Mitsubishi LANCER Owner's Manual page 123

Features and controls
F.A.S.T.-key take-out monitoring system
Type1
Type 2
3
When the ignition switch is in a position other than "LOCK
(PUSH OFF)", any of the doors are opened and the F.A.S.T.-
key is removed from the passenger compartment so that the ID
codes of the F.A.S.T.-key and the vehicle can no longer be ver-
ified, the warning display is displayed and the buzzer sounds 4
times as a warning.
NOTE
The F.A.S.T.-key take-out monitoring system does not
function if the F.A.S.T.-key is removed through a window
without opening a door. This setting can be changed.
See an authorized Mitsubishi Motors dealer for details.
The warning may display even if the F.A.S.T.-key is in the
operating range for starting the engine. The surrounding
environment or electromagnetic waves may make it
impossible to verify the ID codes of the F.A.S.T.-key and
vehicle.
3-28
Key lock-in prevention system
N00559800131
Type 1
Type 2
When the ignition switch is in the "LOCK (PUSH OFF)" posi-
tion, the F.A.S.T.-key is left in the passenger compartment, all
the doors are closed, and someone tries to lock the vehicle by
pressing the driver's or front passenger's door lock/unlock
switch, the warning display is displayed and the buzzer sounds
for about 3 seconds as a warning, and the doors cannot be
locked.
If all the doors are manually locked and closed while the igni-
tion switch is in the "LOCK (PUSH OFF)" position and the
F.A.S.T.-key is left in the car, the doors will automatically
unlock and a buzzer will sound for about 3 seconds.
N00559900103