Ford Windstar Owner's Manual page 29

Instrumentation
The washer fluid is only checked when the engine is started or
the windshield washers are in operation. The light will not
come on if the fluid level becomes low while you are driving
unless you turn on the windshield washers.
The low windshield washer indicator light
Speed Control Indicator
A SPEED CONTROL light is displayed in the optional electronic
instrument cluster when the speed control system is engaged.
The display will turn off when the brake pedal is pressed or if
speed control is shut off.
This display does not indicate any problems with the speed
control, but is simply a convenient way of knowing when it is
active.
The speed control light
Hazard Flasher Indicator Light
This light flashes when you turn on the hazard flashers. If your
ignition is ON, the turn signal indicator lights in the electronic
cluster will flash in time with the hazard flashers.
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