Securilock Passive Anti-Theft System; Locking Doors With The Keyless Entry System - Mercury Grand Marquis 2002 Owner's Manual

Locks and Security
To release the trunk, enter the
factory-set code or personal code
(driver door unlocks) and press 5/6
within five seconds.
After the factory-set code or personal code has been entered, you can
unlock all doors (press 3/4) and release the trunk (press 5/6) as long as
the controls are pressed within 5 seconds of each other.

Locking doors with the keyless entry system

It is not necessary to enter the factory-set code prior to locking all doors.
To lock the doors:
Press 7/8 and 9/0 at the same time.
SECURILOCK
SecuriLock passive anti-theft system is an engine immobilization
system. This system prevents the engine from being started unless a
coded key programmed to your vehicle is used.
The SecuriLock
non-Ford aftermarket remote start systems. Use of these systems may
result in vehicle starting problems and a loss of security protection.
102
PASSIVE ANTI-THEFT SYSTEM
passive anti-theft system is not compatible with
3 4
1 2 5 6
3 4
1 2 5 6
7 8 9 0
7 8 9 0