NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
237 reports119,000 miles · Aug 20, 2014
Electrical SystemPower Train
TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 25 MPH, THE VEHICLE STALLED. THE CONTACT WAS NOT ABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. THE TECHNICIAN DIAGNOSED THAT THE PCM NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. IN ADDITION, THE KEY BECAME LO…
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TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 25 MPH, THE VEHICLE STALLED. THE CONTACT WAS NOT ABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO AN AUTHORIZED DEALER. THE TECHNICIAN DIAGNOSED THAT THE PCM NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. IN ADDITION, THE KEY BECAME LODGED IN THE IGNITION CAUSING THE BATTERY TO DRAIN. THE VEHICLE WAS TAKEN BACK TO AN AUTHORIZED DEALER WHO DIAGNOSED THAT THE SHIFTER NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 119,000.
NHTSA ODI #10626766
119,400 miles · Aug 19, 2014
Electrical System
WAS DRIVING IN A SMALL TOWN AND THE VEHICLE JUST LOST ALL POWER WITH NO WARNING. IT COST ME OVER 600.00 TO GET REPAIRED AND I'M THANKFUL I WAS NOT ON THE HIGHWAY GOING 60 OR 70 AND I'M THANKFUL THERE WAS NO VEHICLES BEHIND ME. ALSO THE KEY WON'T COME OUT OF THE IGNITION AFTER I DRIVE IT FOR A WHILE AND THIS WEARS DOWN MY BATTER…
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WAS DRIVING IN A SMALL TOWN AND THE VEHICLE JUST LOST ALL POWER WITH NO WARNING. IT COST ME OVER 600.00 TO GET REPAIRED AND I'M THANKFUL I WAS NOT ON THE HIGHWAY GOING 60 OR 70 AND I'M THANKFUL THERE WAS NO VEHICLES BEHIND ME. ALSO THE KEY WON'T COME OUT OF THE IGNITION AFTER I DRIVE IT FOR A WHILE AND THIS WEARS DOWN MY BATTERY AND I HAVE TO GET A JUMP. HAS THERE BEEN ANY RECALLS OR OTHER COMPLAINTS ABOUT THESE PROBLEMS. *TR
NHTSA ODI #10626448
57,534 miles · Aug 19, 2014
EnginePower Train
MY VEHICLE HAS A CRACKED RADIATOR AND ACCORDING TO OTHER HUMMER OWNERS THIS IS A COMMON DEFECT THAT HAPPENS TO THESE VEHICLES. HIS OVER HEATING CUASED ME TO PULL OVER ON A BUSY HIGHWAY WERE I COULD OF BEEN HIT AND KILLED, TOTAL FAILER OF VEHICLE ELECTRONICS, GMC DOES NOT WANT TO WORK ON THE VEHICLE THAT IS NOT UNDER WARRANTY, BE…
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MY VEHICLE HAS A CRACKED RADIATOR AND ACCORDING TO OTHER HUMMER OWNERS THIS IS A COMMON DEFECT THAT HAPPENS TO THESE VEHICLES. HIS OVER HEATING CUASED ME TO PULL OVER ON A BUSY HIGHWAY WERE I COULD OF BEEN HIT AND KILLED, TOTAL FAILER OF VEHICLE ELECTRONICS, GMC DOES NOT WANT TO WORK ON THE VEHICLE THAT IS NOT UNDER WARRANTY, BECAUSE OF THE MANY PROBLEMS WTH THIS VEHICLE. THIS CRACK IS WERE IT IS WEARING NEAR THE MOTOR. *TR
NHTSA ODI #10626232
73,550 miles · Aug 6, 2014
Engine
I PURCHASED THIS VEHICLE, NEW IN JULY 2007. SINCE THAT TIME I HAVE METICULOUSLY MAINTAINED THE VEHICLE. ON 7/28/14, PARKED AT HOME. GOT OUT AND SMELLED COOLANT VAPORIZING (DISTINCT SMELL). I AM A RETIRED MASTER MECHANIC, WITH 44 YEARS EXPERIENCE (CURRENTLY AGE 60). I EXAMINED THE RADIATOR, RINSED IT OFF AND DRIED IT, PRESSUR…
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I PURCHASED THIS VEHICLE, NEW IN JULY 2007. SINCE THAT TIME I HAVE METICULOUSLY MAINTAINED THE VEHICLE. ON 7/28/14, PARKED AT HOME. GOT OUT AND SMELLED COOLANT VAPORIZING (DISTINCT SMELL). I AM A RETIRED MASTER MECHANIC, WITH 44 YEARS EXPERIENCE (CURRENTLY AGE 60). I EXAMINED THE RADIATOR, RINSED IT OFF AND DRIED IT, PRESSURIZED THE SYSTEM TO DISCOVER A HAIRLINE CRACK IN THE UPPER, PLASTIC TANK OF THE RADIATOR IN AN AREA WITH NO IMPINGEMENT OF OTHER COMPONENTS, NO TRAUMA, AND NO ROUGH USE, EVER. I CAUGHT IT AT THE VERY FIRST MANIFESTATION, SOLELY BY THE SMELL. EXAMINING THE VEHICLE CLOSELY TO DISCOVER WHILE MY RADIATOR HAD ONLY THIS HAIRLINE CRACK IN A LOCATION OF NO-STRESS AND NO IMPINGEMENT OF OTHER COMPONENTS. RESEARCH FURTHER TO DISCOVER THIS IS A VERY COMMON PROBLEM WITH THE H3, FROM 2006, 2007, 2008 AND 2009 MODELS ALL IN THE 50,000 TO 100,000 MILE READINGS. THE REPLACEMENT OF THE RADIATOR AT LOCAL GM DEALER, WITH COOLING SYSTEM SERVICE WAS EXTREMELY EXPENSIVE AS THE REPLACEMENT OF THE RADIATOR REQUIRES THE RECEIVER DRYER OF THE AIR CONDITIONING SYSTEM TO BE DISCONNECTED WHICH REQUIRES DISCHARGE AND RECHARGE OF REFRIGERANT R124A. I SAVED THE DEFECTIVE RADIATOR. THERE IS NO OTHER WEAR NOR DAMAGE. THE INTERNAL CORES WERE CLEAR AND CLEAN LIKE NEW. NO OBSTRUCTIONS, DIRT NOR WEAR. IN OTHER WORDS I WAS FORCED TO REPLACE A PERFECTLY GOOD RADIATOR FOR 1 HAIRLINE CRACK ON THE UPPER PLASTIC TANK. THIS REPAIR, INCLUDING ALL COURTESY DISCOUNTS FROM THE SELLING DEALERSHIP, AS I HAD BEEN AN AUTO REPAIR SHOP OWNER AND LOYAL CUSTOMER FOR 30 YEARS OF MY LIFE, COST ME $966.57. NHTSA SHOULD DO A FORMAL DEFECT INVESTIGATION ON ALL THE HUMMER H3 MODELS AND ANY / ALL OTHER GM LIKE-TYPE VEHICLES WITH THE PLASTIC TANK RADIATORS WHICH COULD CAUSE A SERIOUS ACCIDENT OR DEATH. *TR
NHTSA ODI #10619439
109,950 miles · Aug 2, 2014
Air BagsInjury
I WAS DRIVING HOME I WAS GOING ABOUT 50 MPH WHEN I HEARD A LOUD NOISE. MY SIDE CURTAIN AIRBAGS AUTOMATICALLY DEPLOYED. MY SEAT BELT LOCKED UP ON ME AND CAUTION LIGHT CAME ON. I PULLED OFF THE ROAD TO SEE WHAT HAPPENED. I WAS GLAD THAT NO CAR WAS AROUND BECAUSE I WOULD HAVE WRECKED. THE INSIDE OFT HUMMER WAS FILLED UP WITH GUN PO…
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I WAS DRIVING HOME I WAS GOING ABOUT 50 MPH WHEN I HEARD A LOUD NOISE. MY SIDE CURTAIN AIRBAGS AUTOMATICALLY DEPLOYED. MY SEAT BELT LOCKED UP ON ME AND CAUTION LIGHT CAME ON. I PULLED OFF THE ROAD TO SEE WHAT HAPPENED. I WAS GLAD THAT NO CAR WAS AROUND BECAUSE I WOULD HAVE WRECKED. THE INSIDE OFT HUMMER WAS FILLED UP WITH GUN POWDER. I CALLED GM AND TOLD THEM WHAT HAPPENED. AFTER ABOUT 2 DAYS OF CALLING THEY CAME TO PICK UP MY TRUCK. THEY FIRST ASKED ME IF I COULD DRIVE IT TO THE LOCAL DEALER 25 MILES AWAY LOL NO MY AIRBAGS ARE DOWN AND I COULD NOT PUT MY SEAT BELT ON. SO NOW I HAVE A RENTAL CAR TO DRIVE TILL THEY LET ME KNOW SOMETHING. I JUST SO GLAD THAT IT DID NOT HAPPEN THE DAY BEFORE WHEN I WAS DRIVING DOWN 95 I COULD HAVE BEEN DIED IF IT WOULD HAVE GONE OFF THEN. I HOPE GM WILL FIX THE PROBLEM. *TR
NHTSA ODI #10618351
145,000 miles · Jul 20, 2014
Electrical System
FAN BLOWER RESISTOR BURNT UP AND MELTED WIRING HARNESS ELECTRICAL SEAT BUTTON THAT CONTROLS POSITION AND HEAT TURNS ON DUE TO THE SIDE PLASTIC SEAT MOLDING THAT FLEXES WHEN YOU SIT IN THE SEAT. *TR
NHTSA ODI #10614836
74,000 miles · Jul 1, 2014
Engine And Engine Cooling
AC/HEAT BLOWER FAN RESISTOR FAULTY. CAUSES BLOWER TO STOP WORKING. THE SHORT MAY CAUSE A FIRE. MANY COMPLAINTS OF THIS ISSUE ON THE INTERNET. MAY BE TIME TO PURSUE A CLASS ACTION SUIT. *TR
NHTSA ODI #10607407
74,000 miles · Jul 1, 2014
Visibility/wiper
WIPERS STOP INTERMITTENTLY AND DO NOT RETURN TO PARK POSITION. WIPERS COME ON WHEN STARTING VEHICLE AND THE SWITCH MUST BE TURNED ON AND OFF TO MANUALLY STOP THEM IN THE PROPER PARK POSITION. THIS IS A SERIOUS ISSUE THAT HAS COMPLAINTS ALL OVER THE INTERNET AND HAS PEOPLE QUESTIONING THE VIABILITY OF A CLASS ACTION SUIT. …
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WIPERS STOP INTERMITTENTLY AND DO NOT RETURN TO PARK POSITION. WIPERS COME ON WHEN STARTING VEHICLE AND THE SWITCH MUST BE TURNED ON AND OFF TO MANUALLY STOP THEM IN THE PROPER PARK POSITION. THIS IS A SERIOUS ISSUE THAT HAS COMPLAINTS ALL OVER THE INTERNET AND HAS PEOPLE QUESTIONING THE VIABILITY OF A CLASS ACTION SUIT. *TR
NHTSA ODI #10607405
100,000 miles · Jun 23, 2014
Electronic Stability Control (esc)Equipment Adaptive/mobility
HUMMER H3 HAS PASSLOCK SECURITY PROBLEM WHEN DRIVING. WHEN I DRIVE THE HUMMER AT ANY SPEED MY HUMMER LOCKS OUT AND ACTIVATES THE SECURITY LOCK AND LOOSES POWER FOR 10 SECONDS AND GAINS POWER AGAIN OR LOOSES POWER COMPLETELY FORCING ME TO PULL OVER AND TURN MY CAR BACK ON. *TR
NHTSA ODI #10605314
55,000 miles · May 15, 2014
Engine
RADIATOR HAD SMALL LEAK, HAS SINCE INCREASED OVER LAST 3 YEARS. NOT COVERED UNDER WARRANTY AND EVERY H3 OWNER KNOWS THIS IS A DEFECT THAT NEEDS TO BE RECALLED. *TR
NHTSA ODI #10588676
Official recalls
2Jul 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.
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 ↗