Bead
The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim.
See also:
Winter driving
   Important safety notes
WARNING  
If the vehicle becomes trapped in snow,
ensure that snow is kept away from the
exhaust pipe and from around the vehicle as
long as the engine is running ...
   
How the occupant classification system works
   The Occupant Classification System (OCS) 
categorizes the occupant on the frontpassenger 
seat by means of a weight sensor.
The front-passenger front air bag is 
deactivated automatically for cert ...
   
Driving with summer tires
   Observe the notes in the "Winter operation" 
section. ...
   
