October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Manual Override Mode & Tamper Alert Mode

The VTSS will not arm if the doors are locked using the key or the manual lock control (manual override mode). If horn sounds 3 times when either front door is unlocked, the alarm was activated/triggered (tamper alert mode).