BSI stands for Boîtier de Servitude Intelligent (Intelligent Fuse Box). This is the central computer of the Peugeot 308. Performing a “deep reset” solves 80% of weird electrical glitches (windows not working, radio frozen, wipers acting strangely). This is the ultimate secret menu.
: Turn on the ignition and let the main infotainment system boot completely. Locate the physical MENU button (or the touch-sensitive Gear/Settings icon in the top right corner of the glass screen).
When you first turn the key, you see the Peugeot lion and then your speed. But there is a hidden self-test mode.
piano key for approximately four seconds prompts a code entry window. Common codes like peugeot 308 secret menu
However, the exact steps vary slightly depending on your head unit.
In this article, we will walk you through exactly how to unlock the Peugeot 308 secret menu, what you will find inside, and how to use it to diagnose faults, test your hardware, and even tweak hidden vehicle settings.
Cycles through monochromatic screens (Solid Red, Green, Blue) to check for dead pixels or backlight bleeding. The Risk of "Cheat Codes" and Advanced Toggles This is the ultimate secret menu
The high-resolution Connected Navigation units found in late second-generation facelifts and third-generation models. How to Access the Secret Menu by Generation
Access calibration tools if the screen is unresponsive or inaccurate.
Beyond the hidden digital menus, the Peugeot 308 (specifically the i-Cockpit models) has several hidden or "shortcuts" features. When you first turn the key, you see
Infotainment screens can lag or lag violently in the summer. The engineering menu features a hardware health tab showing the live temperature of the CPU and internal amplifier. If your screen is cutting out, you can check this page to see if the unit is overheating. 3. GPS Satellite Telemetry
: If the standalone button hold does not respond, press and hold both the Music and Navigation buttons simultaneously for 5 seconds until the screen reboots into "Expert Mode". Inside the Secret Menu: Features and Capabilities
Select "HMI Test" (Human Machine Interface).