Ford 2006 Expedition Owner's Manual page 251

Driving
To return to D (Drive) with Overdrive mode, press the transmission
control switch (TCS). 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 D (Drive). 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.
Forced Downshifts
To gain acceleration in D (Drive) with Overdrive or D (Drive) without
Overdrive (O/D OFF) when passing another vehicle, push the accelerator
to the floor. The transmission will downshift to the appropriate gear:
third, second or first gear.
If your vehicle gets stuck in mud or snow
If your vehicle gets stuck in mud or snow, it may be rocked out by
shifting between forward and reverse gears, stopping between shifts in a
steady pattern. Press lightly on the accelerator in each gear.
Do not rock the vehicle if the engine is not at normal operating
temperature or damage to the transmission may occur.
Do not rock the vehicle for more than a minute or damage to the
transmission and tires may occur, or the engine may overheat.
If your vehicle is equipped with AdvanceTrac with RSC, it may be
beneficial to turn the system off so the wheels are allowed to spin.
251
2006 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)