See also:

Remote control key
System which permits central unlocking or locking of the vehicle using the lock or from a distance. It is also used to locate and start the vehicle, as well as providing protection against theft. ...

Horn
Audible warning system to alert other road users to an imminent danger. Press the central part of the multifunction steering wheel. Use the horn moderately and only in the following circumstances: ...

Instruments and controls
1. Audio and telematic system steering mounted controls. 2. Steering lock and ignition. 3. Wiper / screenwash / trip computer control stalk. 4. Instrument panel. 5. Driver's airbag. Horn. ...