
Tow/haul delays upshifts to reduce
frequency of transmission shifting.
Tow/haul also provides engine braking in
all forward gears when the transmission is
in the D (Overdrive) position; this engine
braking will slow the vehicle and assist the
driver in controlling the vehicle when
descending a grade. Depending on driving
conditions and load conditions, the
transmission may downshift, slow the
vehicle and control the vehicle speed when
descending a hill, without the accelerator
pedal being pressed. The amount of
downshift braking provided will vary based
upon the amount the brake pedal is
pressed.
To deactivate the tow/haul feature and
return to normal driving mode, press the
button on the end of the gearshift lever.
The TOW HAUL light will no longer be
illuminated.
When you shut-off and restart the engine,
the transmission will automatically return
to normal D (Overdrive) mode (tow/haul
off).
WARNING
Do not use the tow/haul feature
when driving in icy or slippery
conditions as the increased engine
braking can cause the rear wheels to slide
and the vehicle to swing around with the
possible loss of vehicle control. 3 (Third)
Transmission starts and operates in third
gear only
Used for improved traction on slippery
roads. Selecting 3 (Third) provides engine
braking.
2 (Second)
Use 2 (Second) to start-up on slippery
roads or to provide additional engine
braking on downgrades. 1 (First)
•
Provides maximum engine braking
• Allows upshifts by moving gearshift
lever
• The transmission will not downshift
into 1 (First) at high speeds; it will
downshift to a lower gear and then
shift into 1 (First) when the vehicle
reaches slower speeds.
Forced downshifts
• Allowed in D (Overdrive) with the
tow/haul feature on or off
• Press the accelerator to the floor
• Allows transmission to select an
appropriate gear
Understanding the Shift Positions
of a 6– Speed Automatic
Transmission (If Equipped) Putting your vehicle in or out of gear:
1. Fully press down the brake pedal.
2. Move the gearshift lever into the
desired gear.
3. Come to a complete stop.
4. Move the gearshift lever and securely latch it in P (Park)
P (Park)
This position locks the transmission and
prevents the rear wheels from turning.
143
Super Duty (TFA) TransmissionE163183

R (Reverse)
With the gearshift lever in R (Reverse), the
vehicle will move backward. Always come
to a complete stop before shifting into and
out of R (Reverse).
N (Neutral)
With the gearshift lever in N (Neutral), the
vehicle can be started and is free to roll.
Hold the brake pedal down while in this
position.
D (Overdrive) with tow/haul off
D (Overdrive) with tow/haul off is the
normal driving position for the best fuel
economy. The overdrive function allows
automatic upshifts and downshifts through
gears one through six.
D (Overdrive) with tow/haul on
The tow/haul feature improves
transmission operation when towing a
trailer or a heavy load. All transmission
gear ranges are available when using
tow/haul.
To activate tow/haul, press the
button on the end of the
gearshift lever. The TOW HAUL
indicator light will illuminate in the
instrument cluster. Tow/haul delays upshifts to reduce
frequency of transmission shifting.
Tow/haul also provides engine braking in
all forward gears when the transmission is
in the D (Overdrive) position; this engine
braking will slow the vehicle and assist the
driver in controlling the vehicle when
descending a grade. Depending on driving
conditions and load conditions, the
transmission may downshift, slow the
vehicle and control the vehicle speed when
descending a hill, without the accelerator
pedal being pressed. The amount of
downshift braking provided will vary based
upon the amount the brake pedal is
pressed.
Tow/haul may be automatically activated
(without pressing the tow/haul button).
This provides engine braking to assist the
vehicles braking system when going
downhill and repetitive braking is sensed.
Once the tow/haul mode has been
automatically activated it will not
automatically deactivate.
To deactivate the tow/haul feature and
return to normal driving mode, press the
button on the end of the gearshift lever.
The TOW HAUL light will no longer be
illuminated.
Tow/haul will also deactivate when the
vehicle is powered down for a few minutes.
WARNING
Do not use the tow/haul feature
when driving in icy or slippery
conditions as the increased engine
braking can cause the rear wheels to slide
and the vehicle to swing around with the
possible loss of vehicle control. 144
Super Duty (TFA) TransmissionE163182 E161509

9. Start the vehicle.
Perform Steps 4 through 8 in reverse order,
making sure to engage the hinge pivots
between the upper and lower halves of the
shroud. Keep slight pressure in the forward
direction as the halves are rotated
together.
If Your Vehicle Gets Stuck In Mud
or Snow
Note:
Do not rock the vehicle if the engine
is not at normal operating temperature or
damage to the transmission may occur.
Note: Do not rock the vehicle for more than
a minute or damage to the transmission and
tires may occur, or the engine may overheat.
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.
POWER TAKE-OFF
Auxiliary equipment called power take-off,
or PTO, is often added to the engine or
transmission to operate utility equipment.
Examples include a wheel-lift for tow
trucks, cranes, tools for construction or tire
service, and pumping fluids. PTO
applications draw auxiliary horsepower
from the powertrain, often while the
vehicle is stationary. In this condition, there
is limited cooling air flow through the
radiator and around the vehicle that
normally occurs when a vehicle is moving.
The aftermarket PTO system installer,
having the most knowledge of the final
application, is responsible for determining
whether additional chassis heat protection
or powertrain cooling is required, and
alerting the user to the safe and proper
operation. Ford Super Duty Vehicles are approved for
use as a stationary (including split shaft
capability) or mobile power source, within
limits and operating guidelines detailed in
the Ford Truck Body Builders Layout Book,
found at www.fleet.ford.com/truckbbas,
and through the Ford Truck Body Builders
Advisory Service.
148
Super Duty (TFA) 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.
155
Super Duty (TFA) Four-Wheel Drive (If Equipped)E143949

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 160).
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. 156
Super Duty (TFA) Four-Wheel Drive
(If Equipped)

GENERAL INFORMATION
Note:
Occasional brake noise is normal. If
a metal-to-metal, continuous grinding or
continuous squeal sound is present, the
brake linings may be worn-out. Have the
system checked by an authorized dealer. If
your vehicle has continuous vibration or
shudder in the steering wheel while braking,
have it checked by an authorized dealer.
Note: Brake dust may accumulate on the
wheels, even under normal driving
conditions. Some dust is inevitable as the
brakes wear and does not contribute to
brake noise. See Cleaning the Alloy
Wheels (page 251). See
Warning Lamps and
Indicators (page 77).
Wet brakes result in reduced braking
efficiency. Gently press the brake pedal a
few times when driving from a car wash or
standing water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedal
becomes stuck or entrapped, apply steady
and firm pressure to the brake pedal to
slow the vehicle and reduce engine power.
If you experience this condition, apply the
brakes and bring your vehicle to a safe
stop. Move the transmission selector lever
to position
P, switch the engine off and
apply the parking brake. Inspect the
accelerator pedal for any interference. If
none are found and the condition persists,
have your vehicle towed to the nearest
authorized dealer. Brake Assist
Brake assist detects when you brake
rapidly by measuring the rate at which you
press the brake pedal. It provides
maximum braking efficiency as long as you
press the pedal, and can reduce stopping
distances in critical situations.
Anti-lock Brake System
This system helps you maintain steering
control during emergency stops by keeping
the brakes from locking.
This lamp momentarily
illuminates when you turn the
ignition on. If the light does not
illuminate during start up, remains on or
flashes, the system may be disabled. Have
the system checked by an authorized
dealer. If the system is disabled, normal
braking is still effective. If the
brake warning lamp illuminates
when you release the parking brake, have
the system checked by an authorized
dealer.
HINTS ON DRIVING WITH
ANTI-LOCK BRAKES
Note: When the system is operating, the
brake pedal will pulse and may travel
further. Maintain pressure on the brake
pedal. You may also hear a noise from the
system. This is normal.
The anti-lock braking system will not
eliminate the risks when:
• you drive too closely to the vehicle in
front of you
• your vehicle is hydroplaning
• you take corners too fast
• the road surface is poor.
160
Super Duty (TFA) BrakesE144522 E144522

TRAILER SWAY CONTROL (IF
EQUIPPED) WARNING
Turning off trailer sway control
increases the risk of loss of vehicle
control, serious injury or death. Ford
does not recommend disabling this feature
except in situations where speed reduction
may be detrimental (such as hill climbing),
the driver has significant trailer towing
experience, and can control trailer sway
and maintain safe operation. Note:
This feature does not prevent trailer
sway, but reduces it once it begins.
Note: This feature cannot stop all trailers
from swaying.
Note: In some cases, if vehicle speed is too
high, the system may activate multiple
times, gradually reducing vehicle speed.
This feature applies your vehicle brakes at
individual wheels and, if necessary, reduces
engine power. If the trailer begins to sway,
the stability control light flashes and the
message
TRAILER SWAY REDUCE
SPEED appears in the information display.
The first thing to do is slow your vehicle
down, then pull safely to the side of the
road and check for proper tongue load and
trailer load distribution. See
Load
Carrying (page 176).
RECOMMENDED TOWING
WEIGHTS
Note: Do not exceed a trailer
weight of 5000 pounds (2268
kilograms) when towing with, or
by, bumper only. Note:
Make sure to take into
consideration trailer frontal area.
Do not exceed 60 feet 2
(5.6
meters 2
) trailer frontal area.
Note: Exceeding this limitation
may significantly reduce the
performance of your towing
vehicle. Selecting a trailer with a
low aerodynamic drag and rounded
front design helps optimize
performance and fuel economy.
Note: For high altitude operation,
reduce the gross combined weight
by 2% per 1000 feet (300 meters)
starting at the 1000 foot (300
meter) elevation point.
Note: Certain states require
electric trailer brakes for trailers
over a specified weight. Be sure to
check state regulations for this
specified weight. The maximum
trailer weights listed may be limited
to this specified weight, as your
vehicle's electrical system may not
include the wiring connector
needed to use electric trailer
brakes.
Your vehicle may tow a class I, II,
III and IV trailer or fifth-wheel
trailer provided the maximum
trailer weight is less than or equal
to the maximum trailer weight
listed for your vehicle
configuration on the following
chart.
188
Super Duty (TFA) Towing

•
TRAILER CONNECTED: Displays
when the system senses a correct
trailer wiring connection (a trailer with
electric trailer brakes) during a given
ignition cycle.
• TRAILER DISCONNECTED:
Displays,
accompanied by a single audible time,
when the system senses a trailer
connection and then a disconnection,
either intentional or unintentional,
during a given ignition cycle. It also
displays if a truck or trailer-wiring fault
occurs causing the trailer to appear
disconnected. This message can also
display if you use the manual control
lever without a trailer connected.
B:
Manual control lever: Slide the control
lever to the left to turn on the trailer's
electric brakes independent of the tow
vehicle's See the following Procedure for
adjusting gain section for instructions on
proper use of this feature. If you use the
manual control while the brake is also
applied, the greater of the two inputs
determines the power sent to the trailer
brakes.
• Stop lamps: Using the manual control
lever illuminates both the trailer brake
lamps and your vehicle brake lamps
except the center high-mount stop
lamp, if you make the proper electrical
connection to the trailer. Pressing your
vehicle brake pedal also illuminates
both trailer and vehicle brake lamps.
Procedure for Adjusting Gain
Note: Only perform this procedure in a
traffic-free environment at speeds of
approximately 20-25 mph (30-40 km/h).
The gain setting sets the trailer brake
controller for the specific towing condition.
You should change the setting as towing
conditions change. Changes to towing
conditions include trailer load, vehicle load,
road conditions and weather. The gain should be set to provide the
maximum trailer braking assistance while
making sure the trailer wheels do not lock
when using the brakes. Locked trailer
wheels may lead to trailer instability.
1.
Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.
2. Hook up the trailer and make the electrical connections according to the
trailer manufacturer's instructions.
3. When you plug in a trailer with electric or electric-over-hydraulic brakes,
TRAILER CONNECTED
appears in
the information display.
4. Use the gain adjustment (+ and -) buttons to increase or decrease the
gain setting to the desired starting
point. A gain setting of 6.0 is a good
starting point for heavier loads.
5. In a traffic-free environment, tow the trailer on a dry, level surface at a speed
of 20-25 mph (30-40 km/h) and
squeeze the manual control lever
completely.
6. If the trailer wheels lock up, indicated by squealing tires, reduce the gain
setting. If the trailer wheels turn freely,
increase the gain setting. Repeat Steps
5 and 6 until the gain setting is at a
point just below trailer wheel lock-up.
If towing a heavier trailer, trailer wheel
lock-up may not be attainable even
with the maximum gain setting of 10.
Explanation of Information Display
Warning Messages
Note: An authorized dealer can diagnose
the trailer brake controller to determine
exactly which trailer fault has occurred.
However, your Ford warranty does not cover
this diagnosis if the fault is with the trailer.
193
Super Duty (TFA) Towing