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Automatic arming
The vehicle is armed immediately after switching the ignition to the off
position.
The theft indicator will flash every
two seconds to act as a theft
deterrent when the vehicle is
armed.
Automatic disarming
The vehicle is disarmed immediately after the ignition is turned to the on
position.
The theft indicator will illuminate for three seconds and then go out. If
the theft indicator stays on for an extended period of time or flashes
rapidly, have the system serviced by your authorized dealer.
Replacement Integrated Keyless Transmitters (IKT) and coded keys
Note:Your vehicle comes equipped with two Integrated Keyhead
Transmitters (IKTs). The IKT functions as both a programmed ignition
key that operates all the locks and starts the vehicle, as well as a remote
keyless entry transmitter. A maximum of eight coded keys can be
programmed to your vehicle; only four of these eight keys can be IKTs
with remote entry functionality.
If your IKTs or standard SecuriLock™ coded keys are lost or stolen and
you don’t have an extra coded key, you will need to have your vehicle
towed to an authorized dealer. The key codes need to be erased from
your vehicle and new coded keys will need to be programmed.
Replacing coded keys can be very costly. Store an extra programmed key
away from the vehicle in a safe place to help prevent any
inconveniences. Please visit an authorized dealer to purchase additional
spare or replacement keys.
Programming spare keys
You can program your own Integrated Keyhead Transmitters or standard
SecuriLock™ coded keys to your vehicle. This procedure will program
both the engine immobilizer keycode and the remote entry transmitter
portion of the IKT to your vehicle.Note:A maximum of eight coded
keys can be programmed to your vehicle; only four of these eight can be
IKTs with remote entry functionality.
2009 MKZ(378)
Owners Guide
USA(fus)
Locks and Security
98
Page 101 of 292

•Press the 7•8 and 9•0
controls on the keyless entry pad
at the same time to lock the
doors (driver’s door must be
closed).
There is a 20 second countdown when any of the above actions occur
before the vehicle becomes armed.
Each door, the hood or the trunk is armed individually, and if any are
open, they must be closed for the system to enter the 20 second
countdown.
The turn signal lamps will flash once when all doors, the hood and the
trunk are closed indicating the vehicle is locked and entering the
20 second countdown.
Disarming the system
You can disarm the system by any of the following actions:
•Unlock the doors by using the remote entry transmitter portion of
your Integrated Keyhead Transmitter.
•Unlock the doors by using your keyless entry pad.
•Unlock the driver’s door with a key. Turn the key full rearward
(toward the rear of the vehicle) to ensure the alarm disarms.
•Turn ignition to the 3 (on) position with a valid SecuriLock™ key.
•Press the panic control on the remote entry transmitter portion of
your IKT. This will only shut off the horn and turn lamps when the
alarm is sounding. The alarm system will still be armed.
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, the hood or the trunk is opened without using the door key,
keypad or the remote entry transmitter portion of your IKT.
•The ignition is turned to the 3 (on) position with an invalid
SecuriLock™ key.
2009 MKZ(378)
Owners Guide
USA(fus)
Locks and Security
101
Page 289 of 292

Fluid capacities .........................280
Foglamps .....................................38
Four-Wheel Drive vehicles
driving off road .......................203
Fuel ............................................264
calculating fuel
economy ............................72, 269
cap ...........................................266
capacity ...................................280
choosing the right fuel ...........267
comparisons with EPA fuel
economy estimates .................272
detergent in fuel .....................268
filling your vehicle with
fuel ...........................264, 266, 269
filter, specifications ........263, 279
fuel pump shut-off switch .....212
improving fuel economy ........269
octane rating ...................267, 282
quality ......................................267
running out of fuel .................268
safety information relating to
automotive fuels .....................264
Fuel pump shut-off switch .......212
Fuses ..................................212–213
G
Gas cap (see Fuel cap) ............266
Gas mileage
(see Fuel economy) .................269
Gauges .........................................14
H
Hazard flashers .........................211
Headlamps ...................................37
aiming ........................................40
autolamp system .......................37
bulb specifications ....................42daytime running lights .............38
flash to pass ..............................39
high beam .................................39
replacing bulbs .........................44
turning on and off ....................37
Heating
heating and air conditioning
system .................................31, 33
Homelink wireless control
system ..........................................67
Hood ..........................................249
I
Ignition ...............................185, 282
Illuminated visor mirror .............53
Infant seats
(see Safety seats) .....................145
Inspection/maintenance (I/M)
testing ........................................274
Instrument panel
cleaning ...................................245
cluster ........................................10
lighting up panel and
interior .......................................39
J
Jack ............................................218
positioning ...............................218
storage .....................................218
Jump-starting your vehicle ......225
K
Keyless entry system .................95
autolock .....................................83
keypad .......................................95
locking and unlocking doors ....96
programming entry code .........95
2009 MKZ(378)
Owners Guide
USA(fus)
Index
289