The navigation map DVD cannot be read or detected. The message "Please insert navigation DVD"
appears in the CID (Central Information Display). The navigation system is inoperative.
Faulty DVD drive; read error due to hardening of the anti-vibration gel on the read head
Ensure that the map DVD is not faulty by swapping it with a map DVD known to work.
If the map DVD is not the problem, replace the DVD drive as per repair instructions
Note: If the DVD drive is replaced, it is not necessary to replace the map DVD or program the vehicle.