35NavigationNavigationIntroduction and operation of the navigation
system
Introduction
General information
The current position of the vehicle is determined through the GPS satellitesystem (Global Positioning System). Sensors in the vehicle measure distan-ces that have been driven. With the detailed material stored in the map, andaccording to the traffic news stored, all the values obtained are compared.Similarly, the traffic reports are taken into account to calculate the route (dy-namic navigation ⇒ page 42). With all the data available, the navigationsystem calculates the optimum route to the destination.
The destination is defined by entering an address or a point of interest, e.g.a petrol station or hotel.
Spoken instructions and visual guidance on the navigation unit and thecombi-instrument direct you to your destination.
Depending on the country, some infotainment system functions can no lon-ger be selected when the vehicle is travelling above a certain speed. This isnot an operational error; it is to comply with the legal requirements.
Limitations during navigation
Possible errors during navigation
When the navigation system cannot receive data from the GPS satellites(dense tree foliage, underground parking areas), it is possible to proceedwith navigation using the system of vehicle sensors.
For the navigator to work properly navigation should begin when the signalis received from the satellite.
In areas that are not or only partially digitised on the data medium (e.g. in-sufficient definition of one-way streets and road categories), the navigationsystem will still attempt to provide route guidance.
If navigation data are unavailable or incomplete, the navigation system maybe unable to determine the exact vehicle position. As a result, the naviga-tion may not be as exact as usual.
Area of navigation and validity of the navigation data
Roads and streets are subject to constant change (e.g. new roads, changesto street names and house numbers). After some time, navigation data willno longer be up to date. This may lead to inaccurate or incorrect route guid-ance.
Current navigation data media and versions for other countries are availablefrom SEAT dealerships.
Note
The user must pay attention to the road signs, which take precedence overthose shown on the screen.
Use navigation data from a memory card.
Memory cards containing updated navigation data can be obtained fromSEAT dealerships.
