sensor FORD EXPLORER 2021 Workshop Manual

Note:
Brake Support and Active Braking are
active at speeds up to 75 mph (120 km/h).
If your vehicle has a radar sensor included
with 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 would
lead to fewer and later system warnings.
Note: Pre-Collision Assist turns off when
you manually disable AdvanceTrac or when
you select deep snow/sand mode.
Distance Indication and Alert
(If
Equipped)
Distance Indication and Alert is a function
that provides the driver with a graphical
indication of the time gap to other
preceding vehicles traveling in the same
direction. Distance Indication and Alert
shows one of the graphics that follow in
the information display. If the time gap to a preceding vehicle is
small, a red visual indication displays to
the driver.
Note:
Distance Indication and Alert
deactivates and the graphics do not display
when Adaptive Cruise Control is active. Time Gap
Distance Gap
Graphics
Sensitivity
Speed
>0.9sec
>
82 ft (25 m)
Grey
Normal
62 mph
(100 km/h)
0.6sec —0.9sec
56–82 ft
(17 –25 m)
Yellow
Normal
62 mph
(100 km/h)
<0.6sec
<
56 ft (17 m)
Red
Normal
62 mph
(100 km/h)
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Evasive Steering Assist (If Equipped)
If your vehicle is rapidly approaching a
stationary vehicle or a vehicle traveling in
the same direction as your vehicle, the
system is designed to help you steer
around the vehicle.
The system only activates when all of the
following occur:
• The Pre-Collision Assist system detects
a vehicle ahead and starts to apply
Active Braking.
• You turn the steering wheel in an
attempt to steer around the vehicle.
After you turn the steering wheel, the
system applies additional steering torque
to help you steer around the vehicle. After
you pass the vehicle, the system applies
steering torque in the opposite direction to
encourage you to steer back into the lane.
The system deactivates after you fully pass
the vehicle.
Note: The system does not automatically
steer around a vehicle. If you do not turn the
steering wheel, the system does not
activate.
Note: The system does not activate if the
distance to the vehicle ahead is too small
and the system cannot avoid a crash.
Adjusting the Pre-Collision Assist
Settings
You can adjust the following settings by
using the touchscreen. See Settings (page
464
).
• You can change Alert and Distance
Alert sensitivity to one of three possible
settings.
• You can switch Distance Indication and
Alert on or off. •
If required, you can switch Active
Braking on or off.
• If required, you can switch Evasive
Steering Assist on or off.
Note: Active Braking and Evasive Steering
Assist automatically turn on every time you
switch the ignition on.
Note: If you switch Active Braking off,
Evasive Steering Assist turns off.
Blocked Sensors Camera.
1
Radar sensor (if equipped).
2
If a message regarding a blocked sensor
or camera appears in the information
display, the radar signals or camera images
are obstructed. If your vehicle has a radar
sensor, it is behind the fascia cover in the
center of the lower grille. With a blocked
sensor or camera, the Pre-Collision Assist
system may not function, or performance
may reduce. The following table lists
possible causes and actions for when this
message displays.
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Camera Troubleshooting
Action
Cause
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 screen.
Radar Troubleshooting (If Equipped) 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 screen.
The Pre-Collision Assist system is tempor-
arily disabled. Pre-Collision Assist automat-ically reactivates 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 automat-ically reactivates 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.
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 and your vehicle
has a radar sensor, the radar sensing zone
may change. This could cause missed or
false detections. Contact an authorized
dealer to have the radar checked for proper
coverage and operation.
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Protected Component
Fuse Rating
Fuse or Relay
Number
Body control module - battery power in
feed 1.
40A
1
Power outlet main console bin.
20A
2
Body control module - battery power in
feed 2.
40A
3
Fuel pump.
30A
4
Powertrain control module keep alive
power.
5A
5
Powertrain control module power.
20A
6
Canister vent solenoid.
20A
7
Evaporative leak control module.
Exhaust gas heat recovery (hybrid electric
vehicle).
Tank pressure control valve (hybrid electric
vehicle).
Refueling valve (plug-in hybrid electric
vehicle).
Vapor blocking valve.
Universal exhaust gas oxygen 11.
Universal exhaust gas oxygen 21.
Catalyst monitor sensor 12.
Catalyst monitor sensor 22.
Canister purge valve.
Cooling fan relay coil.
20A
8
Battery interrupt box.
Transmission oil pump.
Auxiliary coolant pump.
Fuel flap door (hybrid electric vehicle).
Engine coolant bypass valve.
Active grille shutters.
Ignition coils.
20A
9
Front blower motor relay.
40A
13
Transmission oil pump.
15A
14
A/C compressor variable clutch.
Auxiliary pumps (hybrid electric vehicle).
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Protected Component
Fuse Rating
Fuse or Relay
Number
Windshield and rear window washer pump
relay power.
15A
16
Charge status indicator (hybrid electric
vehicle).
5A
17
Starter motor.
30A
18
Headlamp leveling motors.
10A
21
Adaptive headlamps.
Electric power assisted steering module.
10A
22
Anti-lock brake system module with
integrated park brake.
10A
23
Powertrain control module.
10A
24
Hybrid powertrain control module.
Air quality sensor.
10A
25
360 camera with park aid.
Rear view camera.
Blind spot information system.
Adaptive cruise control module.
Transmission control module.
15A
26
Anti-lock brake system valves with integ-
rated park brake.
40A
28
Anti-lock brake system pump with integ-
rated park brake.
60A
29
Driver seat module.
30A
30
Passenger seat motor.
30A
31
Front media bin power point.
20A
32
Rear cargo area power point.
20A
33
Console end cap power point.
20A
34
Power point 4.
20A
35
Power inverter.
40A
36
Climate controlled seat module.
30A
38
Power liftgate module.
30A
41
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Protected Component
Fuse Rating
Fuse or Relay
Number
High voltage positive temperature coeffi-
cient heater (hybrid electric vehicle).
Traction battery coolant proportional valve
(hybrid electric vehicle).
10A
98
Not used (spare).
50A
103
Not used (spare).
50A
104
Not used (spare).
40A
105
Not used (spare).
40A
106
Not used (spare).
40A
107
Not used (spare).
20A
108
Passenger door module.
30A
109
Body control module voltage quality
monitor feed.
30A
111
Not used (spare).
20A
112
Not used (spare).
50A
114
Amplifier.
20A
115
Not used (spare).
5A
116
Second row heated seats.
30A
118
Port fuel injectors.
15A
120
Rain sensor.
5A
124
USB smart charger 1.
5A
125
Amplifier.
20A
127
Not used (spare).
15A
128
Power folding seat module.
40A
131
Heated wiper park.
15A
133
Family entertainment system.
10A
134
Not used (spare).
20A
136
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•
Stand at a minimum of 12 ft
(3.66 m) away from the wheel
and tire assembly.
• Use both eye and ear
protection.
Important: Remember to replace
the wheel valve stems when the
road tires are replaced on your
vehicle.
It is recommended that the two
front tires or two rear tires
generally be replaced as a pair if
the worn tires still have usable
depth.
To avoid potential Four-Wheel
Drive (4WD) malfunction or
(4WD) system damage, it is
recommended to replace all four
tires rather than mixing
significantly worn tires with new
tires.
The tire pressure sensors mounted
in the wheels (originally installed
on your vehicle) are not designed
to be used in aftermarket wheels.
The use of wheels or tires not
recommended may affect the
operation of your tire pressure
monitoring system.
If the tire pressure monitoring
system indicator is flashing, your
system is malfunctioning. Your
replacement tire might be
incompatible with your tire
pressure monitoring system, or
some component of the system
may be damaged. Safety Practices WARNING:
If your vehicle
is stuck in snow, mud or sand, do
not rapidly spin the tires;
spinning the tires can tear the
tire and cause an explosion. A
tire can explode in as little as
three to five seconds. WARNING:
Do not spin the
wheels at over 34 mph
(55 km/h). The tires may fail and
injure a passenger or bystander.
Driving habits have a great deal
to do with your tire mileage and
safety.
*Observe posted speed limits
*Avoid fast starts, stops and turns
*Avoid potholes and objects on
the road
*Do not run over curbs or hit the
tire against a curb when parking
Highway Hazards
No matter how carefully you drive,
there is always the possibility that
you may eventually have a flat tire
on the highway. Drive slowly to the
closest safe area out of traffic.
This may further damage the flat
tire, but your safety is more
important.
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If you feel a sudden vibration or
ride disturbance while driving, or
you suspect your tire or vehicle
has been damaged, immediately
reduce your speed. Drive with
caution until you can safely pull
off the road. Stop and inspect the
tires for damage. If a tire is
under-inflated or damaged,
deflate it, remove wheel and
replace it with your spare tire and
wheel. If you cannot detect a
cause, have the vehicle towed to
the nearest repair facility or tire
dealer to have the vehicle
inspected.
Tire and Wheel Alignment
A bad jolt from hitting a curb or
pothole can cause the front end
of your vehicle to become
misaligned or cause damage to
your tires. If your vehicle seems to
pull to one side when you are
driving, the wheels may be out of
alignment. Have an authorized
dealer check the wheel alignment
periodically.
Wheel misalignment in the front
or the rear can cause uneven and
rapid treadwear of your tires and
should be corrected by an
authorized dealer. Front-wheel
drive vehicles and those with an
independent rear suspension (if
equipped) may require alignment
of all four wheels.
The tires should also be balanced
periodically. An unbalanced tire
and wheel assembly may result in
irregular tire wear.
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.
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If you have any questions regarding snow
chains, 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 may cause
damage to the tire pressure monitoring
system sensor.
Note: If the tire pressure monitoring system
sensor becomes damaged, it may not
function. Each tire, including the spare (if
provided), should be checked
monthly when cold and inflated
to the inflation pressure recommended by
the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If
your vehicle has tires of a different size
than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires).
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that
illuminates a low tire pressure telltale
when one or more of your tires is
significantly under-inflated. Accordingly,
when the low tire pressure telltale
illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
significantly under-inflated tire causes the
tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the
vehicle ’s handling and stopping ability.
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Please note that the TPMS is not a
substitute for proper tire maintenance, and
it is the driver
’s responsibility to maintain
correct tire pressure, even if under-inflation
has not reached the level to trigger
illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with
a TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is
combined with the low tire pressure
telltale. When the system detects a
malfunction, the telltale will flash for
approximately one minute and then remain
continuously illuminated. This sequence
will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be able
to detect or signal low tire pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels
allow the TPMS to continue to function
properly.
This device complies with Part 15 of the
FCC Rules and with License exempt RSS
Standards of Industry Canada. Operation
is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including
interference that may cause undesired
operation. WARNING: Changes or
modifications not expressively approved
by the party responsible for compliance
could void the user's authority to operate
the equipment. The term "IC:" before the
radio certification number only signifies
that Industry Canada technical
specifications were met.
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.
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