Guidance In Non-Digitized MAP Area
When driving outside of the digitized map area (e.g. company grounds, enclosed parking facilities, rural roads,...), however, still within the CD-ROM map boundaries, the navigation processor (A40/3n2) switches over to "Guidance in non-digitized map area". The message
"OFF ROAD"
appears on the COMAND operating, display and control module (A40/3).
If the vehicle is outside of the CD-ROM map boundaries (outside of country) the display also indicates the message:
"NO MAP"
In both cases only basic location finding (dead reckoning) with correction using the GPS data is accomplished (no map matching).
The limited guidance is accomplished only by indicating:
- The straight line distance to the destination and
- The direction to the destination (as arrow).
After re-entering the digitized map area, the system automatically continues with "Guidance in digitized map area". The possible streets in which the vehicle could be are determined with the aid of GPS location finding. This can result in temporary delays in the guidance function.
NOTE: When the message "NO MAP" appears, complete guidance can be continued after inserting a corresponding CD-ROM for the country in question.