Not something you really want to be doing but it’s not as simple as just removing the key from the dash with the introduction of the Smart Key for 2010:

START/STOP WHILE MOVING
Switching off the engine
With the gear selector in position P, press the engine START/STOP button. The engine will
stop and the ignition system will return to convenience mode.
Caution: It is not advisable to switch off the engine while the vehicle is moving. However,
if a situation arises where engine switch off is urgent, the following procedure applies:

1. Press the START/STOP button for a total of two seconds, or

2. Press the START/STOP button twice within two seconds.
With either method the warning message ‘Engine Stop Button Pressed’ will be displayed

Rolling restart
A rolling restart can be initiated by selecting transmission neutral position N and pressing
the engine START/STOP button. Now select D.

Although it can be done through the instrument panel menu as well, the unlocking mode can be changed from the Smart Key itself.  It can be unlocked using either Single or Multi-point entry. Single-point entry is a security feature that unlocks only the driver’s door when the unlock button is pressed. To change from Single to Multi-point entry (or vice versa), press both the lock and unlock buttons simultaneously for three seconds. The hazard warning lamps will flash twice to confirm the change.