2009 Mazda CX-9 Owner's Manual - Page 338

Interior Comfort Rear Entertainment System 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 l Changing the Rating setting 1. Enter the password by pressing the number keys (0 to 9) or operating the select button up or down. l Parent lock is not available depending on the disc. The initial password setting (when purchased) is "0000". 2. Press the ENTER button. If the password is confirmed, the Rating change mode is displayed. NOTE Rating change: Parent lock level setting Country change: Setting for the country where the disc is being played. Password change: Registered password changes 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. 6-98