Peugeot 308 Secret Menu ((top))

In the NAC system’s engineer menu, go to "Logos & Splashscreens." Type in the on-screen keyboard. A hidden animation of the original 308 design sketches from the Lausanne design center will play.

the button firmly for approximately 5 to 10 seconds.

When the prompt appears, enter the code to access "Spy Mode" or "Expert Mode". SMEG/WipNav Systems (Older Models): peugeot 308 secret menu

Accesses various internal logs and system-level diagnostic lists. 2. Service Spanner Reset Menu

For example, altering parameters like the vehicle's underlying CAN-bus type (e.g., changing a CAN2010 profile to a CAN2004 setting) can break the display scaling. This can result in reversed rearview camera feeds, non-functional air conditioning layouts, or missing parking sensor graphics. . In the NAC system’s engineer menu, go to

(usually marked with "000" or a wrench) on the instrument cluster. Turn the ignition (do not start the engine).

button for several seconds while the ignition is on until the service menu appears. Expert Mode : On some versions, holding the When the prompt appears, enter the code to

Treat the menu as a read-only archive. Look at the data, note your firmware versions, but avoid pressing "Reset to Factory Default" or "Clear Config" unless you have a backup file or a dealer diagnostic tool handy.

Have you found a different sequence or a new hidden feature in your Peugeot 308? Share it with the owner forums, but always drive safely.