Checking your highway fuel economy using the electronic
message center display
The following procedure will allow you to accurately monitor your actual
highway fuel economy. Since this procedure requires the vehicle speed
control system to be set to highway speeds, it must be run only on suitable
roadways where long distance speed control can be safely maintained.
You may notice gradual improvement in fuel economy over the course of
your vehicle’s break-in period (approximately 1 600 kilometers
[1 000 miles]).
1. Set the speed control. Refer to
Speed control
in the
Controls and
features
chapter.
2. Select FUEL ECON AVERAGE.
3. Press the RESET control to clear
the system memory.
•
Actual highway fuel economy is
now displayed.
This current
average measure will change as
the speed control system changes the engine speed to maintain a
constant vehicle speed. This is most noticeable in hilly environments.
4. Drive the vehicle at least 8 km (5 miles) with the speed control
system engaged to display a stabilized average.
5. Record the highway fuel economy for future reference.
It is important to press the RESET control after setting the speed
control to get accurate highway fuel economy readings.
FUEL REMAIN
This function shows the approximate
amount of fuel in the fuel tank in
whole numbers (liters or gallons). If
your tank is full or nearly full, the
display will be “F”. If your tank is
empty or nearly empty, the display
will be “E”.
FUEL ECON AVG
FUEL REMAIN
DIST TO EMPTY
AVG SPEED
TRIP A B
E/M
SELECT
RESET
FUEL ECON AVG
FUEL REMAIN
DIST TO EMPTY
AVG SPEED
TRIP A B
E/M
Instrumentation
18
Summary of Contents for 1999 Town Car
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