Peugeot 308 Secret Menu <UPDATED × 2026>

Peugeot 308 “Secret Menu”: An Expressive Exploration

This report details the procedures required to access the "Secret Menu" (Engineering Mode/Diagnostic Mode) on the Peugeot 308. This menu provides access to vehicle system status, sensor diagnostics, screen calibration, and configuration settings not available through the standard user interface. Access methods vary significantly depending on the vehicle's infotainment generation.

1. Introduction

Disclaimer:

This report is for educational and diagnostic purposes only. The user assumes all liability for any damage caused to the vehicle's electronic systems. peugeot 308 secret menu

button (or the Setup button, depending on the variant) for about 5–10 seconds. What You’ll Find: System Version: Exact firmware and software versions for troubleshooting. GPS Status: Real-time satellite connection strength and coordinates. Hardware Diagnostics: Checks for internal system modules. Demo Mode: A mode used by showrooms to cycle through display features. 2. Digital i-Cockpit Customization (2022+ Models) button (or the Setup button, depending on the

: Often used as a confirmation code after entering other commands. SMEG Systems (Older 308 models, approx. 2013–2017): Press and hold the button or the button for 5 seconds until the screen changes. button (or the Setup button