I have the same issue. Everytime I start the vehicle, I have to confirm "yes" or "no" if a trailer is attached. I have never hooked up a traiiler or a bike rack. Have taken this into the dealer 3 times for this issue. They have been unable to fix it. Said they would report the option to Toyota...
Do you happen to have any pictures showing where the release clips are for the overhead pod? Don't want to break the plastic taps. Helps to know where they are and which way to pry.
Thanks if you have the information.