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nüvi 1690 Owner’s Manual 37
Using the Tools
The data provided by the ecoRoute
features are estimates only. The
data is not actually read from your
vehicle. To receive more-accurate
fuel reports for your specic vehicle
and driving habits, calibrate the fuel
economy.
The rst time you access the
ecoRoute features you will be asked
to enter fuel and mileage information
about your vehicle.
Viewing the Fuel Report
If you have entered your vehicle
prole and the current fuel price,
your nüvi calculates the average
fuel economy for your vehicle, your
carbon footprint, and the cost of the
fuel consumed.
The fuel consumption data is
based on estimates for speed and
acceleration for an average vehicle.
Touch Tools > ecoRoute > Fuel
Report.
TIP: To ensure that fuel data is
always recorded, keep your nüvi
turned on while driving.
Calibrating the Fuel Economy
Calibrate the fuel economy to receive
more-accurate fuel reports for your
specic vehicle and driving habits.
Calibrate when you ll up your fuel
tank.
1. Calculate your miles per gallon or
liters per 100 kilometers.
2. Touch
Tools > ecoRoute > Fuel
Report > Calibrate.
3. Touch
and to enter the
result from step 1.
4. Touch
OK.