Subaru 2015 BRZ Owner's Manual page 215

Audio Operations
3
Touch "0".
• If you make a mistake, touch
Touch for 1 second or more to delete the digits continuously.
4
Touch (Done).
Done
5
Touch .
• An 8-digit alphanumeric code appears.
214 Audio and Visual
to delete 1 digit at a time.
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Setting the parental lock
1
Touch (Settings).
Settings
2
Touch (Parental Lock).
Parental Lock