SUNROOF DRAINS COLLECT WATER AND THERE IS MOISTURE INSIDE THE VEHICLE. BASED ON THE DEALERSHIP REVIEW IT IS DUE TO A FAULTY DESIGN OF THE DRAINS DUE TO THE RESTRICTIONS AT BOTH FRONT AND REAR. *TR
2008 Hummer H3
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2008 Hummer H3 do not stand out strongly from the model-year median of 91.
About this comparison →How this year compares
Owner complaints by model year
Compare all H3 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
87 reports with mileage · 26 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 34 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
113 reportsRADIATOR END TANK RUPTURED RELEASING COOLANT ON EVERYTHING UNDER THE HOOD AND GETTING ON THE WINDSHIELD. RESEARCH OF THIS FINDS THAT THERE IS A DEFECT IN THE DESIGN OF THE FACTORY RADIATOR WHICH GM REFUSES TO TAKE ACTION ON. HAD THIS HAPPENED AT HIGHER SPEEDS, THIS COULD HAVE BEEN A MUCH WORSE SITUATION. *TR
CASUALLY DRIVING DOWN THE FREAKING ROAD WHEN ALL SIDE AIRBAGS DEPLOYED FOR NO REASON! ME AND MY FRIEND BOTH SUFFERED BRUSING ON OUR FACES! *TR
THE RADIATOR HAD A CRACK IN IT WHEN WE BOUGHT THE HH3,IN 6-2011 WHICH WAS REPLACED WITH A NEW FACTORY RADIATOR. IT IS NOW MARCH 0F 2013 AND WE HAVE ANOTHER CRACK IN THE RADIATOR. WE CONTACTED" SAVVY" GOODYEAR IN LONG BEACH ,NEW YORK WHO REPLACED THE FIRST ONE AND THEY SAID IT IS NOT COVERED. REALLY DOES A RADIATOR ONLY LAST 2 YE…
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THE RADIATOR HAD A CRACK IN IT WHEN WE BOUGHT THE HH3,IN 6-2011 WHICH WAS REPLACED WITH A NEW FACTORY RADIATOR. IT IS NOW MARCH 0F 2013 AND WE HAVE ANOTHER CRACK IN THE RADIATOR. WE CONTACTED" SAVVY" GOODYEAR IN LONG BEACH ,NEW YORK WHO REPLACED THE FIRST ONE AND THEY SAID IT IS NOT COVERED. REALLY DOES A RADIATOR ONLY LAST 2 YEARS. THEY INDICATED THAT GMC WOULD NOT COVER THE REPLACEMENT. I SEE THAT THIS HAS HAPPENED TO SEVERAL VEHICLES SHOULDN'T THERE BE A RECALL? *TR
I BOUGHT A 2008 HUMMER H3 FOUR MONTHS AGO AT 49,956 MILES, WHEN LAST WEEK I NOTICED I HAD A BAD COOLANT LEAK CAUSING THE FLUIDS TO REMAIN ON THE TOP OF THE ENGINE, THE FAN SHROUD, ETC. HAD IT TOWED BACK TO THE DEALERSHIP WHERE I BOUGHT IT FROM BECAUSE ITS A 48 MILES DRIVE AND DIDN'T WANT TO TAKE THE CHANCE OF ANYTHING OVERHEATIN…
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I BOUGHT A 2008 HUMMER H3 FOUR MONTHS AGO AT 49,956 MILES, WHEN LAST WEEK I NOTICED I HAD A BAD COOLANT LEAK CAUSING THE FLUIDS TO REMAIN ON THE TOP OF THE ENGINE, THE FAN SHROUD, ETC. HAD IT TOWED BACK TO THE DEALERSHIP WHERE I BOUGHT IT FROM BECAUSE ITS A 48 MILES DRIVE AND DIDN'T WANT TO TAKE THE CHANCE OF ANYTHING OVERHEATING. TOOK IT IN ON FRIDAY MORNING GOT IT BACK MONDAY AFTERNOON WHEN I WAS TOLD THE RADIATOR WAS CRACKED. AFTER LOOKING ON THE INTERNET SEEMS LIKE EVERYONE SEEMS TO BE HAVING THIS PROBLEM. THE MILEAGE WHEN THE DEALERSHIP RECEIVED IT ON FRIDAY WAS 52,547. *TR
MY 22 YEAR OLD DAUGHTER & A PASSENGER WAS DRIVING WESTBOUND ON AIRPORT FREEWAY, GOING STRAIGHT, NO TURNING, NOPOT HOLES, ETC. ALL SIDE AIRBAGS DEPLOYED FOR NO REASON WHAT SO EVER! *TR
TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED WHILE STOPPED AT A TRAFFIC STOP. IN ADDITION, THE VEHICLE HESITATED TO ACCELERATE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MECHANIC STATED THAT THE THROTTLE SENSOR WOULD HAVE TO BE RE…
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TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED WHILE STOPPED AT A TRAFFIC STOP. IN ADDITION, THE VEHICLE HESITATED TO ACCELERATE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MECHANIC STATED THAT THE THROTTLE SENSOR WOULD HAVE TO BE REPLACED. THERE WAS A MANUFACTURER'S RECALL FOR THE THROTTLE SENSOR HOWEVER, THE CONTACT'S VIN WAS NOT INCLUDED IN THE MANUFACTURER'S RECALL. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.
TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 30 MPH, HE NOTICED A BURNING SMELL. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING AND THE TECHNICIAN STATED THAT THE BLOWER RESISTOR HAD TO BE REPLACED. THE CONTACT PURCHASED THE PART AND PERFORMED THE REPAIR HIMSELF. AFTER THE VEH…
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TL* THE CONTACT OWNS A 2008 HUMMER H3. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 30 MPH, HE NOTICED A BURNING SMELL. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING AND THE TECHNICIAN STATED THAT THE BLOWER RESISTOR HAD TO BE REPLACED. THE CONTACT PURCHASED THE PART AND PERFORMED THE REPAIR HIMSELF. AFTER THE VEHICLE WAS REPAIRED, THE FAILURE RECURRED APPROXIMATELY EIGHT MONTHS LATER. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 85,000.
I WAS DRIVING IN VERY THICK FOG WHICH WAS A WHITE OUT. I WAS GOING THROUGH A TURN AND WAS LOST IN THE FOG QUICKLY AND I ENDED UP OFF THE SIDE OF THE ROAD STRUCK A SPEED LIMIT SIGN AND A UTILITY POLE ON MY DRIVERS SIDE DOOR BECAUSE I SEEN IT AT THE LAST MOMENT AND TRIED TO AVOID HITTING IT. BUT AT THE POINT OF IMPACT MY DRIVER …
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I WAS DRIVING IN VERY THICK FOG WHICH WAS A WHITE OUT. I WAS GOING THROUGH A TURN AND WAS LOST IN THE FOG QUICKLY AND I ENDED UP OFF THE SIDE OF THE ROAD STRUCK A SPEED LIMIT SIGN AND A UTILITY POLE ON MY DRIVERS SIDE DOOR BECAUSE I SEEN IT AT THE LAST MOMENT AND TRIED TO AVOID HITTING IT. BUT AT THE POINT OF IMPACT MY DRIVER SIDE AIRBAG NEVER DEPLOYED AT ALL CAUSING ME TO SUFFER NUMEROUS BROKEN RIBS AND LOSS OF WORK FOR OVER 2 MONTHS TIME. I WASN'T DRIVING FAST AT ALL ACTUALLY WAS GOING UNDER THE ALLOTTED SPEED LIMIT. BUT DUE TO MY INJURIES THE HAD TO EXTRACATE ME FROM THE VEHICLE CAUSING IT TO BE A TOTAL LOSS BECAUSE THEY HAD TO CUT IT APART RUNNING MY VEHICLE COMPLETELY. I WAS NOT HAPPY ABOUT THIS AT ALL. *TR
I LOOKED ON THE INTERNET TO FIND OUT WHY MY HEATER BLOWER WAS NOT WORKING AND THERE WERE LOTS OF COMPLAINTS ABOUT THE WIRING HARNESS AND RESISTOR BURNING OUT. I CHECKED MINE AND SURE ENOUGH MINE WAS BURNT ON THE WIRING HARNESS ALL THE WAY THROUGH THE PLASTIC. GM NEEDS TO FIGURE OUT WHY IT WOULD CAUSE IT TO MALFUNCTION LIKE THAT…
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I LOOKED ON THE INTERNET TO FIND OUT WHY MY HEATER BLOWER WAS NOT WORKING AND THERE WERE LOTS OF COMPLAINTS ABOUT THE WIRING HARNESS AND RESISTOR BURNING OUT. I CHECKED MINE AND SURE ENOUGH MINE WAS BURNT ON THE WIRING HARNESS ALL THE WAY THROUGH THE PLASTIC. GM NEEDS TO FIGURE OUT WHY IT WOULD CAUSE IT TO MALFUNCTION LIKE THAT CAUSE IT COULD CAUSE A FIRE. *TR
Official recalls
215V421000 · 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
0No exact-year investigations in this snapshot.
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