Peugeot 308 Secret Menu Jun 2026

Press the Start/Stop button once without touching the pedals to power the dash.

These menus are intended for diagnostic purposes. Changing settings within these "expert" modes can occasionally lead to system instability or accidental data deletion.

Discover how to access these hidden menus across different model years, identify what functions you can explore safely, and learn how to use diagnostic cheat codes to troubleshoot your vehicle. Unlocking the Secret Menu: Step-by-Step

Verify the exact firmware version of your infotainment system for potential updates.

For vehicles equipped with physical control fascias integrated into the center stack, the method shifts away from touch mechanics. peugeot 308 secret menu

While holding, turn the ignition on (don't start the engine). A countdown from 10 to 0 will appear.

While the menu is "read-only" regarding critical engine mapping, improper use can lead to system instability.

Locate the button on the infotainment display. Select the Diagnostic tab.

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. Press the Start/Stop button once without touching the

: Press and hold the Music/Media piano key (or the toggle switch) for about 6 seconds .

From here, you can see the firmware version, Bluetooth version, and map data.

Access methods, functionality, and risks of the dealer diagnostic/hidden menu on Peugeot 308 vehicles (Focus on T9 Generation 2013–Present).

Accesses various internal logs and system-level diagnostic lists. 2. Service Spanner Reset Menu Discover how to access these hidden menus across

Peugeot 308 Secret Menu: Accessing the Hidden Engineering & Diagnostics System

Automotive forums are buzzing with rumors of hidden “engineer menus,” “test codes,” and “unlocked profiles.” Some of these are useful; others are just cool party tricks. In this comprehensive guide, we will unlock every known secret menu for the Peugeot 308, covering the infotainment system, the instrument cluster, and the climate control unit.

Newer models, especially those with the 10-inch or newer 9.7-inch capacitive touchscreens, use the or RCC infotainment systems. These systems are faster and offer more, though the "hidden" menu is often accessed differently.