A vehicle navigation system that uses a portable information terminal. The navigation system displays route guidance information by receiving GPS satellite radio waves, and includes a navigation unit that generates route guidance information, a meter panel of a meter unit, which displays only part of the route guidance information, and a display panel of the navigation unit, which displays every selected item of the route guidance information. The meter panel of the meter unit is disposed within the visual field of the driver when in driving the vehicle. On the other hand, the display panel of the navigation unit is disposed outside of the visual field of the driver when driving the vehicle. The resulting configuration provides a vehicle navigation system that provides the driver with the minimum necessary information when driving, and provides additional detailed information when needed, combined in a system that affords excellent operability.