The Peugeot 308 (typical models: 2014–2024 generations) includes a manufacturer diagnostics/service menu and a user-accessible hidden menu in the infotainment and instrument clusters. These menus expose vehicle status, configuration toggles, and basic diagnostics. Below is a concise, practical guide to commonly used hidden menus, how to access them, what you can safely change, and important warnings.
Most modern Peugeot 308s (2014–2021) use either the SMEG+ (entry-level) or NAC (Connected Navigation) head unit. The newest 308 (2022+) runs on the i-Connect Advanced system. Each has its own hidden portal. peugeot 308 secret menu
Steps:
If you are trying to read fault codes or execute a service light countdown reset, let me know: Hidden Menu - Peugeot Forums Peugeot 308 hidden/secret menu — how to access
Next time you are stuck waiting for the ferry or sitting in a parking lot, try the button sequence. Watch the satellites populate on the sky chart. Test your speakers. Just remember: Look, but don't touch the configuration settings. The real secret is that sometimes, the best feature is knowing exactly how your car is performing—right down to the last hertz of audio and the last decibel of the radio. Start the engine (or put ignition on)