Toyota PRIUS 2007 Important Information Manual page 244

27p302
Changing the security code
D
The security code is 4 digits and the
default is "0000".
1. Touch the "Phone Book
switch.
224
27p303
2. Touch the "Change" switch.
Lock"
27p304
3. Input the security code.
Choose a new code that is hard for other
people to know.
When you change the security code, do
not forget the code. The dealers cannot
unlock the security when you forget it.
If you forget the security code, initialize
your personal data. (See "Initializing the
security code" on page 226.)
Each time you touch "A", an inputted digit
is deleted.