how do i get my Orange light to stop blinking.?

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my daughter (2) years old. pushed the 4wd button while vehicle was off, turned vehicle on and the 4 green tire came on. and a orange circle light started blinking. got the fluids changed since i had just bought it from someone who didn't use the 4wd often. so i read up n thought that might b it. i try to reset it by disconnecting the battery, taking out fuse, and replacing fluids n nothing. still blinking. car drives fine. no noise no weird transmission jerks or noises. i already spend 230 changing fluids, in differentials and transfer case. and light still on. flashing.could it maybe b we dont really know how to engage disengage 4wd?? how to lock transfer case? please help. i am in mist of starting my own Business i have no room for major work on this truck. i would appreciate any related info.