See also:

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

Important safety notes
WARNING To help avoid personal injury during a collision or sudden maneuver, exercise care when storing objects in the vehicle. Put luggage or cargo in the trunk if possible. Do not pile l ...

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. ...