My wife loves to drive my 13 RRS but often leaves the key fob in the cupholder. Recently she did this (it was the last place I saw it before exiting the vehicle but we could never find the key later.) She has a bad habit of stopping the truck and immediately getting distracted by her phone...Anyway, I've searched the vehicle everyday and yet I suspect the fob is still inside because it still starts. Last night I forgot the other key and went out, only to have it start. I've also had the Key Fob Battery Low warning. Any ideas? I have legit searched all the nooks and crannies around and under the seats, even removing plastic pieces around the seat frames and no luck. It so tight inside the vehicle, there just aren't that many places it could have gone. Lost!