2007 Hummer H3: problems, recalls and reliability
2 recalls and 237 owner complaints on record; the weakest area is electrical system (29% of complaints); the 2008 and 2009 model years look more trouble-free.
Data updated weekly · 1 new complaint in the last 90 days · latest recall Jul 2015
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 237 owner complaints filed with NHTSA for this exact model year.
“Odometer Fraud. The contact purchased a 2007 Hummer H3. The contact discovered that there was a mileage discrepancy. The vehicle was an independent dealer sale. At the time of purchase, the vehicle mileage was 122,791 and at the time of registration, it was discovered that the mileage was 122,799 but additional documents also showed that the mileage was unchanged over a 3-year period.”Owner report · Electrical System · Jun 2025
“I have the well known issue with the passkey security system. Nothing is wrong mechanically with the car but the security system will not allow the truck to start, therefore leaving me randomly leaving me stranded. Much has been documented on this issue, yet gm has never done a recall.”Owner report · Fuel/Propulsion System · Sep 2022
“The contact owns a 2007 Hummer H3. The contact stated that while driving at various speeds, the hood louvers loosened without warning. Upon investigation, the contact discovered NHTSA Campaign Number: 10V179000 (Structure) which he linked to the failure. The dealer was notified of the failure and informed that the vehicle was already serviced prior under recall. The contact was provided an estimate for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 140,000.”Owner report · Structure · Feb 2022
Show 7 more owner reports
“I bought my 2007 hummerh3 used w/124,000 miles. I've had it a month and already had it in mechanic shop due to not starting. The mechanic thought it was a fuel relay and charged me 258.00 parts/labor/tow. Today 11-16-21, only a day after I got it back, it stopped on me again!! Just had it towed again. Just learning that this is a common problem! Is anything being done to rectify this problem?”Owner report · Fuel/Propulsion System · Nov 2021
“The (2) u-joints , upper and lower, in the steering column were failing and the front wheels would not return to straight. According to the shop that replaced the u-joints they had failed. This is the second H3 with the same problem.”Owner report · Steering · Oct 2021
“Sunroof leaks & drain's don't work , my heart wiring plug has melted , do to water my car worning lights all were flashing then dash lights & speedometer all crashed and soon as I parked would not start. I took a dehumidifier put it in the shop and dried it out then everything worked again.”Owner report · Unknown Or Other · Sep 2021
“The contact owns a 2007 Hummer H3. The contact stated while driving at 50 mph, the vehicle started to overheat and stalled. The contact stated the temperature and the check engine warning light were illuminated. The vehicle was then towed to a local dealer where it has yet to be diagnosed due to the battery needing to be replaced. The vehicle was not repaired. The contact had the vehicle serviced under NHTSA campaign number: 15V421000 (Visibility) prior to experiencing the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 160,000.”Owner report · Engine · Jun 2021
“Vehicle misfires frequently. Engine will nearly stall at idle due to misfires and shake the whole vehicle. Lack of power and efficiency. And juddering while accelerating. It is known to gm and many people have had to resort to cylinder head replacements costing hundreds at a minimum.”Owner report · Engine · Jan 2021
“On 3/13/2020 my wife was driving our 2007 hummer h3 when the engine compartment and dash area caught on fire. The blower motor connector module had been replaced recently as part of a safety recall. The vehicle was in motion and she had just made a left turn. Although the part had been replaced, I still believe that this recall issue was the cause of said fire. The fire department called it an electrical issue. There was no warning at all. This was traumatic for my wife she had to jump out of the vehicle and had a miscarriage.”Owner report · Electrical System · Mar 2020
“Tl* the contact owns a 2007 hummer h3. While driving 35 mph, the engine oil indicator illuminated and an odor emitted from the vehicle. The contact replaced the oil and took the vehicle to an independent mechanic where it was discovered that there was a small hole in the manifold, which burned out the oil. The contact paid out of pocket to have the vehicle repaired. The manufacturer was notified and filed a claim. The contact was referred to NHTSA to file a complaint. The dealer was not contacted. The failure mileage was 120,000.”Owner report · Engine · Dec 2019
When filing, owners marked a crash in 12 of these complaints and injuries in 19 - self-reported to NHTSA, not verified accident statistics.
Recalls - 2 campaigns
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.
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.
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.
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.
Specifications
Factory options offered for the 2007 model year, decoded from the NHTSA vPIC database. Individual vehicles have one of each.
How other years compare
Check your exact H3 by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2007 Hummer H3 reliable?
NHTSA has 237 owner complaints and 2 recall campaigns on record for the 2007 Hummer H3. The most complained-about area is electrical system (29% of complaints).
At what mileage do 2007 Hummer H3 problems usually appear?
Half of the complaints that mention mileage were filed at 85,000 miles or less.
Does the 2007 Hummer H3 have open recalls?
2 recall campaigns have been issued, the latest concerning visibility:defroster/defogger/hvac system:fan/motor. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.