FORD 1999 Windstar - Manual (Page 158)

If the O/D OFF indicator light is flashing on and off repeatedly when the
vehicle is started or does not come on when the O/D OFF control is
pressed, it means that there is a transaxle electronic system malfunction.
You should contact your dealer as soon as possible or damage to the
transaxle could occur.
When to use D (Drive) or press the O/D OFF switch
You will notice that there is only one
drive position on your gearshift
indicator (instead of Drive and
Overdrive). However, you will find a
control labeled O/D located on the
gearshift lever. Push in the switch and the O/D OFF light in the
instrument cluster will illuminate. With the O/D OFF light illuminated,
the transaxle will operate in first, second and third gears and will not
shift into fourth gear. Operating in D (O/D OFF) provides more engine
braking than
Overdrive for descending hills or city driving.
To return the transaxle to the normal Overdrive operation, press the O/D
OFF control again. Use this control to select between Overdrive or D
(O/D OFF) whenever you drive your vehicle.
If the O/D OFF indicator light is flashing on and off repeatedly when the
vehicle is started or does not come on when the O/D OFF control is
pressed, it means that there is a transaxle electronic system malfunction.
You should contact your dealer as soon as possible or damage to the
transaxle could occur.
2 (Second)
Use 2 (Second) to accelerate from a
stop on slippery roads, or to give
you more engine braking to slow
your vehicle on downgrades.
1 (First)
Use 1 (First) when added engine
braking is desired while descending
steep hills.
The automatic transaxle will shift to
the proper gear to ascend any grade without any need to shift to 1
(First).
O/D
ON/OFF
Driving
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