traction control FORD EXPEDITION 2021 Owners Manual

Wireless Accessory Charger Precautions
........................................................................\
180
Locating the Wireless Accessory Charger ........................................................................\
180
Charging a Wireless Device .....................
180
Storage Compartments
Center Console .............................................
182
Overhead Console .......................................
182
Starting and Stopping the Engine
General Information ...................................
183
Ignition Switch ..............................................
183
Keyless Starting ...........................................
183
Starting a Gasoline Engine ......................
184
Engine Block Heater ...................................
187
Unique Driving Characteristics
Auto-Start-Stop ..........................................
189
Fuel and Refueling
Safety Precautions ......................................
192
Fuel Quality ....................................................
192
Fuel Filler Funnel Location .......................
193
Running Out of Fuel ...................................
193
Refueling .........................................................
195
Fuel Consumption .......................................
197
Engine Emission Control
Emission Law ................................................
199
Catalytic Converter ....................................
200
Transmission
Automatic Transmission .........................
203
Four-Wheel Drive
Using Four-Wheel Drive ............................
210Rear Axle
Limited Slip Differential
............................
218
Brakes
General Information ...................................
219
Hints on Driving With Anti-Lock Brakes ........................................................................\
.
219
Electric Parking Brake ...............................
220
Hill Start Assist .............................................
221
Traction Control
Principle of Operation ...............................
223
Using Traction Control ..............................
223
Stability Control
Principle of Operation ...............................
224
Using Stability Control ..............................
225
Hill Descent Control
Principle of Operation ................................
227
Using Hill Descent Control .......................
227
Parking Aids
Principle of Operation ...............................
228
Rear Parking Aid ..........................................
229
Front Parking Aid ........................................
230
Side Sensing System .................................
232
Active Park Assist .......................................
233
Rear View Camera .....................................
240
360 Degree Camera ..................................
243
Cruise Control
What Is Cruise Control ..............................
246
Switching Cruise Control On and Off ........................................................................\
246
Setting the Cruise Control Speed ........
246
Canceling the Set Speed .........................
247
Resuming the Set Speed .........................
247
Cruise Control Indicators ..........................
247
Using Adaptive Cruise Control ...............
247
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Note:
Not every feature applies to every
vehicle in every market. When they are
available for your vehicle, then they appear
in your information display, providing
choices to switch them on or off, or to select
a more specific setting.
• Various vehicle speed limits so the
MyKey driver cannot exceed certain
speeds. The information display shows
warnings followed by an audible tone
when the MyKey driver reaches the set
speed. You cannot override the set
speed by fully depressing the
accelerator pedal. WARNING: Do not set MyKey
maximum speed limit to a limit that will
prevent the driver from maintaining a
safe speed considering posted speed
limits and prevailing road conditions. The
driver is always responsible to drive in
accordance with local laws and
prevailing conditions. Failure to do so
could result in accident or injury. •
Various vehicle speed reminders so
MyKey drivers know when their vehicle
speed approaches the limits. Warnings
appear in your information display and
a tone sounds when the MyKey drivers
exceed the set vehicle speed.
• The audio system's maximum volume
limits to 45% so MyKey drivers can
concentrate on the road. A message
appears in the information display
when MyKey drivers attempt to exceed
the limited volume. MyKey also
disables the automatic volume control.
Note:
If your vehicle includes an
AM/FM radio or a very basic audio
system, then the radio may not limit.
• Always on setting. This setting forces
certain features to remain on and
active for MyKey drivers. For example,
E911 or emergency assistance and the
do not disturb features stay on even if
a MyKey driver uses the feature's
control to switch it off. When selected,
you will not be able to turn off Advance
Trac or traction control (if your vehicle
has this feature).
CREATING A MYKEY
Use the information display to create a
MyKey:
1. Insert the key you want to program into
the ignition. If your vehicle has a
push-button start, place the remote
control into the backup slot. See
Starting a Gasoline Engine
(page
184).
2. Switch the ignition on.
3. Access the main menu in the information display and then scroll
through the menus to change the
settings of your MyKey. From the
MyKey menu select the option Create
MyKey. See
Information Displays
(page 119).
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™

Normally, it illuminates until the engine is
cranked and automatically turns off if no
concerns are present. However, if after 15
seconds it flashes eight times, this
indicates that your vehicle is not ready for
Inspection and Maintenance (I/M) testing.
See Catalytic Converter (page 200).
Stability Control and Traction
Control Indicator Flashes during operation.
If it does not illuminate when you
switch the ignition on, or remains
on when the engine is running, this
indicates a concern. Have your vehicle
checked as soon as possible.
Note: The system turns off if there is a
concern.
See
Using Stability Control (page 225).
Stability Control and Traction
Control Off Warning Lamp It illuminates when you switch
the system off.
Tow Haul Indicator Illuminates when the tow/haul
feature has been activated. If the
light flashes steadily, have the
system serviced immediately. Damage to
the transmission could occur.
AUDIBLE WARNINGS AND
INDICATORS
Key in Ignition Warning Tone
Sounds when you leave the key in the
ignition and the driver door open. Keyless Warning Alert
Sounds the horn twice when you exit your
vehicle with the intelligent access key and
the keyless vehicle is in RUN, indicating the
vehicle is still on.
Headlamps On Warning Tone
Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is
not in the ignition) and the driver door is
open.
Parking Brake On Warning Tone
Sounds when you have left the parking
brake on and drive your vehicle. If the
warning chime remains on after you have
released the parking brake, have the
system checked by an authorized dealer
immediately.
Direction Indicator Tone
Sounds when you leave the direction
indicator on when driving the vehicle more
than
1.5 mph (2.4 km/h).
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Adaptive Cruise Control
Action
Message
A condition exists that is preventing the adaptive cruise control fromengaging. See What Is Cruise Control (page 246).
Adaptive Cruise
Malfunction
A condition exists such that the adaptive cruise cannot functionproperly. See
What Is Cruise Control (page 246).
Adaptive Cruise
Not Available
You have a blocked sensor due to inclement weather, ice, mud or
water in front of the radar sensor. You can typically clean the sensor to resolve. See
What Is Cruise Control (page 246).
Adaptive Cruise
Not Available
Sensor Blocked See Manual
The system has disabled the automatic braking.
Normal Cruise
Active Adaptive Braking Off
A condition exists that is preventing the adaptive cruise control from engaging.
Front Sensor Not
Aligned
The adaptive cruise has reinstated controls to you.
Adaptive Cruise -
Driver Resume Control
Your vehicle speed is too slow to activate the adaptive cruise.
Adaptive Cruise
Speed Too Low to Activate
The adaptive cruise is automatically adjusting the gap distance andyou need to shift the transmission into a lower gear.
Adaptive Cruise
Shift Down
AdvanceTrac and Traction Control Action
Message
The system detects a condition that requires service. Contact anauthorized dealer as soon as possible.
Service Advan-
ceTrac
The status of the AdvanceTrac system after you switched it off.
AdvanceTrac Off
The status of the AdvanceTrac system after you switched it on.
AdvanceTrac On
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Action
Message
The status of the AdvanceTrac sport mode after you switched it on.
AdvanceTrac
SPORT MODE
The status of the traction control system after you switched it off.See Using Traction Control (page 223).
Traction Control
Off
The status of the traction control system after you switched it on.See
Using Traction Control (page 223).
Traction Control
On
Airbag Action
Message
Displays when the system detects a to a blocked sensor. Remove objects near the passenger seat.
Occupant Sensor
BLOCKED Remove Objects Near
Passenger Seat
Alarm and Security Action
Message
Alarm triggered due to unauthorized entry. See Anti-Theft Alarm (page
87).
Vehicle Alarm To
Stop Alarm, Start Vehicle.
Automatic Engine Shutdown Action
Message
The engine is getting ready to shut off.
Engine Shuts Off In
{seconds to shutoff:#0} Seconds
The engine has shut off to help increase fuel economy.
Engine Shut Off
For Fuel Economy
The engine is getting ready to shut off. Press and hold the OK button to override the system.
Engine Shuts Off in
{seconds to shutoff:#0} Seconds
Press Ok to Over- ride
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Action
Message
Belt-Minder turns on with a MyKey in use.
Buckle Up to
Unmute Audio
With a MyKey in use, AdvanceTrac turns on.
AdvanceTrac On -
MyKey Setting
With a MyKey in use, traction control turns on.
Traction Control
On - MyKeySetting
With a MyKey in use, park aid is always on.
MyKey Park Aid
Cannot be Deactiv- ated
With a MyKey in use, lane keeping alert turns on.
Lane Keeping Alert
On MyKey Setting
Off Road Action
Message
Hill descent control mode is active.
Hill Descent Control Active
Hill descent control mode is inactive.
Hill Descent Control OFF
Your vehicle speed requirement for off-roadmode entry has not been met.
For Hill Descent Reduce Speed XX MPH/
km/h or Less
You need to select a transmission gear forhill descent mode.
For Hill Descent Select Gear
Hill descent control mode is deactivatedand you must resume control.
Hill Descent Driver Resume Control
Displays when the system requires service.Have the system checked as soon as possible.
Hill Descent Control Fault
The hill descent system is cooling due tooveruse.
Hill Descent Control Off System Cooling
The hill descent control system is ready.
Hill Descent Control Ready
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USING FOUR-WHEEL DRIVE
Note:
Please review important information
regarding the safe operation of this type of
vehicle. See General Information (page
361).
Note: Do not use 4H or 4L mode on dry,
hard surfaced roads. Doing so can produce
excessive noise, increase tire wear and could
damage drive components. Using 4H and
4L 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 does not
damage drive components.
Note: If 4L mode is selected when your
vehicle is moving above
3 mph (5 km/h),
the four-wheel drive system does not
perform a shift. This is normal and should
be no reason for concern.
4X4 Indicator Lights
4X2 Momentarily illuminates when
2H is selected.
4X4 AUTO Continuously illuminates when
4A is selected.
4X4 HIGH Continuously illuminates when
4H is selected.
4X4 LOW Continuously illuminates when
4L is selected. CHECK 4X4 Displays when a 4X4 system
fault is present.
Note: When a 4X4 system fault is present,
the system typically remains in whichever
four-wheel drive mode was selected prior
to the fault condition occurring. It does not
necessarily default to 4X2. When this
warning is displayed, have your vehicle
serviced as soon as possible.
4WD Switch Selections 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.
Your 4X4 control is in one of the following
locations:
• On the instrument panel.
• On the drive mode selection switch.
Note: If your vehicle has AdvanceTrac®
with RSC®, the system automatically turns
off the stability enhancement feature when
you shift the four-wheel drive system into
4L - 4X4 LOW. You can manually turn the
system off by pressing the AdvanceTrac
button. See
Using Traction Control (page
223). This turns off the engine management
feature, allowing the vehicle to maintain full
power and enhanced momentum through
the obstacle. The brake traction
enhancement feature is still turned on.
Note: The AdvanceTrac system has the
ability to take over control of the transfer
case clutch and disable it during driving
maneuvers when necessary.
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(If Equipped)E181778 E181781 E181779 E181780

Note:
Four-wheel drive mode availability
is based on drive mode selection. See Drive
Control (page 271).
Note: The information display may show
messages during four-wheel drive operation.
See
Information Messages (page 129).
2H - 4X2
Delivers power to the rear wheels only. The
information display momentarily shows
2H when this mode is selected. This mode
is appropriate for normal on-road driving
on dry pavement and provides the best
fuel economy.
Note: This may turn on or off automatically
based on drive mode selection. See
Drive
Control (page 271).
4A - 4X4 AUTO
Provides electronic controlled four-wheel
drive with power delivered to the front and
rear wheels, as required, for increased
traction. When you select this mode, the
information display shows 4A. The system
continuously monitors road conditions,
driver input as well as other vehicle sensors
and optimizes the system's behavior based
on drive mode selection.
Note: On vehicles with a rotary drive mode
switch, 4A should remain on in Mud/Rut and
Sand but with aggressive tuning, which
provides electronically locked four-wheel
drive power to front and rear wheels, the
same as traditional 4H.
Note: This may turn on or off automatically
based on drive mode selection. See
Drive
Control (page 271). 4H - 4X4 HIGH
Provides electronically locked four-wheel
drive power to the front and rear wheels.
When you select this mode, the
information display shows 4H. This mode
is not recommended for use on dry
pavement. This mode is only intended for
severe winter or off-road conditions, such
as deep snow, ice or shallow sand.
Note:
This may turn on or off automatically
based on drive mode selection. In
configurations with a rotary drive mode
switch, 4H functionality is within the
Mud/Rut and Sand drive modes even when
the indicator lamp shows 4A. See
Drive
Control (page 271).
4L - 4X4 LOW
Provides electronically locked four-wheel
drive power to both the front and rear
wheels with additional gearing for
increased torque multiplication. Intended
only for off-road applications such as deep
sand, steep slopes, or pulling heavy
objects. Using 4L - 4X4 low does not
engage when your vehicle is moving above
3 mph (5 km/h)
. This is normal and is no
reason for concern.
Note: This may turn off automatically
based on drive mode selection. See
Drive
Control (page 271).
Shifting Between Four-Wheel Drive
System Modes
You can change between 2H to 4A or 4H
at a stop or when driving. The information
display may show a message indicating a
4X4 shift is in progress and the LED light
for the selected mode flashes. Once the
shift is complete, the information display
shows the system mode selected and the
LED light for the selected mode turns solid.
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(If Equipped)

Truck and utility vehicles can differ from
some other vehicles. Your vehicle may be
higher to allow it to travel over rough
terrain without getting hung up 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.
You should either know the terrain or
examine maps of the area before driving.
Map out your route before driving in the
area. To maintain steering and braking
control of your vehicle, you must have all
four wheels on the ground and they must
be rolling, not sliding or spinning.
Driving Off-Road With Truck and
Utility Vehicles
Four-wheel drive vehicles are specially
equipped for driving on sand, snow, mud
and rough terrain and have operating
characteristics that are different from
conventional vehicles, both on and off the
road.
The transfer case supples power to all four
wheels. On four-wheel drive vehicles, the
transfer case allows you to select different
four-wheel drive modes when necessary.
Four-wheel drive, when you select a 4X4
mode, uses all four wheels to power your
vehicle. This increases traction, enabling
you to drive over terrain and road
conditions that a conventional two-wheel
drive vehicle cannot.
Note:
On some models, the initial shift from
two-wheel drive to four-wheel drive when
your vehicle is moving can cause some
momentary clunk and ratcheting sounds.
This is the front drivetrain coming up to
speed and is not a cause for concern.
Note: Your vehicle may have a front air dam
that can become damaged, due to reduced
ground clearance, when taking your vehicle
off-road. You can remove this air dam by
removing the eight bolts that secure it.
Basic Operating Principles
• Drive slower in strong crosswinds which
can affect the normal steering
characteristics of your vehicle.
• Proceed with care when driving your
vehicle on surfaces made slippery by
loose sand, water, gravel, snow or ice.
• Do not use 4H or 4L on dry, hard
surfaced roads. Doing so can produce
excessive noise, increase tire wear and
may damage drive components. Use
4H or 4L modes only for consistently
slippery or loose surfaces.
If Your Vehicle leaves the Road
If your vehicle leaves the road, reduce your
vehicle speed and avoid severe braking.
When your vehicle speed decreases, ease
your vehicle back onto the road. Do not
turn the steering wheel sharply when
returning your vehicle to the road.
It may be safer to stay on the shoulder of
the road and slow down gradually before
returning to the road. You may lose control
if you do not slow down or if you turn the
steering wheel too sharply or abruptly.
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It may be less risky to strike small objects,
such as freeway reflectors, with minor
damage to your vehicle rather than
attempt a sudden return to the road which
could cause your vehicle to slide sideways
out of control or roll over. Remember, your
safety and the safety of others should be
your primary concern.
Emergency Maneuvers
In an unavoidable emergency where a
sudden sharp turn must be made,
remember to avoid over-driving your
vehicle, for example, turn the steering
wheel only as rapidly and as far as required
to avoid the emergency. Excessive steering
can result in loss of vehicle control. Apply
smooth pressure to the accelerator pedal
or brake pedal when changes in vehicle
speed are required. Avoid abrupt steering,
acceleration and braking. This could result
in an increased risk of vehicle roll over, loss
of vehicle control and personal injury. Use
all of the available road surface to bring
your vehicle to a safe direction of travel.
In the event of an emergency stop, avoid
skidding the tires and do not attempt any
sharp steering wheel movements.
If your vehicle goes from one type of
surface to another, such as, from concrete
to gravel, there is a change in the way your
vehicle responds to a maneuver, for
example, steering, acceleration or braking.
Sand
When driving over sand, try to keep all four
wheels on the most solid area of the trail.
Avoid reducing the tire pressures but shift
to a lower gear and drive steadily through
the terrain. Apply the accelerator slowly
and avoid excessive wheel slip.
When driving at slow speeds in deep sand
under high outside temperatures, use a low
gear when possible. Low gear operation
maximizes the engine and transmission
cooling capability.
Avoid driving at excessive speeds, this
causes vehicle momentum to work against
you and your vehicle could become stuck
to the point that assistance may be
required from another vehicle. Remember,
you may be able to back out the way you
came if you proceed with caution.
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 could
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 improves
by applying light pressure to the brake
pedal when slowly moving.
Note:
Driving through deep water could
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.
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