wierd problemb with an 05 H2

[(((echo)))]

got in the beast today...and all of the sudden the speedo is off 20mph!?
it's completely stock, i didnt do anything to it
any ideas?

[Intercooled]

I had problems with my 05 not shifting correctly, then the check ingine lite came on and then my keys wouldn't come out of the ignition when I shut off the truck. It was the ignition switch which effects a multitude of things. Common problem for the 05. It could be whats making your speedo off......just a guess.

[3Hummer]

large treadmil, you were really in place with tires spinning hahaha just playing, maybe just froze up or something weird did you try calling your dealer?

[PaHumBug]

My 03 had that issue when it was cold (<10 deg) but would act fine when once it had a chance to thaw. I heard it was $300 to fix so I just dealt with it and planned on fixing once it completely quit. Ended up trading it for an 05 before it completely broke anyway.