To enable a user to easily use service information of a facility to be provided by a car navigation device even when the user is away from a vehicle.

This car navigation cooperation system is provided with a retrieving means for retrieving the information of a facility located at a designated place or in the neighborhood of a route before reaching the designated place according to a user operation, and configured to present the retrieval result of a retrieval means. This car navigation cooperation system is provided with a service information output part for extracting the service information as information to be provided to a user by the facility from among pieces of information retrieved by the retrieval means on the basis of prescribed conditions, and for outputting it to a prescribed portable terminal.