2021 FORD EXPLORER brake sensor

Action
Message
The battery management system determines that the 12V batteryis at a low state of charge. Start the engine to charge the batteryor charge the battery using an aftermarket battery charger. This
message clears once you restart your vehicle and the battery state of charge has recovered.
Battery State of
Charge Low
The battery management system determines that the battery is ata low state of charge. Turn the ignition off as soon as possible toprotect the battery. This message will clear once the vehicle has
been started and the battery state of charge has recovered. Turning off unnecessary electrical loads will allow faster battery state-of- charge recovery.
Turn Power Off To
Save Battery
Displays when the battery management system detects an
extended low-voltage condition. Various vehicle features will be disabled to help preserve the battery. Turn off as many of the
electrical loads as soon as possible to improve system voltage. If
the system voltage has recovered, the disabled features will operate again as normal.
Low Battery
Features Tempor- arily Turned Off
Battery and Charging System (High Voltage) Action
Message
Displays when the stop safety hazard warning lamp is illuminated.This indicates an electrical component that requires service. This causes the vehicle to shut down or enter into limited operating mode.
Stop Safely Now
Blind Spot Information and Cross Traffic Alert System Action
Message
A system error has occurred. Have the system checked as soon as possible.
Blind Spot System
Fault
The system sensors are blocked. See Blind Spot Information
System (page 264).
Blind Spot Not
Available Sensor Blocked See Manual
The system detects a vehicle and automatically applied the brakes.
Cross Traffic Alert
Applying Brakes
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Information Displays

Power Steering
Action
Message
The power steering system has detected a condition that requiresservice. Have the system checked as soon as possible.
Steering Fault
Service Now
The power steering system is not working. Stop your vehicle in asafe place. Have the system checked as soon as possible.
Steering Loss Stop
Safely
The power steering system has detected a condition within the
power steering system or passive entry or passive start system that requires service. Have the system checked as soon as possible.
Steering Assist
Fault Service Required
The steering lock system has detected a condition that requiresservice. Have the system checked as soon as possible.
Steering Lock
Malfunction
Service Now
Pre-Collision Assist Action
Message
You have a blocked sensor due to inclement weather, ice, mud or
water in front of the radar sensor. You can typically clean the sensor
to resolve.
Pre-Collision
Assist Not Avail- able SensorBlocked
A fault with the system has occurred. Have the system checked as
soon as possible.
Pre-Collision
Assist Not Avail- able
Remote Start Action
Message
Displays as a reminder to apply the brake and push the gear shiftbutton to drive the vehicle after a remote start.
To Drive: Press
Brake and Gear Shift Button
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Information Displays

Seats
Action
Message
Objects are by the passenger seat. After the objects are moved
away from the seat, if the warning stays on or continues to come on have the system checked as soon as possible.
Occupant Sensor
BLOCKED Remove Objects Near
Passenger Seat
Displays as a reminder that memory seats are not available while driving.
Memory Recall Not
Permitted While Driving
Displays to show where your memory setting has been saved.
Memory X Saved
Starting System Action
Message
Displays when starting the vehicle as a reminder to apply the brake.
To START Press
Brake
Displays when the starter has exceeded its cranking time inattempting to start the vehicle.
Cranking Time
Exceeded
Displays when the starter is attempting to start the vehicle.
Engine Start
Pending Please Wait
Displays when the pending start has been cancelled.
Pending Start
Cancelled
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Information Displays

Tire Pressure Monitoring System
Action
Message
One or more tires on your vehicle have low tire pressure. See Tire
Pressure Monitoring System (page 368).
Tire Pressure Low
The tire pressure monitoring system is malfunctioning. If the warning
stays on or continues to come on, have the system checked as soonas possible. See
Tire Pressure Monitoring System (page 368).
Tire Pressure
Monitor Fault
A tire pressure sensor is malfunctioning, or your spare tire is in use.For more information on how the system operates under these
conditions, See
Tire Pressure Monitoring System (page 368). If
the warning stays on or continues to come on, have the system checked as soon as possible.
Tire Pressure
Sensor Fault
Trailer Action
Message
A correct trailer connection is sensed duringa given ignition cycle.
Trailer Connected
A trailer connection becomes disconnected,either intentionally or unintentionally, and has been sensed during a given ignition cycle.
Trailer Disconnected
The trailer sway control has detected trailersway.
Trailer Sway Reduce Speed
There are certain faults in your vehicle
wiring and trailer wiring/brake system. See Towing a Trailer
(page 288).
Trailer Wiring Fault
There is a fault with your trailer turn lamp.Check your lamp.
Trailer Left Turn Lamps Fault Check Lamps
There is a fault with your trailer turn lamp.Check your lamp.
Trailer Right Turn Lamps Fault Check
Lamps
There is a fault with your trailer battery.See
Towing a Trailer (page 288).
Trailer Battery Not Charging See Manual
There is a fault with your vehicle trailer
lighting module. See
Towing a Trailer
(page 288).
Trailer Lighting Module Fault See Manual
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Information Displays

Releasing the Electric Parking
Brake if the Vehicle Battery is
Running Out of Charge
Connect a booster battery to the vehicle
battery to release the electric parking brake
if the vehicle battery is running out of
charge. See Jump Starting the Vehicle
(page 300).
HILL START ASSIST WARNING:
The system does not
replace the parking brake. When you
leave your vehicle, always apply the
parking brake. WARNING:
You must remain in
your vehicle when the system turns on.
At all times, you are responsible for
controlling your vehicle, supervising the
system and intervening, if required.
Failure to take care may result in the loss
of control of your vehicle, serious
personal injury or death. WARNING:
The system will turn
off if a malfunction is apparent or if you
rev the engine excessively. Failure to take
care may result in the loss of control of
your vehicle, serious personal injury or
death.
The system makes it easier to pull away
when your vehicle is on a slope without the
need to use the parking brake.
When the system is active, your vehicle
remains stationary on the slope for two to
three seconds after you release the brake
pedal. This allows time to move your foot
from the brake to the accelerator pedal.
The system releases the brakes
automatically once the engine has 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 Manual Transmission
You can switch this feature on or off in the
information display. The system
remembers the last setting when you start
your vehicle.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Brakes

WHAT IS REVERSE BRAKING
ASSIST
The system is designed to reduce impact
damage or avoid a collision completely by
using the sensors on the rear of your
vehicle. The system functions when in
reverse (R) and traveling at a speed of
1–
7 mph (1.5– 12 km/h).
If the system detects an obstacle behind
your vehicle, it provides a warning through
the rear parking aid or cross traffic alert
system.
REVERSE BRAKING ASSIST
PRECAUTIONS 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:
To help avoid personal
injury, always use caution when in
reverse (R) and when using the sensing
system. WARNING:
The system may not
operate properly during severe weather
conditions, for example snow, ice, heavy
rain and spray. Always drive with due
care and attention. Failure to take care
may result in a crash. WARNING: Traffic control systems,
inclement weather, air brakes, external
motors and fans may affect the correct
operation of the sensing system. This
may cause reduced performance or false
alerts. 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. WARNING:
Do not use the system
with accessories that extend beyond the
front or rear of your vehicle, for example
a trailer hitch or bike rack. The system is
not able to make corrections for the
additional length of the accessories.
The system only applies the brakes for a
short period of time when an event occurs.
Act as soon as you notice the brakes apply
in order to remain in control of the vehicle.
Note: Certain add-on devices around the
bumper or fascia may create false alerts.
For example, large trailer hitches, bicycle or
surfboard racks, license plate brackets,
bumper covers or any other device that may
block the normal detection zone of the
system. Remove the add-on device to
prevent false alerts.
Note: The system does not react to small
or moving objects, particularly those close
to the ground.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Reverse Braking Assist
(If Equipped)E205199

Note:
The system does not operate during
hard acceleration or steering.
Note: If your vehicle sustains damage to
the bumper or fascia leaving it misaligned
or bent, it could alter the sensing zone
causing inaccurate measurement of
obstacles or false alerts.
Note: Vehicle loading and suspension
changes can impact the angle of the sensors
and may change the normal detection zone
of the system resulting in inaccurate
measurement of obstacles or false alerts.
Note: When you connect a trailer, the
system may detect the trailer and provide
an alert, or the system turns off. If the
system does not turn off, switch the system
off manually after you connect the trailer.
Note: You may experience reduced system
performance on road surfaces that limit
deceleration. For example, roads with ice,
loose gravel, mud or sand.
SWITCHING REVERSE
BRAKING ASSIST ON AND OFF
You can switch the system on or off
through the touchscreen. See Settings
(page 464). Note:
The system is unavailable when rear
parking aid or cross traffic alert is off.
OVERRIDING REVERSE
BRAKING ASSIST
There could be instances when
unexpected or unwanted braking occurs.
Firmly pressing the accelerator pedal or
switching the feature off overrides the
system.
REVERSE BRAKING ASSIST
INDICATORS
If the system determines that a collision
with an obstacle may occur, full braking
may apply. Bring your vehicle to a stop a
safe distance away from the obstacle. A message and warning
indicator appear when the
system applies the brakes.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Reverse Braking Assist
(If Equipped)E293490

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 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 systems
applies higher brake forces.
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.
Curve Control
The system enhances your vehicle ’s ability
to follow the road when cornering severely
or avoiding objects in the roadway. Curve
Control operates by reducing engine power
and, if necessary, applying brakes to one
or more of the wheels individually.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Stability Control