Page 288 of 400

Driving on hilly or sloping terrain
Although natural obstacles may make it necessary to travel diagonally up
or down a hill or steep incline, you should always try to drive straight up
or straight down.Avoid driving crosswise or turning on steep
slopes or hills. A danger lies in losing traction, slipping sideways and
possibly rolling over. Whenever driving on a hill, determine beforehand
the route you will use. Do not drive over the crest of a hill without
seeing what conditions are on the other side. Do not drive in reverse
over a hill without the aid of an observer.
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.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
288
Page 302 of 400

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
32 10A Restraints Control Module (RCM),
Passenger Airbag Deactivation
Indicator
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
40 20A 4x4 module, Satellite radio module
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/Start customer access feed
(PTO)
45 5A Front wiper logic, Blower motor
relay coil
46 7.5A E/C mirror
47 30A Circuit
BreakerPower windows, Moonroof, Power
Sliding Backlite
48 Relay Delayed accessory
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
302
Page 397 of 400

snow tires and chains ............235
spare tire .........................308–309
terminology .............................208
tire grades ...............................207
treadwear ........................207, 213
Towing .......................................242
recreational towing .................253
Trailer Brake
Controller-Integrated ..............246
trailer towing ..........................242
wrecker ....................................327
Traction control ........................262
Traction-lok rear axle ...............264
Trailer Brake
Controller-Integrated ................246
Transfer case
fluid checking .........................379
Transmission
automatic operation .........99, 265
brake-shift interlock (BSI) ....265
fluid, checking and adding
(automatic) .............................375
fluid, checking and adding
(manual) .................................378
fluid, refill capacities ..............383manual operation ....................269
Turn signal ..................................90
U
Upfitter controls .......................114
V
Vehicle Identification Number
(VIN) ..........................................388
Vehicle loading ..........................236
Ventilating your vehicle ...........258
W
Warning lights (see Lights) .......12
Washer fluid ..............................350
Water, Driving through .............290
Windows
power .......................................102
Windshield washer fluid and
wipers ..........................................98
checking and adding fluid .....350
replacing wiper blades ...........350
Wrecker towing .........................327
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
397