Mitsubishi ECLIPSE Owner's Manual page 119

Features and controls
Alarm stage
The alarm will be activated if any of the following occur while
the vehicle is parked and the system is armed.
1. One of the doors and the rear hatch or trunk lid is opened
without the remote control transmitter.
2. The engine hood is opened from the outside.
Type of alarm
When the alarm is activated:
1. The headlights blink on and off for 3 minutes.
After 3 minutes the headlights automatically shut off.
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2. The horn will sound intermittently for 3 minutes.
N00510400060
Horn sounds!
Headlights blink on and off!
NOTE
The alarm will continue to operate for 3 minutes. At the
end of that period, the alarm will automatically shut off to
save battery power. The system will then be rearmed until
the proper disarming step is taken.
Alarm deactivation
The alarm can be deactivated in the following ways.
By using the remote control transmitter to lock or unlock
the door, the rear hatch or trunk lid.
Turn the ignition key to the "ON" position.