Peugeot 308 Secret Menu » < Essential >

You might be wondering: Why bother with this menu if I have an OBD2 scanner?

| Feature | OBD2 Scanner (ELM327) | Peugeot 308 Secret Menu | | :--- | :--- | :--- | | Engine Fault Codes | Yes | Yes (Basic) | | ABS / Airbag Codes | Expensive models only | No (Menu only shows infotainment/BSI) | | Screen Calibration | No | Yes | | GPS Signal Strength | No | Yes | | Radio Antenna Test | No | Yes | | Real-Time Battery Voltage | Yes (with ignition on) | Yes (with ignition off) |

Verdict: The secret menu is better for infotainment and electrical problems. OBD2 is better for engine and safety system faults. Use both. peugeot 308 secret menu

Disclaimer: Accessing this menu is safe if you look only. Changing values (e.g., vehicle configuration, DRL settings) can alter your car's behavior or void warranties. Proceed at your own risk.

The most common method for the Peugeot 308 (SMEG or NAC touchscreen systems) is as follows: You might be wondering: Why bother with this

Note: On newer 308s (2021+), the process often requires holding the physical "Phone" button while tapping the "Settings" touch button.

The Peugeot 308’s touchscreen interface and digital driver’s display are designed for consumer functionality—audio, navigation, climate, and vehicle settings. However, Peugeot engineers embedded a series of non-public menus for development, debugging, and production-line testing. Accessing these menus requires specific, non-intuitive sequences of button presses. While not intended for daily use, these menus provide valuable information ranging from GPS satellite count to ECU software versions. Note: On newer 308s (2021+), the process often

Applicable to: Earlier 308 models (T7) or models with smaller non-touch navigation screens.