▷ The current transmission position cannot be displayed?
The vehicle is located in an unrecognized region, is in a poor reception area, or the system is currently determining the position.

Reception is usually best when you have an unobstructed view of the sky.

▷ The destination without street information is not used for route guidance?
When city has been input, no downtown can be determined. Input any street in the selected city and start destination guidance.

▷ The destination is not used for route guidance?
The destination data are not contained in the navigation data. Select a destination that is as close as possible to the original.

▷ Letters for destination input cannot be selected?
The stored data do not contain the data of the destination. Select a goal that is as close as possible to the original.

▷ Is the map displayed in shades of gray?
"Traffic conditions/gray map" active:

The Control Display changes to a black and white display. This enables a better view of the traffic bulletins.

▷ Spoken instructions are no longer output during route guidance in front of intersections?
The area has not yet been fully recorded, or you have left the recommended route and the system requires a few seconds to calculate a new route suggestion.