Mercedes-Benz GLS 2020 Operator's Manual page 68

66 Opening and closing
The tailgate
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If the vehicle is not opened within approximately
40 seconds after unlocking, it locks again. Anti-
theft protection is armed again.
Do not keep the SmartKey together with elec‐
tronic devices or metal objects. This can affect
the SmartKey's functionality.
Activating/deactivating the acoustic locking
verification signal
Multimedia system:
© Settings Vehicle
4 5 5
Activate or deactivate Acoustic
#
Activating/deactivating the panic alarm
Requirements:
The ignition is switched off.
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% The panic alarm function is only available in
certain countries.
To activate: press button
#
imately one second.
A visual and audible alarm is triggered.
To deactivate: briefly press button
#
Lock.
or
Press the start/stop button on the cockpit
#
(the SmartKey is inside the vehicle).
Changing the unlocking settings
Possible unlocking functions of the SmartKey:
Central unlocking
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Unlocking the driver's door and fuel filler flap
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To switch between settings: press the
#
Ü and ß buttons simultaneously for
approximately six seconds until the battery
check lamp flashes twice.
Options if the unlocking function for the driver's
door and fuel filler flap has been selected:
To unlock the vehicle centrally: press the
R
Ü button twice.
Vehicles with KEYLESS-GO: if you touch
R
the inner surface of the door handle on the
1 for approx‐
driver's door, only the driver's door and fuel
filler flap are unlocked.
1 again.
Deactivating the SmartKey functions
If you do not use the vehicle or a SmartKey for
an extended period of time, you can reduce the
energy consumption of the respective SmartKey.
To do so, deactivate the SmartKey functions.
To deactivate: press the ß button on the
#
SmartKey twice in quick succession.
The battery check lamp of the SmartKey
flashes twice briefly and lights up once.