I tipped over my kayak with my keys in my pocket. After a few mins of swimming around I realized what I had in my pocket and threw it in a compartment that was also unknowingly filled with water. Key fob was probably submerged for over and hour. When it was time to drive home the push button wouldn't work saying key fob not in the vehicle. I remembered reading in the manual that said if the key fob battery ever dies to use the key fob to push the start button on the truck. Did this and truck started up but I had to deal with the annoying message about the key fob has left the vehicle. Once I got home I disassembled the fob over night to air out and the next day worked as good as usual. Still use the same fob and that was a few months ago this happened.