Before you buy
This 2004 Hummer H2 has 59 NHTSA complaints — top issue: Electrical Faults.
A model-year pattern isn't the car in front of you. Check this exact VIN for accidents, open recalls, odometer rollback, and salvage titles.
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HUMMER H2 2004 has 59 NHTSA complaints and 4 recalls. Top issues include electrical faults and brake system problems, each with 14 complaints. Crash-related complaints total 6. Source: NHTSA owner complaints and recall records.
- Make
- Hummer
- Model
- H2
- Model year
- 2004
- NHTSA owner complaints
- 59
- Crash-related complaints
- 6
- Safety recall campaigns
- 4
- Top reported component
- Electrical Faults
- Reliability signal
- Severe Issues
Common problems
Most common 2004 Hummer H2 problems
Top owner-reported complaint areas and where they often appear.
Electrical Faults
Brake System
Visibility
Complaint patterns center on Electrical Faults, Brake System, Visibility. Use these as a pre-purchase inspection guide, then verify recall and damage history on the specific VIN.
Buyer verdict
Should you buy a used 2004 Hummer H2?
The 2004 HUMMER H2 may be worth considering only if you are prepared for potential electrical and brake repairs. With low confidence in the data, proceed with caution and a thorough inspection.
Electrical and brake problems can lead to costly repairs and safety risks. Understanding these patterns helps you negotiate and plan for maintenance.
May Suit
This year may suit off-road enthusiasts who prioritize ruggedness and are willing to address common electrical and brake issues.
May Want to Avoid
Buyers seeking a reliable daily driver with low maintenance costs should avoid this year due to frequent complaints.
Pre-purchase
What to check before buying a used 2004 Hummer H2
Inspection Focus
- Inspect the electrical system for any faults or warning lights.
- Check brake components including pads, rotors, and hydraulic lines.
- Examine visibility components like windshield, wipers, and mirrors.
Before You Close the Deal
- Have a mechanic inspect the electrical system for faults.
- Verify all open recalls at nhtsa.gov/recalls.
- Request service records for brake and electrical repairs.
- Test drive to check brake performance and visibility.
Check the exact car
Shortlist with model-year data. Decide with the exact VIN.
Before buying a used 2004 Hummer H2, run a VIN history report to verify accidents, title brands, odometer records, theft checks, and open recalls for the exact vehicle.
AI verdict
What the complaint data suggests
Editorial interpretation of NHTSA public complaint data. Source: nhtsa.gov. Complaints are owner-submitted and do not confirm a defect. Methodology
Based on NHTSA complaint data, the 2004 HUMMER H2 shows 59 complaints and 4 recalls. Electrical faults and brake system issues each account for 14 complaints, making them the top concerns. Crash-related complaints total 6. Source: NHTSA owner complaints and recall records.
Year context: Only the 2004 model year was analyzed, so no direct comparison to other years is available.
Recall context: With 4 recalls, it is essential to verify that all recall repairs have been completed before purchase.
- Electrical faults and brake system each have 14 complaints, the highest counts.
- Visibility issues account for 10 complaints.
- Crash-related complaints total 6.
- Electrical faults (14 complaints)
- Brake system (14 complaints)
- Visibility (10 complaints)
Full breakdown
All 2004 Hummer H2 complaints by category
Every owner-reported complaint category filed with NHTSA for the 2004 Hummer H2. Use this as a pre-purchase inspection checklist.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 14 | — | 1 | — | |
| Brake System | 14 | 2 | 1 | — | |
| Visibility | 10 | 1 | — | — | |
| Hydraulic | 6 | 2 | — | — | |
| Steering Defects | 6 | 2 | — | — | |
| Engine Problems | 3 | — | — | — | |
| Suspension Failures | 3 | 1 | — | — | |
| Airbag Malfunctions | 3 | 1 | — | — | |
| Visibility/Wiper | 3 | — | — | — | |
| Structural Problems | 3 | 1 | — | — | |
| Electronic Stability Control (Esc) | 2 | — | — | — | |
| Transmission / Drivetrain | 2 | — | — | — | |
| Uncategorized Issues | 2 | — | — | — | |
| Seat Belt Issues | 1 | — | — | — | |
| Tire Issues | 1 | — | — | — | |
| Seat-Related Issues | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Wheel Issues | 1 | — | — | — | |
| Door Lock Issues | 1 | — | — | — | |
| Unintended Acceleration | 1 | — | — | — | |
| Equipment | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
In their words
Real owner complaints
Read what owners actually reported to NHTSA for the 2004 Hummer H2. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Odometer Fraud. The contact purchased a 2004 Hummer H2. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 200,000. It was later discovered that the mileage on the Title was 210,000. Ad…
Report states my vehicle has a recall on 2nd row seatbelts.
Yesterday I turned off the alarm and unlocked the doors via the keypad. I opened the driver door and my wife opened the passenger rear door and the Hummer H2 started. No key in the ignition and the fob does not have a start button. I then got in the car and inserted the key and …
The contact owns a 2004 Hummer H2.The contact stated while driving at 35MPH, the contact stated the vehicle loss of control and forward momentum to the vehicle which caused the vehicle stalled and loss motive power. The contact who is a mechanic inspected the vehicle and notice t…
TL* THE CONTACT OWNS A 2004 HUMMER H2. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKE PEDAL WAS DEPRESSED AND TRAVELED TO THE FLOORBOARD. THE STOPPING DISTANCE WAS EXTENDED. WHILE EXAMINING THE VEHICLE, THE CONTACT NOTICED BRAKE FLUID LEAKING UNDER THE SUBFRAME. THE VEHICLE WAS NO…
TL* THE CONTACT OWNS A 2004 HUMMER H2 EQUIPPED WITH AFTERMARKET NITTO MUD GRAPPLER EXTREME TIRES, SIZE: 37/13.5/20 (NA). THE TIRES WERE PURCHASED ON NOVEMBER 28, 2018. THE CONTACT STATED THAT THE TWO FRONT TIRES WERE WORN MORE THAN HALFWAY EVER SINCE THEY WERE PURCHASED. THE MANU…
WHOLE CLUSTER LIGHTS UP ON CAR DOOR LOCKS DON'T WORK RADIO WON'T GO OFF AIR BAG LIGHTS ON ALL BRAKE LIGHTS ON , THIS WAS GOING DOWN A CITY STREET DRIVING
I AM HAVING A PROBLEM WITH MY HUMMER 2004. THE LOCK LIGHT COMES ON AND MY HUMMER WILL NOT START. THIS IS SO HORRIBLE THE PROBLEM STARTED ABOUT 3 MONTHS AGO. EVERYTIME THAT LIGHT COMES ON I HAVE TO WAITE 15TO 25 MINUTES FOR IT TO START AGAIN.
RIGHT FRONT BRAKE HOSE RUBBING ON WHEEL AND CUTTING LOSS OF FLUID AND BRAKING EFFETENESS WAS MOVING IN DRIVEWAY WHEN IT POPPED THE MILEAGE IS 29236
BRAKES LINES UNDER VEHICLE HAVE EXCESSIVE CORROSION AND HAVE FINALLY CRACKED, RESULTING IN COMPLETE BRAKE FAILURE. EVENT DID NOT RESULT IN ACCIDENT. VEHICLE HAS NOT BEEN OPERATED IN A NORTHERN SNOW REGION NOR COASTAL AREA.
AS I WAS DRIVING ON I 5 IN OREGON I EXPERIENCED A COMPLETE FAILURE OF THE ELECTRICAL SYSTEM AND BRAKE SYSTEMS. THE VEHICLE WAS ON CRUISE CONTROL AND WHEN I DISENGAGED IT ALL OF THE SAFETY WARNING LIGHT APPEARED ON THE DASHBOARD. I PRESSED ON THE BRAKES AND THEY WERE A COMPLETE FA…
MY 2004 H2 HAS A SERIOUS RUSTING ISSUE WITH THE BRAKE LINES. ON 2 SEPARATE OCCASIONS I HAVE BEEN DRIVING ALONG AT APPROXIMATELY 30 MPG AND HIT THE BRAKES ONLY TO HAVE THEM GO ALL THE WAY TO THE FLOOR. LUCKILY I DID NOT AN ACCIDENT. IN BOTH OCCASIONS THE LINE BURST DUE TO RUST. MY…
I WAS DRIVING HOME AT NIGHT AND ABOUT A MILE BEFORE I GOT HOME MY TRANSMISSION DIDN'T SEEM TO SHIFT AS SMOOTH AS IT USUALLY DOES AND WHEN I PARKED IN MY GARAGE I GOT OUT AND TRANSMISSION FLUID WAS DRIPPING OUT FROM UNDER MY H2 VERY QUICKLY AND BY THE NEXT HOUR IT HAD EVERY BIT RU…
I HAVE A 2004 HUMMER H2, THE ENTIRE INSTRUMENT PANEL MALFUNCTIONS.. FUEL GAUGE, SPEEDOMETER, OIL GAUGES .KEYLESS ENTRY WILL NOT WORK,ETC. REDUCED ENGINE POWER MESSAGE APPEARS AND VEHICLE AUTOMATICALLY SLOWLY REDUCING SPEED TO 15 MILES PER HR WHILE DRIVING AT HIGH SPEED. AIR BAG L…
CHECK SYSTEM OUT AND SENSING MODULE THAT CONTROLS THE INFLATABLE RESTRAINTS HAS INTERNAL FAILURE AND WILL NOT COMMUNICATE. THE SDM NEEDS REPLACED
GM IS RECALLING 13,358 MY 2003 HUMMER H2 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH WATER CAN ENTER THE WINDSHIELD WIPER MOTOR MODULE. IF A SUFFICIENT AMOUNT OF WATER ENTERS THE MODULE, OVER TIME, THE FRONT WINDSHIELD WIPERS MAY WORK INTERMITTENTLY OR THEY MAY BEC…
I WAS PULLING OUT OF MY DRIVEWAY IN MY HUMMER H2 WHEN THE BRAKE PEDAL WENT TO THE FLOOR. I GOT OUT OF MY H2 AND NOTICED A LARGE AMOUNT OF BRAKE FLUID RUNNING OUT FROM UNDER THE REAR END NEAR THE LEFT REAR WHEEL. I LOOKED UNDER THE VEHICLE AND NOTICED A BRAKE LINE WAS RUSTED IN TW…
I FEEL THAT THIS KEY PROBLEM FALLING OUT OF THE IGNITION, KEY WILL NOT TURN ON OR OFF MAKING IT HARD TO CONTROL WHEN THE KEY IS IN THE IGNITION AND CAUSING IT NOT TO START. I HAD THIS SAME PROBLEM ON A 2003 ISUZU ASCENDER. ALSO THE "DRIVER INFORMATION CENTER" HAS QUIT WORKING RIG…
I WAS TRAVELING ON NJ TURNPIKE WHEN MY BRAKES DIDN'T FEEL RIGHT. ALMOST NO BRAKES STEPPING TO FLOOR. THEN BRAKE FAILURE LIGHT CAME ON. THIS IS A GARAGE KEPT VEHICLE WITH APPROX 14000 ORIGINAL MILES. APPEARS BRAKE LINES ARE CORRODED. ONE OWNER. HOW COULD THIS HAPPEN. IS THERE A RE…
TL* THE CONTACT OWNS A 2004 HUMMER H2. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE BRAKE PEDAL FAILED TO RESPOND WHEN DEPRESSED REPEATEDLY. THE VEHICLE WAS DRIVEN UPHILL IN COMBINATION OF THE EMERGENCY BRAKE BEING ENGAGED IN AN ATTEMPT TO STOP THE VEHICLE. TH…
Source: NHTSA Complaints Database. Real owner reports for the 2004 Hummer H2.
Safety recalls
2004 Hummer H2 recalls
4 campaignsNHTSA recall campaigns for the 2004 Hummer H2. With 4 recalls, it is essential to verify that all recall repairs have been completed before purchase. Recalls are free to fix at authorized dealers, but completion status must be verified on the exact VIN.
SERVICE BRAKES, HYDRAULIC
SEAT BELTS:REAR/OTHER
STEERING
SERVICE BRAKES, HYDRAULIC
Research more
Keep researching before you buy
Compare brands and categories, then check the exact car's history by VIN.
Questions
2004 Hummer H2 buying FAQ
Buyer-focused answers based on real NHTSA complaint and recall data for this model year.
Is the 2004 Hummer H2 reliable?▾
Severe Issues. NHTSA currently shows 59 owner complaints, 6 crash-related complaints, and 4 recall campaigns for this model year. The 2004 HUMMER H2 may be worth considering only if you are prepared for potential electrical and brake repairs. With low confidence in the data, proceed with caution and a thorough inspection. Treat this as a model-year signal, then verify the exact vehicle's condition and history before purchase.
What are the most common problems with the 2004 Hummer H2?▾
#1: Electrical Faults (14 complaints). #2: Brake System (14 complaints). #3: Visibility (10 complaints)
At what mileage do problems start on the 2004 Hummer H2?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2004 Hummer H2?▾
Complaint data is not the same as crash-test scoring, but it does highlight possible risk patterns. For the 2004 Hummer H2, NHTSA complaints include 6 crash-related reports and 1 fire reports out of 59 total complaints. 5 injury reports are also on file. For controlled crash-test ratings, check nhtsa.gov/ratings.
Does the 2004 Hummer H2 have any recalls?▾
Yes. 4 NHTSA recall campaigns affect the 2004 Hummer H2. A major recall area is SERVICE BRAKES, HYDRAULIC. With 4 recalls, it is essential to verify that all recall repairs have been completed before purchase. Always verify open recalls by VIN because completion status varies by vehicle.
Should I buy a 2004 Hummer H2?▾
The 2004 HUMMER H2 may be worth considering only if you are prepared for potential electrical and brake repairs. With low confidence in the data, proceed with caution and a thorough inspection. Electrical and brake problems can lead to costly repairs and safety risks. Understanding these patterns helps you negotiate and plan for maintenance. Pay extra attention to Electrical Faults during inspection. Before committing, run a VIN history report to verify accidents, title brands, odometer records, and recall completion for the exact car.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpectorAI.
Wider context: See the full Hummer H2 reliability report with year-by-year comparison.
Owner Reliability Rating
Rate the 2004 Hummer H2 based on your ownership experience.
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Ratings are based on owner experience and are separate from NHTSA data shown above.
Before you buy
Check the exact vehicle history before you buy
Model-year complaints and recalls reveal patterns. A VIN report confirms whether the exact car has accident history, title brands, mileage issues, or open recalls.