Total Complaints
6 filings
HUMMER H1 · model year
2003 HUMMER H1
6 NHTSA complaints, 1 crash report for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003HUMMERH1 carries 6 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 H1 is exterior lighting:headlights with 1 filings, followed by visibility:rearview mirrors/devices (1) and structure (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 2 investigation files overlapping the 2003 H1. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
6
Complaints
1
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| EXTERIOR LIGHTING:HEADLIGHTS | 1 |
| VISIBILITY:REARVIEW MIRRORS/DEVICES | 1 |
| STRUCTURE | 1 |
| ELECTRICAL SYSTEM:IGNITION | 1 |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT | 1 |
| TIRES | 1 |
Recent Complaints
20100414CrashTIRES
I HAD TAKEN MY 2003 H2 HUMMER TO HAVE THE FRONT END ALIGNED AND 2 NEW TIRES PLACED ON THE FRONT . I COMPLAINED TO THE TIRE DEALERSHIP THE MOMENT I HAD DRIVEN MY VEHICLE MAYBE 10 MILES OF IT NOT DRIVING RIGHT . I TOOK MY VEHICLE BACK TO THE DEALER 3 TIMES WITH COMPLAINTS OF IT NOT DRIVING RIGHT. THINKING MAYBE THEY DID NOT TIGHTENED SOMETHING BACK UP WHEN THEY DID THE ALIGNMENT . I HAD ONLY DRIVEN MY VEHICLE APPROX. 5 TIMES (4 TIMES TO THE DEALERSHIP WITH COMPLAINTS)AND THE 5TH TIME I DROVE IT . I WAS IN AN ACCIDENT IN WHEN THE VEHICLE PULLED TO THE RIGHT I LOST ALL CONTROL AND MY VEHICLE WAS TOTALED . IT IS MY UNDERSTANDING THAT NITTO GRAPPER HAS RECALLED TIRES AND THIS WAS THE BRAND OF TIRES THAT WAS PUT ON MY VEHICLE . THE RIGHT FRONT TIRE WAS FLAT AFTER THE CRASH AN THIS IS ONE OF THE REASON THE TIRES ARE BEING RECALLED . I BELIEVE IT WAS EITHER THE TIRES OR THE ALIGNMENT NOT PROPERLY BEING DONE THAT CAUSED MY CRASH . *TR
Mileage: 107,000
20040804SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT
ABS BRAKE FAULT LIGHT REPEATEDLY COMES ON. VEHICLE RETURNED TO DEALER (CERRITOS HUMMER) SEVEN (7) TIMES FOR REPAIR AND FAULT CONTINUES. *AK
Mileage: 100
20031217ELECTRICAL SYSTEM:IGNITION
WHILE DRIVING 55 MPH VEHICLE STALLED. VEHICLE WAS TOWED TO THE DEALER FOR ANALYSIS, BUT MECHANIC COULD NOT RESOLVE THE PROBLEM. *AK
20031105EXTERIOR LIGHTING:HEADLIGHTS
THE BRIGHTNESS OF HEAD LAMPS ON BOTH SPORTS UTILITY VEHICLES AND MANY FOREIGN AUTOS IS A CONTINUOUS HAZARD. EVEN WHEN I'VE MOVED THE REAR VIEW MIRROR TO NIGHT SHADE, THE OUTSIDE MIRRORS BLIND ME. LARGE VEHICLES AWASH THE INTERIOR OF MY CAR AS IF I WERE SITTING IN FRONT OF A LANDING AIRPLANE. I REALIZE BY THE TIME ANYTHING IS DONE ABOUT THIS, I'LL BE DEAD BUT THOUGHT I THROW MY COMPLAINT IN HERE, ESPECIALLY ABOUT HUMMERS. *LA
20031105VISIBILITY:REARVIEW MIRRORS/DEVICES
THE BRIGHTNESS OF HEAD LAMPS ON BOTH SPORTS UTILITY VEHICLES AND MANY FOREIGN AUTOS IS A CONTINUOUS HAZARD. EVEN WHEN I'VE MOVED THE REAR VIEW MIRROR TO NIGHT SHADE, THE OUTSIDE MIRRORS BLIND ME. LARGE VEHICLES AWASH THE INTERIOR OF MY CAR AS IF I WERE SITTING IN FRONT OF A LANDING AIRPLANE. I REALIZE BY THE TIME ANYTHING IS DONE ABOUT THIS, I'LL BE DEAD BUT THOUGHT I THROW MY COMPLAINT IN HERE, ESPECIALLY ABOUT HUMMERS. *LA
20031105STRUCTURE
THE BRIGHTNESS OF HEAD LAMPS ON BOTH SPORTS UTILITY VEHICLES AND MANY FOREIGN AUTOS IS A CONTINUOUS HAZARD. EVEN WHEN I'VE MOVED THE REAR VIEW MIRROR TO NIGHT SHADE, THE OUTSIDE MIRRORS BLIND ME. LARGE VEHICLES AWASH THE INTERIOR OF MY CAR AS IF I WERE SITTING IN FRONT OF A LANDING AIRPLANE. I REALIZE BY THE TIME ANYTHING IS DONE ABOUT THIS, I'LL BE DEAD BUT THOUGHT I THROW MY COMPLAINT IN HERE, ESPECIALLY ABOUT HUMMERS. *LA
Compare 2003HUMMERH1 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2003 HUMMER H1 have?▼
The 2003 HUMMER H1 has 6 NHTSA complaints, 1 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2003 HUMMER H1?▼
The most-complained component for the 2003 HUMMER H1 is EXTERIOR LIGHTING:HEADLIGHTS with 1 complaints. Other frequently reported areas include VISIBILITY:REARVIEW MIRRORS/DEVICES and STRUCTURE.
Is the 2003 HUMMER H1 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.