Peugeot 308 Secret Menu

A "Hidden Service Menu" will appear, displaying technical data.

The Peugeot 308 (specifically models with the infotainment systems) features an "Engineering Mode" or secret menu used by technicians to view system diagnostics, GPS signal strength, and firmware versions. Accessing these menus typically requires a combination of button presses and a passcode. Mittns Peugeot Forum How to Access the Secret Menus peugeot 308 secret menu