See also:

Upholstery material care
Vacuum regularly with a vacuum cleaner. If they are very dirty, e.g., beverage stains, use a soft sponge or microfiber cloth with a suitable interior cleaner. Clean the upholstery down to the se ...

Adjusting the volume
Turn the knob during an announcement. The volume remains constant even if the volume of other audio sources is changed. The volume is stored for the remote control currently in use. Not ...

Note
If equipped with Business mobile phone preparation equipment package or without mobile phone preparation. ...