Mazda 2011 CX-9 Owner's Manual page 360

Viewing can be restricted by setting the
parent lock level.
For example, if the level is set to 6, level 7
or higher viewing is locked and cannot be
played.
NOTE
Parent lock is not available depending on
l
the disc.
The initial password setting (when
l
purchased) is "0000".
Rating change: Parent lock level setting
Country change: Setting for the country
where the disc is being played.
Password change: Registered password
changes
Rear Entertainment System
Changing the Rating setting
1. Enter the password by pressing the
number keys (0 to 9) or operating the
select button up or down.
2. Press the ENTER button.
If the password is confirmed, the
Rating change mode is displayed.
NOTE
The setting cannot be changed without the
correct password. Note down the password so
you don't forget it.
3. Select the desired parent lock level and
press the ENTER button to set.
Interior Comfort
6-107