FORD 1998 Explorer - Manual (Page 110)

To return to (Overdrive) mode, press the transmission control switch.
The TCIL will no longer be illuminated.
Each time the vehicle is started, the transmission will automatically
return to normal overdrive mode.
Every time the vehicle is shut off and restarted, you must press the
transmission control switch to cancel overdrive operation if driving in
overdrive is not desired.
2 (Second)
Use 2 (Second) to start-up on
slippery roads or to provide
additional engine braking on
downgrades.
1 (First)
Use 1 (Low) to provide maximum
engine braking on steep
downgrades. Upshifts can be made
by shifting to 2 (Second) or to
(Overdrive). Selecting 1 (Low)
at higher speeds causes the
transmission to shift to a lower gear,
and will shift to 1 (Low) after vehicle decelerates to the proper speed.
Driving with a 5–speed automatic transmission (4.0L engines only)
Understanding gearshift positions
Hold the brake pedal down while you move the gearshift lever
from position to position. If you do not hold the brake pedal
down, your vehicle may move unexpectedly and injure someone.
Pull the gearshift lever towards you and downward to move the
automatic gearshift.
Driving
110