See also:

Screw thread
Push out the cover by pressing on the top edge. ...

DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...

Locking and unlocking
Pressing the buttons locks and unlocks the doors and the tailgate when the front doors are closed, but they are not secured against theft. The fuel filler flap remains unlocked. ...