Has anyone ever had or heard of the overdrive off button turning on by itself? I have had it happen 3 times now over the past 6 months of owning this truck. What could it be caused by and how can I fix it?

 

could just be dirty inside. take the button apart. (easy; the outer ring is just a piece of plastic with flexible barbs to retain it, just pry it off and it'll go back on later) the contacts are two pieces of copper (gold-plated, maybe?) zig-zagged across a plastic disc. The switching material is a piece of conductive rubber on the button. Clean the disc, clean the little "rrrrrrrrubbah biskIT!!!!" (I had to do it) with some rubbing alcohol and reassemble. The buttons inside your alarm remote, and under your computer's keyboard are the same way. CLEAN'EM ALL!

 

Thank you for the reply I will give this a try today

 

servo itself in the trans could be sticking