Secret Menu 2021 — Peugeot 308

If your navigation system is lagging or failing to find your position, the secret menu reveals how many GPS satellites your car is actively communicating with. If the satellite count is zero while parked outside, your roof antenna or its wiring is likely faulty. Hardware Modules and Cheat Codes

The secret menu offers several advantages, including: peugeot 308 secret menu

The Peugeot 308 features hidden menus that vary depending on your infotainment system (SMEG, NAC, or RCC) and the vehicle generation. These "secret" menus are primarily used for system diagnostics, checking software versions, and performing resets. 1. Service/Diagnostic Menu (SMEG & NAC Systems) If your navigation system is lagging or failing

Access methods, functionality, and risks of the dealer diagnostic/hidden menu on Peugeot 308 vehicles (Focus on T9 Generation 2013–Present). These "secret" menus are primarily used for system

Ensure the car is turned on or in the ignition position (engine running is best).

Press and hold the button (the physical button on the side of the screen) for about 5–10 seconds until the service screen appears.

Keep holding until it shows and the spanner disappears. MK3 Generation (2021–Present):