2015 FORD F450 brakes

Rear Axle
Limited Slip Differential.............................162
Electronic Locking Differential................162
Brakes
General Information....................................164
Hints on Driving With Anti-Lock Brakes...........................................................164
Parking Brake.................................................165
Hill Start Assist..............................................165
Traction Control
Principle of Operation.................................167
Using Traction Control................................167
Stability Control
Principle of Operation................................169
Using Stability Control
...............................169
Terrain Response
Principle of Operation
.................................172
Using Hill Descent Control.........................172
Parking Aids
Parking Aid
......................................................174
Rear View Camera
........................................175
Cruise Control
Principle of Operation.................................178
Using Cruise Control
....................................178
Driving Aids
Steering............................................................179
Load Carrying
Load Limit
.......................................................180
Tailgate.............................................................187 Towing
Towing a Trailer..............................................191
Trailer Sway Control....................................192
Recommended Towing Weights............192
Essential Towing Checks...........................195
Towing Points
...............................................203
Transporting the Vehicle
..........................204
Towing the Vehicle on Four Wheels
......205
Driving Hints
Breaking-In
.....................................................207
Economical Driving
.....................................207
Driving Through Water..............................208
Floor Mats
......................................................208
Snowplowing................................................209
Roadside Emergencies
Roadside Assistance
...................................212
Hazard Warning Flashers
...........................213
Fuel Shutoff
....................................................213
Jump Starting the Vehicle.........................214
Post-Crash Alert System...........................216
Customer Assistance
Getting the Services You Need................217
In California (U.S. Only)
.............................218
The Better Business Bureau (BBB) Auto Line Program (U.S. Only)......................219
Utilizing the Mediation/Arbitration Program (Canada Only)........................219
Getting Assistance Outside the U.S. and Canada........................................................220
Ordering Additional Owner's Literature......................................................221
Reporting Safety Defects (U.S. Only)..............................................................221
Reporting Safety Defects (Canada Only).............................................................222
Fuses
Fuse Specification Chart...........................223
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Super Duty (), enUSA Table of Contents

All safety restraints in the vehicle are
combination lap and shoulder belts. The
driver safety belt has the first type of
locking mode. The front outboard
passenger and rear outboard seat safety
belts have both types of locking modes
described as follows:
Vehicle Sensitive Mode
This is the normal retractor mode, which
allows free shoulder belt length
adjustment to your movements and
locking in response to vehicle movement.
For example, if the driver brakes suddenly
or turns a corner sharply, or the vehicle
receives an impact of about 5 mph
(8 km/h) or more, the combination safety
belts will lock to help reduce forward
movement of the driver and passengers.
In addition, the retractor is designed to lock
if the webbing is pulled out too quickly. If
this occurs, let the belt retract slightly and
pull webbing out again in a slow and
controlled manner.
Automatic Locking Mode
In this mode, the shoulder belt is
automatically pre-locked. The belt will still
retract to remove any slack in the shoulder
belt. The automatic locking mode is not
available on the driver safety belt.
When to Use the Automatic Locking
Mode
Use this mode any time a child safety seat,
except a booster, is installed in passenger
front or rear seating positions. You should
properly restrain children 12 years old and
under in a rear seating position whenever
possible. See
Child Safety (page 15). How to Use the Automatic Locking
Mode
1. Buckle the combination lap and
shoulder belt.
2. Grasp the shoulder portion and pull downward until the entire belt is pulled
out.
3. Allow the belt to retract. As the belt retracts, you will hear a clicking sound.
This indicates the safety belt is now in
the automatic locking mode.
How to Disengage the Automatic
Locking Mode
Unbuckle the combination lap and
shoulder belt and allow it to retract
completely to disengage the automatic
locking mode and activate the vehicle
sensitive (emergency) locking mode.
Safety Belt Extension Assembly WARNING
Do not use extensions to change the
fit of the shoulder belt across the
torso.
If the safety belt is too short when fully
extended, you can obtain a safety belt
extension assembly from an authorized
dealer.
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Super Duty (), enUSA Safety BeltsE142591

Trailer
Action
Message
The current gain setting for the trailer brake.
TRAILER BRAKE GAIN: XX.X
[OUTPUT]
The current gain setting for the trailer brake when atrailer is not connected.
TRAILER BRAKE GAIN: XX.X NO
TRAILER
Accompanied by a single chime, in response to faults
sensed by the TBC. See Trailer Sway Control (page 192).
TRAILER BRAKE MODULE
FAULT
A correct trailer connection (a trailer with electric trailerbrakes) is sensed during a given ignition cycle.
TRAILER CONNECTED
A trailer connection becomes disconnected, either
intentionally or unintentionally, and has been sensed during a given ignition cycle. Disregard this status if
your vehicle is not equipped with a factory installed
trailer brake controller. This message may appear when an aftermarket TBC is used even when the trailer is connected.
TRAILER DISCONNECTED
Your trailer sway control has detected trailer sway soyou need to reduce your speed.
TRAILER SWAY REDUCE
SPEED
Faults with your vehicle wiring and trailer wiring orbrake system. See
Towing a Trailer (page 191).
WIRING FAULT ON TRAILER
4WD Action
Message
A fault is present in your 4X4 system. See
Using
Four-Wheel Drive (page 153).
CHECK 4X4
Your 4X4 system is making a shift.
4X4 SHIFT IN PROGRESS
You need to apply the brake in order to shift into4X4 LOW.
FOR 4X4 LOW APPLY BRAKE
When your vehicle is at a stop and you need to shiftinto Neutral before you select 4X4 LOW.
FOR 4X4 LOW SHIFT TO N
When your vehicle is moving and you need toreduce your speed to select 4X4 LOW.
FOR 4X4 LOW SLOW TO 3 MPH
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Action
Message
You select 2WD and need to apply the brakes inorder to exit 4X4 LOW.
TO EXIT 4X4 LOW APPLY BRAKE
You select 2WD while your vehicle is at a stop in4X4 LOW and you need to shift into Neutral.
TO EXIT 4X4 LOW SHIFT TO N
You select 2WD while your vehicle is operating in4X4 LOW and you need to reduce your speed.
TO EXIT 4X4 LOW SLOW TO 3
MPH
May display when shifting to or from 4X4 LOW.
SHIFT DELAYED PULL FORWARD
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Super Duty (), enUSA Information Displays

STARTING A GASOLINE
ENGINE
When you start the engine, the idle speed
increases, this helps to warm up the
engine. If the engine idle speed does not
slow down automatically, have your
vehicle checked by an authorized dealer.
Before starting the engine check the
following:
•
Make sure all occupants have fastened
their safety belts.
• Make sure the headlamps and
electrical accessories are off.
• Make sure the parking brake is on.
• Move the transmission selector lever
to position P.
• Turn the ignition key to the on position.
Note: Do not touch the accelerator pedal.
1. Fully press the brake pedal.
2. Turn the key to the start position to start the engine. Release the key when
the engine starts.
Note: The engine may continue cranking
for up to 15 seconds or until it starts.
Note: If you cannot start the engine on the
first try, wait for a short period and try again.
Failure to Start
If you cannot start the engine after three
attempts, wait 10 seconds and follow this
procedure:
1. Fully press the brake pedal.
2. Fully press the accelerator pedal and hold it there.
3. Start the engine.
Stopping the Engine When Your
Vehicle is Stationary
1. Move the transmission selector lever to position
P. 2. Turn the key to the off position.
3. Apply the parking brake.
Stopping the Engine When Your
Vehicle is Moving
WARNING
Switching off the engine when the
vehicle is still moving will result in a
loss of brake and steering assistance.
The steering will not lock, but higher effort
will be required. When the ignition is
switched off, some electrical circuits,
including air bags, warning lamps and
indicators may also be off. If the ignition
was turned off accidentally, you can shift
into neutral (N) and re-start the engine. 1. Move the transmission selector lever
to position
N and use the brakes to
bring your vehicle to a safe stop.
2. When your vehicle has stopped, move the transmission selector lever to
position
P and turn the key to the off
position.
3. Apply the parking brake.
Cold Weather Starting (Flexible
Fuel Vehicles Only)
The starting characteristics of all grades
of E85 ethanol make it unsuitable for use
when ambient temperatures fall below
0°F (-18°C). Consult your fuel distributor
for the availability of winter grade ethanol.
As the outside temperature approaches
freezing, ethanol fuel distributors should
supply winter grade ethanol (same as with
unleaded gasoline). If summer grade
ethanol is used in cold weather conditions,
0°F to 32°F (-18°C to 0°C), you may
experience increased cranking times, rough
idle or hesitation until the engine has
warmed up.
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Super Duty (), enUSA Starting and Stopping the Engine

In order to prevent the engine from running
at too low an RPM, which may cause it to
stall, SelectShift still automatically makes
some downshifts if it has determined that
you have not downshifted in time.
Although SelectShift makes some
downshifts for you, it still allows you to
downshift at any time as long as the
SelectShift determines that there is no
damage to the engine from over-revving.
SelectShift does not automatically upshift,
even if the engine is approaching the RPM
limit. You must shift manually by pressing
the + button.
Note:
Engine damage may occur if you rev
the engine excessively and hold it without
shifting.
Automatic Transmission Adaptive
Learning
This feature's design is to increase
durability and provide consistent shift feel
over the life of your vehicle. A new vehicle
or transmission may have firm shifts, soft
shifts or both. This operation is normal and
does not affect function or durability of the
transmission. Over time, the adaptive
learning process fully updates transmission
operation. Additionally, whenever you
disconnect the battery or install a new
battery, the system must relearn the
strategy.
Brake-Shift Interlock WARNINGS
Do not drive your vehicle until you
verify that the brake lamps are
working.
When doing this procedure, you will
be taking your vehicle out of park
which means your vehicle can roll
freely. To avoid unwanted vehicle
movement, always fully set the parking
brake prior to doing this procedure. Use
wheel chocks if appropriate. WARNINGS
If the parking brake is fully released,
but the brake warning lamp remains
illuminated, the brakes may not be
working properly. See your authorized
dealer. Your vehicle is equipped with a brake-shift
interlock feature that prevents the
gearshift lever from moving from park (P)
when the ignition is in the 3 (on) position
and the brake pedal is not pressed.
If you cannot move the gearshift lever out
of park (P) position with the ignition in the
4 (on) position and the brake pedal
pressed, a malfunction may have occurred.
It is possible that a fuse has blown or your
vehicle
’s brake lamps are not operating
properly. See Fuse Specification Chart
(page 223).
If the fuse is not blown and the brake
lamps are working properly, the following
procedure allows you to move the gearshift
lever from park (P):
1. Apply the parking brake. Switch the ignition key to 1 (off), then remove the
key.
2. Move the steering column to the full down and full rearward position
(toward the driver ’s seat).
3. Remove the gearshift lever boot.
4. Place fingers into hole where you removed the gearshift lever boot and
pull top half of shroud up and forward
to separate it from the lower half of the
shroud. There is a hinge at the forward
edge of the top shroud. Roll the top
half of the shroud upward on the hinge
point to clear the hazard flasher button,
then pull straight rearward toward the
driver ’s seat to remove.
5. Remove the top half of the shroud.
151
Super Duty (), enUSA Transmission

Mud and Water
Mud
Be cautious of sudden changes in vehicle
speed or direction when you are driving in
mud. Even four-wheel drive vehicles can
lose traction in slick mud. If your vehicle
does slide, steer in the direction of the slide
until you regain control of your vehicle.
After driving through mud, clean off residue
stuck to rotating driveshafts and tires.
Excess mud stuck on tires and rotating
driveshafts can cause an imbalance that
could damage drive components.
Water
If you must drive through high water, drive
slowly. Traction or brake capability may
be limited.
When driving through water, determine the
depth and avoid water higher than the
bottom of the hubs. If the ignition system
gets wet, your vehicle may stall.
Once through water, always try the brakes.
Wet brakes do not stop your vehicle as
effectively as dry brakes. Drying can be
improved by applying light pressure to the
brake pedal while moving slowly.
Note:
Driving through deep water may
damage the transmission. If the front or rear
axle is submerged in water, the axle
lubricant and power transfer unit lubricant
should be checked and changed if
necessary.
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. Note:
Avoid turning on steep slopes or hills.
A danger lies in losing traction, slipping
sideways and possible vehicle roll 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 your vehicle stalls, do not try to turn
around because this could cause vehicle
roll over. It is better to reverse back 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. Disengage
overdrive or move the transmission
selector lever to a lower gear. When
descending a steep hill, avoid sudden hard
braking as you could lose control. The front
wheels have to be turning in order to steer
your vehicle.
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If your vehicle has anti-lock brakes, apply
the brakes steadily. Do not pump the
brakes.
Driving on Snow and Ice
WARNING
If you are driving in slippery
conditions that require tire chains or
cables, then it is critical that you drive
cautiously. Keep speeds down, allow for
longer stopping distances and avoid
aggressive steering to reduce the chances
of a loss of vehicle control which can lead
to serious injury or death. If the rear end of
your vehicle slides while cornering, steer in
the direction of the slide until you regain
control of your vehicle. Note:
Excessive tire slippage can cause
transmission damage.
Four-wheel drive vehicles have advantages
over two-wheel drive 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. Although a
four-wheel drive vehicle may accelerate
better than a two-wheel drive vehicle in
snow and ice, it will not stop any faster as
braking occurs at all four wheels. Do not
become overconfident as to road
conditions. Make sure you allow sufficient distance
between you and other vehicles for
stopping. Drive slower than usual and
consider using one of the lower gears. In
emergency stopping situations, apply the
brake steadily. Do not pump the brake
pedal. See Hints on Driving With
Anti-Lock Brakes (page 164).
If Your Vehicle Gets Stuck In Mud or
Snow WARNING
Do not spin the wheels at over 35
mph (56 km/h). The tires may fail
and injure a passenger or bystander.
If your vehicle gets stuck in mud or snow,
it may be rocked out by shifting between
forward and reverse gears, stopping
between shifts in a steady pattern. Press
lightly on the accelerator in each gear.
Note:
Do not rock your vehicle if the engine
is not at normal operating temperature,
damage to the transmission may occur.
Note: Do not rock your vehicle for more
than a minute, damage to the transmission
and tires may occur or the engine may
overheat.
Parking WARNINGS
If the parking brake is fully released,
but the brake warning lamp remains
illuminated, the brakes may not be
working properly. See your authorized
dealer. Always set the parking brake fully
and make sure the gearshift is
latched in P (Park). Turn the ignition
to the off position and remove the key
whenever you leave your vehicle. 160
Super Duty (), enUSA Four-Wheel Drive
(If Equipped)