nüvi 310/360 Owner’s Manual basIc operatIonLocking Your nüviGarmin Lock™ is an anti-theft feature. You can set a four-digit PIN (personalidentification number) and a security location; then every time the nüvi is powered onyou must enter the PIN or drive to your security location. Select any location, such asyour home or office, for your security location. Write down your PIN, and keep it in asafe place. If you forget your PIN, you can go to your security location to unlock thenüvi.To help prevent theft of the nüvi, apply the Garmin Lock sticker to the inside of avehicle window, and do the following:1. Flip up the GPS antenna.2. On the Menu page, touch Settings > System.3. Touch the button next to Garmin Lock. Touch OK.4. Enter a four-digit PIN. Touch Yes to accept the PIN.5. Touch OK. Drive to a security location, and touch Set.6. Each time you turn on the nüvi, enter the four-digit PIN or drive to the securitylocation (with the antenna up).note: If you forget your PIN and your security location, you must sendyour nüvi to Garmin to get it unlocked.