Mercedes-Benz S 430 Operator's Manual page 103

Have the vehicle battery and the
battery connections checked
( page 408).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
Checking the battery
Press button ‹ or Œ.
Battery check lamp 5 comes on brief-
ly to indicate that the SmartKey with
KEYLESS-GO battery is in order.
!
If battery check lamp 5 does not
come on briefly during check, the
SmartKey battery with KEYLESS-GO is
discharged.
Replace the battery ( page 392).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
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If the battery is checked within signal
range of the vehicle, pressing the
button ‹ or Œ will lock or unlock
the vehicle accordingly.
Global locking using the lock button on
the trunk lid
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To prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
Controls in detail
Locking and unlocking
1 Lock button
Press lock button 1 on the trunk lid.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
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You can also lock the vehicle using the
lock button on an outside door handle
( page 58) or, vehicles with trunk lid
opening/closing system*,
KEYLESS-GO locking/closing switch
( page 109).
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