FORD 2005 F-550 v.3 - Manual (Page 202)

4. Move the 4WD control to the 4x4
HIGH (4WD High) or 2WD (2WD
High) position.
5. Hold the shift conditions until the
LOW RANGE indicator light shuts
off.
6. If the LOW RANGE indicator light
does not shut off within 15
seconds, drive the vehicle above 5
mph (8 km/h), then repeat steps 1
through 5 before reporting any shift concerns to your dealer.
Driving off-road with truck and utility vehicles
4WD vehicles are specially equipped for driving on sand, snow, mud and
rough terrain and have operating characteristics that are somewhat
different from conventional vehicles, both on and off the road.
How your vehicle differs from other vehicles
Truck and utility vehicles can differ from some other vehicles. Your
vehicle may be higher to allow it to travel over rough terrain without
getting hung up or damaging underbody components.
The differences that make your vehicle so versatile also make it handle
differently than an ordinary passenger car.
Maintain steering wheel control at all times, especially in rough terrain.
Since sudden changes in terrain can result in abrupt steering wheel
motion, make sure you grip the steering wheel from the outside. Do not
grip the spokes.
Drive cautiously to avoid vehicle damage from concealed objects such as
rocks and stumps.
You should either know the terrain or examine maps of the area before
driving. Map out your route before driving in the area. To maintain
steering and braking control of your vehicle, you must have all four
wheels on the ground and they must be rolling, not sliding or spinning.
Basic operating principles
• Do not use 4WD on dry, hard surfaced roads. Doing so will produce
excessive noise, increase tire wear and may damage drive components.
4WD modes are only intended for consistently slippery or loose
surfaces.
• Drive slower in strong crosswinds which can affect the normal steering
characteristics of your vehicle.
2005 F250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA_English (fus)
Driving
202