See also:

Current speed in km/h (U.S. models only)
This function provides the driver with an instantaneous conversion of the car's current speed from mph to km/h. ...

The front airbag system
The front airbags supplement the three-point seat belts. For these airbags to provide the protection intended, seat belts must be worn at all times. The front airbag system includes gas generator ...

Disc eject
For reasons of traffic safety, an ejected disc must be removed within 12 seconds or it will be automatically drawn back into the slot. ...