If the alarm cannot be deactivated with the remote control key, e.g. if the key's battery is discharged - the car can be unlocked, disarmed and the engine started as follows:

The alarm indicator shows alarm system status.

Automatic re-arming of the alarm prevents the car being left with the alarm disarmed unintentionally.

In certain countries the alarm is activated after a certain delay if the driver's door was opened and closed but the car was not re-locked.

When the alarm is triggered a siren sounds and all direction indicators flash.