2005 tundra randomly switches in out of overdrive

HAVE YOU SCANNED FOR TRANS CODES?

I had the tranny fluid replaced and it corrected hard shifting and the switching in and out of overdrive.

Mine does that too... Ive had it inspected with no results... I have a Friend who has hunted countless hours, and he seems to figure that its damage to the wire housing inside the steering column... Play with the gear shifter when the O/D off button lights up, sometimes it will go back off. nothing you can really do about it until you start chasing wires all the way from end to end...