System Limitations
124 Navigation System
Also, depending on your current view
of the sky and the position of the
satellites, the elevation may be shown
incorrectly.
You may also notice some delay of the
vehicle position icon at intersections;
this is normal.
GPS Reception Issues
The signals received from the GPS
satellites are extremely weak (less
than a millionth of the strength of
a local FM station) and require an
unobstructed view of sky. The signal
can easily be interrupted or interfered
with by the following:
• Aftermarket metallic window tint
above or to the sides of the GPS
antenna (located on the back of the
navigation display)
• Cell phones, PDAs, or other electronic devices docked in a cradle
or lying loose on the dashboard
• Remote starters or “hidden” vehicle tracking systems mounted near the
navigation unit • Other aftermarket audio electronic
devices mounted near the navigation
unit
• Trees, tall buildings, freeway overpasses, tunnels, or overhead
electrical power wires
Although the system will direct you
to your desired destination, it may not
always generate what you consider to
be the most direct route. Try changing
the method of routing. See Changing
the Routing Method on page 52 . You may
also have Unver ifi ed Area Routing set
to OFF. See Unverifi ed Area Routing on
page 10 2 .
Additionally, the mapping database
contains verifi ed and unverifi ed maps.
See Map Overview on page 6 . A
Disclaimer screen will warn you if
your route includes unverifi ed streets.
Unver ifi ed streets may be missing from
the map, in the wrong location, or have
an incorrect name or address range.
Exercise additional caution when
driving in these unverifi ed areas. The destination icon shows the
approximate location of the destination.
This occurs because a city block can
have as many as 100 possible addresses
(for example, the 1400 block is followed
by the 1500 block) Since most cities
use only a portion of the 100 possible
addresses (for example, in the 1400
block, the addresses may only go up to
1425 before the 1500 block starts), the
address 1425 will be shown a quarter of
the way down the block by the system
instead of at the end of the block where
the destination is actually located.
You may fi
nd that the system
occasionally reboots. This is indicated
by the display returning to the globe
screen. A reboot can be caused by a
number of things, such as extreme
temperatures or shock from bumpy
roads. It does not necessarily indicate
a problem that requires service. If this
happens frequently, please see your
dealer.
System Limitations
2010 TL
Coverage Areas
144 Navigation System
Operation in Alaska, Hawaii,
Canada, and Puerto Rico
Certain functions that rely on a satellite
signal will not work correctly. These
functions include but are not limited to
AcuraLink, and traffi c- and weather-
related services.
XM Radio
Navigation-equipped vehicles delivered
to Alaska, Hawaii, Canada, and
Puerto Rico are equipped with XM
hardware, but XM broadcasting is
not available; therefore sections of
the manual that mention XM audio,
traffi c displays, weather information,
and AcuraLink features do not apply.
Vehicles originally delivered to the U.S.
mainland and shipped to Hawaii also
have XM, but will not function because
the XM satellites (aimed toward the
U.S. mainland) are too far away to
obtain reception.
Alaska, Hawaii, Canada, and
Puerto Rico
This section describes the differences in
navigation system operation for vehicles
delivered in Alaska, Hawaii, Canada,
and Puerto Rico.
Map Coverage
All roads displayed on the map screens
are detailed coverage roads. Text related
to “unverifi ed” roads or areas are not
applicable. The following topics do not
apply:
• Unverifi ed road descriptions (see
page 7 , 102 )
• Cautions and pop-up windows related to unverifi ed roads (see page 71 )
• Setup entries that relate to turning on or off unverifi e d r o u t i n g ( s e e p a g e 10 3 )
Other Map Issues
• See the coverage section for a list of
islands with coverage (see page 129 ).
Address and POI Entry Screens
The following differences occur for
map, address, and POI selection:
• Entry of a destination address or POI on an island other than your current
island may result in a screen caution
message. This is normal because
there are no “ferry” routes between
islands available in the database.
Setup Screen Differences
The SET UP screen differences are
minor and are listed below. See the
Setup section (page 92 ) for additional
information.
2010 TL