See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Managing the favorites
Activating/deactivating the favoritesFavorites can be activated and deactivated globally and individually. 1.  "Satellite radio" 2.  "Manage favorites" 3.  Sel ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...