M MILEMARK Brands Repair costs Guides

Hummer H3

2008 only

138 classified complaints 2 recalls

2008 Hummer H3 have 138 classified complaints on record for that year specifically, plus 2 recalls. The most common issue in this year is Body control and other modules, typically surfacing around 83,000 miles.

Computed directly from stored federal records for 2008 model years only — not blended with the rest of this vehicle's production run. See the full Hummer H3 report for every year combined.

Where this year fits

2006

2007

2008

2009

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2008 only

Body control and other modules · Electrical 25 complaints

Median onset: 83,000 miles.

Airbags, seatbelts and restraints · Body and interior 19 complaints

Median onset: 68,700 miles. 26.3% of these reported an injury, a death, or a crash with fire.

More common in newer model years.

Cooling system: radiator, water pump, thermostat, fan · Engine 14 complaints

Median onset: 65,355 miles.

More common in older model years. · Typical repair: $260–$1,910 nationally.

Blower motor and blend-door actuators · Heating and A/C 14 complaints

Median onset: 85,678 miles.

Typical repair: $150–$460 nationally.

Wiring harness, grounds and connectors · Electrical 13 complaints

Median onset: 82,926 miles.

Sunroof and panoramic roof · Body and interior 7 complaints

Median onset: 42,000 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years. · Typical repair: $330–$620 nationally.

Doors, windows, latches, seats and trim · Body and interior 7 complaints

Median onset: 49,600 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years.

Battery, alternator and charging · Electrical 5 complaints

Median onset: 80,000 miles.

Typical repair: $250–$1,030 nationally.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2008 model year. See the full Hummer H3 report for every year and full specs/safety data.