Mercedes-Benz 2007 SL 55 AMG Operator's Manual page 105

Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressing Πonly unlocks the driver's
door, interior lockable storage compart-
ments and the fuel filler flap.
Press and hold buttons Πand
‹ simultaneously for about
6 seconds until battery check lamp 5
flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver's door and fuel filler
flap
Press button Πonce.
All turn signals flash once. The locking
knob in the driver's door moves up.
The anti-theft alarm system is disarmed.
104
Global unlocking
Press button Πtwice.
All turn signals flash once. The locking
knobs in the doors move up. The anti-theft
alarm system is disarmed.
Global locking
Press button ‹.
All turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 6 seconds
until battery check lamp 5
( page 102) flashes twice.
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey, then the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle battery is drained.
Check the batteries in the SmartKey
( page 105) and replace them if necessary
( page 395).
Use the mechanical key to unlock the driv-
er's door ( page 391) and the trunk
( page 117).
Have the vehicle batteries and their connec-
tions checked ( page 414).
Use the mechanical key to lock or unlock the
doors ( page 393).
If the SmartKey is malfunctioning, contact an
authorized Mercedes-Benz Center.