15●Do not start driving until the opening screen and caution screen close.●The vehicle position indicator may disappear temporarily after the speed is increaseddepending on the vehicle model. This is a normal phenomenon indicating that the systemis calculating the distance correction.●In the following cases, drive the vehicle in an open area for approximately 30 minutes at a speedof over 12.5 mph (20 kmph), while receiving GPS signals. This should be done after re-setting thelearning results from position correction (accuracy level) in order to improve the GPS distancecorrection accuracy (with the GPS reception indicator illuminating on the map screen).Refer to "Automatic Distance Correction" for details for distance correction for the items below( page 32).1. When using the navigation system for the very first time after installing the system2. When the navigation system is transferred to another vehicle3. When the tyre pressure is changed, tyres are changed, tyres are shifted in rotation or a sparetyre is used4. When deleting the position correction learning results for some reason■Automatic distance correction check3 Information appearsTurn on the parking lights[Wiring Check Information]displayed●The accuracy level is reset to "0".4 CheckPut the gearshift lever in thereverse positionApply the parking brake●The [Parking brake] illuminates.●The [SIDE LIGHT] illuminates.●The [Reverse Light] illuminates.■To close these checks■To return to the map screenSpeed: vehicle speedACC Volt: car battery voltage (11 V to 16 V)Speed Pulse: speed pulse emitted by the vehicleAccuracy level: learning level of vehicle positioning accuracy[GPS Information] displayedDrive the vehicle for approx.30 minutes with the mapscreen opened at a speed ofmore than 12.5 mph(20 kmph).■To return to the map screen● Satellite number● Latitude and longitudeof the current position● Current date and time●The mobile navigation system uses GPS data for distance correction. Make sure thatGPS signals are being received (checking for GPS reception is described on this page).●Check GPS reception in an open area location.NotesThe [GPS] illuminates (Confirmation only)Before Use14The Mobile Navigation System usesinput from three or more satellites andcalculates the vehicle position based onthe principle of triangulation.