2007 Hummer H3: engine overheating

Filed Jun 21, 2021 · Engine, Visibility · 160,000 miles · TX

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.

Filed Mar 8, 2018 · Engine · 136,000 miles · FL

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.

Filed Feb 22, 2017 · Driver assistance, Engine · 22,000 miles · FL · crash

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.

Filed Mar 1, 2016 · Electrical · 48,000 miles · KS

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.

Filed Oct 7, 2015 · Visibility · NV

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.

Filed Oct 2, 2015 · Fuel system · 97,000 miles · FL

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.

Filed Aug 18, 2015 · Electrical · 117,000 miles · FL · fire

Tl* the contact owns a 2007 hummer h3. The contact stated that the vehicle stalled several times without warning. The vehicle was towed to a dealer over seven times for unknown repairs but the failure recurred. The contact also stated that the vehicle overheated several times. The contact also smelled strong fumes as if there were wires that could be burning. The dealer was notified of the failure and was unable to replicate the failure. The contact later received notification of the federal safety agency campaign number: 15v421000 (visibility). The dealer was unable to supply the part within a reasonable timeframe to repair the vehicle. The manufacturer was notified of the failure. The approximate failure mileage was 117,000.

Filed Dec 23, 2014 · Engine, Transmission · 53,018 miles · MD

Noticed radiator fluid dripping underneath vehicle. Opened the hood and found radiator coolant had been blown all over interior engine compartment. Enough coolant remained in the reservoir to prevent overheating. I noticed the incident just in time.

Filed Mar 14, 2014 · Engine · 59,614 miles · TX

I was sitting in the line at my son's school, been sitting there 2 - 3 minutes, and I smelled coolant. Looked at my gauge and it was riding just below mid-point....normal. Got my son and started home. Sitting at the red light, I smelled coolant again. This time I knew it was my car. We went to a service station and ask if someone could check to see if we had a leak. They pulled my h3 into the back and hooked up a pressure "tool" to the radiator and low and behold, but a hairline crack on the upper driver's side of the radiator. The mechanic laughed and said I was the 2nd one this week and the 6th one since they opened 6 months ago. He said that h3s were known to have radiator issues because the radiators were plastic! Seriously...plastic! I was given a quote of $1,100 to replace the radiator with another plastic one and that would give me a 2 year or 24,000 mile warranty. I brought the truck back to my house so my husband could look at it. I did some research on the internet and it seems that this is a well known problem with hummers and yet gm has not done a recall. I found a number for hummer customer service and called them. When I told the man that answered I had coolant leaking, he said "oh, give me your zip code and I will find a local dealership that can replace the radiator." no questions...he knew what the problem was already. He went on to say that we would have to "invest" in a diagnostic and if the dealership determined it was a manufacturers defect, that hummer might "participate" in the repair costs. I would think with this being such a common problem, a recall would be in order and possibly a replacement radiator that isn't plastic!

Filed Aug 5, 2010 · Acceleration, Brakes · 1,884 miles · FL

2007 hummer h3 has vibration in the brake and accelerator pedal. The consumer also stated the vehicle overheated while driving in traffic. *jb the consumer stated she continues to feel a kick in the pedal. The dealer was unable to fix the problems on the vehicle. Updated 01/18/11.

Filed Apr 28, 2008 · Engine · CA

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.