sensor FORD EXPEDITION 2019 Workshop Manual

Zone coverage also decreases when
parking at narrow angles. The sensor on
the left-hand side is mostly obstructed and
zone coverage on that side is severely
reduced.
System Lights, Messages and
Audible Alerts
When the system detects a vehicle, an
indicator illuminates in the exterior mirror
on the side the approaching vehicle is
coming from. A tone sounds and a
message appears in the information
display.
Note:
In exceptional conditions, the system
could alert you even when there is nothing
in the detection zone, for example a vehicle
passing in the distance.
Blocked Sensors The sensors are behind the rear bumper
on both sides of your vehicle. Note:
Keep the sensors free from snow, ice
and large accumulations of dirt.
Note: Do not cover the sensors with bumper
stickers, repair compound or other objects.
Note: Blocked sensors could affect system
performance.
If the sensors are blocked, a message may
appear in the information display when
you shift into reverse (R). See
Information Messages (page 125).
System Limitations
The system may not correctly operate
when any of the following occur:
• The sensors are blocked.
• Adjacently parked vehicles or objects
are obstructing the sensors.
• Vehicles approach at speeds greater
than
37 mph (60 km/h).
• The vehicle speed is greater than 7 mph
(12 km/h)
.
• You reverse out of an angled parking
space.
System Errors
If the system detects a fault a message
displays. See General Information (page
113
).
Switching the System Off and On
You can temporarily switch the system off
using the information display. See
General
Information (page 113). When you switch
system off, a message displays. See
Information Messages (page 125).
Note: The system turns on each time you
switch the ignition on and you shift into
reverse (R). If you temporarily switch the
system off, it turns on the next time you
switch the ignition on.
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•
If required, you can switch Active
Braking on or off.
• If required, you can switch the entire
Pre-Collision Assist feature on or off.
Note: Active braking automatically turns
on every time you switch the ignition on.
Note: We recommended that you switch
the system off if you install a snow plow or
similar object in such a way that it may
block the radar sensor. Your vehicle
remembers the setting across key cycles.
Blocked Sensors If a message regarding a blocked sensor
or camera appears in the information
display, the radar signals or camera images
are obstructed. The radar sensor is behind
a fascia cover near the driver side of the
lower grille. With an obstructed radar, the
Pre-Collision Assist system does not
function and cannot detect a vehicle
ahead. With the front camera obstructed,
the Pre-Collision Assist system does not
respond to pedestrians or stationary
vehicles and the system performance on
moving vehicles reduces. The following
table lists possible causes and actions for
when this message displays.
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Action
Cause
Clean the grille surface in front of the radaror remove the object causing the obstruc- tion.
The surface of the radar in the grille is dirty
or obstructed in some way.
Wait a short time. It may take several
minutes for the radar to detect that there is no obstruction.
The surface of the radar in the grille is clean
but the message remains in the display.
The Pre-Collision Assist system is tempor-arily disabled. Pre-Collision Assist should
automatically reactivate a short time after the weather conditions improve.
Heavy rain, spray, snow, or fog is interfering
with the radar signals.
The Pre-Collision Assist system is tempor-arily disabled. Pre-Collision Assist should
automatically reactivate a short time after the weather conditions improve.
Swirling water, or snow or ice on the surface
of the road may interfere with the radar signals.
Contact an authorized dealer to have theradar checked for proper coverage and operation.
Radar is out of alignment due to a front end
impact.
Clean the outside of the windshield in frontof the camera.
The windshield in front of the camera is
dirty or obstructed in some way.
Wait a short time. It may take several
minutes for the camera to detect that there is no obstruction.
The windshield in front of the camera is
clean but the message remains in the display.
Note: Proper system operation requires a
clear view of the road by the camera. Have
any windshield damage in the area of the
camera's field of view repaired.
Note: If something hits the front end of your
vehicle or damage occurs, the radar sensing
zone may change. This could cause missed
or false vehicle detections. Contact an
authorized dealer to have the radar checked
for proper coverage and operation. Note:
If your vehicle detects excessive heat
at the camera or a potential misalignment
condition, a message may display in the
information display indicating temporary
sensor unavailability. This message
deactivates automatically when operational
conditions are correct. For example, when
the ambient temperature around the sensor
decreases or the sensor automatically
recalibrates successfully.
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Protected Component
Fuse Rating
Fuse Number
Horn.
25A 1
1
Fan 1.
50A 2
2
Front wiper motor.
30A 2
3
Not used.
—
4
Starter relay.
30A 2
5
Power point 1.
20A 2
6
Power point 2.
20A 2
8
Rain sensor.
5A 1
10
Not used.
—
12
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Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
1
Driver seat switch.
7.5A 1
2
Driver door unlock.
20A 1
3
Trailer brake controller.
5A 1
4
Speaker amplifier.
20A 1
5
Not used (spare).
10A 2
6
Not used (spare).
10A 2
7
Not used.
—
8
Rear seat entertainment module.
10A 2
9
Head up display.
Wireless accessory charger module.
5A 2
10
Hands free liftgate module.
Power liftgate module.
Keypad.
5A 2
11
Combined sensor module.
Cluster.
7.5A 2
12
Electronic control panel.
Smart datalink connector logic.
Gear shift module.
7.5A 2
13
Steering column control module.
Extended power module.
10A 2
14
Brake switch.
Smart datalink connector power.
10A 2
15
Liftglass release.
15A 1
16
Telematics control unit - modem.
5A 2
17
Ignition switch.
5A 2
18
Key inhibit solenoid.
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Protected Component
Fuse Rating
Fuse or Relay
Number
Push button start switch.
Transmission control switch.
7.5A 2
19
Gearshift module.
Not used (spare).
7.5A 2
20
Humidity and in–car temperature sensor.
5A 2
21
Electrochromatic mirror.
5A 2
22
Second row heated seat module.
Moonroof logic.
10A 1
23
Inverter.
Power window switch.
Power mirror switch.
Central lock unlock
20A 1
24
Left front door zone module.
30A 1
25
Right front door zone module.
30A 1
26
Moonroof.
30A 1
27
Stereo amplifier.
20A 1
28
Left rear door zone module.
30A 1
29
Right rear door zone module.
30A 1
30
Adjustable pedals.
15A 1
31
SYNC
10A 1
32
Drive mode switch module.
4x4 switch.
Radio frequency transceiver module.
Rear heating, ventilation and air condi-
tioning control module.
Audio control module.
20A 1
33
Run/start relay.
30A 1
34
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WARNING: To reduce the
risk of serious injury, when
mounting replacement tires and
wheels, you should not exceed
the maximum pressure indicated
on the sidewall of the tire to set
the beads without additional
precautions listed below. If the
beads do not seat at the
maximum pressure indicated,
re-lubricate and try again. WARNING: When inflating
the tire for mounting pressures
up to
20 psi (1.38 bar) greater
than the maximum pressure on
the tire sidewall, the following
precautions must be taken to
protect the person mounting the
tire:
• Make sure that you have the
correct tire and wheel size.
• Lubricate the tire bead and
wheel bead seat area again.
• Stand at a minimum of
12 ft
(3.66 m) away from the wheel
and tire assembly.
• Use both eye and ear
protection. WARNING: For a mounting
pressure more than
20 psi
(1.38 bar) greater than the
maximum pressure, a Ford
dealer or other tire service
professional should do the
mounting. WARNING:
Always inflate
steel carcass tires with a remote
air fill with the person inflating
standing at a minimum of
12 ft
(3.66 m) away from the wheel
and tire assembly.
Important: Remember to replace
the wheel valve stems when the
road tires are replaced on your
vehicle.
The two front tires or two rear tires
should generally be replaced as a
pair, except if the vehicle is
equipped with four wheel drive.
Vehicles equipped with four wheel
drive should have all four tires
replaced simultaneously.
Unevenly worn tires, mismatched
makes, models or brands can be
different in size, resulting in
potential damage to the four
wheel drive system.
The tire pressure sensors mounted
in the wheels are not designed to
be used in aftermarket wheels.
The use of wheels or tires not
recommended by us may affect
the operation of your tire pressure
monitoring system.
If the tire pressure monitoring
system indicator is flashing, the
system is malfunctioning. Your
replacement tire might be
incompatible with your tire
pressure monitoring system, or
some component of the system
may be damaged.
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Tire Rotation
WARNING: If the tire label
shows different tire pressures for
the front and rear tires and the
vehicle has a tire pressure
monitoring system, then you
need to update the settings for
the system sensors. Always
perform the system reset
procedure after tire rotation. If
you do not reset the system, it
may not provide a low tire
pressure warning when
necessary.
Note: If your tires show uneven
wear ask an authorized dealer to
check for and correct any wheel
misalignment, tire imbalance or
mechanical problem involved
before tire rotation.
Note: Your vehicle may be
equipped with a dissimilar spare
wheel and tire assembly. A
dissimilar spare wheel and tire
assembly is defined as a spare
wheel and tire assembly that is
different in brand, size or
appearance from the road tires and
wheels. If you have a dissimilar
spare wheel and tire assembly it is
intended for temporary use only
and should not be used in a tire
rotation.
Note: After having your tires
rotated, inflation pressure must be
checked and adjusted to the
vehicle requirements. Rotating your tires at the
recommended interval (as
indicated in the Scheduled
Maintenance chapter) will help
your tires wear more evenly,
providing better tire performance
and longer tire life.
Rear-wheel drive vehicles and
four-wheel drive vehicles (front
tires at left of diagram)
Sometimes irregular tire wear can
be corrected by rotating the tires.
USING SNOW CHAINS
WARNING:
Snow tires must be
the same size, load index and speed
rating as those originally provided by
Ford. Use of any tire or wheel not
recommended by Ford can affect the
safety and performance of your vehicle,
which could result in an increased risk of
loss of control, vehicle rollover, personal
injury and death. Additionally, the use of
non-recommended tires and wheels can
cause steering, suspension, axle, transfer
case or power transfer unit failure.
Follow the Ford recommended tire
inflation pressure found on the Safety
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Compliance Certification Label (on the
door hinge pillar, door latch post or the
door edge that meets the door latch
post, next to the driver seat), or Tire
Label on the B-Pillar or the edge of the
driver door. Failure to follow the tire
pressure recommendations can cause
uneven treadwear patterns and
adversely affect the way your vehicle
handles.
Note: The suspension insulation and
bumpers will help prevent vehicle damage.
Do not remove these components from your
vehicle when using snow tires and chains.
The tires on your vehicle have all-weather
treads to provide traction in rain and snow.
However, in some climates, you may need
to use snow tires and cables. If you need
to use cables, it is recommended that steel
wheels (of the same size and
specifications) be used, as cables may chip
aluminum wheels.
Follow these guidelines when using snow
tires and chains:
• If possible, avoid fully loading your
vehicle.
• Use only cable type chains or chains
offered by Ford/Lincoln as an
accessory or equivalent. Other
conventional link type chains may
contact and cause damage to the
vehicle's wheel house and/or body.
• Do not install chains on the front tires
as this may interfere with suspension
components.
• Only certain snow cables or chains
have been approved by Ford/Lincoln
as safe for use on your vehicle with the
following tires: 265/70R17 and
275/65R18.
• You should install snow cables or
chains that have been rated as SAE
Class S. •
Install chains securely, verifying that
the chains do not touch any wiring,
brake lines, or fuel lines.
• Do not exceed 31 mph (50 km/h) or
less if recommended by the chain
manufacturer while using snow chains.
• Drive cautiously. If you hear the chains
rub or bang against your vehicle, stop
and retighten the chains. If this does
not work, remove the chains to prevent
damage to your vehicle.
• Remove the tire chains when they are
no longer needed. Do not use tire
chains on dry roads.
• Purchase chains or cables from a
manufacturer that clearly labels body
to tire dimension restrictions. The snow
chains or cables must be mounted in
pairs on the rear tires only.
If you have any questions regarding snow
chains or cables, please contact your
authorized dealer.
TIRE PRESSURE MONITORING
SYSTEM WARNING:
The tire pressure
monitoring system is not a substitute for
manually checking tire pressures. You
should periodically check tire pressures
using a pressure gauge. Failure to
correctly maintain tire pressures could
increase the risk of tire failure, loss of
control, vehicle rollover and personal
injury.
Note: You should only use tire sealants in
roadside emergencies as they could cause
damage to the tire pressure monitoring
system sensor.
Note: If the tire pressure monitoring system
sensor becomes damaged, it will not
function.
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Changing Tires With a Tire
Pressure Monitoring System
Note:
Each road tire is equipped with a tire
pressure sensor located inside the wheel
and tire assembly cavity. The pressure
sensor is attached to the valve stem. The
pressure sensor is covered by the tire and is
not visible unless the tire is removed. Take
care when changing the tire to avoid
damaging the sensor.
You should always have your tires serviced
by an authorized dealer.
Check the tire pressure periodically (at
least monthly) using an accurate tire
gauge. See When Inflating Your Tires in
this chapter.
Understanding Your Tire Pressure
Monitoring System The tire pressure monitoring system
measures pressure in your road tires and
sends the tire pressure readings to your
vehicle. You can view the tire pressure
readings through the information display.
See General Information (page 113). The
low tire pressure warning light will turn on
if the tire pressure is significantly low. Once
the light is illuminated, your tires are
under-inflated and need to be inflated to
the manufacturer
’s recommended tire
pressure. Even if the light turns on and a
short time later turns off, your tire pressure
still needs to be checked.
When Your Temporary Spare Tire is
Installed
When one of your road tires needs to be
replaced with the temporary spare, the
system will continue to identify an issue to
remind you that the damaged road wheel
and tire assembly needs to be repaired and
put back on your vehicle.
To restore the full function of the tire
pressure monitoring system, have the
damaged road wheel and tire assembly
repaired and remounted on your vehicle.
When You Believe Your System is Not
Operating Properly
The main function of the tire pressure
monitoring system is to warn you when
your tires need air. It can also warn you in
the event the system is no longer capable
of functioning as intended. See the
following chart for information concerning
your tire pressure monitoring system:
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