Peugeot 308 Secret Menu Jun 2026

This comprehensive guide covers everything required to safely access, navigate, and utilize the built-in engineering modes across different generations of the Peugeot 308 infotainment ecosystem. Understanding the Systems: Which Unit Do You Have?

Depending on the year of your Peugeot 308, you likely have one of three infotainment systems: , or the newer 1. SMEG & SMEG+ Systems (Typical for 2013–2017 Models) These systems are common in early second-generation 308s. Access Method

Press and hold the Settings gear icon or the "Musical Note" button for 10 seconds. This usually triggers a screen displaying the software version and map data.

If you continue holding the button or look for an input field on certain firmware versions, you will prompt a validation box asking for a code. : Enter 1111 to access "Expert Mode" or "Spy Mode". peugeot 308 secret menu

: A password or pin prompt screen will appear. To proceed into the "Expert Mode", enter standard default engineer codes such as 1111 or 0000 via the numeric keyboard. 3. The Digital Cheat Code Box

Disables active spy logger utilities to clear up standard system RAM allocation. SIMU_NAV

The screen will flicker. Ignore the normal settings menu. After a long press, the screen will switch to a dark green or blue text-based menu with technical terms. SMEG & SMEG+ Systems (Typical for 2013–2017 Models)

There are two primary methods used to access hidden menus on the Peugeot 308, depending on the model year and installed audio system.

| Menu Name | Information Provided | |-----------|----------------------| | | Live CAN bus data: coolant temperature (in °C), battery voltage, fuel pressure, instantaneous fuel consumption (digital). | | GPS Info | Number of satellites in view, HDOP (horizontal dilution of precision), latitude/longitude, GPS time. | | Screen / Display Tests | LCD color bars, dead pixel detection, backlight test, touchscreen crosshair calibration. | | Audio Test | Speaker phase, left/right/fader balance test tones, amplifier status. | | Version Information | Exact part numbers, hardware revision, software version, map version (for navigation units), Bluetooth stack version. | | ECU List | List of all electronic control units (BSI, ABS, BSI, etc.) and their communication status (OK/NO COMM). | | Vehicle VIN | Displays the stored VIN – useful for verifying configuration. |

the physical "MENU" or "SRC" button (usually for 5–10 seconds). If you continue holding the button or look

The Peugeot 308 secret menu is a powerful tool hidden in plain sight. By holding the menu button on the SMEG system, owners can check software versions, map data, and GPS functionality. It is a fantastic way to understand the health of your infotainment system, but it should be approached with caution to avoid accidental system corruption.

Simulates preset active guidance routes without actually moving the vehicle. Resetting the Service Maintenance Light

so the infotainment screen is fully booted up.

Watch this short walk-through to see how to trigger the hidden system menu on Peugeot SMEG touchscreens: 2. For NAC and RCC Systems (Modern Layouts)