Ford Windstar Owner's Manual page 35

Instrumentation
Fuel Computer Buttons
The fuel computer functions are controlled by the three buttons
located to the right of the electronic cluster:
The fuel computer buttons
SELECT — The SELECT button lets you choose the function
displayed by the fuel computer. Each time you press the
SELECT button, the fuel computer points to the next choice on
the menu. After it reaches the last choice, it returns to the top
of the menu.
E/M — The E/M button lets you switch the fuel computer
functions and the speedometer and odometer displays between
English and metric units. The displays remain in the chosen
units until you switch them again, even after you turn off the
vehicle and restart it.
RESET — The RESET button lets you reset or initialize the fuel
computer function that is displayed. Only TRIP DISTANCE,
AVERAGE ECONOMY, and AVERAGE SPEED can be reset.
Any time one of the fuel computer buttons is pressed, a short
chime will sound.
The Fuel Computer Functions
The complete fuel computer menu is displayed for about five
seconds after the cluster self-test (when the ignition is turned to
ON) and after the SELECT button is pressed. After five seconds,
only the selected function is displayed.
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