warning light FORD EXPEDITION 2020 Service Manual

PRINCIPLE OF OPERATION
WARNING: Hill descent control
cannot control descent in all surface
conditions and circumstances, such as
ice or extremely steep grades. Hill
descent control is a driver assist system
and cannot substitute for good judgment
by the driver. Failure to do so may result
in loss of vehicle control, crash or serious
injury.
Hill descent control allows you to set and
maintain vehicle speed when descending
steep grades in various surface conditions.
Hill descent control can maintain vehicle
speeds on downhill grades between
0 mph
(3 km/h) and 20 mph (32 km/h). Above
20 mph (32 km/h), the system remains
armed, but you cannot use the system to
set or maintain the descent speed.
Hill descent control requires a cooling
down interval after a period of sustained
use. The amount of time that the feature
can remain active before cooling varies
with conditions. The system provides a
warning in the message center and a tone
sounds when the system is about to
disengage for cooling. At this time,
manually apply the brakes as needed to
maintain descent speed.
USING HILL DESCENT
CONTROL Press and release the hill
descent button on the
instrument panel. The button
illuminates and a chime sounds when you
switch this feature on. To increase descent speed, press the
accelerator pedal until you reach the
desired speed. To decrease descent
speed, press the brake pedal until you
reach the desired speed.
Whether accelerating or decelerating, once
you reach the desired descent speed,
remove your feet from the pedals and hill
descent control maintains the chosen
vehicle speed.
Note:
You may observe noise from the ABS
pump motor during hill descent control
operation. This is a normal characteristic of
the ABS and should be no reason for
concern.
Hill Descent Modes
• At speeds between
2 mph (3 km/h)
and 20 mph (32 km/h): When you
press this button, the light flashes
indicating this feature is active. Your
vehicle maintains the speed you desire
while in this mode.
• At speeds between
20 mph (32 km/h)
and 40 mph (64 km/h): When you
press this button, the light is solid and
a message appears in the information
display indicating this feature is active.
Your vehicle does not maintain the
speed you desire and you cannot set
your descent speed.
• At speeds above
40 mph (64 km/h):
When you press this button, the system
turns this feature off and no light or
message appears in the information
display. You need to switch this feature
back on to use.
Refer to Information Displays for hill
descent control messages. See
Information Messages
(page 123).
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(If Equipped)

Active guidelines are only shown with fixed
guidelines. To use active guidelines, turn
the steering wheel to point the guidelines
toward an intended path. If you change
the steering wheel position while reversing,
your vehicle might deviate from the original
intended path.
The fixed and active guidelines fade in and
out depending on the steering wheel
position. The active guidelines do not
display when the steering wheel position
is straight.
Always use caution while reversing.
Objects in the red zone are closest to your
vehicle and objects in the green zone are
farther away. Objects are getting closer to
your vehicle as they move from the green
zone to the yellow or red zones. Use the
side view mirrors and rear view mirror to
get better coverage on both sides and rear
of the vehicle.
Obstacle Distance Indicator (If
Equipped) The system will provide an image of your
vehicle and the sensor zones. The zones
will highlight green, yellow and red when
the parking aid sensors detect an object in
the coverage area.
Manual Zoom
WARNING:
When manual zoom is
on, the full area behind your vehicle may
not show. Be aware of your surroundings
when using the manual zoom feature.
Note: Manual zoom is only available when
the transmission is in reverse (R).
Note: When you enable manual zoom, only
the centerline is shown.
Selectable settings for this feature are
Zoom in (+) and Zoom out (-). Press the
symbol in the camera screen to change the
view. The default setting is Zoom OFF.
This allows you to get a closer view of an
object behind your vehicle. The zoomed
image keeps the bumper in the image to
provide a reference. The zoom is only
active while the transmission is in reverse
(R).
Rear Camera Delay
Selectable settings for this feature are ON
and OFF.
The default setting for the rear camera
delay is OFF.
When shifting the transmission out of
reverse (R) and into any gear other than
park (P), the camera image remains in the
display until:
• Your vehicle speed reaches
approximately
6 mph (10 km/h).
• You shift your vehicle into park (P).
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The cruise controls are on the steering
wheel. See Cruise Control (page 89).
Switching Adaptive Cruise Control
On Press and release the button.
The indicator, current gap setting
and set speed appear in the
information display.
Setting the Adaptive Cruise Speed
Drive to your preferred speed.
Press and release the button.
Take your foot off the accelerator pedal.
The indicator, current gap setting and set
speed appear in the information display. A vehicle graphic illuminates if there is a
vehicle detected in front of you.
Note:
When adaptive cruise control is
active, the speedometer may vary slightly
from the set speed displayed in the
information display.
Setting the Adaptive Cruise Speed
When Your Vehicle is Stationary
Follow a vehicle to a complete stop. Press while keeping the brake
pedal fully pressed.
The set speed adjusts to
20 mph
(30 km/h).
The indicator, current gap setting and set
speed appear in the information display.
Following a Vehicle WARNING:
When following a
vehicle that is braking, your vehicle does
not always decelerate quickly enough to
avoid a crash without driver intervention.
Apply the brakes when necessary. Failure
to follow this instruction could result in
personal injury or death.
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Adaptive Cruise Control Gap Settings
Dynamic
Behavior
Distance Gap
Graphic
Display,
Bars Indic- ated
Between Vehicles
Sport.
Closest.
1
Normal.
Close.
2
Normal.
Medium.
3
Comfort.
Far.
4
Each time you switch the system on, it
selects the last chosen gap setting.
Overriding the Set Speed WARNING: If you override the
system by pressing the accelerator
pedal, it does not automatically apply
the brakes to maintain a gap from any
vehicle ahead.
When you press the accelerator pedal, you
override the set speed and gap distance. Use the accelerator pedal
normally to intentionally exceed
the set speed limit.
When you override the system, the green
indicator light illuminates and the vehicle
image does not appear in the information
display.
The system resumes operation when you
release the accelerator pedal. The vehicle
speed decreases to the set speed, or a
lower speed if following a slower vehicle.
Changing the Set Speed Press and release to increase the
set speed in small increments. Press and release to decrease
the set speed in small
increments.
Press and hold either button to change the
set speed in large increments. Release the
button when you reach your preferred
speed.
Press the accelerator or brake pedal until
you reach your preferred speed. Press
either button.
The system may apply the brakes to slow
the vehicle to the new set speed. The set
speed displays continuously in the
information display when the system is
active.
Canceling the Set Speed Press and release the button or
tap the brake pedal.
Note: The system remembers the set
speed.
Resuming the Set Speed Press and release the button.
Your vehicle speed returns to the
previously set speed and gap setting. The
set speed displays continuously in the
information display when the system is
active.
Note: Only use resume if you are aware of
the set speed and intend to return to it.
Automatic Cancellation
Automatic cancellation can also occur
when:
• The tires lose traction.
• You apply the parking brake.
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Possible Causes and Actions for This Message Displaying:
Action
Cause
Clean the grille surface in front of the radar
or remove the object causing the obstruc-
tion.
The surface of the radar is dirty or
obstructed.
Wait a short time. It may take several
minutes for the radar to detect that it is free
from obstruction.
The surface of the radar is clean but the
message remains in the display.
Do not use the system in these conditions
because it may not detect any vehicles
ahead.
Heavy rain or snow is interfering with the
radar signals.
Do not use the system in these conditions
because it may not detect any vehicles
ahead.
Water, snow or ice on the surface of the
road may interfere with the radar signals.
Wait a short time or switch to normal cruise
control.
You are in a desert or remote area with no
other vehicles and no roadside objects.
Due to the nature of radar technology, it is possible to get a blockage warning with no
actual block. A false blocked condition either self clears, or clears after you restart your
vehicle.
Switching to Normal Cruise
Control WARNING: Normal cruise control
will not brake when your vehicle is
approaching slower vehicles. Always be
aware of which mode you have selected
and apply the brakes when necessary. The cruise control indicator light
replaces the adaptive cruise
control indicator light if you
select normal cruise control. The gap
setting does not display, and the system
does not respond to lead vehicles.
Automatic braking remains active to
maintain set speed. You can change from adaptive cruise
control to normal cruise control through
the information display.
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The warning system is in two stages. At
first the system issues a temporary warning
that you need to take a rest. This message
will only appear for a short time. If the
system detects further reduction in driving
alertness, another warning may be issued
which will remain in the information display
for a longer time. Press OK on the steering
wheel control to clear the warning. When
active the system will run automatically in
the background and only issue a warning
if required.
Resetting the System
You can reset the system by either:
•
Switching the ignition off and on.
• Stopping your vehicle and then opening
and closing the driver ’s door.
LANE KEEPING SYSTEM WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death. WARNING: Always drive with due
care and attention when using and
operating the controls and features on
your vehicle. WARNING:
In cold and severe
weather conditions the system may not
function. Rain, snow and spray can all
limit sensor performance. WARNING:
The system will not
operate if the sensor cannot track the
road lane markings. WARNING:
The sensor may
incorrectly track lane markings as other
structures or objects. This can result in
a false or missed warning. WARNING:
The system may not
operate properly if the sensor is blocked.
Keep the windshield free from
obstruction. WARNING:
If damage occurs in the
immediate area surrounding the sensor,
have your vehicle checked as soon as
possible. WARNING:
The system may not
correctly operate if your vehicle is fitted
with a suspension kit not approved by
us.
Note: The system works above
40 mph
(64 km/h).
Note: The system works as long as the
camera can detect one lane marking.
Note: When you select aid or alert and aid
mode and the system detects no steering
activity for a short period, the system alerts
you to put your hands on the steering wheel.
The system may detect a light grip or touch
on the steering wheel as hands off driving.
Note: The system may not function if the
camera is blocked, or if the windshield is
damaged or dirty.
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•
The road has no or poor lane markings
in the camera field-of-view.
• The camera is obscured or unable to
detect the lane markings due to
environmental, traffic or vehicle
conditions. For example, significant sun
angles, shadows, snow, heavy rain or
fog, following a large vehicle that is
blocking or shadowing the lane or poor
headlamp illumination. See Troubleshooting for additional
information.
Green: Indicates that the system is
available or ready to provide a warning or
intervention, on the indicated side.
Yellow: Indicates that the system is
providing or has just provided a lane
keeping aid intervention.
Red: Indicates that the system is providing
or has just provided a lane keeping alert
warning.
Troubleshooting Why is the feature not available (line markings are gray) when I can see the lane markings
on the road?
Your vehicle speed is outside the operational range of the feature.
The sun is shining directly into the camera lens.
A quick intentional lane change has occurred.
Your vehicle stays too close to the lane markings.
Driving at high speeds in curves.
The last alert warning or aid intervention occurred a short time ago.
Ambiguous lane markings, for example in construction zones.
Rapid transition from light to dark, or from dark to light.
Sudden offset in lane markings.
ABS or AdvanceTrac ™ is active.
There is a camera blockage due to dirt, grime, fog, frost or water on the windshield.
You are driving too close to the vehicle in front of you.
Transitioning between no lane markings to lane markings or vice versa.
There is standing water on the road.
Faint lane markings, for example partial yellow lane markings on concrete roads.
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•
Is the width less than 9 ft (2.7 m) and
length less than 33 ft (10.1 m)?
If no, the system turns off.
If yes, the menu goes to the next screen.
• Trailer width measurement:
The width of the trailer is measured at the
front of the trailer. It is not measured at the
widest point of the trailer. The maximum
width at the front of the trailer that the
system can support is
8.5 ft (2.6 m).
Note: You do not need to enter an exact
trailer width measurement. You only need
to confirm that the width of the trailer is
8.5 ft (2.6 m)
or less.
• Trailer length measurement:
The trailer length is the distance between
the trailer hitch ball and the rear of the
trailer. The maximum length that the
system can support is
33 ft (10.1 m).
• Enter length of trailer:
The default setting is
18 ft (5.5 m).
Toggling up or down using the menu
buttons increases or decreases the
measurement by
3 ft (1 m). Select a length
that is equal to or within 3 ft (1 m) of the
actual measured length. For example, if
the actual measured length is 25 ft (7.6 m),
toggle the length in the menu to
27 ft
(8.2 m). When you enter the length of the
trailer, the system setup is saved.
Note: If the trailer is actually a bike rack or
cargo rack with electrical lighting, enter a
length of
3 ft (1 m). Cross Traffic Alert
remains on for trailers with a length of 3 ft
(1 m) or less.
Note: Proper measurement and
measurement entry is required for the
system to function as designed. System Operation
When you connect a trailer to your vehicle,
the trailer set up menu appears in the
information display. This menu allows you
to set up a new trailer or choose from a
previously set up trailer. A warning
message appears and the system turns off
if you do not choose or add a new trailer.
Note:
The warning message may not
appear until your vehicle speed reaches
22 mph (35 km/h)
.
If you select a trailer in the information
display before connecting a trailer to your
vehicle, the system loads the configuration
for the selected trailer. When a trailer is
connected, a warning message appears.
Note: A second warning message may
appear stating that the Cross Traffic Alert
system has turned off. The Blind Spot
Information System with Trailer Tow
continues to function normally in this
situation.
Note: The system remembers the last
selected trailer set up when you start your
vehicle.
Trailer Considerations
The system is designed to work with a
trailer with a front width of
8.5 ft (2.6 m)
or less, and a total length from the trailer
hitch ball to the rear of the trailer of
33 ft
(10.1 m) or less.
Some trailers may cause a slight change
in system performance:
• Large box trailers may cause false
alerts to occur when driving next to
infrastructures or near parked cars. A
false alert may also occur while making
a 90-degree turn.
• Trailers that have a width greater than
8.5 ft (2.6 m)
at the front and have a
total length greater than 20 ft (6 m)
may cause delayed alerts when a
vehicle is passing at high speed.
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Extreme continuous steering may increase
the effort required for you to steer your
vehicle, this increased effort prevents
overheating and permanent damage to
the steering system. You do not lose the
ability to steer your vehicle manually.
Typical steering and driving maneuvers
allow the system to cool and return to
normal operation.
Steering Tips
If the steering wanders or pulls, check for:
•
Correct tire pressures.
• Uneven tire wear.
• Loose or worn suspension
components.
• Loose or worn steering components.
• Improper vehicle alignment.
Note: A high crown in the road or high
crosswinds may also make the steering
seem to wander or pull.
Adaptive Learning (If Equipped)
The electronic power steering system
adaptive learning helps correct road
irregularities and improves overall handling
and steering feel. It communicates with
the brake system to help operate
advanced stability control and accident
avoidance systems. Additionally, whenever
the battery is disconnected or a new
battery installed, you must drive your
vehicle a short distance before the system
relearns the strategy and reactivates all
systems. PRE-COLLISION ASSIST WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death. WARNING:
The system does not
detect vehicles that are driving in a
different direction, pedestrians at night,
cyclists or animals. Apply the brakes
when necessary. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death. WARNING:
The system does not
operate during hard acceleration or
steering. Failure to take care may lead
to a crash or personal injury. WARNING: The system may fail or
operate with reduced function during
cold and severe weather conditions.
Snow, ice, rain, spray and fog can
adversely affect the system. Keep the
front camera and radar free of snow and
ice. Failure to take care may result in the
loss of control of your vehicle, serious
personal injury or death. WARNING:
Some situations and
objects prevent hazard detection. For
example low or direct sunlight, inclement
weather, unconventional vehicle types,
and pedestrians. Apply the brakes when
necessary. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death.
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WARNING: The system cannot
help prevent all crashes. Do not rely on
this system to replace driver judgment
and the need to maintain a safe distance
and speed.
Using the Pre-Collision Assist
System
The pre-collision assist system is active at
speeds above approximately
3 mph
(5 km/h) and pedestrian detection is active
at speeds up to
50 mph (80 km/h). If your vehicle is rapidly approaching
another stationary vehicle, a vehicle
traveling in the same direction as yours, or
a pedestrian within your driving path, the
system is designed to provide three levels
of functionality:
1. Alert
2. Brake Support
3. Active Braking
Alert
: When active, a flashing visual
warning appears and an audible warning
tone sounds.
Brake Support
: The system is designed
to help reduce the impact speed by
preparing the brakes for rapid braking.
Brake support does not automatically
apply the brakes. If you press the brake
pedal, the system could apply additional
braking up to maximum braking force, even
if you lightly press the brake pedal.
Active Braking
: Active braking may
activate if the system determines that a
collision is imminent. The system may help
the driver reduce impact damage or avoid
the crash completely. Note:
Brake support and active braking are
active at speeds up to
75 mph (120 km/h).
If the vehicle has a radar sensor or adaptive
cruise control, then brake support and active
braking are active up to the maximum speed
of the vehicle.
Note: If you perceive pre-collision assist
alerts as being too frequent or disturbing,
then you can reduce the alert sensitivity,
though the manufacturer recommends
using the highest sensitivity setting where
possible. Setting lower sensitivity leads to
fewer and later system warnings.
Note: The system disables when you select
4x4 low, sand mode, mud/ruts mode or
when you manually disable AdvanceTrac ™.
Distance Indication and Alert
(If
Equipped)
This is a function that provides you with a
graphical indication of the time gap to
other preceding vehicles traveling in the
same direction. The distance indication
and alert screen in the information display
shows one of the following graphics.
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