System Description - Honda 2007 Acura RL User Manual

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL
Navigation does not
call using the HFL

SYSTEM DESCRIPTION

OVERVIEW
The navigation system is a highly-sophisticated, hybrid locating system that uses satellites and a map
database to show where the vehicle is to help guide you to a desired destination.
The navigation system receives signals from the global positioning system (GPS), a network of 24 satellites
in orbit around the earth. By receiving signals from several of these satellites, the navigation system can
determine the latitude, longitude, and elevation of the vehicle. In addition, signals from the system's yaw
rate sensor and the PCM (vehicle speed pulse) enable the system to keep track of the vehicle's direction and
speed of travel.
This hybrid system has advantages over a system that is either entirely self-contained or one that relies
totally on the GPS. For example, the self-contained portion of the system can keep track of vehicle position
even when satellite signals cannot be received. When the navigation system is on, the GPS can keep track of
the vehicle position even when the vehicle is transported by ferry.
The navigation system applies all location, direction, and speed information to maps and calculates a route
to the destination entered. As you drive to that destination, the system provides both visual and audio
guidance.
This navigation system also has voice recognition that allows voice control of most of the navigation
functions. The Navigation TALK and BACK buttons on the steering wheel activate the voice control. The
voice control also allows control of the audio and climate functions.
The illumination signal (headlights ON) is used by the navigation unit to automatically switch the display
between "Night" and "Day" brightness modes when display is set to Auto. When the instrument panel is set
to night and the brightness control is set to full brightness (hold both "+" and "-" key at the same time), the
navigation system stays in the day mode, even with the headlights on.
The GA-NET II bus passes information back and forth between the display panel control unit, the
navigation unit and the audio system, The information passed on this bus are audio and climate control
settings directed by the navigation unit.
The "Comm. Bus" connects the HFL, XM (AcuraLink), and navigation units. This bus supports these
functions:
The navigation control unit receives traffic and message information from the AcuraLink Control unit.

The navigation control unit sends a POI phone number ("Calculate route to" screen) to the HFL for

dialing.
If vehicle problems are detected, and the client's cellular contract includes data service, then the HFL

can send vehicle data to the HFL unit for transmitting back to the AcuraLink servers.
The AcuraLink server can pass additional problem details back through the HFL, to the AcuraLink

Control unit, and finally to the navigation unit for display.
2007 Acura RL
NAVIGATION DOES NOT CALL
USING THE HFL )
The wrong colored DVD or
version is installed