Lincoln 1997 Town Car Owner's Manual page 178

R (Reverse)
With the gearshift in the R (Reverse) position, the
vehicle will move backward. You should always
come to a complete stop before shifting into or out
of R (Reverse).
N (Neutral)
With the gearshift in the N (Neutral) position, the
vehicle can be started and is free to roll. Hold the
brake pedal down while in this position.
Driving
Your vehicle's gearshift is on the steering column.
The Transmission Control Switch (TCS) is located
on the end of the gearshift lever. The Transmission
Control Indicator Light (OVERDRIVE OFF) is
located on the instrument panel. You can put the
gearshift lever in any of the several positions.
The OVERDRIVE OFF light is off (not illuminated)
during normal vehicle operation. This allows the
transmission to upshift and downshift from 1st
through 4th gears. When the TCS is pressed, the
Transmission Control Indicator Light will illuminate
(OVERDRIVE OFF) on the instrument panel. When
this OVERDRIVE OFF is illuminated the
transmission will upshift and downshift from 1st
through 3rd gears.
If OVERDRIVE OFF light does not come "ON"
when TCS is depressed or if the light flashes when
you are driving, have your vehicle serviced at the
first opportunity. If this condition persists, damage
could occur to the transmission.
To return the transmission to normal operation (1st
through 4th gear) depress the TCS again. This
switch may be used to cancel overdrive any time
the vehicle is being driven. Each time your vehicle
is started, the overdrive system will automatically be
in the normal overdrive mode and the light will not
be illuminated.
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