Ford 1996 Windstar Manual page 136

OVERDRIVE OFF Lamp
This lamp indicates the operating range of the transaxle. This
lamp will illuminate when the Overdrive On/Off button is
depressed.
OVERDRIVE OFF lamp location
With the transaxle range selector in the Overdrive j range, the
OVERDRIVE OFF lamp will not be illuminated. The transaxle
will be allowed to upshift and downshift from 1st through 4th
gears. When the Overdrive on/off button is depressed, the
OVERDRIVE OFF lamp will illuminate. The transaxle will now
only upshift and downshift from 1st through 3rd gears. The
vehicle will always return to the overdrive operation mode
when the ignition is turned off and back on.
If the lamp does not come on when the Overdrive ON/OFF
button is depressed or if the lamp flashes when you are driving,
have your vehicle serviced at the first opportunity. If this
condition persists, damage could occur to the transaxle.
Horn
To sound the horn, press the center of the steering wheel. Check
the horn regularly to make sure it operates properly.
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