Mercedes-Benz S-Class 2020 Owner's Manual page 88

possible with that particular key. Activate the
function of the key so that all its functions will
again be available.
You can also deactivate the function of the key
to reduce the energy consumption of the key if
you do not use the vehicle or a key for an exten‐
ded period of time.
To deactivate: press the s button on the
#
key twice in quick succession.
The key indicator lamp flashes twice briefly
and lights up once.
To activate: press any button on the key.
#
% When the vehicle is started with the key in
the stowage compartment of the centre con‐
sole, the function of the key is automatically
activated ( page 200).
/
Removing/inserting the emergency key
Removing the emergency key
Press release button 1.
#
Emergency key 2 is pushed out slightly.
Fully remove emergency key 2.
#
Opening and closing
Inserting the emergency key
Insert emergency key 2 at marking
#
it engages.
% You can use emergency key
key to a key ring.
Replacing the key battery
& DANGER Risk of fatal injuries if batteries
are swallowed
Batteries contain toxic and corrosive sub‐
stances. Swallowing batteries may cause
severe internal burns within two hours.
85
3 until
2 to attach the