2021 FORD EXPEDITION light

developed sufficient torque to prevent your
vehicle from rolling down the slope. This
is an advantage when pulling away on a
slope, for example from a car park ramp,
traffic lights or when reversing uphill into
a parking space.
The system activates on any slope that
causes your vehicle to roll.
Note:
There is no warning light to indicate
the system is either on or off.
Using Hill Start Assist
1. Press the brake pedal to bring your vehicle to a complete standstill. Keep
the brake pedal pressed and shift into
first gear when facing uphill or reverse
(R) when facing downhill.
2. If the sensors detect that your vehicle is on a slope, the system activates
automatically.
3. When you remove your foot from the brake pedal, your vehicle remains on
the slope without rolling away for
about two to three seconds. This hold
time automatically extends if you are
in the process of driving off.
4. Drive off in the normal manner. The system releases the brakes
automatically.
Note: When you remove your foot from the
brake pedal and press the pedal again when
the system is active, you will experience
significantly reduced brake pedal travel. This
is normal.
Switching the System On and Off
Vehicles with Automatic Transmission
You cannot turn the system on or off.
When you switch the ignition on, the
system automatically turns on.
222
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Brakes

PRINCIPLE OF OPERATION
The traction control system helps avoid
drive wheel spin and loss of traction.
If your vehicle begins to slide, the system
applies the brakes to individual wheels
and, when needed, reduces engine power
at the same time. If the wheels spin when
accelerating on slippery or loose surfaces,
the system reduces engine power in order
to increase traction.
USING TRACTION CONTROL
WARNING: The stability and
traction control light illuminates steadily
if the system detects a failure. Make sure
you did not manually disable the traction
control system using the information
display controls or the switch. If the
stability control and traction control light
is still illuminating steadily, have the
system serviced by an authorized dealer
immediately. Operating your vehicle with
the traction control disabled could lead
to an increased risk of loss of vehicle
control, vehicle rollover, personal injury
and death.
The system automatically turns on each
time you switch the ignition on.
If your vehicle is stuck in mud or snow,
switching traction control off may be
beneficial as this allows the wheels to spin.
Note: When you switch traction control off,
stability control remains fully active.
Switching the System Off When you switch the system off,
a message and an illuminated
icon appear on the instrument
cluster. Use the switch again to return the traction
control system to normal operation.
The switch for the stability and traction
control system is on the instrument panel.
Your vehicle may have MyKey restrictions
regarding this feature. See
Principle of
Operation (page 68).
System Indicator Lights and
Messages The stability and traction control
light temporarily illuminates on
engine start-up and flashes:
• When a driving condition activates
either of the systems.
• If a problem occurs in either of the
systems. The stability and traction control
off light temporarily illuminates
on engine start-up and stays on:
• When you switch the traction control
system off.
• When you select an alternative stability
control mode.
223
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Traction ControlE130458 E138639 E130458

PRINCIPLE OF OPERATION
WARNING: Vehicle modifications
involving braking system, aftermarket
roof racks, suspension, steering system,
tire construction and wheel and tire size
may change the handling characteristics
of your vehicle and may adversely affect
the performance of the electronic
stability control system. In addition,
installing any stereo loudspeakers may
interfere with and adversely affect the
electronic stability control system. Install
any aftermarket stereo loudspeaker as
far as possible from the front center
console, the tunnel, and the front seats
in order to minimize the risk of interfering
with the electronic stability control
sensors. Reducing the effectiveness of
the electronic stability control system
could lead to an increased risk of loss of
vehicle control, vehicle rollover, personal
injury and death. WARNING:
Remember that even
advanced technology cannot defy the
laws of physics. It’ s always possible to
lose control of a vehicle due to
inappropriate driver input for the
conditions. Aggressive driving on any
road condition can cause you to lose
control of your vehicle increasing the risk
of personal injury or property damage.
Activation of the electronic stability
control system is an indication that at
least some of the tires have exceeded
their ability to grip the road; this could
reduce the operator ’s ability to control
the vehicle potentially resulting in a loss
of vehicle control, vehicle rollover,
personal injury and death. If your
electronic stability control system
activates, SLOW DOWN.
The system automatically turns on each
time you switch the ignition on. If a fault occurs in either the stability
control or the traction control system, you
may experience the following conditions:
•
The stability and traction control light
illuminates steadily.
• The stability control and traction
control systems do not enhance your
vehicle's ability to maintain traction of
the wheels.
If a driving condition activates either the
stability control or the traction control
system you may experience the following
conditions:
• The stability and traction control light
flashes.
• Your vehicle slows down.
• Reduced engine power.
• A vibration in the brake pedal.
• The brake pedal is stiffer than usual.
• If the driving condition is severe and
your foot is not on the brake, the brake
pedal may move as the system applies
higher brake force.
The stability control system has several
features built into it to help you maintain
control of your vehicle:
Electronic Stability Control
The system enhances your vehicle ’s ability
to prevent skids or lateral slides by
applying brakes to one or more of the
wheels individually and, if necessary,
reducing engine power.
Roll Stability Control
The system enhances your vehicle ’s ability
to prevent rollovers by detecting your
vehicle ’s roll motion and the rate at which
it changes by applying the brakes to one
or more wheels individually.
224
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Stability Control

Traction Control
The system enhances your vehicle
’s ability
to maintain traction of the wheels by
detecting and controlling wheel spin. See
Using Traction Control (page 223). Vehicle without stability control
skidding off its intended route.
A
Vehicle with stability control
maintaining control on a slippery
surface.
B USING STABILITY CONTROL
Stability Control and Traction
Control with Roll Stability
Control
™ (RSC™)
The system automatically activates when
you start your engine. You can switch off
the electronic stability control and roll
stability control portions of the system
below
35 mph (56 km/h). When the
transmission is in reverse (R), they are
disabled. You can switch off the traction
control portion of the system
independently. See
Using Traction
Control (page 223). Stability Control and Traction Control with RSC Features
Traction
control system
Electronic
stabilitycontrol
Roll stability
control
Stability
control
OFF light
Button functions
Enabled
Enabled
Enabled
Illumin-
ated
during bulb
check
Default at start-up
Disabled 1
Enabled 1
Enabled
Illumin-
ated
Button pressed
momentarily
225
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Stability ControlE72903A
AA
B
BB
B

Stability Control and Traction Control with RSC Features
Disabled 4
Disabled
Disabled
Flashes
then illu- minated
solid 2
Button pressed and
held for more than 5 seconds at vehicle
speed under 35 mph
(56 km/h)
Disabled1
Enabled 1
Enabled
Illumin-
ated
Vehicle speed
exceeds
35 mph
(56 km/h) after
button is pressed and held for more than 5 seconds
Enabled
Enabled
Enabled
Not illu-
minated
Button pressed again
after deactivation
Disabled 4
Disabled
Disabled
Illumin-
ated
Button not pressed
and the transfer case is switched to 4X4
Low3
1 The traction control system may still be enabled but with higher entry thresholds
compared to the full system. The electronic stability control entry thresholds are higher
compared to the full system.
2 When you press and hold the button for more than 5 seconds the indicator lamp blinks
for three seconds.
3 Your vehicle may or may not have this feature available. When you select 4X4 Low the
stability control light illuminates and all stability control with RSC features are disabled.
4 Engine traction control and two-wheel spin brake traction control functions are disabled.
Single wheel spin traction control is always enabled.
226
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Stability Control

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 129).
227
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Hill Descent Control
(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).
242
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Parking AidsE190459

The cruise controls are on the steering
wheel. See Cruise Control (page 93).
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.
248
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Cruise ControlE262918 E265296 E144529 E255686 E255686 E265299