Nissan LEAF 2023 Owners Manual
8.10.2.1. Anti-theft system
Use of a 4-digit radio PIN (Personal Identification Number) code, known only to the vehicle owner, effectively reduces the possibility of the audio unit being stolen. Without the PIN code the audio unit cannot be activated.
If force is used to try and remove the audio unit, the Anti-theft system activates and the audio unit is locked. The only way to unlock the audio unit is to enter the radio code number shown on an identification card supplied with the vehicle documentation.
The 4 digit radio code is shown on a card that you received with your vehicle documentation.
Record the 4 digit radio code on the “Security information” page at the end of this manual. Remove the security page and keep it in a safe location, not in the vehicle.
Contact a knowledgeable LEAF repairer such as a NISSAN certified electric vehicle dealer, if you do lose the 4 digit radio code of the audio unit.