2007 Acura MDX window

Navigation System111
System Limitations
Although your navigation system is one
of the most highly sophisticated pieces
of equipment you will find in a modern
automobile, you may find during its use,
that it has certain limitations.
The system uses signals from the Global
Positioning System (GPS) to aid in
determining its current location. The
GPS is operated by the U.S.
Department of Defense. For security
reasons, there are certain inaccuracies
built into the GPS that the navigation
system must constantly compensate for.
This can cause occasional positioning
errors of up to several hundred feet.
For example, in urban areas where
streets are close together, this could
cause the system to show that you are
traveling on a street that parallels the
street you are actually on. The system
will, under most circumstances, correct
itself while you drive. 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:
 After-market metallic window tint
above or to the sides of the GPS
antenna (located under the dash)
 Cell phones, PDAs, or other electronic devices docked in a cradle
or laying loose on the dash
 Radar detectors mounted on the dash
 Remote starters, or “hidden” vehicle location systems mounted near the
navigation unit  Other after-market 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 rout e. Try changing the
method of routing. See Changing the
Routing Method on page 51. You may
also have Unverified Area Routing set
to “OFF.” See Unverified Area Routing
on page 92.
Additionally, the mapping database
contains verified and unverified maps.
See Map Overview on page 6.
A Disclaimer screen will warn you if
your route includes unverified streets.
Unverified streets may be missing from
the map, in the wrong location, or have
an incorrect name or address range.
Exercise addition al caution when
driving in these unverified areas.

136Navigation System
Troubleshooting
* If the error persists, or is shown for a wide area, see your dealer.
Screen Error MessageSolution
Navigation system is unabl e to acquire a proper GPS
signal. Make sure there is nothing on the dash
blocking the GPS antenna (after-market
metallic window tinting or after-market devices placed on the dash, like radar
detectors, cell phones, or loos e items). If the dashboard is clear of objects, move the
vehicle to an open space away from tall buildings, trees, etc.
Navigation unit door is ope n or No DVD disc is
inserted. Please check system. Make sure that the navigati
on DVD disc is inserted with the label side up and the
navigation unit door is fully snapped closed (see page 116).
No DVD disc. Please check syst em.Check that the navigation DVD disc is inserted with the label side up (page 116). If
the problem persists, see your dealer.
DVD disc reading error (unf ormatted). Please consult
your dealer. Check the DVD disc surface for deep scratches or other damage. Make sure you are
using a Navigation DVD (white colored la
bel). The system cannot read other
mapping databases or video DVDs. If the problem persists, see your dealer.
Display temp is too high. Sy stem will shut down until
display cools down. This message will appear briefly when the
display temperature is too high, and then
the display will turn off until the temper ature cools down. The system will turn
back on when the display cools down.
Outside temperature is low. System will take awhile to
start up. The temperature is below -22°F and the navigation ECU has difficulty reading the
DVD. The system will start up
when the temperature warms up.
Route has not been completed. Please try again from a
different location. This message will appear when you are routi
ng to or from a place (new area) that is
not in the database. Try planning a different route to or from a different location.*
No alternate route found. Original route will be
followed. No alternative route method was found. The
original route method will be used.*
Ensure that a road name is displayed at the bottom of the map.
This destination cannot be found in database. The destination was not found in the data base. Try another destination nearby, or
select the destination with the Interface Dial.*

138Navigation System
Glossary
Initialization - This refers to the period
needed to reacquire the GPS satellite
orbital information whenever the
navigation system power has been
disconnected. This can take 10 to 45
minutes with the ve hicle out in an
open area.
Instant Fuel - The current
instantaneous fuel economy value as
displayed by the Trip computer
screen.
LCD - Liquid Crystal Display. The
navigation screen.
Map Matching - The received GPS information allows the navigation
system to position the vehicle on the
map. Map matching has occurred if
the map screen is displaying the
current street name in the bottom-
shaded area.
Mic - Abbreviation for the microphone
used for receiving voice commands.
It is located near the map light in the
ceiling.
Multi-Information Display (MID) - Located in the gauge assembly. See
the Owner’s manual for additional
information. MW -
Maneuver Window. While on-
route to a destination, this window
displays information about the next
maneuver.
Navi - Abbreviation for the navigation
system.
North Pointer - The map symbol
showing the map orientation. See
page 61.
Off Route - This occurs when the user
leaves mapped roads. Off road
tracking dots (“breadcrumbs”) are
displayed if the option is enabled in
the Setup screen. The user can use
them to return to a mapped road. The
bottom of the navigation screen will
say “Not on a digitized road”
Outlying Areas - These are rural areas
that typically have only their main
roads mapped. All other roads are
shown in light brown for reference
only, since they have not been
verified.
PIN - Personal Identification Number.
A random 4-digit number created by
the customer to protect personal
information. POI -
Point Of Interest. These are the
businesses, schools etc. found under
the Places option on the Enter
destination by screen. See page 51.
Polygon - Colored areas on the map
screen denoting parks, schools etc.
See Map Screen “features” for a list
of the assigned colors. See page 51.
Reminder - Automatic “pop-up”
Calendar message. See Calendar on
page 78.
Remote Keyless Entry - Allows you to
lock/unlock the doors, unlock the
tailgate, and link/ unlink Driver 1/
Driver 2 settings.
RES - Rear Entertainment System.
(Factory installed)
Security Code - Code needed to
activate the navigation system or
audio system. See Entering the
Security Code on page 109.