2003 Hummer H3 Problems
Below Average Complaints
Real NHTSA owner complaints for the 2003 Hummer H3.
Complaints
4
Crashes
0
Fires
0
Injuries
0
Fatalities
—
Recalls
0
Worst 2003 Hummer H3 Problems
Top 3 most-reported issues with average mileage at failure.
#12 complaints
ELECTRICAL SYSTEM
Avg mileage:75,032 mi
#21 complaints
VEHICLE SPEED CONTROL
Avg mileage:150,000 mi
#31 complaints
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
Avg mileage:64 mi
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All Problems by Category
Every NHTSA complaint category for the 2003 Hummer H3.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| ELECTRICAL SYSTEM | 2 | — | — | 75,032 mi | |
| VEHICLE SPEED CONTROL | 1 | — | — | 150,000 mi | |
| VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM | 1 | — | — | 64 mi |
ELECTRICAL SYSTEM
2
complaints
Crashes
—
Fires
—
Avg Miles
75,032
VEHICLE SPEED CONTROL
1
complaints
Crashes
—
Fires
—
Avg Miles
150,000
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
1
complaints
Crashes
—
Fires
—
Avg Miles
64
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2003 Hummer H3. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Other Hummer H3 Years
Wider context: See the full Hummer H3 reliability report with year-by-year comparison and generation analysis.
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Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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