Code Alarm TW-2 Owner's Manual page 17

ADDITIONAL ICONS THAT MAY BE DISPLAYED ARE:
If the arm/disarm chirp tones have been turned off at the vehicle, when you arm,
or disarm, the display will indicate this as shown, and there will be no arm/
disarm chirps at the transmitter. This is true if the transmitter is set for vibrate
mode.
When the vehicle is armed, and a door is opened, or ajar, the transmitter will chirp
3 times, the lights will flash, and then the display will flash as shown. When the
door is closed or the zone clears, the transmitter will chirp 1 time, and the display
will clear.
When the vehicle is armed, and the hood or trunk, is opened or ajar, the transmit-
ter will chirp 3 times, the lights will flash, and then the display will flash as shown.
When the hood or trunk is closed, or the zone clears, the transmitter will chirp 1
time, and the display will clear.
When the vehicle is armed, and the vibration sensor input is active, the transmit-
ter will chirp 3 times, the lights will flash, and then the display will flash as shown.
When the input or the zone clears, the transmitter will chirp 1 time, and the display
will clear.