2007 Hummer H3 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
237 owner complaints analyzed
2 distinct recall campaigns
84,909 mi median reported failure mileage
Scope: 2007 model year. Data snapshot: . 192 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 69 of 237 complaints (29.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 33 | 13.9% |
| Braking behavior | 18 | 7.6% |
| Engine operation | 15 | 6.3% |
| Transmission and shifting | 10 | 4.2% |
| Steering behavior | 10 | 4.2% |
| Fuel system concerns | 3 | 1.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 69 |
| Engine | 44 |
| Unknown Or Other | 25 |
| Visibility/Wiper | 24 |
| Power Train | 16 |
| Air Bags | 15 |
| Electronic Stability Control (Esc) | 12 |
| Structure:Body | 12 |
Electrical System: 69; Engine: 44; Unknown Or Other: 25; Visibility/Wiper: 24; Power Train: 16; Air Bags: 15; Electronic Stability Control (Esc): 12; Structure:Body: 12
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 18 |
| 25,000 to 49,999 | 23 |
| 50,000 to 74,999 | 46 |
| 75,000 to 99,999 | 30 |
| 100,000 to 149,999 | 59 |
| 150,000 and above | 16 |
Under 25,000: 18; 25,000 to 49,999: 23; 50,000 to 74,999: 46; 75,000 to 99,999: 30; 100,000 to 149,999: 59; 150,000 and above: 16
100,000 to 149,999 miles has the most reports with usable mileage (59). 45 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2007 | 7 |
| 2008 | 4 |
| 2009 | 11 |
| 2010 | 6 |
| 2011 | 6 |
| 2012 | 13 |
| 2013 | 12 |
| 2014 | 29 |
| 2015 | 48 |
| 2016 | 38 |
| 2017 | 18 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
2007: 7; 2008: 4; 2009: 11; 2010: 6; 2011: 6; 2012: 13; 2013: 12; 2014: 29; 2015: 48; 2016: 38; 2017: 18; 2018: 13; 2019: 12; 2020: 5; 2021: 8; 2022: 3; 2023: 1; 2024: 1; 2025: 1; 2026: 1
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 33 complaint narratives. Braking behavior appears in 18 complaint narratives. Engine operation appears in 15 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10268826 · 2009-05-15 (May 15, 2009)
BATTERY DISCHARGES SELF. HAS BEEN IN THE SHOP OVER 6 WEEKS. NOBODY KNOWS WHAT IS WRONG WITH IT. BEFORE THAT 2 TIME IT STOPPED SUDDENLY WHILE DRIVING 25 TO 50 MILES PER HOUR. *TR
Owner-reported narrative. 15,000 miles reported. Look up ODI 10268826 at NHTSA ↗
Owner report 10276877 · 2009-07-15 (July 15, 2009)
TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT WAS NOTIFIED THAT HIS VEHICLE CAUGHT FIRE WHILE PARKED IN THE GARAGE. THE FIRE ORIGINATED UNDER THE HOOD NEAR THE BATTERY AREA. THE VEHICLE WAS DESTROYED. THE FIRE DEPARTMENT FILED INCIDENT NUMBER 09060410 AND THE MANUFACTURER FILED CASE NUMBER 71-731425623, REFERENCE NUMBER 6744389. THE FAILURE AND CURRENT MILEAGES WERE 33,184.
Owner-reported narrative. 33,184 miles reported. Look up ODI 10276877 at NHTSA ↗
Owner report 10185860 · 2007-03-21 (March 21, 2007)
TL*- THE CONTACT OWNS A 2007 HUMMER H3 STATED THAT BETWEEN THE GAS PEDAL AND BRAKE THERE IS NOT ENOUGH ROOM FOR HIM TO NAVIGATE THE TWO PEDALS BECAUSE WHEN HE PUT HIS FOOT ON THE GAS PEDAL IT CAUGHT THE BRAKE PEDAL AND IT CAUSES HIM DIFFICULTY IN OPERATE THE VEHICLE PROPERLY. THE CURRENT AND FAILURE MILEAGE WERE BOTH 6,000 MILES.
Owner-reported narrative. 6,000 miles reported. Look up ODI 10185860 at NHTSA ↗
Owner report 10199788 · 2007-08-16 (August 16, 2007)
TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACTS HUSBAND STATED THAT THE DISTANCE BETWEEN THE BRAKE AND ACCELERATOR PEDALS IS TOO NARROW AND HIS SHOES GET STUCK IN THE SPACE. THE CONTACT SPOKE WITH THE DEALER AND THEY STATED THAT THEY WERE AWARE OF THE FAILURE. THE CURRENT MILEAGE WAS 200 AND FAILURE MILEAGE WAS 149. UPDATED 02-01-08 *BF THE CONSUMER STATED SHE HAS LOCATED THE DEFECT. THE CONSUMER STATED THE DEFECT WAS THE CARPET THAT WAS INTERFERING WITH THE BRAKE, SO PROBLEM SOLVED. UPDATED 02/01/08 *TR
Owner-reported narrative. 149 miles reported. Look up ODI 10199788 at NHTSA ↗
Owner report 10448482 · 2012-02-19 (February 19, 2012)
EVER SINCE I PURCHASED THIS VEHICLE, THE VEHICLE HAS STALLED AT BETWEEN 25MPH AND 0. I WORK FOR THE US CENSUS BUREAU, PERMANENT WORKER AND I TRAVEL THROUGH ALL TYPES OF WEATHER CONDITIONS IN A DAY, FROM 9,000 FT MOUNTAINS COVERED IN SNOW TO DESERT GRAVEL ROADS, MESAS, CLIFFS. OVER THE PAST TWO YEARS THE VEHICLE HAS SHUT OFF WHILE TRAVERSING MOUNTAIN ROADS COVERED IN SNOW WITH NO GUARD RAILS, AND THREE TIMES, WHEN THE ENGINE SHUT OFF, I LOST STEERING AND CAME WITHIN INCHES OF GOING OFF THE SIDE (CLIFFS) OF THESE ROADS, NOT TO MENTION IN TOWN…
Owner-reported narrative. 35,000 miles reported. Look up ODI 10448482 at NHTSA ↗
Owner report 10454939 · 2012-04-12 (April 12, 2012)
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 20 MPH, THE ENGINE STALLED WITHOUT WARNING AND RESTARTED. THE FAILURE OCCURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSIS AND THEY WERE UNABLE TO DUPLICATE OR DETERMINE THE CAUSE OF FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.
Owner-reported narrative. 70,000 miles reported. Look up ODI 10454939 at NHTSA ↗
Owner report 10258421 · 2009-02-11 (February 11, 2009)
I HAVE A H3 2007 HUMMER, AND I AM HAVING TROUBLE SHIFTING, SO, I TOOK THE TRUCK TO THE DEALER FOUR TIMES AND THEY SAID THAT IS A NORMAL CONDITION. *TR
Owner-reported narrative. 7,500 miles reported. Look up ODI 10258421 at NHTSA ↗
Owner report 10494952 · 2013-01-28 (January 28, 2013)
THIS VEHICLE HAS HAD TRANSMISSION ISSUES SINCE 25,000 MILES. NO CODE EVER INDICATED SO DEALERS WOULD NOT INVESTIGATE TRANSMISSION UNTIL 1ST AND 2ND GEARS FAILED. PROBLEM OF INCORRECT SHIFTING CONTINUED WITH SEVERAL STOPS AT THE DEALERSHIP. NO CODE NO SERVICE. NOW THE TRANSMISSION SLAMMED IN REVERSE INITIATING A CODE (SPEED SENSOR PASS/FAIL). AFTER AGREEING TO REPLACE THE PORTION OF THE TRANSMISSION THAT CONTAINS THE SHORTED SPEED SENSOR, IT WAS DISCOVERED THE TRANSMISSION WAS CONTAMINATED BY RADIATOR FLUID. NOW THE RADIATOR, NOT COVERED BY WARR…
Owner-reported narrative. 25,000 miles reported. Look up ODI 10494952 at NHTSA ↗
Owner report 10255222 · 2009-01-15 (January 15, 2009)
ON NOVEMBER 2, 2008 AT APPROXIMATELY 9:30 PM, I WAS PULLING INTO A PARKING SPACE AT THE LOCAL WAL-MART AND AS I TURNED RIGHT TO GET INTO THE SPACE I HEARD A LOUD BANG PROCEEDED WITH MY HUMMER H3 ABRUPTLY STOPPING. I DIDN'T KNOW WHAT HAD ACTUALLY HAPPENED AT THAT EXACT TIME AS I WAS MORE CONCERNED WITH THE SAFETY OF MY 11 YR OLD BROTHER. I CALLED ON STAR EMERGENCY SERVICES AND TOLD THEM I COULD NOT MOVE MY CAR AND WAS NOT FULLY AWARE OF WHAT HAD HAPPENED. THE WAL-MART SECURITY GUARD THAT WITNESSED THE ENTIRE INCIDENT, RUSHED TO THE VEHICLE TO C…
Owner-reported narrative. 20,800 miles reported. Look up ODI 10255222 at NHTSA ↗
Owner report 10296708 · 2009-12-22 (December 22, 2009)
TL* THE CONTACT OWNS A 2007 HUMMER H3. HIS REAR BRAKE DRUM CAUGHT ON FIRE . THE REAR BRAKE DRUM WAS LOCATED UNDER THE FUEL TANK. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. HE WAS ADVISED THEY WOULD NOT REPAIR THE VEHICLE UNDER WARRANTY BECAUSE HE MADE HIS TIRES SPIN TOO MUCH IN THE SNOW. HOWEVER WHILE IN SNOW HIS VEHICLE BECAME STUCK AND HE WAS TRYING TO GET OUT. GENERAL MOTORS WAS ALSO CONTACTED AND STATED THEY REVIEWED HIS CLAIM BUT WOULD NOT COVER THE REPAIR. THE FAILURE MILEAGE WAS 31,000. THE VIN WAS UNKNOWN.
Owner-reported narrative. 31,000 miles reported. Look up ODI 10296708 at NHTSA ↗
Owner report 10808871 · 2015-12-07 (December 7, 2015)
REBUILT TRANSMISSION TWICE CLEANED THROTTLE BODY REPLACED EXHAUST MANIFOLD TWO O2 SENSORS REPLACED THE RADIATOR THE HEATER CORE A FUEL PUMP RELAY AND THIS ENGINE LIGHT STILL WILL NOT TURN OFF IT SAYS TORQUE CONVERTER CLUTCH SOLENOID I'M DISGUSTED ALREADY GM FIX UR [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Owner-reported narrative. 94,000 miles reported. Look up ODI 10808871 at NHTSA ↗