Depending on your specific issue, you can perform a soft reset, a factory reset via settings, or an ERC unlock for security lockouts. 1. Simple Soft Reset (Reboot)
If you want to clear all user settings, paired devices, and personal data, use the internal menu system. Press the button (often a gear icon) on the unit. Navigate to Personal Info or System settings. Scroll down to find Info & Security or Reset Options .
After a battery change, the NDDN-W57 often enters a "locked" state and requests a security code. You can bypass this by generating an unlock code.
Press and hold the Power/Volume button for approximately 4 to 10 seconds . The screen will go blank, the Toyota logo will appear, and the system will reboot to the home screen.
As a fallback, you can disconnect the negative terminal of your car battery for a few minutes and then reconnect it to force a full power cycle. 2. Factory Reset via System Menu
