Arming the system

Arming the system  - Locks and Security - Lincoln MKX Owners Manual - Lincoln MKX

The system is ready to arm whenever the ignition is off. To arm the system, do one of the following:

Press the entry transmitter. control on the remote entry transmitter.

Note: If you press the twice on the remote entry control twice on the remote entry transmitter within three seconds, the horn will chirp once to let you know that all doors, the hood and the liftgate/trunk are closed. If any of these are not closed, the horn will chirp twice to warn you that they are still open.
Press the driver or passenger interior door lock control front door is open, then close the door. while a front door is open, then close the door.
Lock the doors using the intelligent access method (press the lock area in either front door handle).
Press and hold the 7 8 and 9 0 controls together on the keyless entry pad to lock the doors (drivers door must be closed).

After locking the doors using any of the methods above, the turn signal lamps will flash once indicating that the perimeter alarm is in the pre-armed mode and will become fully armed in 20 seconds.

When fully armed (after the 20 second pre-arm mode), any IA keys found inside the vehicle are disabled/inoperable and will not start the engine. Press them. button to re-enable them.

Disarming the system

To disarm the system, do any of the following:

Pressing the power door unlock control within the 20-second, pre-armed mode will disarm the system.
Unlock the doors by pressing unlock transmitter. on the remote entry transmitter.
Unlock the doors by using your keyless entry pad.
Enter the vehicle using intelligent access.
Press the panic control remote entry transmitter. The alarm on the remote entry transmitter. The alarm system will still be armed, but this shuts off the horn and turn lamps when the alarm is sounding.
Unlock the doors using a key. If you use this method the system will not disarm, but you will have an opportunity to disarm the vehicle once entered. See the Note following.

Note: If the drivers door is unlocked with a key, a chime will sound when you open the door and the message center will display TO STOP ALARM START VEHICLE. When this occurs, you will have 12 seconds to disarm the alarm using any of the actions above, otherwise the alarm will trigger.

Perimeter alarm issues

If there seems to be a potential perimeter alarm system problem with your vehicle, ensure ALL keys/remote entry transmitters are brought to your authorized dealer to aid in troubleshooting.

    See also:

    Maintenance and modifications
    The suspension and steering systems on your vehicle have been designed and tested to provide predictable performance whether loaded or empty and durable load carrying capability. For this reason, ...

    Signal indicator mirrors (if equipped)
    When the turn signal is activated, the outer portion of the appropriate mirror housing will blink. This provides an additional warning to other drivers that your vehicle is about to turn. ...

    Switching to normal cruise control
    You can manually change from adaptive cruise control (ACC) to normal cruise control through the message center. Refer to Message center in the Instrument Cluster chapter. If normal cruise control ...