2017 FORD EXPEDITION sensor

PRINCIPLE OF OPERATION
WARNINGS
To help avoid personal injury, please
read and understand the limitations
of the system as contained in this
section. Sensing is only an aid for some
(generally large and fixed) objects when
moving on a flat surface at parking speeds.
Certain objects with surfaces that absorb
ultrasonic waves, surrounding vehicle's
parking aid systems, traffic control
systems, fluorescent lamps, inclement
weather, air brakes, and external motors
and fans may also affect the function of
the sensing system; this may include
reduced performance or a false activation. To help avoid personal injury, always
use caution when in reverse (R) and
when using the sensing system.
This system is not designed to
prevent contact with small or moving
objects. The system is designed to
provide a warning to assist the driver in
detecting large stationary objects to avoid
damaging your vehicle. The system may
not detect smaller objects, particularly
those close to the ground. Certain add-on devices such as large
trailer hitches, bike or surfboard racks
and any device that may block the
normal detection zone of the system, may
create false beeps. Note:
Keep the sensors, located on the
bumper or fascia, free from snow, ice and
large accumulations of dirt. If the sensors
are covered, the system ’s accuracy can be
affected. Do not clean the sensors with
sharp objects.
Note: If your vehicle sustains damage to
the bumper or fascia, leaving it misaligned
or bent, the sensing zone may be altered
causing inaccurate measurement of
obstacles or false alarms. Note:
The sensing system cannot be turned
off when a MyKey is present. See Principle
of Operation (page 47).
Note: If you attach certain add-on devices
such as a trailer or bike rack, the rear sensing
system may detect that add-on device and
therefore provide warnings. It is suggested
that you disable the rear sensing system
when you attach an add-on device to your
vehicle to prevent these warnings.
The sensing system warns the driver of
obstacles within a certain range of your
vehicle. The system turns on automatically
whenever you switch the ignition on. You can turn the system on or
off by pressing the parking aid
button. If your vehicle does not
have a parking aid button, the system can
be switched off through the information
display menu or from the pop-up message
that appears once you shift the
transmission into reverse (R). See General
Information
(page 91).
If a fault is present in the system, a warning
message appears in the information
display. See
Information Messages
(page 102).
REAR PARKING AID
(If Equipped)
The rear sensors are only active when the
transmission is in reverse (R). As your
vehicle moves closer to the obstacle, the
rate of the audible warning increases.
When the obstacle is less than
12 in
(30 cm) away, the warning sounds
continuously. If the system detects a
stationary or receding object farther than
12 in (30 cm)
from the corners of the
bumper, the tone sounds for only three
seconds. Once the system detects an
object approaching, the warning sounds
again.
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Coverage area of up to 6 ft (1.8 m) from
the rear bumper. There may be decreased
coverage area at the outer corners of the
bumper.
The system detects certain objects while
the transmission is in reverse (R) :
• Your vehicle is moving toward a
stationary object at a speed of
3 mph
(5 km/h) or less.
• Your vehicle is not moving, but a
moving object is approaching the rear
of your vehicle at a speed of
3 mph
(5 km/h) or less.
• Your vehicle is moving at a speed of
less than 3 mph (5 km/h) and a moving
object is approaching the rear of your
vehicle at a speed of less than
3 mph
(5 km/h).
The system provides audio warnings only
when your vehicle is moving or when your
vehicle is stationary and the detected
obstacle is less than
12 in (30 cm) away
from the bumper. Obstacle Distance Indicator
(If
Equipped)
The system provides obstacle distance
indication through the information display.
The distance indicator displays when the
transmission is in reverse (R).
The indicator displays:
• As the distance to the obstacle
decreases the indicator blocks
illuminate and move towards the
vehicle icon.
• If there is no obstacle detected, the
distance indicator blocks are grayed
out.
FRONT PARKING AID
(If Equipped)
The front parking aid sensors automatically
turn on when you shift into reverse (R) or
a forward gear.
The front sensors are active when the
transmission is in any position other than
park (P) and the vehicle speed is below
7 mph (12 km/h)
. Coverage area of up to
28 in (70 cm) from
the front bumper. There is decreased
coverage area at the outer corners.
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The system sounds an audible warning
when obstacles are near either bumper in
the following manner:
•
Objects detected by the front sensors
are indicated by a high-pitched tone
from the front of the vehicle.
• Objects detected by the rear sensors
are indicated by a lower pitched tone
from the rear of the vehicle.
• The sensing system reports the
obstacle which is closest to the front
or rear of the vehicle. For example, if
an obstacle is 12 in (30 cm) from the
front of the vehicle and, at the same
time, an obstacle is only
6 in (15 cm)
from the rear of the vehicle, the lower
pitched tone sounds.
• An alternating warning sounds from
the front and rear if there are objects
at both bumpers that are closer than
12 in (30 cm)
.
The system provides warnings when your
vehicle is moving or when your vehicle is
stationary and the detected obstacle is
less than
12 in (30 cm) away from the
bumper.
REAR VIEW CAMERA WARNINGS
The rear view camera system is a
reverse aid supplement device that
still requires the driver to use it in
conjunction with the interior and exterior
mirrors for maximum coverage. Objects that are close to either
corner of the bumper or under the
bumper, might not be seen on the
screen due to the limited coverage of the
camera system. Back up as slow as possible since
higher speeds might limit your
reaction time to stop your vehicle. WARNINGS
Use caution when using the rear
video camera and the luggage
compartment door is ajar. If the
luggage compartment door is ajar, the
camera will be out of position and the
video image may be incorrect. All
guidelines disappear when the luggage
compartment door is ajar. Use caution when turning camera
features on or off. Make sure your
vehicle is not moving.
The rear view camera system provides a
video image of the area behind your
vehicle.
During operation, lines appear in the
display which represent your vehicle
’s path
and proximity to objects behind your
vehicle. The camera is located on the luggage
compartment door.
Using the Rear View Camera
System
The rear view camera system displays
what is behind your vehicle when you place
the transmission in reverse (R).
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BLIND SPOT INFORMATION
SYSTEM
WARNING
Never use the Blind Spot
Information System as a
replacement for using the interior
and exterior mirrors or looking over your
shoulder before changing lanes. The Blind
Spot Information System is not a
replacement for careful driving. The Blind Spot Information System is
designed to aid you in detecting vehicles
that may have entered the blind spot zone
(A). The detection area is on both sides of
your vehicle, extending rearward from the
exterior mirrors to approximately
10 ft
(3 m) beyond the bumper. The system is
designed to alert you if certain vehicles
enter the blind spot zone while driving.
Cross Traffic Alert warns the driver of
vehicles approaching from the sides when
the transmission is in reverse (R). Note:
The Blind Spot Information System
does not prevent contact with other vehicles
or objects; nor detect parked vehicles,
people, animals or infrastructure (fences,
guardrails, trees). It’ s only designed to alert
you to vehicles in the blind spot zones.
Note: When a vehicle passes quickly
through the blind spot zone, typically fewer
than two seconds, the system does not
trigger.
Using the System
The Blind Spot Information System turns
on when you start the engine and you drive
your vehicle forward above
3 mph
(5 km/h). It remains on while the
transmission is in drive (D) or neutral (N).
If shifted out of drive (D) or neutral (N),
the system enters Cross Traffic Alert mode.
Once shifted back into drive (D), the Blind
Spot Information System turns back on
when the vehicle is driven above
3 mph
(5 km/h).
Note: The Blind Spot Information System
does not function in reverse (R) or park (P)
or provide any additional warning when a
turn signal is on.
Cross Traffic Alert detects approaching
vehicles from up to
46 ft (14 m) away
though coverage decreases when the
sensors are blocked. Reversing slowly
helps increase the coverage area and
effectiveness. WARNING
Never
use the Cross Traffic Alert
system as a replacement for using
the interior and exterior mirrors and
looking over your shoulder before backing
out of a parking space. Cross Traffic Alert
is not a replacement for careful driving. In this first example, the left sensor is only
partially obstructed; zone coverage to the
right is nearly maximized.
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A
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Zone coverage also decreases when
parking at shallow angles. Here, the left
sensor is mostly obstructed; zone coverage
on that side is severely limited.
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System Lights and Messages
The Blind Spot Information and Cross
Traffic Alert systems illuminate an amber
alert indicator in the outside mirror on the
side of your vehicle the approaching
vehicle is coming from.
The alert indicator dims when the system
detects nighttime darkness.
Cross Traffic Alert sounds also sounds an
audible alarm and a message appears in
the information display indicating a vehicle
is coming from the right or left. Cross
Traffic Alert works with the reverse sensing
system which sounds its own audible
alarm. See Rear Parking Aid (page 182).
System Sensor Blockage
WARNING
Never use the Blind Spot
Information System as a
replacement for using the interior
and exterior mirrors or looking over your
shoulder before changing lanes. The Blind
Spot Information System is not a
replacement for careful driving. Note:
It is possible to get a blockage
warning with no blockage present; this is
rare and known as a false blockage warning.
A false blocked condition either
self-corrects or clears after a key cycle. The system uses radar sensors which are
located behind the bumper fascia on each
side of your vehicle. Do not allow these
areas to become obstructed by mud, snow
or bumper stickers, as this can cause
degraded system performance.
If the system detects a degraded
performance condition, a blocked sensor
warning or low visibility warning will appear
in the information display and the alert
indicator illuminates in the appropriate
mirror(s). The information display warning
can be cleared but the alert indicator
remains illuminated.
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When the blockage is removed, the system
can be reset in two ways: 1) when at least
two objects are detected while driving, or
2) turn the ignition key from on to off, then
back on. If the blockage is still present after
the key cycle, the system senses again that
it is blocked after driving in traffic.Reasons for messages being displayed
Clean the fascia area in front of the radaror remove the obstruction.
The radar surface is dirty or obstructed
Drive normally in traffic for a few minutesto allow the radar to detect passing
vehicles so it can clear the blocked state.
The radar surface is not dirty or obstructed
No action required. The system automatic-ally resets to an unblocked state once the rainfall/snowfall rate decreases or stops. Do not use the Blind Spot InformationSystem or Cross Traffic Alert in these conditions.
Heavy rainfall/snowfall interferes with the
radar signals
System Limitations
The Blind Spot Information and Cross
Traffic Alert systems do have their
limitations; situations such as severe
weather conditions or debris build-up on
the sensor area may limit vehicle detection.
The following are other situations that may
limit the Blind Spot Information System:
• Certain maneuvering of vehicles
entering and exiting the blind zone.
• Vehicles passing through the blind zone
at very fast rates.
• When several vehicles forming a
convoy pass through the blind zone.
The following are other situations that may
limit the Cross Traffic Alert:
• Adjacently parked vehicles or objects
obstructing the sensors.
• Approaching vehicles passing at
speeds greater than 15 mph (24 km/h).
• Driving in reverse faster than
3 mph
(5 km/h).
• Backing out of an angled parking spot. False Alerts
Note:
If you connected a trailer to your
vehicle, the Blind Spot Information System
may detect the trailer causing a false alert.
To avoid false alerts you may want to turn
the system off manually.
There may be certain instances when
either the Blind Spot Information or Cross
Traffic Alert systems illuminate the alert
indicator with no vehicle in the coverage
zone; this is known as a false alert. Some
amount of false alerts are normal; they are
temporary and self-correct.
System Errors
If the system senses a problem with the
left or right sensor, the telltale will
illuminate and a message will appear in
the information display. See Information
Messages
(page 102).
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Protected components
Fuse amp rating
Fuse or relay number
Electronic cooling fan.
Relay
6
Rear window defroster.
Relay
7
Heated mirror relay.
Electronic cooling fan.
Relay
8
Run/start relay.
Relay
9
Power distribution box relay.
Relay
10
Power running boards.
40A*
11
Heated seats.
Run/start relay.
40A*
12
Starter relay.
30A*
13
Electronic cooling fan.
50A*
14
Not used.
—
15
Electronic fan.
50A*
16
Not used.
—
17
Trailer brake.
30A*
18
Power point (console).
20A*
19
4x4 module HAT 2.
20A*
20
Trailer tow module.
30A*
21
Passenger power seat.
30A*
22
Air conditioner clutch relay.
Relay
23
Trailer tow park lamp relay.
Relay
24
Not used.
—
25
ALT sensor.
10A**
26
4x4 module HAT 1.
20A**
27
Trailer tow park lamp relay.
25A**
28
Integrated wheel end solenoid.
10A**
29
Air conditioner clutch relay.
10A**
30
Trailer tow back up lamp.
15A**
31
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