Hummer H2 ReliabilityAll Years Ranked (2003–2008)
Side-by-side reliability scores, risk levels, and owner-cost projections for every Hummer H2 we've analyzed. Identify the best years to buy, the ones to avoid, and the problems that follow the H2 across generations.
Average Score
72/100
Best Year
2008 Hummer H2
Score 85
Weakest Year
2003 Hummer H2
Score 68
Every Hummer H2 Ranked
Sorted by reliability score. Each link opens the full year-specific report.
A mechanically strong, albeit thirsty, behemoth that offers immense presence with predictable but costly upkeep.
Top risks: Rear Air Suspension · Electrical System · Front End Wear Items
A mechanically strong, iconic SUV plagued by electrical issues and high running costs.
Top risks: Electrical System · Air Suspension System · Fuel System
A truly unique brute, but its high demands and specific weak points necessitate cautious ownership.
Top risks: Transmission · Electrical System · Air Suspension (if equipped)
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.
Top risks: Air Suspension System · Electrical System · HVAC System
A mechanically solid but electrically problematic and costly behemoth, requiring careful consideration and a healthy budget.
Top risks: Electrical System · Air Suspension System · Power Steering System
A mechanically strong but maintenance-intensive truck that commands attention and a premium for its unique ownership experience.
Top risks: Air Suspension System (if equipped) · Transmission (4L65E) · Steering & Suspension Components
Problems That Follow the H2 Across Generations
Issues that appear in the top-3 risks across multiple model years — the cost of ownership you can actually predict.
Electrical System
Appears in 5 model years · 83% of generations
Air Suspension System
Appears in 3 model years · 50% of generations