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 the federal safety agency 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.
Hummer H3 overheating problems
21 of the 790 owner complaints about the Hummer H3 describe engine overheating, most of them for the 2007 model year.
- owner complaints
- 21
- worst model year
- 2007
- typical mileage
- 59,614
Is there a fix? No recall or service bulletin covers this area of the car yet.
By model year
Often reported together
What owners say
Radiator has a 8 inch horizontal hair line crack that lets the coolant leak. The crack is on top right corner( drivers side). The radiator top is made from plastic that is prone to cracking due to framework bumping into it causing strain on radiator top which after time causes the top right corner to establish a hairline crack and cause the coolant to leak. Many hummer h3 vehicles owners have complained about this issue of having hairline cracks in top right corner. Hummer has replaced several hummer owners radiators at no cost, due to a design flaw that the top right radiator bumps into the framework causing stress on it and cracking. Gm has updated the radiator to accommodate for this issue, but has not showed interest in saying that this is a big issue. Why would they allow this to happen to thousands of hummer h3 owners if they know this is a design flaw which they are aware of. My hummer h3 only has 24,400 miles in it and street driven only how could this happen to soon.I had it checked by my local gm dealer and they stated that you're not the only one complaining about this and to contact gm regarding this issue.
Tl* the contact owns a 2007 hummer h3. While driving various speeds and approaching a stop, the vehicle overheated. The check engine warning indicator illuminated. The contact coasted to the side of the road, powered off the vehicle, and waited for a few minutes to restart it and resume driving. The vehicle was taken to stingray chevrolet bartow (1475 w main st, bartow, fl 33830, (863) 800-9999) where it was diagnosed that the speed sensor failed and needed to be replaced. The vehicle was not repaired. The vehicle was later taken to an independent mechanic where the thermostat was replaced; however, the failure recurred. The manufacturer was not contacted. The approximate failure mileage was 136,000.
Everything from: electrical, air condition, stabilitrack system, which cost me over $600.00 still not working properly. Leakingsun roof censors, I was made to pay for that still dont work. I paid over $8,000.00, or more. When ever I brought my vechicle in, I was forced to for something else, my vechile only had about 22,000.00 miles. I was taking it to gmc/vera cadillac 300 pembroke pines, fl 33025, ph:(954)362-9465, service manager mr.gustavo, edwin montoya. I have over 50 pages documents about fake repairs, my vechicle is wrost off now than before. It also has safty issues, mold/medw, AC overheating, airbag not working, etc. I am afraid for my safty.
2006 hummer h3. Consumer writes in regards to repairs to vehicle radiator overheating problems and seeks reimbursement for recall notice 15042. *smd the consumer stated the radiator, thermostat and water pump, were replaced on more than one occasion.
I received an important safety recall letter from hummer (gm) in august 2015 for my 2007 hummer h3. It is safety recall 15042. The letter indicated that it was a safety recall stating the connector module that controls the blower motor speed in the heat/vent/air conditioning (HVAC) system may overheat under extended operational periods at high and medium-high blower speeds. If this condition occurs there could be a risk of fire. The letter said parts weren't available and when they were I would be contacted to arrange a service appoint. After several months and no call, I contacted the number, 1‑800‑833‑6537, and asked what the hold-up is on the parts? I was told the parts were still unavailable. After several more months, I called again only to receive the same excuse with no projected date of arrival. To me this unacceptable especially this recall involves a potential risk of a fire. It is now march 2016 and I have not been contacted. I find it hard to believe that it takes so long to obtain replacements. I am hesitant to use the blower motor because of the potential fire risk.
I rec'd a safety recall notice 8/15 for 2009 h3 recall# 15042 or 15v421 (2 different # in letter) from hummer . The connector module that controls blower motor speed may overheat." if this condition occurs, there is the risk that the heat generated could melt the plastic surrounding the connector module, which increases the risk of a fire" I called dealer-and told gm has no "fix" for this issues (I call every few weeks) I called gm direct that said they don't have the parts yet to fix it. I was advised to drive around with a fire extinguisher in vehicle and not use the fan and leave the car if I smell smoke . Nothing has happened yet and I am not using fan but I would like this condition fixed before a fire occurs. It is very unsettling to drive this way. Hummer/gm
The air conditioning began working intermittently two years ago. About a year ago it stopped completely. The issue is related to overheating or melting of an electrical component (ours has melted and is visible) and I received a recall notice over a month ago but the part is still unavailable to do the repair. I live in florida where the temperatures are high most of the year so I have been deprived of full use of my vehicle for almost two years. I believe gm needs to do better to get these issues resolved as our loss of use is not in any other means being compensated. This is frustrating and disappointing and we need immediate resolution. It is a frequent, known, recurring and costly issue.
2007 hummer h3. Consumer writes in regards to vehicle connector module that controls the blower motor speed in the air conditioner/ heater system recall notice. *smd the consumer stated the connector module that controlled the blower motor speed in the HVAC system overheated under extended operational periods at high and medium speeds. It was replaced at a cost of $165.00 and the consumer is seeking reimbursement.
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 problem if it had gone undiscovered for longer period of time.
Related recalls
No recalls on record for this model year.
Questions about the Hummer H3 overheating
Which Hummer H3 years have engine overheating problems?
The model years with the most reports are 2007 (11 complaints), 2006 (5 complaints) and 2008 (4 complaints).
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