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can be found in theMaintenance and Specificationschapter. You
should become thoroughly familiar with this information before you
operate your vehicle.
Normal characteristics
On some 4WD models, the initial shift from two-wheel drive to 4x4 while
the vehicle is moving can cause some momentary clunk and ratcheting
sounds. This is the front drivetrain coming up to speed and the
automatic locking hubs engaging and is not cause for concern.
Sand
When driving over sand, try to keep all four wheels on the most solid
area of the trail. Avoid reducing the tire pressures but shift to a lower
gear and drive steadily through the terrain. Apply the accelerator slowly
and avoid spinning the wheels.
Avoid excessive speed because vehicle momentum can work against you
and cause the vehicle to become stuck to the point that assistance may
be required from another vehicle. Remember, you may be able to back
out the way you came if you proceed with caution.
Note:If air is released from your tires, the Tire Pressure Monitoring
System (TPMS) indicator light may illuminate (if equipped).
Mud and water
If you must drive through high
water, drive slowly. Traction or
brake capability may be limited.
When driving through water,
determine the depth; avoid water
higher than the bottom of the hubs
(if possible) and proceed slowly. If
the ignition system gets wet, the
vehicle may stall.
Once through water, always try the brakes. Wet brakes do not stop the
vehicle as effectively as dry brakes. Drying can be improved by moving
your vehicle slowly while applying light pressure on the brake pedal.
Be cautious of sudden changes in vehicle speed or direction when you
are driving in mud. Even 4WD vehicles can lose traction in slick mud. As
when you are driving over sand, apply the accelerator slowly and avoid
spinning your wheels. If the vehicle does slide, steer in the direction of
the slide until you regain control of the vehicle.
If the transmission, transfer case or front axle are submerged in water,
their fluids should be checked and changed, if necessary.
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USA(fus)
Driving
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When climbing a steep slope or hill,
start in a lower gear rather than
downshifting to a lower gear from a
higher gear once the ascent has
started. This reduces strain on the
engine and the possibility of stalling.
If you do stall out, do not try to
turn around because you might roll
over. It is better to back down to a
safe location.
Apply just enough power to the
wheels to climb the hill. Too much
power will cause the tires to slip,
spin or lose traction, resulting in
loss of vehicle control.
Descend a hill in the same gear you
would use to climb up the hill to
avoid excessive brake application
and brake overheating. Do not
descend in neutral; instead,
manually shift to a lower gear. Your
vehicle has anti-lock brakes, apply
the brakes steadily. Do not “pump”
the brakes.
Driving on snow and ice
4WD vehicles have advantages over 2WD vehicles in snow and ice but
can skid like any other vehicle.
Should you start to slide while driving on snowy or icy roads, turn the
steering wheel in the direction of the slide until you regain control.
Avoid sudden applications of power and quick changes of direction on
snow and ice. Apply the accelerator slowly and steadily when starting
from a full stop.
Avoid sudden braking as well. Although a 4WD vehicle may accelerate
better than a two-wheel drive vehicle in snow and ice, it won’t stop any
faster, because as in other vehicles, braking occurs at all four wheels. Do
not become overconfident as to road conditions.
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Owners Guide, 3rd Printing
USA(fus)
Driving
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
33 10A Trailer tow brake controller, Trailer tow
battery charge relay coil
34 5A Not used (spare)
35 10A Reverse Sensing System (RSS), 4x4
module, 4x4 solenoid, Traction control
switch, Tow/Haul switch (Diesel engine)
36 5A Passive Anti-Theft System (PATS)
transceiver, Cluster control
37 10A Dual automatic or Manual climate
control, PTC control
38 20A Subwoofer
39 20A Radio, Navigation radio and amplifier
40 20A 4x4 module, Satellite radio module,
SYNC
41 15A Radio, Electrochromatic rear view mirror,
Lock switch illumination
42 10A Heated seat relay coil, Upfitter switch
relay coils, Heated mirror relay coil
43 10A Fuel tank selector switch, 4x4 module
44 10A Run customer access feed (PTO)
45 5A Front wiper logic, Blower motor relay
coil
46 7.5A Not used (spare)
47 30A Circuit
BreakerPower windows, Moon roof, Power
Sliding Backlite
48 Relay Delayed accessory
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
WARNING:Always disconnect the battery before servicing high
current fuses.
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Owners Guide, 3rd Printing
USA(fus)
Roadside Emergencies
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Steering wheel
controls ....................................118
tilting .......................................104
SYNC..........................................79
T
Tailgate ......................................150
Temperature control
(see Climate control) .................80
Tilt steering wheel ....................104
Tire Pressure Monitoring
System (TPMS)
Tires, Wheels and Loading ....245
Tires ...................................227–229
alignment ................................237
care ..........................................233
changing ..........................330, 332
checking the pressure ............232
inflating ...................................230
label .........................................244
replacing ..................................235
rotating ....................................238
safety practices .......................236
sidewall information ...............240
snow tires and chains ............255
spare tire .........................327, 329
terminology .............................229
tire grades ...............................228
treadwear ........................228, 234
Towing .......................................262
recreational towing .................274
Trailer Brake
Controller-Integrated ..............267
trailer towing ..........................262
wrecker ....................................348
Traction control ........................282
Trailer Brake
Controller-Integrated ................267Transfer case
fluid checking .........................401
Transmission
automatic operation .......104, 285
brake-shift interlock (BSI) ....285
fluid, checking and adding
(automatic) .............................397
fluid, checking and adding
(manual) .................................400
fluid, refill capacities ..............405
manual operation ....................289
Turn signal ..................................94
U
Upfitter controls .......................121
USB port ......................................44
V
Vehicle Identification Number
(VIN) ..........................................410
Vehicle loading ..........................256
Ventilating your vehicle ...........278
W
Warning lights (see Lights) .......14
Washer fluid ..............................371
Water, Driving through .............311
Windows
power .......................................108
Windshield washer fluid and
wipers ........................................103
checking and adding fluid .....371
replacing wiper blades ...........372
Wrecker towing .........................348
2009 F-250/350/450/550(f23)
Owners Guide, 3rd Printing
USA(fus)
Index
419