Mine can be turned off. Three menu items deep, at each and every start of the car. No preferences.
I simply disabled the camera and radar. The car was unsafe. Did I mention it emergency braked all the time, for no reason? No, it wasn't me, and almost getting rear ended all the time gets old fast.
These systems are far too immature for use.
What car? My Kia has dedicated buttons. It's three presses.