Introduction
Navigation System5
The navigation system applies location,
direction, and speed information to
the maps and calculates a route to the
destination you enter. As you drive to
that destination, the system provides
map and voice guidance.
The navigation system is easy to
use. The locations of many places of
business and entertainment are already
entered in the system. You can select
any of them as a destination by using
the Interface Dial or voice control.
There are several ways to enter a
destination, such as by point of interest
(POI), by address, by phone number,
and by selecting it from the map. The
last 50 destinations are saved for reuse
at a later date. The system also allows
you to store a home address to simplify
returning home from your destination. Accessories Precautions
If you have front or side window tinting
installed, be aware that if the tint has
metallic properties, it can seriously
degrade or prevent GPS reception. This
is because the GPS antenna is located
behind the navigation display in the
center of the dashboard.
If you plan to install electronic
components such as radar detectors,
vehicle tracking devices, remote
starters, additional amplifi ers, or other
audio components, ensure that they are
not located near the navigation display
in the center of the dashboard, or near
the GPS antenna behind the navigation
display. Signal noise emanating from
these devices can cause intermittent
disruption of the navigation system.
Important Safety Information
The navigation system can distract your
attention from the road if you focus
on the screen or operate the system’s
controls while driving.
Enter as much information as possible
into the system before you begin
driving, or when the vehicle is stopped.
Then, as you drive, listen to the audio
instructions and use voice commands
when possible.
2010 TL
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
