2010 Toyota Sienna Navigation Manual - Page 165

OTHER FUNCTIONS (b) All at once (vi) Setting the security When you set the security, you can prevent people from using some functions of the Hands−free system. It is useful when you leave your car with the hotel or you don't want others to see the data you registered. When you set or unlock the security, you have to input the security code. Be sure to change the default code when you use the security for the first time. 1. Touch "Delete All" on the "Outgoing Calls" or "Incoming Calls" screen. 2. Touch "Yes". 166