Function of ATA (Anti-theft Alarm system)
If the ATA system is primed, a visual and audible alarm is triggered in the following situations:
ATA is automatically primed after approximately five seconds in the following situation:
after the vehicle has been locked with the key
When the ATA system is primed, indicator lamp 
flashes in the overhead control panel.
ATA is automatically deactivated in the following situations:
After unlocking the vehicle with the key.
After pressing the start/stop button with the key inside the vehicle.