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2007 Hummer H3

Owner reports · Recalls · Investigations

More warning signs than most H3 years

Owner complaints for the 2007 Hummer H3 are substantially higher than the model-year median of 91.

About this comparison →

When problems were reported

Mileage at the reported incident

192 reports with mileage · 45 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 76 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 44 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Visibility/wiper. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

12 crash reports18 fire reports13 injury reports

Electrical System complaints

76 reports
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60,000 miles · Jul 20, 2012
Electrical System

TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT THE AIR CONDITIONING UNIT FAN FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE FAILURE WAS LOCATED AT THE WIRING HARNESS. THE VEHICLE WAS REPAIRED. THE CONTACT STATED THAT HE OWNED A SECOND 2007 HUMMER AND THE FAN WIRING HARNESS FAILURE WAS EXPERIENCED ON THE OT…

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TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT THE AIR CONDITIONING UNIT FAN FAILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE FAILURE WAS LOCATED AT THE WIRING HARNESS. THE VEHICLE WAS REPAIRED. THE CONTACT STATED THAT HE OWNED A SECOND 2007 HUMMER AND THE FAN WIRING HARNESS FAILURE WAS EXPERIENCED ON THE OTHER VEHICLE AS WELL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE AND THE CURRENT MILEAGE WAS 60,000.

NHTSA ODI #10466743

40,000 miles · May 22, 2012
Electrical SystemUnknown Or Other

MY VEHICLE HAS A VERY COMMON ISSUE WITH A FAULTY RESISTOR/WIRING HARNESS ON THE BLOWER MOTOR. THERE IS A SAFETY RECALL FOR THE SAME PROBLEM ON OTHER GM TRUCKS & VEHICLES AND THE PROBLEM IS WIDELY KNOWN/REPORTED ON THE INTERNET. FOR SOME REASON GM REFUSES TO ISSUE/FIX THIS RECALL FOR THE HUMMER H3? THE PROBLEM CAUSES THE WIRIN…

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MY VEHICLE HAS A VERY COMMON ISSUE WITH A FAULTY RESISTOR/WIRING HARNESS ON THE BLOWER MOTOR. THERE IS A SAFETY RECALL FOR THE SAME PROBLEM ON OTHER GM TRUCKS & VEHICLES AND THE PROBLEM IS WIDELY KNOWN/REPORTED ON THE INTERNET. FOR SOME REASON GM REFUSES TO ISSUE/FIX THIS RECALL FOR THE HUMMER H3? THE PROBLEM CAUSES THE WIRING TO GET SO HOT TO MELT THE INSULATION, WHICH COULD CAUSE A FIRE. I PARK MY VEHICLE IN AN ATTACHED GARAGE. *TT

NHTSA ODI #10459267

35,000 miles · Feb 19, 2012
Electrical SystemEngine And Engine CoolingVehicle Speed Control

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 …

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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, WHEN MY ENGINE SHUTS OFF AS I DRIVE, I HAVE COME CLOSE TO HITTING OTHER VEHICLES OR POLES AS I LOSE POWER STEERING ON A TURN.. I HAVE TO DRIVE ABOUT 90 MILES ONE WAY TO GET IT SERVICED, WHILE UNDER WARRANTY, I HAD IT "REPAIRED" ABOUT FIVE TIMES, NO SUCCESS, ONCE WARRANTY EXPIRED, GM DEALERS 90 MILES AWAY WERE STILL WILLING TO INSPECT VEHICLE SINCE PROBLEMS STARTED WHILE UNDER FULL GM WARRANTY, BUT NOW, THEY REFUSE TO GIVE ME A RENTAL AND TELL ME THEY DO NOT KNOW WHAT THE PROBLEM IS. MY LOCAL GM DEALER (ALAMOGORDO) REFUSES TO INSPECT VEHICLE AND THUS I AM REQUIRED TO MAKE A 180 MILE ROUND TRIP, BUT NOW, EVEN DEALER TELLS ME THEY DO NOT KNOW WHAT THE ISSUE IS AND THEY CANNOT REPRODUCE THE PROBLEM IN THE SHOP. I TOOK ABOUT 6 VIDEOS WITH MY DROID AFTER THE PROBLEM HAPPENS, BECAUSE THE PROBLEM LINGERS FOR ABOUT 15 MINUTES, THEN IT STOPS AND THE VEHICLE WORKS FINE. THE VIDEOS HOW THE RPM'S GOING UP AND DOWN, UP AND DOWN, UNTIL THE CAR SHUTS OFF, I RESTART IT, THEN IT SHUTS OFF AGAIN, OVER AND OVER AGAIN. PROBLEMS USUALLY APPEAR IN THE AM, AS I DRIVE OFF FOR THE FIRST TIME, BEFORE IT IS DRIVEN A GOOD DISTANCE, BUT CAN AND HAS HAPPENED AT ANY MOMENT. VERY DANGEROUS AND I DO NOT FEEL SAFE EACH MORNING AS I LEAVE MY MOUNTAIN HOME, ESPECIALLY IN COLD SNOW WEATHER. *TR

NHTSA ODI #10448482

63,000 miles · Jun 5, 2011
Electrical SystemVisibility

HVAC BLOWER FAN HARNESS/CONECTOR BURNT FAN NO OPERATING FOUND FIX ON HUMMER FORUM. *TR

NHTSA ODI #10404473

60,000 miles · Oct 7, 2010
Electrical SystemSeats

TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT ATTEMPTED TO START THE VEHICLE BUT IT WOULD NOT START. AFTER TEN MINUTES, THE VEHICLE STARTED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE IT WAS REPAIRED (REPAIR DETAILS WERE NOT GIVEN). THE FAILURE CONTINUED TO OCCUR INTERMITTENTLY. IN ADDITION, THE CONTACT STATED THAT …

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TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT ATTEMPTED TO START THE VEHICLE BUT IT WOULD NOT START. AFTER TEN MINUTES, THE VEHICLE STARTED. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE IT WAS REPAIRED (REPAIR DETAILS WERE NOT GIVEN). THE FAILURE CONTINUED TO OCCUR INTERMITTENTLY. IN ADDITION, THE CONTACT STATED THAT THE SEAT HEATER ON THE DRIVER'S SEAT WOULD INVOLUNTARILY TURN ON AND THE SEAT SHIFTED WHILE SHE MADE TURNS OR APPLIED THE BRAKES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE FAILURE WERE REPAIRED, HOWEVER THE FAILURE CONTINUED. THE FAILURE MILEAGE WAS APPROXIMATELY 60,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 72,000.

NHTSA ODI #10359514

33,184 miles · Jul 15, 2009
Electrical SystemFire

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 …

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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.

NHTSA ODI #10276877

Official recalls

2

15V421000 · Visibility:defroster/defogger/hvac System:fan/motor

Jul 1, 2015

General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.

Consequence & remedy

Consequence: If the blower motor connector module overheats, it can increase the risk of a fire.

Remedy: GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.

10V179000 · Structure:body:hood

Apr 30, 2010

GM IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 HUMMER H3 VEHICLES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE INTEGRAL CLIP-TABS ON THE LOUVER ON THE HOOD MAY FRACTURE, CAUSING THE HOOD LOUVER RATTLE AGAINST THE HOOD AND BECOME LOOSE. IF THIS INDICATOR IS UNNOTICED, ADDITIONAL CLIPS COULD FRACTURE AND THE HOOD LOUVER COULD DETACH FROM THE VEHICLE.

Consequence & remedy

Consequence: IF THE VEHICLE IS BEING DRIVING WHEN THIS OCCURS, IT COULD STRIKE A FOLLOWING VEHICLE AND CAUSE INJURY AND/OR PROPERTY DAMAGE.

Remedy: DEALERS WILL APPLY AN ADHESIVE TO THE HOOD LOUVER TO SECURE IT TO THE HOOD. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 12, 2010. OWNERS MAY CONTACT HUMMER AT 800-732-5493 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.