KnownCarProblems2007 Hummer H3 Problems and Recalls
Owners filed 238 complaints with NHTSA about the 2007 Hummer H3, most often about the electrical (32% of complaints, typically around 90,000 miles). It is the 2nd most complained-about H3 model year since 2000 and has 2 recalls.
Most common 2007 Hummer H3 problems
Electrical
76 complaints · 32%Half of these problems showed up before 90,000 miles. Parts named most often: wiring, starter assembly, ignition, instrument panel.
I've had electrical concerning the factory and after market alarm system that the dealer influenced me to buy. I've had some sort of short causing to have it towed to dealer several times, I never got a complete understanding or reasoning for the problem. Now my air condition blower stopped working and I was not…
No air was coming out of vents, found the problem was faulty wiring with the resistor and wire harness blower motor both were burnt and smell of something burning.
Engine
56 complaints · 24%Half of these problems showed up before 72,500 miles. Parts named most often: cooling system, engine.
I was driving on the express way when I noticed my engine rev real high. I looked at the RPM's and it was almost red lined. I let off the gas imediatly and came to a slow crawl and found that it would not shift out of second gear. Pulled it off the road and shut it off to get out to find that there was transmission…
Ac/heat blower fan resistor faulty. Causes blower to stop working. The short may cause a fire. Many complaints of this issue on the internet. May be time to pursue a class action suit.
Visibility and wipers
42 complaints · 18%Half of these problems showed up before 87,500 miles. Parts named most often: defroster/defogger/hvac system, sun/moon roof assembly, windshield wiper/washer.
The contact owns a 2007 Hummer H3. The contact stated that the air conditioner did not function. The contact received notification of NHTSA campaign number: 15v421000 (visibility); however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the…
The contact owns a 2007 Hummer H3. The contact stated that the blower motor functioned intermittently. The contact received notification of NHTSA campaign number: 15v421000 (visibility) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for…
Other or unspecified
25 complaints · 11%Half of these problems showed up before 87,000 miles.
I keep getting a code that states that my truck runs with a low engine temperature. Plus my truck has had a leak from some where around the lower windshield that is causing electrical problems and soaking wet floors! We had a mechanic look for the leak and try to fix this issue but was unable to find the problem and…
Our 2007 H3 had cracked radiator with hose leaking coolant causing the overheating. We have never driven the vehicle off-roading and no warning light was displayed for this issue. Instead, we brought it in for a different issue with the fuel line and discovered the cracked radiator, which could have caused a bigger…
Body and structure
22 complaints · 9%Half of these problems showed up before 96,500 miles. Parts named most often: body.
I keep getting a code that states that my truck runs with a low engine temperature. Plus my truck has had a leak from some where around the lower windshield that is causing electrical problems and soaking wet floors! We had a mechanic look for the leak and try to fix this issue but was unable to find the problem and…
The contact owns a 2007 Hummer H3. While driving, the grill of the vehicle detached from the hood. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but offered no assistance. The failure mileage was 106,000.
Air bags
19 complaints · 8%Half of these problems showed up before 98,000 miles. Parts named most often: side/window, frontal.
Tl contact owns a 2007 Hummer H3. The contact stated while driving 35 MPH, the side air bags deployed without provocation. The driver suffered bruising. The vehicle was taken to an authorized dealer where they informed it would take between twenty and thirty days to examine the vehicle. The failure was believed to be…
I was leaving out of my subdivision and my side curtain side curtain air bags deployed (both sides) without any warning. Luckily, I was able to drive the vehicle back to house. Gm is not giving me the necessary information to resolve this issue.
Transmission
19 complaints · 8%Half of these problems showed up before 70,500 miles. Parts named most often: automatic transmission, manual transmission.
I was driving on the express way when I noticed my engine rev real high. I looked at the RPM's and it was almost red lined. I let off the gas imediatly and came to a slow crawl and found that it would not shift out of second gear. Pulled it off the road and shut it off to get out to find that there was transmission…
My radiator tank cracked right across the top compromising my cooling system. This turned into a bigger problem as the transmission oil cooler was not operating correctly and eventually destroying my transmission. I had to spend over $2k to have a refurbished tranny and new radiator installed.
Stability control
12 complaints · 5%Half of these problems showed up before 90,000 miles.
I've had electrical concerning the factory and after market alarm system that the dealer influenced me to buy. I've had some sort of short causing to have it towed to dealer several times, I never got a complete understanding or reasoning for the problem. Now my air condition blower stopped working and I was not…
Hummer H3 has passlock security problem when driving. When I drive the Hummer at any speed my Hummer locks out and activates the security lock and looses power for 10 seconds and gains power again or looses power completely forcing me to pull over and turn my car back on.
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2007 Hummer H3 recalls
Visibility and wipers: fan/motor
Risk: If the blower motor connector module overheats, it can increase the risk of a fire.
Fix: 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.
Full defect summary
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.
Body and structure: hood
Risk: If the vehicle is being driving when this occurs, it could strike a following vehicle and cause injury and/or property damage.
Fix: 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.
Full defect summary
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.
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
Questions about the 2007 Hummer H3
- What are the most common problems with the 2007 Hummer H3?
- By NHTSA owner complaints: electrical (76 complaints, typically around 90,000 miles); engine (56 complaints, typically around 72,500 miles); visibility and wipers (42 complaints, typically around 87,500 miles).
- How many recalls does the 2007 Hummer H3 have?
- 2 recalls listed by NHTSA, the latest from July 1, 2015 (visibility and wipers). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2007 a bad year for the Hummer H3?
- It is the 2nd most complained-about H3 model year since 2000, with 238 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.