2005 Toyota Land Cruiser Owners Manual - Page 286

If you lose your keys You can purchase a new key at your Toyota dealer if you can give them the key number and master key. Even if you lose only one key, contact your Toyota dealer to make a new key. If you lose all your master keys, you cannot make new keys; the whole engine immobilizer system must be replaced. See the suggestion given in "Keys" on page 10. You can use the wireless remote control system with the new key. Contact your Toyota dealer for detailed information. If your keys are locked in the vehicle and you cannot get a duplicate, many Toyota dealers can still open the door for you, using their special tools. If you must break a window to get in, we suggest breaking the smallest side window because it is the least expensive to replace. Be extremely cautious to avoid cuts from the glass. 273