Ford 2006 Expedition Owner's Manual page 256

Driving
Shifting from 2H to A4WD or 4H
Move the control to the A4WD or
4H position at any forward speed up
to 55 mph (88 km/h). The "4X4"
light in the instrument cluster will
illuminate if 4H is selected.
Shifting from A4WD to 4H
Move the control from A4WD to 4H
at a stop or while driving at any
speed.
Shifting from 2H, A4WD or 4H to 4L
1. Bring the vehicle to a stop and
keep the brake pedal depressed.
2. Place the gearshift in N (Neutral).
3. Move the control to the 4L
position.
If any of the above shift conditions are not met, the message center will
display the appropriate information.
Note: Some noise may be heard as the system shifts or engages.
256
2006 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)