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SecuriLock, also known as Passive Anti-Theft System (PATS), is Ford Motor Company's immobilizer technology. In 1996 the technology started showing up on select models of Ford, Lincoln, and Mercury vehicles. The keys have a radio frequency transponder embedded in the plastic Head with a unique electronic identification code.


When the vehicle is started, the on-board computer sends out an RF signal which is picked up by the transponder in the key. The transponder then returns a unique RF signal to the vehicle's computer, giving it confirmation to start and continue to run. This all happens in less than a second. If the on-board computer does not receive the correct identification code certain components, such as the fuel pump and on some the starter, will remain disabled.

Replacement keys[edit]

Replacement keys can be purchased through the dealer or a 3rd party. The key must be compatible with the vehicle. Before the key can be used to start the vehicle it must be programmed. Programming can be done by inserting the original key(s) as well as the new key into the ignition.

With PATS I, programming of a new key can be done with just one working key. With PATS II, two working keys are required for reprogramming. This helped ensure that only the owner of the vehicle can make duplicate keys. If a second working key is not available programming will need to be performed by the dealer.


For the 1999 model year, all Ford Motor Company vehicles equipped with the Passive Anti-Theft System use the PATS II system. The PATS II system was introduced on roughly half of the PATS equipped vehicles for the 1998 model year. The other half of the PATS equipped vehicles for the 1998 model year were equipped with the PATS I system. Many 2000 and later Ford vehicles use the E-PATS system, which uses an encrypted transponder in the key.

List of equipped vehicles[edit]

PATS I equipped vehicles include the following.

  • 1998 Contour V6 Duratech
  • 1996-1997 Mustang
  • 1996-1997 Taurus LX and SHO
  • 1997-1998 Expedition
  • 1997 Mark VIII
  • 1998 Mystique LS
  • 1997-1998 Navigator
  • 1996-1997 Sable (Not all were included.)

PATS II equipped vehicles include the following:

  • 2003-2005 Aviator
  • 2002-2003 Blackwood
  • 2006 Mark LT
  • 1998-2007 Mustang
  • 1998-2006 Taurus LX, SE, and SHO
  • 1998-2007 Explorer
  • 1999-2006 Expedition
  • 2000-2005 Excursion
  • 2001-2006 Escape
  • 2000-2007 Focus
  • 1998-2002 Continental
  • 1998-2006 Crown Victoria
  • 1999-2004 Ranger V6 (In 2006, all Rangers were included.)
  • 1999-2014 F150 and F250 LD
  • 1999-2000 Contour V6
  • 1999-2004 Windstar
  • 1999-2006 Navigator
  • 1998-2006 Town Car
  • 2005-2006 Mariner
  • 2003-2005 Marauder
  • 1999-2002 Cougar
  • 1998-2006 Grand Marquis
  • 1999-2006 LS6 and LS8
  • 2006 Milan
  • 1997-1998 Mark VIII
  • 1998-2007 Mountaineer
  • 2005-2006 Montego
  • 2004-2006 Monterey
  • 1999-2000 Mystique LS
  • 1998-2005 Sable
  • 2002-2005 Thunderbird
  • 2006–present Fusion
  • 2005–present Freestyle
  • 2004–present Freestar
  • 2005-2006 GT
  • 2005-2007 Five-Hundred
  • 2006 Zephyr/MKZ
  • 2010 Ford Figo


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/SecuriLock — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.

80 news items

Appleton Post Crescent
Tue, 30 Jun 2015 05:00:00 -0700

... automatic headlamps, high intensity discharge (HID) headlamps, tire pressure monitor, power adjustable pedals with memory, remote keyless entry, SecuriLock theft deterrent system, traction control, AdvanceTrac electronic stability control, alarm ...
Appleton Post Crescent
Mon, 08 Jun 2015 05:00:00 -0700

... remote keyless entry, perimeter alarm, SecuriLock passive anti-theft system, side-impact door beams, trailer sway control, rain-sensing, speed sensing intermittent windshield wipers, front tow hooks, LED running lamps, Bi-functional high intensity ...

Appleton Post Crescent

Appleton Post Crescent
Fri, 24 Apr 2015 09:18:45 -0700

... with push button start, alarm system, MyKey, SNYC communications system, limited slip rear axle, automatic high intensity discharge headlamps with wiper activation, Securilock passive anti-theft system, tire mobility kit, and tire pressure ...

Appleton Post Crescent

Appleton Post Crescent
Tue, 24 Mar 2015 05:00:00 -0700

... driver's knee airbag, four-wheel disc brakes with anti-lock, brake assist, traction control, AdvanceTrac with roll stability control, torque vectoring control, curve control, battery saver, SYNC with My Ford communications system, SecuriLock anti ...

AmmoLand Shooting Sports News

AmmoLand Shooting Sports News
Wed, 27 May 2015 12:07:30 -0700

Safety doesn't stop there with an advanced security pack that includes SecuriLock® passive anti-theft system and inclination/intrusion sensors. SkinzWraps added even more features to the already remarkable truck including a made in America TruckVault.
Tue, 10 Mar 2015 06:53:53 -0700

... lb-ft @ 2,250 rpm. Fuel Economy: 14 City/19 Hwy/16 Combined (EPA estimated)(EPA City/Hwy/Combined). Options: Sterling gray paint, keyless-entry pad, privacy glass, rearview camera, reverse-sensing system, running board, SecuriLock anti-theft system ...

Top Speed

Top Speed
Fri, 29 May 2015 10:50:58 -0700

The growling Fiesta ST is finally arriving in American Ford dealerships! After a long run-up and many tweaks to the global three-door's interior technology and body style, this five-door pocket-rocket is finally on the Ford order books with a starting ...
Fri, 13 Feb 2015 07:21:20 -0800

... Sync ($540); 3.31 limited slip axel ($325); dual heavy duty batteries ($295); reverse park aid ($295); rearview camera ($250); passenger door running board ($160); charcoal cloth side airbags ($150); user defined upfitter switches ($85); SecuriLock ...

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