Mercedes-Benz 2009 SL-Class Operator's Manual page 75

Disabling tow-away alarm
To prevent triggering the tow-away alarm, dis-
able the tow-away alarm feature before tow-
ing the vehicle, or when parking on a surface
subject to movement, such as a ferry or auto
train.
Tow-away alarm off switch
1
Indicator lamp
2
X
Switch off the ignition.
X
Remove the SmartKey from the starter
switch.
i You cannot disable the tow-away alarm
feature with the ignition switched on.
X
Press switch 1.
Indicator lamp comes on briefly.
2
X
Exit and lock the vehicle.
The tow-away alarm remains disabled until
you lock the vehicle again.
Canceling the alarm
To cancel the alarm, do one of the following:
X
Insert the SmartKey in the starter switch.
X
Press the or button on the
k j
SmartKey.
In vehicles with KEYLESS-GO:
X
Grasp an outside door handle.
The SmartKey must be within 3 ft (1 m) of
the vehicle.
X
Press the KEYLESS-GO start/stop button.
The SmartKey must be inside the vehicle.
Safety and security
Anti-theft systems
73
Z