Patent ID: 7571042

Claim:
A navigation system for a vehicle, said navigation system comprising: a control in the vehicle operable to communicate with an external service provider via a wireless communication link between the vehicle and the external service provider; a global positioning system, said global positioning system determining a geographic position of the vehicle; said control receiving a user input from a driver of the vehicle and responsive thereto, said control establishing said wireless communication link between the vehicle and the external service provider, driving instruction information from the external service provider being downloaded to said control via said wireless communication link, said downloaded driving instruction information comprising a plurality of data for instructing the driver how to drive from an initial location to a destination location; said control downloading said driving instruction information from the external service provider during a first period of time and while the wireless communication link is established between said control and the external service provider, said control comprising memory for storing said driving instruction information for providing said driving instruction information to the driver of the vehicle after the communication link between said control and the external service provider is disconnected; and said control providing said driving instruction information to the driver of the vehicle in a step-by-step manner, with at least some of said driving instruction steps being provided to the driver of the vehicle after the communication link between said control and the external service provider is disconnected, said control providing said driving instruction information over a second period of time, said second period of time being greater than said first period of time.