2007 Hummer H3: engine stalls while driving

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 Jan 16, 2021 · Engine · 95,000 miles · CA

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.

Filed Sep 18, 2018 · Electrical · 134,565 miles · MI

Tl* the contact owns a 2007 hummer h3. While driving 45-50 MPH, the vehicle stalled without warning and all the electrical functions failed to operate. The contact was able to restart the vehicle after approximately three minutes. The vehicle was not taken to be diagnosed or repaired. The dealer and manufacturer were not contacted. The approximate failure mileage was 134,565.

Filed Apr 26, 2017 · Electrical · 145,000 miles · GA

Tl* the contact owns a 2007 hummer h3. While driving 45 MPH, the vehicle stalled and the theft lock warning indicator illuminated. The vehicle was restarted. The vehicle was inspected by an independent mechanic and unknown fuses related to the electrical system were replaced, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was 145,000.

Filed Jul 22, 2016 · Engine · 140,000 miles · MS

My hummer stalls and dies at various times. This is dangerous and know one can seem to tell me why it dies while driving. I take great care of my truck and me I have metal shavings in oil. Dying in an intersection with children is dangerous. This needs to be addressed.

Filed Jun 8, 2016 · Electrical · 67,000 miles · AK

Passlock problem (gm security) causing the vehicle to stall at any speed with no power brakes or steering till you coast to the shoulder and try it again might go 1 mile might go 100 miles before it happens again, passlock light flashes when vehicle stalls, tons of people with the same problem on the internet, this has happened 100's of times till I took it to the only service mechanic shop on our island in alaska and it has sat there for a month no one can figure out the problem and no dealership has come through on the phone to help either

Filed Dec 4, 2015 · Electrical · 40,000 miles · IL

Tl* the contact owns a 2007 hummer h3. The contact stated that the key failed to turn in order to start the vehicle. In addition, the vehicle stalled. The vehicle was taken to the dealer more than five times and the repairs did not remedy the failures. The details were not available. The vehicle was taken back to the dealer where the vehicle was pending a diagnosis. The manufacturer was notified of the failures. The VIN was not available. The approximate failure mileage was 40,000.

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 Apr 27, 2015 · Brakes, Engine · 100,000 miles · KY

While driving at 65 miles per hour the vehicle dash lit up all service lights the vehicle went into reduced power mode not allowing the vehicle to exceed 40 MPH and ABS sensors came on staying traction fail, ABS fail, began to stutter and stall. Took to shop. Vehicle running codes for spark plugs, replaced spark plugs. Few weeks later did it again, this time saying throttle body. Replaced it, a month later did it again, each time in major traffic having to pull off roadway to avoid an accident. This time says misfiring, throttle body, ABS,TPMS, thermostat, etc. Take it to have compression test run and system says cylinder failure. Do research on issue and find that there are hundreds of complaints about this online having caused accidents and thousand of dollars spent by consumers after having accidents but no known fatality so gm will no recall or honor the issue repairs. Almost all of them happening at 100k miles.

Filed Dec 31, 2014 · Engine · 56,800 miles · NJ

Tl* the contact owns a 2007 hummer h3. While driving approximately 40 MPH, the vehicle shook violently and stalled without warning. The vehicle could not be restarted. The vehicle was towed to the dealer where it was diagnosed that the engine or the cylinder needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 56,800. Updated 03/10/15*lj updated 6/17/2015

Filed Aug 20, 2014 · Electrical, Transmission · 119,000 miles · SC

Tl* the contact owns a 2007 hummer h3. The contact stated while traveling approximately 25 MPH, the vehicle stalled. The contact was not able to restart the vehicle. The vehicle was towed to an authorized dealer. The technician diagnosed that the PCM needed to be replaced. The vehicle was repaired. In addition, the key became lodged in the ignition causing the battery to drain. The vehicle was taken back to an authorized dealer who diagnosed that the shifter needed to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 119,000.

Filed Apr 12, 2012 · Engine · 70,000 miles · TX

Tl* the contact owns a 2007 hummer h3. The contact stated that while driving approximately 20 MPH, the engine stalled without warning and restarted. The failure occurred four times. The vehicle was taken to an authorized dealer for diagnosis and they were unable to duplicate or determine the cause of failure. The manufacturer was not notified of the failure. The approximate failure mileage was 70,000.