2021 FORD F-450 Owners Manual

Operator Commanded Regeneration
with Automatic Regeneration Control
(If Equipped)
If your vehicle is operated with significant
stationary operation, low speed drive
cycles less than 25 mph (40 km/h), short
drive cycles, drive time less than 15 minutes
or the vehicle does not fully warm up,
passive and active regeneration may not
sufficiently clean the diesel particulate
filter system. You can switch off automatic
regeneration until better driving conditions
are available, for example steady high
speed driving. You can then switch
automatic regeneration back on to clean
the diesel particulate filter.
Switching Automatic Regeneration
Control On and Off
To switch operator commanded
regeneration on and off, use the
information display control on the steering
wheel. See Information Messages (page
121
). Scroll to the exhaust cleaning
message, a check in the box indicates the
feature is enabled, and unchecked
indicates the feature is disabled.
How to Interrupt or Cancel Operator
Commanded Regeneration
If you need to cancel the operator
commanded regeneration, pressing the
brake, accelerator or switching the engine
off stops the procedure. Depending on the
amount of time you allowed the operator
commanded regeneration to operate, soot
may not have had sufficient time to be fully
eliminated, but the exhaust system and
exhaust gas may still be hot. If you shut
your vehicle off during operator
commanded regeneration, you may notice
turbo flutter. This is a normal consequence
caused by shutting off a diesel engine
during boosted operation and is considered
normal. Filter Service and Maintenance
Over time, a slight amount of ash builds
up in the diesel particulate filter, which is
not removed during the regeneration
process. The filter may need to be replaced
with a new or remanufactured part at
approximately 250,000 mi (400,000 km).
Actual mileage varies depending on engine
and vehicle operating conditions.
If filter service is required, the
engine control system warning
lamp illuminates in the
information display. If there are any issues with the
diesel particulate filter system,
the engine control system
warning lamp and a service
engine soon warning lamp
illuminate to inform you that
your vehicle requires service. Have your
vehicle checked as soon as possible.
Resonator and Tailpipe Assembly
Maintenance
Aftermarket devices or modifications to
the exhaust system may reduce the
effectiveness of the exhaust system as
well as cause damage to the exhaust
system or engine. This may also degrade
vehicle performance and could lead to
engine damage that may not be covered
by the vehicle Warranty.
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AUTOMATIC TRANSMISSION
WARNING: Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you leave your vehicle. Failure to follow
this instruction could result in personal
injury or death. WARNING:
When your vehicle is
stationary, keep the brake pedal fully
pressed when shifting gears. Failure to
follow this instruction could result in
personal injury, death or property
damage.
Note: You may not be able to shift out of
park (P) unless the intelligent access key is
inside your vehicle.
Understanding the Shift Positions
of Your Automatic Transmission
6-Speed Transmissions 10-Speed Transmissions Putting your vehicle in or out of gear:
1. Fully press down the brake pedal.
2. Move the gearshift lever into the
preferred gear.
3. When you have finished driving, come to a complete stop.
4. Move the gearshift lever and securely latch it in park (P).
The instrument cluster displays the current
gear.
Park (P)
This position locks the transmission and
prevents the rear wheels from turning.
Reverse (R)
With the gearshift lever in reverse (R), your
vehicle moves backward. Always come to
a complete stop before shifting into and
out of reverse (R).
Neutral (N)
With the gearshift lever in neutral (N), you
can start your vehicle and it is free to roll.
Hold the brake pedal down when in this
position.
Drive (D)
Drive (D) is the normal driving position for
the best fuel economy. The drive function
allows automatic upshifts and downshifts
through the full range of gears.
Manual (M)
With the gearshift lever in manual (M), the
driver can change gears up or down as
preferred. By moving the gearshift lever
from drive position drive (D) to manual
(M), you now have control of selecting the
gear you prefer using buttons on the shift
lever.
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To return to the normal drive (D) position,
move the shift lever from manual (M) to
drive (D).
The transmission operates through the full
range of gears.
Forced downshifts
•
Allowed in drive (D) with the tow/haul
feature on or off.
• Press the accelerator to the floor.
• Allows transmission to select an
appropriate gear.
Understanding Your SelectShift
Automatic ™ TransmissionNote:
When pressing the button on the
gearshift lever, you can cycle through the
available drive modes. See Drive Control
(page 268).
Your vehicle has a SelectShift Automatic ™
transmission gearshift lever. The
SelectShift Automatic transmission gives
you the ability to change gears up or down
without a clutch. To prevent the engine from running at too
low an RPM, which may cause it to stall,
SelectShift still makes some downshifts
for you if it determines that you have not
downshifted in time. Although SelectShift
makes some downshifts for you, it still
allows you to downshift at any time if the
SelectShift determines that damage to
the engine cannot occur from over-revving.
SelectShift does not upshift, even if the
engine is approaching the RPM limit. Shift
it manually by pressing the + button.
Note:
Engine damage could occur if you
maintain excessive engine revving without
shifting.
The SelectShift Automatic transmission
feature has two modes:
• Progressive Range Selection.
• Manual (M).
Progressive Range Selection - PRS Progressive Range Selection gives you the
ability to lockout gears from the automatic
shifting range. This could provide you with
an improved driving experience, for
example, in slippery conditions or when
experiencing a steep slope.
With the gearshift lever in drive (D), press
the – button to active PRS. The instrument
cluster indicates the available and selected
gears.
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All available gears display with the current
gear indicated. Press the – button again to
lock out gears beginning with the highest
gear, for example, press the – button twice
to lock out 10th and 9th gears. Only the
available gears display, and the
transmission shifts between the available
gears. Press the + button to unlock gears
to allow the transmission to shift to higher
gears. The transmission shifts within the
gear range you select.
Manual (M)
Moving the gearshift lever to the manual
(M) position allows you to manually select
the gear you prefer. Only the current gear
displays. Use the buttons on the gearshift
lever to manually select gears. Press the
+ button to upshift or the – button to
downshift. Return the transmission to a
different gearshift position to deactivate
manual control.
Recommended shift speeds
Upshift according to the following chart: 6-Speed Transmissions
Upshifts when Accelerating (Recom-
mended for Best Fuel Economy)
Gasoline Engines
Shift from:
8 mph (13 km/h)
1 - 2
16 mph (26 km/h)
2 - 3
22 mph (35 km/h)
3 - 4
35 mph (56 km/h)
4 - 5
44 mph (71 km/h)
5 - 6 Upshifts when Accelerating (Recommended for Best Fuel Economy) 10-Speed
Diesel engines
Gasoline engines
Shift from:
10 mph (16 km/h)
7 mph (11 km/h)
1 - 2
15 mph (24 km/h)
10 mph (16 km/h)
2 - 3
19 mph (31 km/h)
17 mph (27 km/h)
3 - 4
22 mph (35 km/h)
20 mph (32 km/h)
4 - 5
25 mph (40 km/h)
23 mph (37 km/h)
5 - 6
31 mph (50 km/h)
29 mph (47 km/h)
6 - 7
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Upshifts when Accelerating (Recommended for Best Fuel Economy) 10-Speed
36 mph (58 km/h)
34 mph (55 km/h)
7 - 8
45 mph (72 km/h)
44 mph (71 km/h)
8 - 9
49 mph (79 km/h)
47 mph (76 km/h)
9 - 10
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.
Neutral Idle with F350, F450, F550
and F600 Chassis Cab Vehicles
Your transmission could reduce the load
on the engine when the vehicle stops, and
the gear selector is in drive (D) to reduce
fuel consumption and emissions. The
transmission resumes operation when you
release the brake. This feature activates
when the transmission is sufficiently
warmed, and the vehicle is on a level slope.
Brake-Shift Interlock WARNING: When doing this
procedure, you need to take the
transmission out of park (P) which
means your vehicle can roll freely. To
avoid unwanted vehicle movement,
always fully apply the parking brake prior
to doing this procedure. Use wheels
chocks if appropriate. WARNING:
If the parking brake is
fully released, but the brake warning
lamp remains illuminated, the brakes
may not be working properly. Have your
vehicle checked as soon as possible.
Note: Do not drive your vehicle until you
verify that the brake lamps are working.
Your vehicle comes with brake-shift
interlock that prevents the gearshift lever
from moving from park (P) when you
switch the ignition on but have not pressed
the brake pedal.
If you cannot move the gearshift lever out
of the park (P) position when the ignition
is on and the brake pedal pressed, a
malfunction could 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 339).
If you do not have a blown fuse 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 - 0, then remove the
key.
2. Move the steering column to the full down and full rearward position,
toward the driver seat.
3. Remove the gearshift lever boot.
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4. Place your fingers into the hole where
you removed the gearshift lever boot
and pull the top half of the 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, then pull
straight rearward toward the driver
seat to remove.
5. Remove the top half of the shroud.
6. Remove the three fasteners under the column that secure the lower shroud
half to the column. 7. Pull the lock lever into the fully
unlocked position and remove the
lower shroud cover by pulling the lever
handle through the slot in the cover.
8. Apply the brake. Gently lift the override
disk and move the gearshift lever into
neutral (N). 9. Start your vehicle.
Perform steps 4 through 8 in reverse order
to get the shroud back together, making
sure to engage the hinge pivots between
the upper and lower halves of the shroud.
Keep slight pressure in the forward
direction as you rotate the halves together.
If Your Vehicle Gets Stuck in Mud
or Snow
If your vehicle is stuck in mud or snow, you
can rock it 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 or
damage to the transmission could occur.
Note: Do not rock your vehicle for more
than a minute or damage to the
transmission and tires could occur, or the
engine could overheat.
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POWER TAKE-OFF (IF EQUIPPED)
Note: Use of auxiliary equipment that
exceeds the maximum Power Take-Off
(PTO) load specified in our Truck Body
Builders Layout Book can adversely affect
the performance of the powertrain system.
Refer to the Body Builders Layout Book for
instructions about the appropriate
installation of additional equipment.
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.
Split Shaft Capability
(If Equipped)
Our Super Duty vehicles are approved for
use as a stationary, including split shaft
capability with 6.7L diesel only, or mobile
power source, within limits and operating
guidelines detailed in our Truck Body
Builders Layout Book. For additional
information, visit
www .f or dbb a s. c om .
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USING FOUR-WHEEL DRIVE
Note:
For important information regarding
the safe operation of this type of vehicle,
see General Information in the Wheels and
Tires chapter.
Note: Do not use 4H or 4L mode on dry,
hard surfaced roads. Doing so can produce
excessive noise, increase tire wear and may
damage drive components. 4X4 mode is
only intended for consistently slippery or
loose surfaces. Use of 4L mode on these
surfaces may produce some noise, such as
occasional clunks, but will not damage drive
components.
Note: If 4X4 low is selected while the
vehicle is moving above 3 mph (5 km/h),
the 4WD system will not perform a shift.
This is normal and should be no reason for
concern. Refer to Shifting to or from 4L (4X4
Low) for proper operation.
Note: You can switch on and switch off the
electronic locking differential by pulling the
4WD control (4WD vehicles) or turning the
electronic locking differential control (2WD
vehicles). See
Electronic Locking
Differential (page 221).
Electronic Shift-On-the-Fly
(ESOF) 4WD system
(If Equipped)
Note: If 4X4 Low is selected while the
vehicle is moving above
3 mph (5 km/h),
the 4WD system will not perform a shift.
This is normal and should be no reason for
concern. Refer to Shifting to or from 4L (4X4
Low) for proper system operation.
Note: Auto-manual hub locks can be
manually locked by rotating the hub lock
control from AUTO to LOCK. For proper operation, make sure that each
hub is fully engaged and that both hub
locks are set to the same position (both
set to LOCK or both set to AUTO). To
engage LOCK, turn the hub locks
completely clockwise; to engage AUTO,
turn the hub locks completely
counterclockwise.
The ESOF 4WD system:
•
Provides 4x4 High engagement and
disengagement while the vehicle is
moving.
• Is operated by a rotary control located
on the instrument panel that allows
you select 4x2, 4x4 High or 4x4 Low
operation.
• Uses auto-manual hub locks that can
be engaged and disengaged
automatically based on the 4x4 mode
selected.
• Will increase fuel economy when used
in the hub lock's recommended AUTO
mode.
4WD Indicator Lights
Note: When a 4X4 system fault is present,
the system will typically remain in whichever
4X4 mode was selected prior to the fault
condition occurring. It will not default to 4X2
in all circumstances. When this warning is
displayed, have your vehicle serviced by an
authorized dealer.
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(If Equipped)LOC K
OTUAE339076