Hummer H2 Engine problems by year

The contact owns a 2005 Hummer H2. The contact stated that while parking in the mountains, the vehicle was in the park position, and it unexpectedly rolled and stopped at a boulder. There were no warning lights illuminated. The door hit the driver and knocked him to the ground, and he sustained an injury to his head, but medical attention was not provided. Another person on an ATV provided a jump start, but the vehicle failed to restart. The contact walked several miles to get assistance. The contact was able to...

Yesterday I turned off the alarm and unlocked the doors via the keypad. I opened the driver door and my wife opened the passenger rear door and the Hummer H2 started. No key in the ignition and the fob does not have a start button. I then got in the car and inserted the key and turned the key to ON then to off and the vehicle would not shut off. Only after cycling through the gears was I able to shut off the vehicle. I have now disconnected the battery to prevent another unwanted start.

The pass lock keeps my vehicle from starting and stopping it at random, and has been doing this for years. Seems to happen to at least 85% of hummers out there if you check around, hummer forum and other places. This is very serious. Stops at intersections, and could on railroad tracks. I know that you've had complaints about this for years and ignored them, saying that you haven't had other complaints. This should be addressed by your agency, as your job is to keep the citizens safe. Not pass them off as you've...

The computer in the h2 hummer malfunction. Wipers will not turn off. 4 Wheel drive will not engage. Engine light comes on. Everything the computer controls is failing.

Check engine light keeps coming on and light blinks than stays on until I take it in for service. The shop can't figure out why it is doing this had it shop about 7-8 times for service. Also code states can cause a possible fire

Tl* the contact owns a 2003 hummer h2. The contact stated that the vehicle failed to start. It took the contact up to thirty minutes to start the vehicle and the lock warning indicator illuminated. The vehicle was taken to an independent mechanic and the ignition switch was repaired, but the failure recurred. The vehicle was not repaired. The manufacturer and dealer were not notified. The failure mileage was 45,000. *Dt

I am having a problem with my hummer 2004. The lock light comes on and my hummer will not start. This is so horrible the problem started about 3 months ago. Everytime that light comes on I have to waite 15to 25 minutes for it to start again.

Vehicle has 133,000 miles. It has now experienced an exhaust manifold gasket leak due to broken bolts. This is causing noise from the engine area, and is unsafe due to the leak of hot gases being released from the engine at the points of failure (broken bolts). This may be an epa concern as well, and could also lead to failure of catalytic converter. Repair estimate is $1,300. An online search yields hundreds of other results with same failure and complaint on all gm v8 engines for years 1999-2007. This affects the 4.8L, 5.3L, and 6.0L models. This is a design failure and the affected vehicles with these engines should be recalled.

Exhaust leaking because manifold bolts broken , this is my second hummer , my lawyer has a hummer also and I belong to hummer group here in florida

Exhaust bolts broken , leaking exhaust fumes into vehicle , engine fire ???? City driving

My vehicle's warranty which I purchased separately had just expired but I still went back to dealer as the noise I had reported to them under warranty was now more apparent. Turns out it was due to broken off exhaust header bolts.Now I am out of warranty, dealership will not fix. I have 1 broken on drivers side and 3 on passenger side. Now my check engine light is on showing an oxygen sensor failure or catalytic converter. After researching the internet this problem is affecting thousands of people. Something needs to be addressed !! *Tr

Exhaust manifold bolts rusted off and the vehicle makes a ticking sound. I just observed a video explaining that this is a common problem. It also may cause other emissions related problems. Call me day or night for any further information. This vehicle has had nothing but problems and an unrelated engine fire due to the faulty windshield wiper motor in 2009. *Tr

Check engine light came on and wouldn't go out. Took it to the garage and they pulled up the code po442, evap leak. They did a smoke test and found out the fuel pump unit was all rusted out and also the straps holding the fuel tank in was all rusted out. One of the straps was completely broken off and only one was holding the tank but it was all rusted. Called a dealer because this part should have an 80,000 mile warranty but they said it was under powertrain and it wouldn't be covered. How could this be powertrain when it was an emissions issue. This is a very unsafe issue. It probably could of caught on fire. The vehicle is only a 2006 with 65000 miles on it so how could this happen. *Tr

A parked hummer h2 2003 was spontaneously combusted and destroyed. The suv was driven that fateful day for about 15 minutes back and forth to a grocery store and parked in our driveway. Engine was off and key was out. About 10 minutes later, my daughter noticed the engine on fire and panicked. Called 911. Fire engine hosed the fire out in the next 1/2 hour but the suv was charred and the front of the house damaged badly. We had kept the h2 well maintained and serviced it regularly. There were no...

1. Normal driving in town and highway 2. Failure of the drivers side & passenger side exhaust manifold bolts; causes exhaust gases to fill engine compartment and bypasses the catalytic emissions equipment. 3. Drivers side head had to be removed, broken manifold bolts extracted from the head, new manifold and stronger manifold bolts installed. *Tr