Illustration2007 HUMMER 3, BREAKS DOWN CONTINUOUSLY. *TR
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
Engine And Engine Cooling complaints
13 reportsI HAD DROPPED MY DAUGHTER OFF AT SCHOOL THEN WENT TO THE GAS STATION AND I SMELLED SOMETHING LIKE IT WAS BURNING AND I THOUGHT IT WAS OUT SIDE. WHEN I CAME OUT OF THE GAS STATION THERE WAS SMOKE ROLLING OUT OF MY HUMMER . I HAD JUMPED IN AND MOVED THE VEHICLE AWAY FROM THE PUMPS SO THEY WOULD NOT BLOW UP AND HURT THE PATRONS ARO…
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I HAD DROPPED MY DAUGHTER OFF AT SCHOOL THEN WENT TO THE GAS STATION AND I SMELLED SOMETHING LIKE IT WAS BURNING AND I THOUGHT IT WAS OUT SIDE. WHEN I CAME OUT OF THE GAS STATION THERE WAS SMOKE ROLLING OUT OF MY HUMMER . I HAD JUMPED IN AND MOVED THE VEHICLE AWAY FROM THE PUMPS SO THEY WOULD NOT BLOW UP AND HURT THE PATRONS AROUND US. THE FIRE DEPT CAME AND SO DID THE POLICE. THEY TOLD ME THAT THE BLOW HAD STARTED FROM BEHIND THE GLOVE COMPARTMENT AND WAS ON FIRE. *TR
ON THE SUMMER OF 2007, I WAS DRIVING ON THE FREEWAY AND I HAD TO PULLOVER TO THE SIDE BECAUSE MY HUMMER H3 STARTED OVERHEATED. I DID THE PROPER PROCEDURE OF REFILLING COOLANT TO MY CAR, BUT WITHIN 4 HOURS IT LEAKED. I WAS DRIVING FOR 30 MIN. WITH WINDOWS DOWN. NOT USING THE AIR CONDITIONER. I TOOK IT TO THE DEALERSHIP BECAUSE I …
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ON THE SUMMER OF 2007, I WAS DRIVING ON THE FREEWAY AND I HAD TO PULLOVER TO THE SIDE BECAUSE MY HUMMER H3 STARTED OVERHEATED. I DID THE PROPER PROCEDURE OF REFILLING COOLANT TO MY CAR, BUT WITHIN 4 HOURS IT LEAKED. I WAS DRIVING FOR 30 MIN. WITH WINDOWS DOWN. NOT USING THE AIR CONDITIONER. I TOOK IT TO THE DEALERSHIP BECAUSE I WAS STILL UNDER WARRANTY AND SUPPOSEDLY "FIXED" THE PROBLEM. IT IS APRIL 2008 AND THE OTHER DAY MY CAR SHUT DOWN ON ME AGAIN BECAUSE MY CAR OVERHEATED. I CHECKED ALL COOLING PLACED AND I REFILLED THEM WITH DEX-COOL COOLANT. THE NEXT MORNING I CHECKED THE COOLANT TANKS AND THEY WERE EMPTY. *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.