traction control FORD EXPEDITION 2018 Owners Manual

Auxiliary Power Points
Auxiliary Power Points
...............................170
Wireless Accessory Charging ....................
171
Storage Compartments
Center Console .............................................
174
Overhead Console .......................................
174
Starting and Stopping the Engine
General Information ....................................
175
Ignition Switch ..............................................
175
Keyless Starting ............................................
176
Starting a Gasoline Engine .......................
176
Engine Block Heater ...................................
179
Unique Driving Characteristics
Auto-Start-Stop ...........................................
181
Fuel and Refueling
Safety Precautions .....................................
184
Fuel Quality ...................................................
184
Fuel Filler Funnel Location .......................
185
Running Out of Fuel ...................................
185
Refueling .........................................................
187
Fuel Consumption ......................................
189
Engine Emission Control
Emission Law .................................................
191
Catalytic Converter .....................................
192
Transmission
Automatic Transmission ..........................
195
Four-Wheel Drive
Using Four-Wheel Drive ...........................
202Rear Axle
Limited Slip Differential
............................
210
Brakes
General Information ....................................
211
Hints on Driving With Anti-Lock Brakes ........................................................................\
..
211
Electric Parking Brake .................................
212
Hill Start Assist .............................................
213
Traction Control
Principle of Operation ................................
215
Using Traction Control ...............................
215
Stability Control
Principle of Operation ................................
216
Using Stability Control ...............................
217
Hill Descent Control
Principle of Operation ................................
219
Using Hill Descent Control .......................
219
Parking Aids
Principle of Operation ................................
221
Rear Parking Aid ..........................................
222
Front Parking Aid .........................................
222
Side Sensing System .................................
223
Active Park Assist .......................................
225
Rear View Camera .......................................
231
360 Degree Camera ..................................
234
Cruise Control
Principle of Operation ...............................
237
Using Cruise Control ..................................
237
Using Adaptive Cruise Control ..............
238
Driving Aids
Driver Alert .....................................................
245
Lane Keeping System ...............................
246
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•
Various vehicle speed reminders so you
know when your vehicle approaches
the limits. Warnings appear in the
information display and an audible
warning sounds when you exceed the
limit.
• Audio system maximum volume of
45%. A message will be shown in the
display when you attempt to exceed
the limited volume. Also, the
speed-sensitive or compensated
automatic volume control will be
disabled.
• Always on setting. When this is
selected, you will not be able to turn
off Advance Trac or traction control,
911 Assist or Emergency Assistance, or
Do Not Disturb (if your vehicle is
equipped with these features).
CREATING A MYKEY
Use the information display to create a
MyKey:
1. Insert the key you want to program into
the ignition. See Starting a Gasoline
Engine (page 176). If your vehicle is
equipped with a push-button start,
place the remote control into the
backup slot. See Passive Anti-Theft
System
(page 77).
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 111). 4. When prompted, hold the
OK button
until you see a message informing you
to label this key as a MyKey. The
programmed restrictions apply when
you key off, open and close the driver
door and restart your vehicle with the
programmed key or transmitter.
MyKey is successfully created. Make sure
you label it so you can distinguish it from
the admin keys.
You can also program configurable
settings for the key(s). See
Programming
and Changing Configurable Settings.
Programming and Changing
Configurable Settings
Use the information display to access your
configurable MyKey settings.
1. Switch the ignition on using an admin key or transmitter you want to program.
2. Access the main menu in the information display and then scroll
through the menus to change the
settings of your MyKey. See
Information Displays
(page 111).
3. Follow the instructions in the display.
Note: You can clear or change your MyKey
settings at any time during the same key
cycle as you created the MyKey. Once you
have switched the vehicle off, however, you
will need an admin key to change or clear
your MyKey settings.
CLEARING ALL MYKEYS
When you clear your MyKeys, you remove
all restrictions and return all MyKeys to
their original admin key status at once. To
clear all MyKeys of all MyKey settings, use
the information display.
1. Switch the ignition on using an admin key.
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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 malfunction. Have your vehicle
checked as soon as possible.
Note: The system automatically turns off
if there is a malfunction.
See Using Stability Control (page 217).
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 Chime
Sounds when you leave the key in the
ignition and the driver door open.
Headlamps On Warning Chime
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 Chime
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 Chime
Sounds when you leave the direction
indicator on after signaling a turn and
driving the vehicle more than 1.5 miles (2.4
km).
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Action
Message
The adaptive cruise has reinstated controls to the driver.
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 and you 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. Contactan authorized dealer as soon as possible.
Service AdvanceTrac
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
The status of the AdvanceTrac sport mode after you switched it on.
AdvanceTrac SPORT
MODE
The status of the traction control system after you switchedit off. See Using Traction Control (page 215).
Traction Control Off
The status of the traction control system after you switchedit on. See
Using Traction Control (page 215).
Traction Control On
Airbag Action
Message
Displays when the system detects a malfunction due to a blocked sensor.
Occupant Sensor
BLOCKED Remove
Objects Near Passenger Seat
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MyKey
Action
Message
You did not program a MyKey.
MyKey not Created
MyKey is active.
MyKey Active Drive
Safely
When switching on your vehicle and MyKey is in use, displaysthat the MyKey speed limit is on.
Speed Limited to XX
MPH/km/h
MyKey is in use and the MyKey speed limit is on and the vehiclespeed is approaching 81 mph (130 km/h).
Near Vehicle Top Speed
You have reached the speed limit set for your MyKey.
Vehicle at Top Speed of
MyKey Setting
You have an active MyKey with a programmed set speed limit.
Check Speed Drive
Safely
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 -
MyKey Setting
With a MyKey in use, park aid is always on.
MyKey Park Aid Cannot
be Deactivated
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-road modeentry has not been met.
For Hill Descent Reduce Speed
XX MPH/km/h or Less
You need to select a transmission gear for hill descentmode.
For Hill Descent Select Gear
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USING FOUR-WHEEL DRIVE (IF
EQUIPPED)
Note: For important information regarding
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. 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 4WD system does not perform a shift.
This is normal and should be no reason for
concern. Refer to Shifting to or from 4L for
proper operation.
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
4WD mode was selected prior to the fault
condition occurring. It does not default to
4X2 in all circumstances. When this warning
is displayed, have your vehicle serviced by
an authorized dealer.
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.
Note: If your vehicle is equipped with
AdvanceTrac® with RSC®, the system
automatically turns off the stability
enhancement feature when you shift the
4WD system into 4L - 4X4 LOW. You can
manually turn the system off by pressing
the AdvanceTrac button. See
Using
Traction Control (page 215). 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.
Note: 4WD mode availability is based on
Drive Mode selection.
See Drive Control
(page 261).
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Note:
The information display may show
messages during 4WD operation. See
Information Messages (page 123).
Your 4X4 control is located in one of the
following locations:
• On the instrument panel.
• On the
DRIVE MODE selection switch.
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: 2H may turn on or off automatically
based on Drive Mode selection. See
Drive
Control (page 261).
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: 4A may turn on or off automatically
based on Drive Mode selection. See
Drive
Control (page 261). 4H - 4X4 HIGH
Provides electronically locked four-wheel
drive power to 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:
4H 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/Ruts and Sand Drive Modes even when
the indicator lamp shows 4A. See
Drive
Control (page 261).
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 grades, or pulling heavy
objects. 4L - 4X4 low does not engage
when your vehicle is moving above
3 mph
(5 km/h); this is normal and should be no
reason for concern. Refer to Shifting to or
from 4L - 4X4 low for proper operation.
Note: 4L may turn off automatically based
on Drive Mode selection. See
Drive Control
(page 261).
Shifting Between 4WD System Modes
Note: Momentarily releasing the accelerator
pedal when a shift in progress message
displays improves engagement and
disengagement performance.
Note: Do not perform this operation if the
rear wheels are slipping.
Note: Some noise may be heard as the
system shifts or engages; this is normal.
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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.
Maintain steering wheel control at all
times, 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
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 the automatic locking hubs
engaging and is not 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 may remove this air dam by
removing eight bolts.
Four-wheel drive vehicles are specially
equipped for driving on sand, snow, mud
and rough terrain and have operating
characteristics that are somewhat
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
4WD modes when necessary. You can find
information on transfer case operation and
shifting procedures in this chapter. You can
find information on transfer case
maintenance in the Maintenance chapter.
You should become thoroughly familiar
with this information before you operate
your vehicle.
Four-wheel drive, when you select a 4WD
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.
Basic Operating Principles
•
Drive slower in strong crosswinds which
can affect the normal steering
characteristics of your vehicle.
• When driving your vehicle on surfaces
made slippery by loose sand, water,
gravel, snow or ice proceed with care.
• 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. 4H or
4L modes are 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 situation
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 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, for example, 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 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 improves
by applying light pressure to the brake
pedal when slowly moving.
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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 want to 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 can 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.
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.
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