User Manual - Page 89

For 2020 C-Class Sedan C 300.

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Indicator lamp 1 flashes when the ATA system
is armed.
The ATA system is deactivated automatically in
the following situations:
R
after unlocking the vehicle with the SmartKey
R
after pressing the start/stop button with the
SmartKey in the stowage compartment
(/ page 145)
R
after unlocking the vehicle using KEYLESS-
GO
%
When the MercedesBenz emergency call
system is active and the alarm stays on for
more than 30 seconds, a message is auto
matically sent to the Customer Assistance
Center (
/ page 322).
Deactivating the ATA
#
Press the %, & or p button on the
SmartKey.
or
#
Press the start/stop button with the Smart
Key in the stowage compartment
(/ page 145)
Deactivating the alarm using KEYLESS-GO:
#
Grasp the outside door handle with the
SmartKey outside the vehicle.
Opening and closing
89
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