2021 FORD EXPLORER service reset

Potential station issues
Action
Cause
Issues
No action required. This is a
broadcast issue.
This is poor time alignment
by the radio broadcaster.
Echo, stutter, skip or repeat
in audio.
Increase or decrease in
audio volume.
No action required. The
reception issue may clear up
as you continue to drive.
The radio is shifting between
analog and digital audio.
Sound fading or blending in
and out.
No action required. This is
normal behavior. Wait until
the audio is available.
The digital multicast is not
available until the HD Radio
broadcast is decoded. Once
decoded, the audio is avail-
able.
There is an audio mute
delay when selecting HD2 or
HD3, multicast preset or
Direct Tune.
No action required. The
station is not available in
your current location.
The previously stored
multicast preset or direct
tune is not available in your
current reception area.
Cannot access HD2 or HD3
multicast channel when
recalling a preset or from a
direct tune.
Fill out the station issue
form at website listed
below.1
Data service issue by the
radio broadcaster.
Text information does not
match currently playing
audio.
Fill out the station issue
form at website listed
below.1
Data service issue by the
radio broadcaster.
There is no text information
shown for currently selected
frequency.
1 http://hdradio.com/stations/feedback
HD Radio Technology manufactured under
license from iBiquity Digital Corporation
and foreign patents. HD Radio and the HD
and HD Radio logos are proprietary
trademarks of DTS Ford Motor Company
and DTS are not responsible for the
content sent using HD Radio technology.
Content may be changed, added or deleted
at any time at the station owner's
discretion. SATELLITE RADIO
(IF EQUIPPED)
SiriusXM® Satellite Radio broadcasts a
variety of music, news, sports, weather,
traffic and entertainment satellite radio
channels. For more information and a
complete list of SiriusXM satellite radio
channels, visit www.siriusxm.com in the
United States, www.siriusxm.ca in Canada,
or call SiriusXM at 1-888-539-7474.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Audio System

Locating Your ESN
With satellite radio as the source, use the
touchscreen to select the following:
1. Select Settings. See Settings (page
464).
2. Select
SiriusXM.
3. Select
SiriusXM information.
Troubleshooting Action
Condition
Message
No action required. This
message should disappear
shortly.
Radio requires more than
two seconds to produce
audio for the selected
channel.
Acquiring…
If this message does not
clear shortly, or with an igni-
tion key cycle, your receiver
may have a fault. See an
authorized dealer for service.
There is an internal module
or system failure present.
Satellite antenna fault
SIRIUS system failure
Tune to another channel or
choose another preset.
The channel is no longer
available.
Invalid Channel
Contact SiriusXM at 1-888-
539-7474 to subscribe to
the channel, or tune to
another channel.
Your subscription does not
include this channel.
Unsubscribed Channel
The signal is blocked. When
you move into an open area,
the signal should return.
The signal is lost from the
SiriusXM satellite or Siri-
usXM tower to your vehicle
antenna.
No Signal
No action required. The
process may take up to
three minutes.
Update of channel
programming in progress.
Updating…
Contact SiriusXM at 1-888-
539-7474 to resolve
subscription issues.
Your satellite service is no
longer available.
Questions? Call
1-888-539-7474
Use the channel guide to
turn off the Lock or Skip
function on that station.
All the channels in the
selected category are either
skipped or locked.
None found
Check Channel Guide
No action required.
SiriusXM has updated the
channels available for your
vehicle.
Subscription Updated
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Audio System

Troubleshooting Tips
Action
Cause
Message
No action required. This
message should disappear
shortly.
Radio requires more than two
seconds to produce audio for
the selected channel.
Acquiring Signal
If this message does not clear
shortly, or with an ignition key
cycle, your receiver may have
a fault. See an authorized
dealer for service.
There is an internal module or
system failure present.
Satellite antenna fault
SIRIUS system failure
Tune to another channel or
choose another preset.
The channel is no longer avail-
able.
Invalid Channel
Contact SiriusXM at 1-888-
539-7474 to subscribe to the
channel, or tune to another
channel.
Your subscription does not
include this channel.
Unsubscribed Channel
The signal is blocked. When
you move into an open area,
the signal should return.
The signal is lost from the Siri-
usXM satellite or SiriusXM
tower to your vehicle antenna.
Satellite acquiring
signal…
No action required. The
process may take up to three
minutes.
Update of channel program-
ming in progress.
Updating…
Contact SiriusXM at 1-888-
539-7474 to resolve subscrip-
tion issues.
Your satellite service is no
longer available.
Questions? Call 1-
888-539-7474
Use the channel guide or the
Sirius XM Settings tile to turn
off the Lock or Skip function on
that station.
All the channels in the selected
category are either skipped or
locked.
None found. Check
channel guide.
No action required.
SiriusXM has updated the
channels available for your
vehicle.
SIRIUS Subscription
updated
HD Radio ™ Information (If
Available)
To activate HD radio, please see the Radio
Settings in the Settings Chapter. See
Settings (page 464). Note:
HD Radio broadcasts are not
available in all markets.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing SYNC™ 3

Potential Station Issues
Action
Cause
Issues
No action required. The station
is not available in your current
location.
The previously stored multicast
preset or direct tune is not
available in your current recep-
tion area.
Cannot access HD2 or
HD3 multicast channel
when recalling a preset
or from a direct tune.
Fill out the station issue form.1
Data service issue by the radio
broadcaster.
Text information does
not match currently
playing audio.
Fill out the station issue form.
1
Data service issue by the radio
broadcaster.
There is no text
information shown for
currently selected
frequency.
1 You can find the form here: Website
http://hdradio.com/stations/feedback
HD Radio Technology manufactured under
license from iBiquity Digital Corporation
and foreign patents. HD Radio and the HD
and HD Radio logos are proprietary
trademarks of DTS. The vehicle
manufacturer and DTS are not responsible
for the content sent using HD Radio
technology. Content may be changed,
added or deleted at any time at the station
owner's discretion. CD (If Equipped)
Once you select this option, the system
returns you to the main audio screen.
The current audio information appears on
the screen.
The following buttons are also available: Function
Button
You can use the browse button to select a track.
Browse
Select this button and a small number one displays to indicate
the track is set to repeat.
Repeat
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing SYNC™ 3

When the oil change message appears in
the information display, it is time for an oil
change. Make sure you perform the oil
change within two weeks or 500 mi
(800 km) of the message appearing. Make
sure you reset the Intelligent Oil-Life
Monitor after each oil change. See
Oil
Change Indicator Reset (page 327).
If your information display resets
prematurely or becomes inoperative, you
should perform the oil change interval at
six months or
5,000 mi (8,000 km) from
your last oil change. Never exceed one year
or
10,000 mi (16,000 km) between oil
change intervals,
Your vehicle is very sophisticated and built
with multiple, complex performance
systems. Every manufacturer develops
these systems using different
specifications and performance features.
That is why it is important to rely upon your
dealership to properly diagnose and repair
your vehicle.
We have recommended maintenance
intervals for various parts and component
systems based upon engineering testing.
We rely upon this testing to determine the
most appropriate mileage for replacement
of oils and fluids to protect your vehicle at
the lowest overall cost to you and
recommends against maintenance
schedules that deviate from the scheduled
maintenance information.
We strongly recommend the use of only
our genuine manufactured or our
authorized re-manufactured replacement
parts engineered for your vehicle. Additives and Chemicals
This owner's manual and our Workshop
Manual list the recommended additives
and chemicals for your vehicle. We do not
recommend using chemicals or additives
not approved by us as part of your vehicle
’s
normal maintenance. Please consult your
warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a
normal operating characteristic and, by
itself, does not necessarily indicate a
concern or that the fluid needs to be
changed. However, a qualified expert, such
as the factory-trained technicians at your
dealership, should inspect discolored fluids
that also show signs of overheating or
foreign material contamination
immediately.
Make sure to change your vehicle ’s oils and
fluids at the specified intervals or in
conjunction with a repair. Flushing is a
viable way to change fluid for many vehicle
sub-systems during scheduled
maintenance. It is critical that systems are
flushed only with new fluid that is the same
as that required to fill and operate the
system or using our approved flushing
chemical.
Owner Checks and Services
Make sure you perform the following basic
maintenance checks and inspections every
month or at six-month intervals.
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Scheduled Maintenance

At Every Oil Change Interval as Indicated by the Information Display
1
Inspect the steering linkage, ball joints, suspension and the tire-rod ends.
Inspect the tires, tire wear and measure the tread depth.
Inspect the wheels and related components for abnormal noise, wear, looseness or
drag.
1 Do not exceed one year or 12,500 mi (20,000 km) between service intervals.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes. See Engine Oil
Check
(page 326). Brake Fluid Maintenance
1
Change the brake fluid. 2
Every Three Years
1 Perform this maintenance item every three years. Do not exceed the designated time
for the interval.
2 Brake fluid servicing requires special equipment available at your authorized dealer. Other Maintenance Items
1
Replace the cabin air filter.
Every
20,000 mi
(32,000 km)
Replace the engine air filter.
Every
30,000 mi
(48,000 km)
Change the engine coolant and motor electronics coolant. 2
At
200,000 mi
(322,000 km)
Replace the spark plugs.
Every
100,000 mi
(160,000 km)
Inspect the accessory drive belt or belts. 3
Every
100,000 mi
(160,000 km)
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Scheduled Maintenance

Other Maintenance Items
1
Change the automatic transmission fluid.
Every 150,000 mi
(240,000 km) Replace the accessory drive belt or belts. 4
1 Perform these maintenance items within
3,000 mi (4,800 km) of the last engine oil
and filter change. Do not exceed the designated distance for the interval.
2 Initial replacement at 10 years or
200,000 mi (322,000 km), then every 5 years or
100,000 mi (160,000 km).
3 After initial inspection, inspect every other oil change until replaced.
4 If not replaced within the last
100,000 mi (160,000 km).
SPECIAL OPERATING
CONDITIONS SCHEDULED
MAINTENANCE
If you operate your vehicle primarily in any
of the following conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician. Perform the services shown in the
following tables when specified or within
3,000 mi (4,800 km)
of the message
appearing in the information display
prompting you to change your oil.
• Example 1: The message comes on at
28,750 mi (46,270 km)
. Perform the
30,000 mi (48,000 km) automatic
transmission fluid replacement.
• Example 2: The message has not come
on, but the odometer reads 30,000 mi
(48,000 km)
(for example, the
Intelligent Oil-Life Monitor was reset
at
25,000 mi (40,000 km). Perform
the engine air filter replacement. Towing a Trailer or Using a Car-top Carrier
Change engine oil and filter as indicated by the information
display and perform services listed in the Normal Sched-
uled Maintenance chart.
As required
Inspect front axle.
Inspect frequently, service
as required
Inspect rear axle and U-joints.
Inspect half-shaft boots.
See axle maintenance items under Exceptions.
Replace spark plugs.
Every
60,000 mi
(96,000 km)
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Scheduled Maintenance

Extensive Idling or Low-speed Driving for Long Distances, as in Heavy Commercial Use
Change engine oil and filter as indicated by the information
display and perform services listed in the Normal Sched-
uled Maintenance chart.
As required
Replace cabin air filter.
Inspect frequently, service
as required
Replace engine air filter.
Replace spark plugs.
Every 60,000 mi
(96,000 km) Operating in Dusty or Sandy Conditions - Such as Unpaved or Dusty Roads
Replace cabin air filter.
Inspect frequently, service
as required
Replace engine air filter.
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Every
5,000 mi (8,000 km)
Rotate tires, inspect tires for wear and measure tread
depth.
Change engine oil and filter. 1
Every
5,000 mi (8,000 km)
or six months
Perform multi-point inspection.
1 Reset your Intelligent Oil-Life Monitor after engine oil and filter changes. See Oil Change
Indicator Reset
(page 327). Exclusive use of E85 - Flex Fuel Vehicles Only
If ran exclusively on E85, fill the fuel tank full with regular
unleaded fuel.
Every oil change
Exceptions
There are several exceptions to the Normal
Schedule: Axle and Transfer Case Maintenance
The transfer case, front and rear axles in
your vehicle do not require normal
scheduled maintenance. Your vehicle is
electronically monitored and notifies you
of required service by displaying a message
in the information display. The transfer
case, front and rear axles are more likely
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Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Scheduled Maintenance