Rear Diff was enganged accidentally at car wash

I've hit the locker button on accident a few times, twice the locker has come on when I was going 30ish mph in 2H, unexplained mystery

 

a blinking locker light means the button is presses but the locker is not engaged

unpress the button to resolve

 

Did you buy this truck used? or new? I remember reading about a locker anytime mod some have done. Perhaps if used, the PO did the mod for that feature?

 

Maybe, but the truck was bone stock and traded in by an older gentlemen IIRC.

 

My ATRAC button is always on. Doesn't work until you put it in 4LO, then the light comes on.