Illustration2007 HUMMER H3 HAS VIBRATION IN THE BRAKE AND ACCELERATOR PEDAL. THE CONSUMER ALSO STATED THE VEHICLE OVERHEATED WHILE DRIVING IN TRAFFIC. *JB THE CONSUMER STATED SHE CONTINUES TO FEEL A KICK IN THE PEDAL. THE DEALER WAS UNABLE TO FIX THE PROBLEMS ON THE VEHICLE. UPDATED 01/18/11. *JB
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 →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
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
Service Brakes, Hydraulic complaints
4 reportsTL* THE CONTACT OWNS A 2007 HUMMER H3. HIS REAR BRAKE DRUM CAUGHT ON FIRE . THE REAR BRAKE DRUM WAS LOCATED UNDER THE FUEL TANK. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. HE WAS ADVISED THEY WOULD NOT REPAIR THE VEHICLE UNDER WARRANTY BECAUSE HE MADE HIS TIRES SPIN TOO MUCH IN THE SNOW. HOWEVER WHILE IN SNOW HIS VEHIC…
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TL* THE CONTACT OWNS A 2007 HUMMER H3. HIS REAR BRAKE DRUM CAUGHT ON FIRE . THE REAR BRAKE DRUM WAS LOCATED UNDER THE FUEL TANK. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. HE WAS ADVISED THEY WOULD NOT REPAIR THE VEHICLE UNDER WARRANTY BECAUSE HE MADE HIS TIRES SPIN TOO MUCH IN THE SNOW. HOWEVER WHILE IN SNOW HIS VEHICLE BECAME STUCK AND HE WAS TRYING TO GET OUT. GENERAL MOTORS WAS ALSO CONTACTED AND STATED THEY REVIEWED HIS CLAIM BUT WOULD NOT COVER THE REPAIR. THE FAILURE MILEAGE WAS 31,000. THE VIN WAS UNKNOWN.
TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACTS HUSBAND STATED THAT THE DISTANCE BETWEEN THE BRAKE AND ACCELERATOR PEDALS IS TOO NARROW AND HIS SHOES GET STUCK IN THE SPACE. THE CONTACT SPOKE WITH THE DEALER AND THEY STATED THAT THEY WERE AWARE OF THE FAILURE. THE CURRENT MILEAGE WAS 200 AND FAILURE MILEAGE WAS 149. UPDAT…
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TL*THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACTS HUSBAND STATED THAT THE DISTANCE BETWEEN THE BRAKE AND ACCELERATOR PEDALS IS TOO NARROW AND HIS SHOES GET STUCK IN THE SPACE. THE CONTACT SPOKE WITH THE DEALER AND THEY STATED THAT THEY WERE AWARE OF THE FAILURE. THE CURRENT MILEAGE WAS 200 AND FAILURE MILEAGE WAS 149. UPDATED 02-01-08 *BF THE CONSUMER STATED SHE HAS LOCATED THE DEFECT. THE CONSUMER STATED THE DEFECT WAS THE CARPET THAT WAS INTERFERING WITH THE BRAKE, SO PROBLEM SOLVED. UPDATED 02/01/08 *TR
TL*- THE CONTACT OWNS A 2007 HUMMER H3 STATED THAT BETWEEN THE GAS PEDAL AND BRAKE THERE IS NOT ENOUGH ROOM FOR HIM TO NAVIGATE THE TWO PEDALS BECAUSE WHEN HE PUT HIS FOOT ON THE GAS PEDAL IT CAUGHT THE BRAKE PEDAL AND IT CAUSES HIM DIFFICULTY IN OPERATE THE VEHICLE PROPERLY. THE CURRENT AND FAILURE MILEAGE WERE BOTH 6,000 MIL…
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TL*- THE CONTACT OWNS A 2007 HUMMER H3 STATED THAT BETWEEN THE GAS PEDAL AND BRAKE THERE IS NOT ENOUGH ROOM FOR HIM TO NAVIGATE THE TWO PEDALS BECAUSE WHEN HE PUT HIS FOOT ON THE GAS PEDAL IT CAUGHT THE BRAKE PEDAL AND IT CAUSES HIM DIFFICULTY IN OPERATE THE VEHICLE PROPERLY. THE CURRENT AND FAILURE MILEAGE WERE BOTH 6,000 MILES.
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.