What is this sensor on picture? I saw that some Priuses have and some not. Is that camera or sensor for keyless opening? Thank you. iPhone ?
The black rounded square is a button for the Smart Key system that the key holder presses in order to lock the vehicle. Vehicles without SKS have no such buttons. Some have driver-door SKS only and it appears only on the driver's door handle. Vehicles with 3-door SKS add a button to the front passenger door handle and the rear hatch.
