Mercedes-Benz 2008 S550 Operator's Manual page 335

Controls in detail
Locking and unlocking
Global locking: Press button ‹.
With the trunk and both doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing button Πonly unlocks the driver's
door and the fuel filler flap.
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds un-
til battery check lamp 5 ( page 332)
flashes twice.
334
The SmartKey will then function as fol-
lows:
Unlocking driver's door and fuel fill-
er flap: Press button Πonce.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
For more information, see "Factory
setting" ( page 333).
The locking knob in the driver's
door moves up.
The anti-theft alarm system is dis-
armed.
Global unlocking: Press button Œ
twice.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Global locking: Press button ‹.
With the trunk and both doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting: Press
and hold buttons Œ and ‹ si-
multaneously for about 5 seconds until
battery check lamp 5 ( page 332)
flashes twice.