SMART forfour Operating Instructions Manual page 131

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Alarm system*
Towing sensor
The activated alarm system triggers off
an alarm if one side of your vehicle is
raised.
If you lock your car with the remote con
trol, the towing sensor cuts in automati
cally after about 30 seconds, and cuts out
when the alarm system is deactivated.
6 16 On the move
Switching off towing sensor for transport
If you
are towing away your car or for example
loading it on an autorail train and
wish to lock the doors,
the towing sensor must be switched off
manually, as the vehicle's angle would
otherwise cause an alarm to be triggered
off.
Switching off towing sensor manually
Remove the car key.
Press the towing sensor switch.
> The indicator light in the switch
lights up.
Lock your car with the remote control.
Reactivating the towing sensor
The next time you lock the car with the
remote control, the towing sensor comes
on again.