The Navigation Map Update Activation Key Does Not Work (Navigation System)

Diagnostic Procedure

1. The activation key is partly based on the audio-navigation unit serial number. If the serial number displayed in System Device Information screen does not match the serial number found on the upper side of the audio-navigation unit, the annual navigation map update activation key may not work when updating the navigation map. In order for a navigation map update activation key to work, both these serial numbers must match. If they do not, replace the audio-navigation unit , then contact the navigation map update fulfillment desk with the new units serial number in order to get a new activation key