See also:

Restoring the factory settings
•► Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Note
You can adjust almost all system settings individually for each screen without affecting the other screen. You make these settings using the remote control. ...

Driving on flooded roads
Do not drive through flooded areas. Check the depth of any water before driving through it. Drive slowly through standing water. Otherwise, water may enter the vehicle interior or the engine c ...