FORD 2010 F-550 v.2 - Manual (Page 291)

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.
3. Move the 4x4 control to the 4x4
LOW position.
4. Hold the shift conditions until the
4x4 LOW indicator light illuminates.
5. If the 4x4 LOW indicator light
flashes continuously for more than
10 seconds, allow the vehicle to
move at a speed below 5 mph
(8 km/h), then repeat steps 2
through 5 while the vehicle is rolling
before reporting any shift concerns to your authorized dealer.
Shifting from 4x4 LOW to 4x4 HIGH or 2WD
If the range shift requirements are not met, the 4x4 Low or 4x4
High indicator will flash continuously, depending on which mode
the shift began.
1. Bring the vehicle to a complete stop.
2. Place the gearshift in N (Neutral).
Driving
291
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)