typically combine multiple recurring failures (transmission, engine, electrical) with weak owner sentiment.

How much do common Hummer H2 repairs cost?

Repair-cost ranges depend on the specific issue. Major systems like transmissions can run $2,500-$5,500, while infotainment or sensor replacements are $150-$600. Each problem listed below includes a cost estimate.

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Issue Pattern Analysis

Hummer H2 Common Problems

We analyzed every Hummer H2 reliability report across 6 model years (avg score 72/100) — here are the issues that keep showing up.

Most-Reported H2 Issues

Ranked by how often this issue appears in our Hummer H2 year-by-year reports.

Electrical System

Affects 83% of years

Reported across 5 Hummer H2 model years analyzed. Pull the full reliability report for a specific year to see exact symptoms, mileage ranges, and repair-cost estimates.

Air Suspension System

Affects 50% of years

Reported across 3 Hummer H2 model years analyzed. Pull the full reliability report for a specific year to see exact symptoms, mileage ranges, and repair-cost estimates.

Problems by Model Year

2003 Hummer H268/100

A truly unique brute, but its high demands and specific weak points necessitate cautious ownership.

2004 Hummer H268/100

An iconic off-roader with a solid powertrain, but be prepared for substantial running costs and common age-related failures, especially in its complex systems.

2005 Hummer H268/100

A mechanically solid but electrically problematic and costly behemoth, requiring careful consideration and a healthy budget.

2006 Hummer H268/100

A mechanically strong but maintenance-intensive truck that commands attention and a premium for its unique ownership experience.

2007 Hummer H272/100

A mechanically strong, iconic SUV plagued by electrical issues and high running costs.

2008 Hummer H285/100

A mechanically strong, albeit thirsty, behemoth that offers immense presence with predictable but costly upkeep.

Don't buy on guesswork

Get the full Hummer H2 risk report

Common-problem patterns above are aggregate. For the specific year you're shopping, the paid report breaks down: exact mileage failure windows, repair-cost ranges, recall status, and a buy/avoid verdict.

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