2008 Toyota Highlander Navigation Manual - Page 236

OTHER FUNCTIONS D Changing the security code The security code is 4 digits and the default is "0000". Change a new code that is hard for other people to know. When you change the security code, don't forget the code. The dealers cannot unlock the security when you forget it. If you forget the security code, initialize your personal data. When you initialize it, not only the phonebook data but also the memory points in the navigation system, etc. will be deleted. (See "D Initializing the security code" on page 168.) 3. Input the current code. Each time you touch A, an inputted digit is deleted. 4. Input a new code. 1. Touch "Phone Book Lock". 5. Touch "Yes". 2. Touch "Change". 166