See also:

Cleaning the BLIS camera lenses
In order to function optimally, the BLIS camera lenses must be kept clean. They can be wiped clean with a soft cloth or wet sponge. CAUTION • Clean the lenses carefully to avoid scratching. ...

Shortcut
The menu alternatives are numbered and can be accessed directly by pressing the respective keys on the numbered keypad on the left side of the audio panel. ...

Limitations
Even if a fairly small section of the screen image appears to be obstructed, this may mean that a relatively large area behind the vehicle is hidden and objects there may not be detected until the ...