Vizio L13 User Manual page 13

Using the OSD Functions
To enable V-Chip functions please enter 0000 if you
V-Chip setting:
have not assigned the special password.
Use remote control arrow keys to select V-chip blocking to set paren-
tal guidelines on or off.
Select MPAA/TV rating to set rating grade.
Use remote control arrow keys to move cursor to desire rating grade,
when the text is Red, press enter key to set block or unblock
condition.
New PIN-code you can change the password.
Use remote control to enter 4 digit number, then press enter.