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Shifting from 2WD to 4x4 HIGH
Rotate the 4x4 control to the 4x4
HIGH position at speeds up to
55 mph (88 km/h).
• The electronic shift 4x4
system is designed to engage
4x4 HIGH when the vehicle is
moving. If shifted to 4x4
HIGH while at complete stop,
4x4 may not engage and the
4x4 indicator may flash
continuously until the vehicle
is allowed to move at a speed above 1 mph (1.6 km/h).
• Do not shift into 4x4 HIGH with the rear wheels slipping.
Shifting from 4x4 HIGH to 2WD
Rotate the 4x4 control to 2WD at
any forward speed. Disengagement
of the transfer case and front hubs
may be delayed due to torque bind
which is caused by driving on dry
hard surfaces or performing tight
turns while using the 4x4 system.
• You do not need to operate the vehicle in R (Reverse) to disengage
your front hubs, but it will eliminate any torque bind and allow the
system to immediately disengage.
Shifting from 4x4 HIGH to 4x4 LOW
• If the range shift requirements are not met, the 4x4 Low
indicator will flash continuously.
1. Bring the vehicle to a complete stop.
2. Place the gearshift in N (Neutral). If the vehicle is equipped with a
manual transmission, also depress the clutch pedal.
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Driving
301