four wheel drive FORD F-150 2021 Owners Manual

Automatic Transmission
Automatic Transmission Precautions
........................................................................\
.281
Automatic Transmission Positions .......
281
Shifting Your Vehicle Into Gear ..............
282
Shifting Your Vehicle Into Gear - Raptor ........................................................................\
282
Shifting Your Vehicle Into Gear - Police Responder .................................................
283
Manually Shifting Gears ...........................
283
Temporary Neutral Mode ........................
285
Using Progressive Range Selection ......
286
Automatic Return to Park (P) ...............
286
Stowing the Selector Lever - Vehicles With: Console Shift ................................
287
Stowing the Selector Lever - Raptor ........................................................................\
287
Manual Park Release ................................
288
Four-Wheel Drive
How Does Four-Wheel Drive Work - Raptor ..........................................................
291
How Does Four-Wheel Drive Work .......
291
Four-Wheel Drive Precautions ..............
292
Four-Wheel Drive Limitations ................
292
Selecting a Four-Wheel Drive Mode - Raptor .........................................................
293
Selecting a Four-Wheel Drive Mode ....
294
Four-Wheel Drive Modes .........................
295
Four-Wheel Drive Indicators ..................
296
Four-Wheel Drive – Troubleshooting ........................................................................\
297
Electronic Locking Differential
What Is the Electronic Locking Differential .................................................
301
How Does the Electronic Locking Differential Work - Raptor ...................
301
How Does the Electronic Locking Differential Work .....................................
301Electronic Locking Differential
Precautions ...............................................
301
Switching the Electronic Locking Differential On and Off - Raptor .......
302
Switching the Electronic Locking Differential On and Off - 4x4 .............
303
Switching the Electronic Locking Differential On and Off - 4x2 .............
305
Electronic Locking Differential Indicators .......................................................................
306
Electronic Locking Differential – Troubleshooting .....................................
306
Brakes
Brake Precautions ......................................
308
Anti-Lock Braking System ......................
308
Brake Over Accelerator - Raptor ..........
308
Brake Over Accelerator ............................
308
Locating the Brake Fluid Reservoir ......
308
Checking the Brake Fluid .........................
309
Brake Fluid Specification ........................
309
Brakes – Troubleshooting ........................
310
Electric Parking Brake
What Is the Electric Parking Brake .........
311
Applying the Electric Parking Brake .......
311
Applying the Electric Parking Brake in an Emergency ..................................................
311
Manually Releasing the Electric Parking Brake ..............................................................
311
Automatically Releasing the Electric Parking Brake .............................................
311
Electric Parking Brake Audible Warning ........................................................................\
.
312
Releasing the Electric Parking Brake if the Vehicle Battery Has Run Out of
Charge ..........................................................
312
Electric Parking Brake – Troubleshooting ........................................................................\
.
312
Reverse Braking Assist
What Is Reverse Braking Assist ..............
314
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See Selecting a Four-Wheel Drive Mode (page 294).
L
See
Using the Integrated Trailer Brake Controller (page 434).
M
INSTRUMENT PANEL - RAPTOR See
Instrument Cluster Overview (page 171). See Instrument Cluster
Overview (page 170). See Instrument Cluster Overview (page 169).
A
See
Switching Active Park Assist On and Off (page 346).
B
See
Switching the Hazard Flashers On and Off (page 485).
C
See
Switching Trail Control On and Off (page 324).
D
See
Opening the Glove Compartment (page 232).
E
See
Feature Bar (page 638).
F
See
What Is the Power Outlet (page 227).
G
See
Identifying the Audio Unit (page 626).
H
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See Identifying the Climate Control Unit (page 186). See Identifying the
Climate Control Unit (page 191).
I
See
Selecting a Drive Mode (page 372).
J
See
Selecting a Four-Wheel Drive Mode (page 294).
K
See
Using the Integrated Trailer Brake Controller (page 434).
L
INSTRUMENT PANEL - POLICE RESPONDER See
Instrument Cluster Overview (page 171). See Instrument Cluster
Overview (page 170). See Instrument Cluster Overview (page 169).
A
See
Switching Traction Control On and Off (page 319).
B
See
Switching the 360 Degree Camera On and Off (page 344).
C
See
Switching the Hazard Flashers On and Off (page 485).
D
See
Switching Active Park Assist On and Off (page 346).
E
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See Feature Bar (page 638).
F
See
Opening the Glove Compartment (page 232).
G
See
What Is the Power Outlet (page 227).
H
See
Identifying the Climate Control Unit (page 186). See Identifying the
Climate Control Unit (page 191).
I
See
Identifying the Audio Unit (page 626).
J
See
Selecting a Four-Wheel Drive Mode (page 294).
K
VEHICLE INTERIOR See
Shifting Using the Buttons on the Selector Lever (page 284).
A
See
Using the Center Console Work Surface (page 228). See Using the
Center Console Work Surface (page 229).
B
40
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Oil Pressure
It illuminates when the engine
oil pressure is low.
Powertrain Malfunction, Reduced
Power, Electronic Throttle Control,
Check 4X4 Illuminates when the powertrain
or four-wheel drive require
service. Have the system
checked as soon as possible.
Malfunction Indicator Lamp It illuminates when the ignition
is on and the engine is off, this is
normal. If it illuminates when the
engine is on this indicates the emission
control system requires service. If it flashes,
have your vehicle checked immediately.
See Emission Law (page 760). See
Starting and Stopping the Engine –
Warning Lamps
(page 244).
Stop Safely Illuminates if an electrical
component requires service or a
failure that causes your vehicle
to shutdown or enter into a limited
operating mode.
Tailgate Ajar It illuminates when the ignition
is on and the tailgate is not
completely closed.
Water in Fuel It illuminates when the fuel and
water separator has a significant
quantity of water in it and
requires immediate draining. WHAT ARE THE INSTRUMENT
CLUSTER INDICATORS
Indicators notify you of various features
that are active on your vehicle.
INSTRUMENT CLUSTER
INDICATORS
Adaptive Cruise Control
See
Adaptive Cruise Control
(page 352).
Automatic High Beam See
Automatic High Beam
Control Indicators (page 154).
Automatic Regen Control Off See
Diesel Particulate Filter
Precautions (page 268).
Auto Hold Active See
Auto Hold (page 318).
Auto Hold Unavailable See
Auto Hold (page 318).
Auto-Start-Stop See
Auto-Start-Stop (page
252).
Blind Spot Monitor See
Blind Spot Information
System (page 389).
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BlueCruise
See BlueCruise (page 365).
Cruise Control See Cruise Control (page 350).
Electronic Locking Differential See
Electronic Locking
Differential (page 301).
Four-Wheel Drive See
Four-Wheel Drive (page
291).
Note: Some indicators appear different
depending on vehicle options.
Front Airbag See
Airbags (page 72).
Front Fog Lamp See
Switching the Front Fog
Lamps On and Off (page 150).
High Beam See
Using the High Beam
Headlamps (page 147). Hill Descent See Hill Descent Control
(page
330).
Lamps On See
Exterior Lighting Control
(page 147).
Ready to Drive See
Hybrid Electric Vehicle
Information (page 249).
Reverse Brake Assist See
Reverse Braking Assist
(page 314).
Stability Control and Traction
Control See
Traction Control (page
319). See Stability Control
(page 321).
Turn Signal Lamps See Switching the Turn Signal
Lamps On and Off (page 149).
Tow Haul See
Towing a Trailer (page 428).
Wait to Start See
Starting a Diesel Engine
(page 238).
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INSTRUMENT CLUSTER
INDICATORS - POLICE
RESPONDER
Active Drive Assist
See BlueCruise (page 365).
Adaptive Cruise Control See
Adaptive Cruise Control
(page 352).
Automatic High Beam See
Automatic High Beam
Control Indicators (page 154).
Automatic Regen Control Off See
Diesel Particulate Filter
(page 268).
Auto Hold Active See
Auto Hold (page 318).
Auto Hold Unavailable See
Auto Hold (page 318).
Auto-Start-Stop See
Auto-Start-Stop (page
252).
Blind Spot Monitor See
Blind Spot Information
System (page 389). Cruise Control See Cruise Control (page 350).
Electronic Locking Differential See
Electronic Locking
Differential (page 301).
Four-Wheel Drive See
Four-Wheel Drive (page
291).
Note: Some indicators appear different
depending on vehicle options.
Front Airbag See
Airbags (page 72).
Front Fog Lamp See
Switching the Front Fog
Lamps On and Off (page 150).
High Beam See
Using the High Beam
Headlamps (page 147).
Hill Descent See Hill Descent Control
(page
330).
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If it flashes, engine misfire could be
occurring. Increased exhaust gas
temperatures could damage the catalytic
converter or other vehicle components.
Avoid heavy acceleration and deceleration,
and have your vehicle checked as soon as
possible.
Powertrain Warning Lamp If it illuminates when the engine
is running, this indicates a
powertrain or four-wheel drive
fault. If it flashes when you are driving,
immediately reduce the vehicle speed.
Avoid heavy acceleration and deceleration,
and have your vehicle checked as soon as
possible.
If both lamps illuminate when the engine
is running, stop your vehicle as soon as it
is safe to do so. Continuing to drive your
vehicle could cause reduced power or the
engine to stop. Switch the ignition off and
attempt to restart the engine. Have your
vehicle checked as soon as possible.
STARTING AND STOPPING THE ENGINE – INFORMATION MESSAGES Action
Message
Displays if you exceed the starting time limit. You cannot
attempt to start the engine for 15 minutes. If you cannot start
the engine after 15 minutes passes, have your vehicle imme-
diately checked.
Cranking Time Exceeded
Displays if you are unable to start your vehicle with a correctly
coded key. The system has detected a fault that requires
service. Have your vehicle checked as soon as possible.
Starting System Fault
Displays if the system does not detect a valid passive key.
No Key Detected
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HOW DOES FOUR-WHEEL
DRIVE WORK - RAPTOR
The 2-speed automatic four-wheel drive
system utilizes an electronically controlled
on-demand 2-speed transfer case. This
system monitors various vehicle sensory
inputs to provide an increased level of
performance. This system offers the driver
two-wheel drive high, four-wheel drive
auto, four-wheel drive high, and four-wheel
drive low as available modes of operation.
When four-wheel drive auto is selected,
the system continuously varies power to
the front wheels for optimum performance
for all on-road conditions. When either
four-wheel drive high or four-wheel drive
low are selected, the system provides
mechanically locked power to the front
and rear wheels for use in off-road or
slippery conditions such as deep snow,
sand or mud. Selecting four-wheel drive
low also provides additional gearing for
increased torque multiplication for
conditions like deep sand, steep slopes, or
pulling heavy objects. Additionally, the
system is capable of recreational flat
towing by putting the transfer case into
neutral (N). See Recreationally Towing
Your Vehicle (page 490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
HOW DOES FOUR-WHEEL
DRIVE WORK
Using the Electronic Shift On the
Fly System
(If Equipped)
This four-wheel drive system utilizes a
2-speed Electronic Shift On the Fly (ESOF)
transfer case which is also known as a
part-time system. This system offers the
driver two-wheel drive high, four-wheel
drive high, and four-wheel drive low as available modes of operation. When either
four-wheel drive high or four-wheel drive
low are selected, the system provides
mechanically locked four-wheel drive
power to both the front and rear wheels
for use in off-road or slippery conditions
such as deep snow, sand or mud. Selecting
four-wheel drive low also provides
additional gearing for increased torque
multiplication for conditions like deep
sand, steep slopes, or pulling heavy
objects. Additionally, the system is capable
of recreational flat towing by putting the
transfer case into neutral (N). See
Recreationally Towing Your Vehicle
(page
490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
Using the 2-Speed Automatic
Four-Wheel Drive System (If Equipped)
The 2-speed automatic four-wheel drive
system utilizes an electronically controlled
on-demand 2-speed transfer case. This
system monitors various vehicle sensory
inputs to provide an increased level of
performance. This system offers the driver
two-wheel drive high, four-wheel drive
auto, four-wheel drive high, and four-wheel
drive low as available modes of operation.
When four-wheel drive auto is selected,
the system continuously varies power to
the front wheels for optimum performance
for all on-road conditions. When either
four-wheel drive high or four-wheel drive
low are selected, the system provides
electronically or mechanically locked
power to the front and rear wheels for use
in off-road or slippery conditions such as
deep snow, sand or mud. Selecting
four-wheel drive low also provides
additional gearing for increased torque
multiplication for conditions like deep
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(If Equipped)

sand, steep slopes, or pulling heavy
objects. Additionally, the system is capable
of recreational flat towing by putting the
transfer case into neutral (N). See
Recreationally Towing Your Vehicle
(page
490).
There is further information on driving in
unique driving conditions.
See Off-Road
Driving (page 470).
FOUR-WHEEL DRIVE
PRECAUTIONS WARNING:
Vehicles with a higher
center of gravity (utility and four-wheel
drive vehicles) handle differently than
vehicles with a lower center of gravity
(passenger cars). Avoid sharp turns,
excessive speed and abrupt steering in
these vehicles. Failure to drive cautiously
increases the risk of losing control of your
vehicle, vehicle rollover, personal injury
and death. WARNING:
Do not become
overconfident in the ability of four-wheel
drive vehicles. Although a four-wheel
drive vehicle may accelerate better than
a two-wheel drive vehicle in low traction
situations, it won't stop any faster than
two-wheel drive vehicles. Always drive
at a safe speed.
Truck and utility vehicles can differ from
some other vehicles. Your vehicle could be
higher to allow it to travel over rough
terrain without getting stuck or damaging
underbody components. The differences
that make your vehicle so versatile also
make it handle differently than an ordinary
passenger car. Always maintain steering
wheel control, especially in rough terrain.
Since sudden changes in terrain can result
in abrupt steering wheel motion, make sure
you grip the steering wheel from the outside. Do not grip the spokes. Drive
cautiously to avoid vehicle damage from
concealed objects such as rocks and
stumps. Drive slower in strong crosswinds
which can affect the normal steering
characteristics of your vehicle. Be
extremely careful when driving on
pavement made slippery by loose sand,
water, gravel, snow or ice.
Note:
Do not use four-wheel drive high or
four-wheel drive low mode on dry, hard
surfaced roads. Doing so can produce
excessive noise, increase tire wear and can
damage drive components.
FOUR-WHEEL DRIVE
LIMITATIONS
Operating Four-Wheel Drive with
a Spare or Mismatched Tires
(If
Equipped)
On four-wheel drive vehicles, the size of
the spare tire can affect the four-wheel
drive system. If there is a significant
difference between the size of the spare
tire and the remaining tires, you could have
limited four-wheel drive functionality.
When driving with the full-size dissimilar
spare wheel and tire assembly, we
recommend that you do not:
• Exceed
50 mph (80 km/h) with a
four-wheel drive mode turned on.
• Turn on a four-wheel drive mode
unless the vehicle is stationary.
• Use a four-wheel drive mode on dry
pavement.
Driving with the full-size dissimilar spare
wheel and tire assembly can limit
four-wheel drive functionality, especially
when driving in a mechanically locked
four-wheel drive mode. You can experience
the following:
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(If Equipped)