Problems owners report
Complaints filed with NHTSA about the 2007 Hummer H3, by the system named in each complaint. One complaint can name several.
- Electrical system76
- Engine44
- Unknown or other25
- Visibility/wiper24
- Structure22
- Visibility20
- Air bags19
- Power train19
- Engine and engine cooling13
- Electronic stability control (esc)12
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 19 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Fatal crashes in the US
From 2020 to 2023, 23 2007 H3 vehicles were involved in crashes on US public roads in which someone died; 7 people died inside them, and 4 of the vehicles rolled over. This is a count, not a crash rate: it grows with the number of cars on the road.
NHTSA Fatality Analysis Reporting System (FARS), crash years 2020–2023 (public domain)
New York safety inspections
At its first New York inspection the 2007 Hummer H3 failed the safety check 2.27% of the time — 6% less often than the average 2007 passenger car (2.42%). Median odometer at inspection: 141,483 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
In the United Kingdom
20 cars built in 2007 were licensed for the road at the end of 2025, and 9 more were declared off the road (SORN).
Department for Transport and DVLA, vehicle licensing statistics (table VEH0124, year of manufacture) · Open Government Licence v3.0
In New Zealand
8 2007 cars are on the New Zealand register; 100% arrived as used imports, 0% were sold new in New Zealand.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Fuel consumption
Official Canadian test results for 2 variants: combined 15.7–15.9 L/100 km (about 15 mpg US), CO₂ 361–366 g/km.
| Variant | City | Highway | Combined |
|---|---|---|---|
| H3 4X4 · Sport utility vehicle · Regular gasoline | 17.4 | 13.5 | 15.7 |
| H3 4X4 · Sport utility vehicle · Regular gasoline | 18.1 | 13.1 | 15.9 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls in Canada
2 Transport Canada recalls for the 2007 Hummer H3.
| 2015286 26 Jun 2015 | Heater And Defroster On certain vehicles, the connector module that controls the blower motor speed in the heat/vent/air conditioning (HVAC) system could overheat under extended per… |
| 2010140 29 Apr 2010 | Accessories On certain vehicles, the integral clip-tabs on the hood louver may fracture, which could allow the hood louver to lose its retention mechanism. As the clip-tab… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
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.
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.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Hummer told its dealers about the 2007 Hummer H3: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 634241 | LOW VOLTAGE DISPLAY ON IP GAUGE, LIGHTS DIM AT STOP LIGHTS, BATTERY DISCHARGED, NO START, SLOW CRANKING, DIM LIGHTS AT IDLE, LOW GENERATOR OUTPUT. NLM *AR INCLUDES 1990-2008 PASSENGER CARS AND LIGHT DUTY TRUCKS INCLUDING SATURN. UPDATED 07-24-07. *KB UPDATED 11/29/07. *NJ |
| 634238 | BATTERY CHARGING TIPS - 1990-2003 PASSENGER CARS AND LIGHT DUTY TRUCKS, 1990-2003 ISUZU LIGHT DUTY TRUCKS, 2003 HUMMER H2. NLM 1990 - 2007 GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN); 1990 - 2007 ISUZU LIGHT DUTY TRUCKS. *TT |
| 632348 | THIS BULLETIN UPDATES GMCS POSITION ON REFINISHING ALUMINUM WHEELS FOR 2003 AND PRIOR PASSENGER CAR AND TRUCKS. *TT 2007 AND PRIOR PASSENGER CARS AND TRUCKS INCLUDING SATURN. UPDATED. *KB |
| 631266 | INTERMITTENT NO CRANK, NO START CONDITION FOR 2001-2002 PASSENGER CARS AND TRUCKS. *SLC 2001-2007 GM PASSENGER CARS AND LIGHT-DUTY TRUCKS (INCLUDING SATURN). *TT |
| 631244 | GENERAL MOTORS VEHICLES AND TRUCKS: SUBJECT REGARDING, 2002 AND PRIOR PASSENGER CARS AND TRUCKS, CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. *SLC UPDATED *EH UPDATED 3/30/11. HEADLAMP LENS OVERHEATING WHEN COVERED AND CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. CAN CAUSE CRAZING OR CRACKING OF HEADLAMP LENS. *PE UPDATED 6/24/11. *PE UPDATED 5/14/12. INCLUDING 2013 MODEL YEAR. *PE |
| 628811 | SOME VEHICLES MAY EXHIBIT A CLUNK NOISE THAT CAN BE HEARD ON A 2-3 UPSHIFT ON 2002 AND PRIOR LIGHT DUTY TRUCKS. *TT UPDATE. 2007 AND PRIOR PASSENGER CARS AND LIGHT DUTY TRUCKS. *KB |
| 609745 | INFORMATION ON THE AVAILABILITY OF SEAT BELT EXTENDERS FOR 2000 AND PRIOR PASSENGER CARS AND TRUCKS. *TT UPDATED THIS BULLETIN CONTAINS 2007 AND PRIOR PASSENGER CARS AND TRUCKS INCLUDING SATURNS. *KB |
| 11011782 | This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel. |
| 11009531 | This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive. |
| 11009156 | This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update. |
| 11009088 | This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped. |
| 11008956 | This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only). |
| 11007936 | This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. |
| 11007935 | This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. |
| 11007744 | This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 11007743 | This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 11007208 | This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection. |
| 11007196 | This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies. |
| 11007116 | This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 11007091 | This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 11006682 | This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern. |
| 11006621 | Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers. |
| 11004727 | This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive. |
| 11004557 | This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 11002312 | This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information. |
NHTSA manufacturer communications (public domain)