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 view YouTube and replace the part. The contact stated that the transmission shifter cable had failed. There was a hole in the shaft connected to the transmission to the C clip. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 111,400.
2005 Hummer H2 electrical problems
27 complaints (34% of all complaints for this car). Typical mileage when it fails: 52,118.
- owner complaints
- 27
- of this car's complaints
- 34%
- typical mileage
- 52,118
- crashes
- 0
- recalls
- 0
Which part fails
- Instrument cluster/panel4
At what mileage
Complaints by mileage at the time of the problem.
Hummer H2 electrical problems in other years
Related recalls
No recalls on record for this model year.
What 2005 Hummer H2 owners say
Most recent owner complaints, unedited.
While traveling on the main roads the speedometer intermittently malfunctions then drops to zero, whereas I'm literally unable to determine my speed this seems to occur when the engine warms up and I been driving for better than a half hour.
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.
Heater fan control knob overheats. When heater was in operation the heater control knob area above and below the cvery hot to the touch, heating up radio and other front dash components. Prior to this, instrument panel gauges stopped working completely for gas gauge and rpms, and stops working intermittently for speedometer (occurred around 100k miles).
Heater fan blower motor started working intermittently while car in motion, then smell of burning electrical. Wiring harness to heater under the glovebox was burning hot to the touch and melted all the wires. Plastic wire harness component completely destroyed and almost caught fire.
Get in start the vehicle, seat heat comes on. I turn it off it comes back on seconds later. It will not go off and stay off. It does not matter if im driving or parked. Seat heat comes on by its self.
Car will not start due to pass-lock or other malfunction component. Must try and fail and then wait for car to 're-set' each and every time the vehicle is tried to be started. After 10 minutes the car's engine completely kills, even if car is in motion. Reprogrammed keys and this only worked for a week. Now each and every door lock, back hatch lock, etc... Has failed. The hatch is locked closed and the doors will only unlock or lock physically with your hand. The speedometer fails intermittently, along with other gauges working only sometimes.
Tl* the contact owns a 2005 hummer h2. The contact stated that the driver side heating element turned on without warning and failed to turn off. The vehicle was taken to dealer three times, where it was diagnosed that the driver seat module needed to be reprogrammed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 48,000.
In the midst of traveling on vacation, the speedometer and many of the other dash components just quit working. I had to rely solely on the portable GPS to determine the speed that I was going. This is unsafe, and this is an issue that hummer most certainly needs to correct.
Starting in october 2013 my speedometer has not functioned properly. It does not display the correct speed no matter how fast or slow you are going. It is either stuck at 0 or bottoms out over 120. I have no idea how fast I am driving unless I use my portable GPS that shows speed. If it wasn't for my GPS then I could get into an accident or get a ticket because I would not know how fast I am going. This is a manufacture defect as I am not the only hummer owner with this issue. Gm needs to fix this problem asap.
Questions about the 2005 Hummer H2 electrical
Does the 2005 Hummer H2 have electrical problems?
Owners have filed 27 complaints about the electrical of the 2005 Hummer H2, 34% of all its complaints, more than any other problem.
At what mileage do 2005 Hummer H2 electrical problems start?
The typical (median) mileage in owner complaints is 52,118 miles.
Was there a recall on the 2005 Hummer H2 electrical?
There is no recall for this problem on this model year.
What year does the Hummer H2 have the most electrical problems?
The Hummer H2 model years with the most electrical complaints are 2005 (27 complaints), 2003 (24 complaints) and 2004 (14 complaints).
Other 2005 Hummer H2 problems
Visibility 19Airbags 12Brakes 11Steering 6Engine 4Transmission 4Tires 3Body 2Seats 2Wheels 2Acceleration 1Suspension 1
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