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Reference Information
System Limitations
GPS
The signals received from GPS satellites are
extremely weak (less than a millionth of the
strength of a local FM station) and require
an unobstructed view of the sky. The GPS
antenna is located in the fin antenna. The
signal reception can easily be interrupted or
interfered with by the following:
• Audio electronic devices mounted near the navigation unit
• Trees, tall buildings, highway overpasses,
tunnels, or overhead electrical power
wires
GPS is operated by the U.S. Department of
Defense. For security reasons, there are
certain inaccuracies built into GPS for which
the navigation system must constantly
compensate. This can cause occasional
positioning errors of up to several hundred
feet (meters).
Address Calculation
The destination icon shows only the
approximate location of a destination
address. This occurs if the number of
possible addresses is different from the
number of actual addr esses on a block. For
example, the address 1425 on a 1400 block
with 100 possible addresses (because it is
followed by the 1500 block) will be shown a
quarter of the way down the block by the
system. If there are only 25 actual addresses
on the block, the actual location of address
1425 would be at the end of the block.
Database
The digitized map database reflects
conditions as they existed at various points
in time before production. Accordingly,
your database may contain inaccurate or
incomplete data or information due to the
passage of time, road construction,
changing conditions, or other causes.
For example, some places/landmarks may
be missing when you search the database
because the name was misspelled, the place
was improperly categorized, or a place/
landmark is not yet in the database. This is
also true for police stat ions, hospitals, and
other public institutions. Do not rely on the
navigation system if you need law
enforcement or hospital services. Always
check with local information sources.
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Voice Commands
List of Categories
RestaurantsEveryday LifeRecreation
Barbecue Fish and Seafood Auto Serv icesLaundry Services Amusement Parks
Skiing and Winter Sports
Coffee and Tea Grills Car WashesLibraries Bowling Center Sport Centers
Delis Pizza
Colleges and UniversitiesPlaces of Worship Camps and Retreats Stadiums and Tracks
Donuts and Baked GoodsSteakhousesCommunity Services Post Offices Golfing
Fast Food Wine, Beer, and Liquor Convenience Store Schools Medical Care
Shopping Fitness and Gyms Veterinary Clinics Doctor Offices Pharmacies
Books, Music, and MoviesHome and Garden Art & EntertainmentHospitals
Clothing and AccessoriesHousewaresBars and PubsMuseums and Galleries Transit
Computers and ElectronicsOffice Supply and ShippingCasinosNightclubs Airports Train Stations
Convenience Stores Pharmacies Movie Theatres Performing Arts Bus Stations Transit Service
Department Stor es Shopping Centers AttractionsCar RentalTravel Agents
Florists and Gifts Sporting Goods Major Attractions Offbeat Places Ferry Terminals Truck Stops
Grocery Stores Wine, Beer, and Liquor Amusement Pa rks Parks and GardensGas Stations
Lodging Event CentersTourist Information Banks & ATMs
Bed and Breakfast or InnHotel or Motel Historical Landmarks Wineries and Breweries Parking
Campground or RV ParkMuseums and Galleries Zoos and AquariumsRest Areas
