FORD 2011 Focus v.2 - Manual (Page 86)

Pressing the power door unlock control within the 20 second prearmed
mode will return the vehicle to a disarmed state.
Triggering the anti-theft system
The armed system will be triggered if any door, trunk or the hood is
opened without using the key or the remote entry transmitter.
Locks and Security
86
2011 Focus (foc)
Owners Guide, 2nd Printing
USA (fus)