Accessing the secret menu in a Peugeot 308 provides a glimpse into the vehicle's inner systems, useful for diagnostics and software checks. However, caution is advised, as these menus are designed primarily for technical service. For basic maintenance like resetting the service indicator, the standard procedure is recommended and safer. Always consult your Peugeot dealer if you are uncertain about any changes.
Press and hold the Music/Radio button (or the volume knob, depending on the model) for about 10 seconds until the screen goes black and the Peugeot logo reappears. Summary of Quick Codes Code / Holding Time SMEG Software/GPS Info Hold MENU (5s) NAC Expert Mode Hold MUSIC (4s) + 1111 All Screen Reset Hold MUSIC/Power (10s) All Service Reset Hold 000/Stalk + Ignition Hidden Menu - Peugeot Forums
Once you successfully navigate past the primary user screen, you can inspect several underlying layers of raw automotive technical properties: Hidden Module Function and Insight Provided peugeot 308 secret menu
Unlocking the Peugeot 308 Secret Menu: Hidden Features, Diagnostics, and Expert Tweaks
for approximately 5–10 seconds.
The secret menu is touch-responsive in the same way as the standard interface. Use:
If you continue holding the button or look for an input field on certain firmware versions, you will prompt a validation box asking for a code. : Enter 1111 to access "Expert Mode" or "Spy Mode". Accessing the secret menu in a Peugeot 308
The Peugeot 308 features hidden menus that vary depending on your infotainment system (SMEG, NAC, or RCC) and the vehicle generation. These "secret" menus are primarily used for system diagnostics, checking software versions, and performing resets. 1. Service/Diagnostic Menu (SMEG & NAC Systems)