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Phone
Possible Cause and Resolution
Symptom
During a call, I can hear
excessive background noise. –
Incorrect cell phone settings.
•Check and adjust the audio settings on your cell
phone. Refer to your cell phone's user manual.
– Cell phone malfunction.
•Switch your cell phone on and off, and vehicle
Bluetooth® on and off and try again.
– Cell phone microphone muted.
•Unmute your cell phone microphone.
During a call, I can hear the
other person but they
cannot hear me.
During a call, I cannot hear
the other person and they
cannot hear me.
–
System restart required.
•Switch the ignition off and open the door. Close
the door and lock the vehicle. Wait until the
touchscreen is off and any illuminated USB ports
are not illuminated. Unlock the vehicle, switch the
ignition on and try again.
I cannot download a phone-
book. –
Incompatible cell phone.
•Check the compatibility of your cell phone on our
website.
– Incorrect cell phone settings.
•Allow the system to retrieve contacts from your
cell phone. Refer to your cell phone's user manual.
– Incorrect system settings.
•Switch automatic phonebook download on. See
Settings
(page 427).
– Cell phone malfunction.
•Switch your cell phone off and on to reset it and
try again.
433
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing SYNC™ 3

Apps
Possible Cause and Resolution
Symptom
The system cannot find any
apps. –
Incompatible device.
•You need an Android device with OS 4.3 or higher
or an iOS device with iOS 8.0 or higher. Pair and
connect your Android device to find compatible
apps. Connect your iOS device to a USB port or
pair and connect using Bluetooth®.
I have a compatible device
and it is correctly connected
but the system still cannot
find any apps. –
Compatible apps are not installed on your device.
•Download and install the latest version of the app.
– Compatible apps are not running on your device.
•Start the apps to allow the system to find them
and make sure you sign in to any apps if required.
– Incorrect app settings.
•Check and adjust the app settings on your device
and allow SYNC to access the app if required.
I have a compatible device,
it is correctly connected and
my apps are running but the
system still cannot find any
apps. –
Apps failed to fully close.
•Restart the apps and try again.
• If you have an Android device with apps that have
an exit or quit option, use this and then restart the
apps. Alternatively, use the force stop option in the
settings menu on your device.
• If you have an iOS device with iOS 8.0 or higher,
tap the home button on your device twice and then
swipe the app upward to close it.
I have an Android device
that is correctly connected,
I have restarted my apps
and they are running but the
system still cannot find
them. –
An issue on some older versions of the Android oper-
ating system could result in apps not being found.
•Switch
Bluetooth® off and on again to force the
system to reconnect to your device.
436
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing SYNC™ 3

Possible Cause and Resolution
Symptom
I have an iOS device that is
correctly connected, I have
restarted my apps and they
are running but the system
still cannot find them. –
Cable connection issue.
•Disconnect the cable from your device, wait for a
moment and then connect it again to force the
system to reconnect to your device.
I have an Android device
running a media app which
the system has found but I
cannot hear the sound or
the sound is very quiet. –
Device volume is low.
•Turn the volume up on your device.
I have an Android device
running a number of
compatible apps but the
system cannot find all of
them. –
Device limitation. If you have more apps running on
your device than the number of available Bluetooth®
links, the system cannot find all of them.
•Close some of the apps to allow the system to find
those that you want to use.
437
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing SYNC™ 3

AUXILIARY SWITCHES
The auxiliary switchboard on the center
console makes aftermarket customization
easier, with four prewired switches
attached to the power distribution box for
electrical accessories. When using the auxiliary switches for an
extended period of time, we recommend
that the engine is running to prevent the
battery from running out of charge.
A fuse and relay kit is included with this
option. The kit contains fuses and relays
for the pre-fusebox, located under the
driver
’s seat. Refer to the instructions
included with the kit. See an authorized
dealer for service.
There is one power lead connector for each
switch. These can be found at either the
43-way connector for the AUX 1 and AUX
2 switches or the 6-way connector for the
AUX 3 and AUX 4 switches. Both
connectors are behind the passenger side
cup holder.
The relays are coded as follows: Fuse Rating
Wire Color
Circuit Number
20A
Yellow
CAC05
AUX 1 1
20A
Green with brown
trace
CAC06
AUX 2 1
40A
Blue with orange
trace
CAC13
AUX 3 1
40A
Yellow with orange
trace
CAC14
AUX 4 2
1 Operates when you switch the ignition on.
2 Operates only when the engine is running.
If different switch functionality is required
please contact the Truck Body Builders
Advisory Service. See Special Notices
(page 11).
443
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing AccessoriesE163431

ELECTROMAGNETIC
COMPATIBILITY
WARNING: Do not place objects
or mount equipment on or near the
airbag cover, on the side of the front or
rear seatbacks, or in areas that may
come into contact with a deploying
airbag. Failure to follow these
instructions may increase the risk of
personal injury in the event of a crash. WARNING: Do not fasten antenna
cables to vehicle wiring, fuel pipes and
brake pipes. WARNING:
Keep antenna and
power cables at least 4 in (10 cm) from
any electronic modules and airbags. Note:
We test and certify your vehicle to
meet electromagnetic compatibility
legislation. It is your responsibility to make
sure that any equipment an authorized
dealer installs on your vehicle complies with
applicable local legislation and other
requirements. Installation of some
aftermarket electronic devices could
degrade the performance of vehicle
functions, which use radio frequency signals
such as broadcast radio receiver, tire
pressure monitoring system, push button
start, Bluetooth®
connectivity or satellite
navigation.
Note: Any radio frequency transmitter
equipment in your vehicle (such as cellular
telephones and amateur radio transmitters)
must keep to the parameters in the
following illustrations and table. We do not
provide any other special provisions or
conditions for installations or use.
Car/SUV 461
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing AppendicesE239120

Instrument Cluster Screens, LCD Screens
and Radio Screens....................................... 306
Leather Interior................................................... 306
Mirrors.................................................................... 307
Rear Windows..................................................... 307
Seatbelts.............................................................. 306
Storage Compartments, Cup Holders and Ashtrays............................................................ 307
Suede Micro Fiber Fabric................................ 306
Cleaning the Wheels..................................308
Cleaning the Windows and Wiper Blades...........................................................305
Clearing All MyKeys.......................................73
Climate Control.............................................122
Closing the Sliding Door.............................80
Closing the Sliding Door From Inside Your
Vehicle................................................................ 80
Closing the Sliding Door From Outside Your Vehicle.................................................................. 81
Closing the Sliding Door With the Remote Control................................................................ 84
Cold Weather Precautions.......................246
Connected Vehicle
........................................371
Connecting the Vehicle to a Mobile
Network............................................................. 371
Connected Vehicle Data - Vehicles With: Modem.............................................................16
Connected Vehicle Limitations................371
Connected Vehicle Requirements..........371
Connected Vehicle – Troubleshooting - Vehicles With: Modem............................372
Connected Vehicle – Troubleshooting - Vehicles With: SYNC/SYNC 3..............373
Connecting a Bluetooth® Device - Vehicles Without: SYNC
........................380
Pairing a Device................................................. 380
Connecting the Vehicle to a Mobile Network.........................................................371
Connecting FordPass to the Modem...........371
Enabling and Disabling the Modem.............371
What Is the Modem............................................ 371
Connecting the Vehicle to a Wi-Fi Network........................................................372
Coolant Check See: Engine Coolant Check........................... 285
Crash and Breakdown Information.......255 Post-Crash Alert System................................ 255
Crash Sensors and Airbag Indicator.......59 Creating a MyKey.............................................71
MyKey Information Messages........................... 71
Creating a Vehicle Wi-Fi Hotspot...........375 Connecting a Device to the Wi-Fi
Hotspot............................................................. 375
Finding the Wi-Fi Hotspot Name and Password.......................................................... 375
Cross Traffic Alert.........................................216 Cross Traffic Alert behavior when trailer is
attached............................................................ 218
Cross Traffic Alert Indicator............................ 218
Cross Traffic Alert Information Messages.......................................................... 218
Cross Traffic Alert System Limitations........................................................ 217
Cross Traffic Alert System Sensors..............217
Switching the System On and Off...............218
Using Cross Traffic Alert................................... 216
Cruise Control
................................................198
Principle of Operation...................................... 198
Cruise control See: Using Cruise Control................................ 198
Customer Assistance.................................256
Customer Information
...............................454
D
Data Privacy
......................................................14
Services That Third Parties Provide...............14
Services That We Provide.................................. 14
Daytime Running Lamps...........................102 Type 1 - Conventional
(Non-Configurable)...................................... 102
Type 2 - Configurable........................................ 102
Declaration of Conformity
.......................489
Radio Frequency Statement........................ 489
Direction Indicators
.....................................105
Direction Indicator.............................................. 105
Switching the Direction Indicators On and Off....................................................................... 105
Doors and Locks.............................................76
Drive Belt Routing - Vehicles With: Dual Generators...................................................301
Drive Belt Routing - Vehicles With: Single Generator.....................................................301
Drive Control..................................................226 Selectable Drive Modes.................................. 226
494
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Index

Seatbelt Warning Lamp and Indicator
Chime..............................................................46
Conditions of operation..................................... 47
Seats.................................................................126
Security..............................................................89
Service Data......................................................15
Settings Data....................................................16
Comfort and Convenience Data...................... 16
Entertainment Data............................................. 16
Settings............................................................427 ........................................................................\
........... 427
911 Assist............................................................... 428
Ambient Lighting............................................... 428
Audio....................................................................... 427
Automatic Updates.......................................... 428
Charge Settings.................................................. 428
Clock....................................................................... 427
Display................................................................... 428
Driver Assist......................................................... 428
FordPass............................................................... 428
General.................................................................. 428
Message Center................................................. 428
Mobile Apps......................................................... 428
Multi Contour Seats.......................................... 428
Navigation............................................................ 428
Personal Profiles................................................ 428
Phone..................................................................... 427
Seats...................................................................... 428
Sound..................................................................... 427
Valet Mode........................................................... 428
Vehicle................................................................... 428
Voice Control....................................................... 428
Side Airbags
......................................................57
Side Sensing System..................................189 Object Distance Indicator............................... 190
Sitting in the Correct Position..................126
Sliding Door Precautions
............................80
Sliding Door.....................................................80
Closing the Sliding Door.................................... 80
Opening the Sliding Door................................. 80
Sliding Door – Troubleshooting...................... 85
Sliding Door – Troubleshooting
...............85
Sliding Door – Frequently Asked
Questions ........................................................... 86
Sliding Door – Information Messages..........85
Snow Chains See: Using Snow Chains................................. 333Spare Wheel
See: Changing a Road Wheel....................... 339
Special Notices
.................................................11
New Vehicle Limited Warranty.......................... 11
Special Operating Conditions Scheduled Maintenance...............................................451
Exceptions............................................................ 453
Speed Control See: Cruise Control............................................ 198
Speed Limiter
...............................................206
Principle of Operation..................................... 206
Using Speed Limiter......................................... 206
Stability Control
.............................................181
Principle of Operation........................................ 181
Starter Switch See: Ignition Switch........................................... 144
Starting a Gasoline Engine.......................144 Engine Warning Lamps.................................... 146
Failure to Start..................................................... 145
Guarding Against Exhaust Fumes................145
Important Ventilating Information..............146
Starting the Engine............................................ 145
Stopping the Engine When Your Vehicle is Moving............................................................... 145
Stopping the Engine When Your Vehicle is Stationary......................................................... 145
Starting and Stopping the Engine.........144 General Information.......................................... 144
Steering...........................................................220 Adaptive Learning............................................... 221
Electric Power Steering................................... 220
Steering Information Messages..................... 221
Steering Wheel...............................................96
Stopping the Engine
....................................148
Stopping the Sliding Door Movement.....................................................84
Storage Compartments
..............................141
Storage.............................................................142 Bottle Holders...................................................... 142
Overhead Storage.............................................. 142
Rear Overhead Storage.................................... 142
Streaming Bluetooth Audio - Vehicles Without: SYNC..........................................380
Selecting a Source............................................ 380
Supplementary Restraints System.........50 Principle of Operation........................................ 50
Switching Auto-Start-Stop On and Off...................................................................148
502
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Index