See also:

Audible/visual alarm signal
• An audible alarm signal is given by a battery powered siren. The alarm cycle lasts for 30 seconds. • The visual alarm signal is given by flashing all turn signals for approximately 5 minutes ...

Removing the key blade
Slide the spring loaded catch to the side. Pull the key blade straight out of the remote key. ...

Arming the alarm
Press the Lock button on the remote key. One long flash of the turn signals will confirm that the alarm is armed. Alarm confirmation settings can be changed in MY CAR, under Car settings  - ...