Select "Settings" from the touchscreen menu.
: To view raw satellite data and firmware data, press and hold the SRC/Menu button or the Navigation icon/button firmly for 5 to 10 seconds.
The steps to access these menus can vary based on your specific .
A will appear, displaying technical data.
This mode provides a readout of sensor data rather than hardware tests. peugeot 308 secret menu
: Displays precise build numbers for the operating system, internal firmware, map versions, and display controller. This is useful for checking if a manual software update is required to resolve bugs like Bluetooth drops or sluggish touch screen feedback.
Next time your Bluetooth acts up, or you simply want to check if your car's software is running the latest build, skip the trip to the mechanic and use these simple button holds to unlock the hidden side of your Peugeot 308.
: Often used to view specific diagnostic screens after an initial code has been entered. Available Information Once inside, the menu typically allows you to view: System Information : Exact firmware and map versions.
: 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. Select "Settings" from the touchscreen menu
See how many satellites the car is currently tracking.
Locate the physical (Source) button or the primary Menu/Settings touch button on the bezel.
: 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
For an alternative method on some NAC/RCC systems, you can generate a system log by pressing and holding the for about 10 seconds until you hear a beep. A will appear, displaying technical data
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: Monitor real-time satellite signal strength, GPS coordinates, and internal sensor data like gyro voltage. Diagnostic Logs
If a numeric prompt appears asking for a parameter string, you can access the "Cheat Code" overlay by inputting specific strings such as 1111 or 1122 . Available Features in the Secret Menu
Method 1: The SMEG / SMEG+ Systems (Roughly 2013–2017 Models)
The secret menu is a low-level diagnostic interface built into your infotainment system. It is primarily used by engineers during production and by dealership technicians to quickly verify system health.