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nüvi 3400 Series Owner’s Manual 35
Calling Home
Before you can call home using the Call Home
button, you must enter a phone number for your
home location.
Select Phone > Call Home.
Using the Apps
Using Help
Select Apps > Help to view information
about using the device.
Searching Help Topics
Select Apps > Help > .
About ecoRoute
The ecoRoute
™
feature calculates the fuel
economy and the fuel price of navigating to a
destination, and offers tools for improving fuel
efciency.
The data provided by the ecoRoute feature is an
estimate only. The data is not actually read from
the vehicle, unless you are using the ecoRoute
HD accessory. To receive more-accurate fuel
reports for your specic vehicle and driving
habits, calibrate the fuel economy (page 36).
In some areas, an ecoRoute HD accessory is
required to use ecoRoute features.
ecoRoute HD Accessory
When connected to the ecoRoute HD accessory,
your device can receive real-time vehicle
information, such as error messages, RPM, and
battery voltage. Your device includes data read
from the vehicle by the ecoRoute HD accessory
when calculating ecoRoute data.
Go to www.garmin.com/ecoroute for
compatibility and purchasing information.