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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

Unknown Or Other complaints

25 reports
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97,000 miles · Oct 2, 2015
Fuel/propulsion SystemUnknown Or Other

OUR 2007 H3 HAD CRACKED RADIATOR WITH HOSE LEAKING COOLANT CAUSING THE OVERHEATING. WE HAVE NEVER DRIVEN THE VEHICLE OFF-ROADING AND NO WARNING LIGHT WAS DISPLAYED FOR THIS ISSUE. INSTEAD, WE BROUGHT IT IN FOR A DIFFERENT ISSUE WITH THE FUEL LINE AND DISCOVERED THE CRACKED RADIATOR, WHICH COULD HAVE CAUSED A BIGGER PROBLEM IF …

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OUR 2007 H3 HAD CRACKED RADIATOR WITH HOSE LEAKING COOLANT CAUSING THE OVERHEATING. WE HAVE NEVER DRIVEN THE VEHICLE OFF-ROADING AND NO WARNING LIGHT WAS DISPLAYED FOR THIS ISSUE. INSTEAD, WE BROUGHT IT IN FOR A DIFFERENT ISSUE WITH THE FUEL LINE AND DISCOVERED THE CRACKED RADIATOR, WHICH COULD HAVE CAUSED A BIGGER PROBLEM IF IT HAD GONE UNDISCOVERED FOR LONGER PERIOD OF TIME.

NHTSA ODI #10779356

Mileage unknown · Sep 29, 2015
Unknown Or Other

INTERMITTENTLY WILL CRANK BUT WILL NOT START. HOWEVER, IT WILL START AFTER A 10 MINUTE (NO LESS) WAITING PERIOD. THIS HAPPENS AT VARIOUS TIMES OF DAY, VARIOUS OUTSIDE TEMPERATURES, AND WITH FIRST MORNING STARTS OR AFTER DRIVING AND SHUTTING DOWN FOR ANY LENGTH OF TIME. THIS IS EXTREMELY INCONVENIENT, TO SAY THE LEAST, WHEN IT O…

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INTERMITTENTLY WILL CRANK BUT WILL NOT START. HOWEVER, IT WILL START AFTER A 10 MINUTE (NO LESS) WAITING PERIOD. THIS HAPPENS AT VARIOUS TIMES OF DAY, VARIOUS OUTSIDE TEMPERATURES, AND WITH FIRST MORNING STARTS OR AFTER DRIVING AND SHUTTING DOWN FOR ANY LENGTH OF TIME. THIS IS EXTREMELY INCONVENIENT, TO SAY THE LEAST, WHEN IT OCCURS WHILE ON TIME RESTRAINTS OR DURING AN EMERGENCY SITUATION (I.E. 10 MINUTES IS TOO LONG TO WAIT WHEN TRYING TO GET TO A HOSPITAL WHERE A LOVED ONE/FAMILY MEMBER IS CLINGING TO LIFE)

NHTSA ODI #10778349

66,790 miles · Feb 26, 2015
Electrical SystemEngineUnknown Or Other

ENGINE CHECK LIGHT CAME ON FOR VERY SHORT PERIOD OF TIME THEN WENT OUT. ABOUT A WEEK LATER IT CAME ON AGAIN. WENT TO CHEVY DEALER WHO RAN A QUICK CODE CHECK WHICH INDICATED THE NUMBER 5 CYLINDER WAS MISFIRING. THE CHEVY DEALER INDICATED THE ENGINE/POWER TRAIN WARRRANTY HAD EXPIRED AND THE PROBLEM COULD BE FROM INJECTORS, PLUG…

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ENGINE CHECK LIGHT CAME ON FOR VERY SHORT PERIOD OF TIME THEN WENT OUT. ABOUT A WEEK LATER IT CAME ON AGAIN. WENT TO CHEVY DEALER WHO RAN A QUICK CODE CHECK WHICH INDICATED THE NUMBER 5 CYLINDER WAS MISFIRING. THE CHEVY DEALER INDICATED THE ENGINE/POWER TRAIN WARRRANTY HAD EXPIRED AND THE PROBLEM COULD BE FROM INJECTORS, PLUGS, COIL AND VALVES. INITIAL COMPUTER CHECK WOULD COST $135. VEHICLE IS SITTING IN MY GARAGE AWAITING MONEY TO GET IT CHECKED.

NHTSA ODI #10690907

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

Mileage unknown · May 4, 2007
Unknown Or Other

I WAS DRIVING MY 2007 H3 ON THE GARDEN STATE PARKWAY WHEN MY 3 YEAR OLD DAUGHTER OPENED UP THE LOCK ON THE REAR DOOR AND THEN PROCEEDED TO OPEN IT WHEN I WAS TRAVELING 65 MPH. THIS CAR IS NOT EQUIPPED WITH CHILD SAFETY LOCKS. I INFORMED THE DEALERSHIP AND WAS TOLD THAT NOTHING COULD BE DONE TO CORRECT THIS EXCEPT PUT MY CHILD IN…

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I WAS DRIVING MY 2007 H3 ON THE GARDEN STATE PARKWAY WHEN MY 3 YEAR OLD DAUGHTER OPENED UP THE LOCK ON THE REAR DOOR AND THEN PROCEEDED TO OPEN IT WHEN I WAS TRAVELING 65 MPH. THIS CAR IS NOT EQUIPPED WITH CHILD SAFETY LOCKS. I INFORMED THE DEALERSHIP AND WAS TOLD THAT NOTHING COULD BE DONE TO CORRECT THIS EXCEPT PUT MY CHILD IN THE CAR SEAT IN THE MIDDLE WHICH IS NOT SAFE BRING THAT SHE WEIGHS 32 POUNDS. *JB

NHTSA ODI #10189826

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.