1996 Mercury Sable Owner's Manual - Page 158

Arming, disarming and resetting your perimeter anti-theft system (If equipped) from the keyless entry pad If your vehicle is equipped with the optional factory installed anti-theft system, the keyless entry system will arm it when you use the 7/8 and 9/0 keys to lock the doors, and will disarm or reset a triggered anti-theft alarm when you enter in the five digit code to unlock the driver's door. NOTE: Doors and the liftgate must be fully closed for the anti-theft system to arm. Refer to the Anti-Theft System section in this chapter for more details. Autolock (If equipped) The Autolock feature is part of your remote keyless entry system and is enabled at the factory. With the Autolock feature enabled, all of the doors will automatically lock when: u the vehicle doors and liftgate are fully closed u the ignition key is turned to the ON position u the brake pedal is pressed u you shift through (Reverse) u one second has elapsed after the brake pedal is released The Autolock feature will repeat when: u a door is opened and then all doors and liftgate are closed u the brake pedal is released 131