Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
180–25K
2325–50K
4650–75K
3075–100K
59100–150K
16150K+
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
What owners actually said
237 reports
82,000 miles · Aug 10, 2016
Electrical System
IGNITION SWITCH ON THIS VEHICLE IS FAILING SAME AS ON OTHER GM VEHICLES WHICH HAVE BEEN RECALLED. SWITCH SETTING CHANGES INTO OFF POSITION SHUTTING OFF VEHICLE WHEN A MODERATE BUMP OR DIP IN THE ROAD IS ENCOUNTERED, SHUTTING OFF VEHICLE AND LOCKING STEERING WHEEL. GM REFUSES TO HONOR RECALL FOR IGNITION SINCE THIS VEHICLE WAS …
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IGNITION SWITCH ON THIS VEHICLE IS FAILING SAME AS ON OTHER GM VEHICLES WHICH HAVE BEEN RECALLED. SWITCH SETTING CHANGES INTO OFF POSITION SHUTTING OFF VEHICLE WHEN A MODERATE BUMP OR DIP IN THE ROAD IS ENCOUNTERED, SHUTTING OFF VEHICLE AND LOCKING STEERING WHEEL. GM REFUSES TO HONOR RECALL FOR IGNITION SINCE THIS VEHICLE WAS NOT LISTED UNDER ACTIVE RECALL/LAWSUIT SETTLEMENT. 5 OCCURRENCES OF THIS SHUT DOWN TO-DATE. GM COMPLAINT NUMBER 8-2272247746 WAS RESOLVED IN THEIR OPINION BY STATING TO ME THIS VEHICLE WAS NOT COVERED UNDER THE UMBRELLA OF THE CURRENT GM IGNITION RECALL. THE STATED THAT THEY SHARE MY SAFETY CONCERN AND BELIEVE I SHOULD HAVE THE VEHICLE SERVICED AT MY EXPENSE. THEY SUGGESTED CONTACTING SAFE CARS.GOV TO ATTEMPT ADDING THIS VEHICLE TO ACTIVE RECALL. PLEASE HELP.
NHTSA ODI #10894772
7,000 miles · Jul 25, 2016
Electrical SystemEngineFire
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE THE VEHICLE WAS PARKED, THE KEY BECAME STUCK IN THE IGNITION AND COULD NOT BE REMOVED. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION CYLINDER FAILED AND NEEDED TO BE REPLACED. THE DEALER MADE MANY ATTEMPTS TO REPAIR THE VEHICLE, BUT THE REMEDY FAILED. IN A…
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TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE THE VEHICLE WAS PARKED, THE KEY BECAME STUCK IN THE IGNITION AND COULD NOT BE REMOVED. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION CYLINDER FAILED AND NEEDED TO BE REPLACED. THE DEALER MADE MANY ATTEMPTS TO REPAIR THE VEHICLE, BUT THE REMEDY FAILED. IN ADDITION, VARIOUS ELECTRICAL FUNCTIONS FAILED AND A BURNING ODOR WAS NOTICED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 7,000.
NHTSA ODI #10888240
140,000 miles · Jul 22, 2016
Engine
MY HUMMER STALLS AND DIES AT VARIOUS TIMES. THIS IS DANGEROUS AND KNOW ONE CAN SEEM TO TELL ME WHY IT DIES WHILE DRIVING. I TAKE GREAT CARE OF MY TRUCK AND ME I HAVE METAL SHAVINGS IN OIL. DYING IN AN INTERSECTION WITH CHILDREN IS DANGEROUS. THIS NEEDS TO BE ADDRESSED.
NHTSA ODI #10887638
Mileage unknown · Jul 21, 2016
Electrical System
REPEAT NO START DUE TO FAULTY SECURITY SYSTEM. HAD TO GO TO EMERGENCY ROOM AND COULD NOT GO DUE TO FAULTY SECURITY OR "PASS LOCK" ISSUE AND THIS IS APPARENTLY KNOWN. WHY IS THERE NO RECALL, THIS IS A SAFETY ISSUE!
NHTSA ODI #10887359
134,000 miles · Jul 11, 2016
Suspension
TL* THE CONTACT OWNS A 2007 HUMMER H3. WHILE DRIVING 30 MPH, AN UNKNOWN CLANKING NOISE WAS HEARD FROM THE REAR PASSENGER SIDE OF THE VEHICLE. THE FAILURE RECURRED CONSTANTLY. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 134,000.
NHTSA ODI #10884140
Mileage unknown · Jun 27, 2016
Electrical System
MY CAR WILL NOT START DUE TO THE PASS LOCK ENGAGING WHEN I GO TO START THE VEHICLE. I HAVE TO WAIT 10 TO 15 MINUTES FOR PASS LOCK TO RESET AND THEN IT WILL START. MY CAR IS ALWAYS PARKED WHEN THIS PROBLEM OCCURS. THIS PROBLEM HAS BEEN ON GOING FOR A YEAR NOW, STARTED ONCE A MONTH AND NOW IT'S EVERY 2 WEEKS.
NHTSA ODI #10876752
67,000 miles · Jun 8, 2016
Electrical System
PASSLOCK PROBLEM (GM SECURITY) CAUSING THE VEHICLE TO STALL AT ANY SPEED WITH NO POWER BRAKES OR STEERING TILL YOU COAST TO THE SHOULDER AND TRY IT AGAIN MIGHT GO 1 MILE MIGHT GO 100 MILES BEFORE IT HAPPENS AGAIN, PASSLOCK LIGHT FLASHES WHEN VEHICLE STALLS, TONS OF PEOPLE WITH THE SAME PROBLEM ON THE INTERNET, THIS HAS HAPPENED…
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PASSLOCK PROBLEM (GM SECURITY) CAUSING THE VEHICLE TO STALL AT ANY SPEED WITH NO POWER BRAKES OR STEERING TILL YOU COAST TO THE SHOULDER AND TRY IT AGAIN MIGHT GO 1 MILE MIGHT GO 100 MILES BEFORE IT HAPPENS AGAIN, PASSLOCK LIGHT FLASHES WHEN VEHICLE STALLS, TONS OF PEOPLE WITH THE SAME PROBLEM ON THE INTERNET, THIS HAS HAPPENED 100'S OF TIMES TILL I TOOK IT TO THE ONLY SERVICE MECHANIC SHOP ON OUR ISLAND IN ALASKA AND IT HAS SAT THERE FOR A MONTH NO ONE CAN FIGURE OUT THE PROBLEM AND NO DEALERSHIP HAS COME THROUGH ON THE PHONE TO HELP EITHER
NHTSA ODI #10873196
Mileage unknown · Jun 6, 2016
Visibility/wiper
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V421000 (VISIBILITY); HOWEVER, THE PARTS WERE UNAVAILABLE TO PERFORM THE REPAIRS. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE…
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TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V421000 (VISIBILITY); HOWEVER, THE PARTS WERE UNAVAILABLE TO PERFORM THE REPAIRS. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.
NHTSA ODI #10872741
Mileage unknown · May 18, 2016
Unknown Or Other
I HAVE OWNED MY HUMMER H3 FOR APPROXIMATELY 8 YEARS AND DURING THE LAST 4 TO 5 YEARS I HAVE EXPERIENCED A REPETITIVE ISSUE WITH THE VEHICLE NOT STARTING AND THEN AFTER WAITING 10 MINUTES AND IT STARTS WITH NO ISSUES. THIS OF COURSE HAS BEEN HAPPENING MORE FREQUENTLY NOW, BECOMING MORE AND MORE OF AN ANNOYANCE/INCONVENIENCE. I …
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I HAVE OWNED MY HUMMER H3 FOR APPROXIMATELY 8 YEARS AND DURING THE LAST 4 TO 5 YEARS I HAVE EXPERIENCED A REPETITIVE ISSUE WITH THE VEHICLE NOT STARTING AND THEN AFTER WAITING 10 MINUTES AND IT STARTS WITH NO ISSUES. THIS OF COURSE HAS BEEN HAPPENING MORE FREQUENTLY NOW, BECOMING MORE AND MORE OF AN ANNOYANCE/INCONVENIENCE. I HAVE COMMUNICATED THIS TO GM AND THEIR ANSWER IS THAT IT IS NOT A RECALL AND THEY SOUND SOMEWHAT SURPRISED WITH THE ISSUE AS IF THEY ARE HEARING IT FOR THE FIRST TIME. I HAVE GONE ONLINE AND HAVE WITNESSED THE NUMEROUS COMPLAINTS FROM OTHER HUMMER CUSTOMERS. SOME HAVE SPENT THOUSANDS OF DOLLARS TO ACHIEVE TEMPORARY OR NO RESOLUTION TO THIS PROBLEM. I AM HOPING THAT MY TESTIMONY TO THIS ISSUE WILL FURTHER CORROBORATE/JUSTIFY OTHER COMPLAINS ALREADY FILED FOR THE SAME PROBLEM AND INFLUENCE A CORRECTIVE ACTION RESPONSE "RECALL" FROM GM.
NHTSA ODI #10865635
103,306 miles · May 4, 2016
EnginePower Train
THE VEHICLE JUST LOST POWER AND ALMOST LOST IGNITION WHILE DRIVING 50 MILES AN HOUR. DIAGNOSTIC CODE STATE, MISFIRE IN CYLINDER ONE. VALVE SPRINGS ( ROCKER ARM) ARE BREAKING PREMATURELY CAUSING A LEAKING VALVE PROBLEM. MECHANIC ALSO NOTICED OTHER SPRINGS WERE FATIQUED CAUSING A LOOSER THAN NORMAL SEATING. GM SERVICE MANAGER MEN…
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THE VEHICLE JUST LOST POWER AND ALMOST LOST IGNITION WHILE DRIVING 50 MILES AN HOUR. DIAGNOSTIC CODE STATE, MISFIRE IN CYLINDER ONE. VALVE SPRINGS ( ROCKER ARM) ARE BREAKING PREMATURELY CAUSING A LEAKING VALVE PROBLEM. MECHANIC ALSO NOTICED OTHER SPRINGS WERE FATIQUED CAUSING A LOOSER THAN NORMAL SEATING. GM SERVICE MANAGER MENTION A SPRING PROBLEM ON 2006 2007 RENDEVOUS. ONE OF THE LARGEST COMPLAINTS WITH THE HUMMER 3 IS THIS LEAKY VALVE SYNDROM WHICH THE DEALERS KNOW ABOUT. SOME OCCURING WITH THE VEHICLE HAVING ONLY 30,000 PLUS MILES.
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.
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.
2007 Hummer H3 Problems, Complaints & Recalls | Skip That Year