Strangest thing. I got in it this morning and the problem with the switch went away. i just wonder if it could have been weather related where it has been really cold here? so i guess now i have to wait for it to act up again to actually troubleshoot it. thanks for the help everybody.

 

it sounds like someone who used to own a prius is haunting your hummer

 

in lock on dry pavement when you turn the wheels either must slip or stress on axle/gears can break something.

did you see my post on "flashing red led" warning when lock lo or hi?

i get a blinking red led i cant miss!!
its ez to get into hi lock and not know.

i did on slick roads so im ok but , i added the led

tom