2018 FORD FLEX tire pressure

2. This device must accept any
interference received, including
interference that may cause undesired
operation.
Note: 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 Inflating Your Tires in this
chapter. Understanding Your Tire Pressure
Monitoring System
The tire pressure monitoring system
measures pressure in your four road tires
and sends the tire pressure readings to
your vehicle. 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:
294
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Wheels and TiresE142549

Customer action required
Possible cause
Low tire pressure
warning light
Make sure tires are at the proper pres-
sure. See Inflating your tires in this
chapter. After inflating your tires to the
manufacturer’s recommended pressure
as shown on the Tire Label (located on
the edge of driver ’s door or the B-Pillar),
the vehicle must be driven for at least
two minutes over 20 mph (32 km/h)
before the light turns off.
Tire(s) under-inflated
Solid warning light
Repair the damaged road wheel and tire
assembly and reinstall it on the vehicle
to restore system function. For a
description on how the system functions,
see
When your temporary spare tire
is installed in this section.
Spare tire in use
If the tires are properly inflated and the
spare tire is not in use but the light
remains on, contact your authorized
dealer as soon as possible.
TPMS malfunction
Repair the damaged road wheel and tire
assembly and reinstall it on the vehicle
to restore system function. For a
description on how the system functions,
see
When your temporary spare tire
is installed in this section.
Spare tire in use
Flashing warning
light
If the tires are properly inflated and the
spare tire is not in use but the light
remains on, contact your authorized
dealer as soon as possible.
TPMS malfunction
When Inflating Your Tires
When putting air into your tires (such as at
a gas station or in your garage), the tire
pressure monitoring system may not
respond immediately to the air added to
your tires. It may take up to two minutes of driving
over 20 mph (32 km/h) for the light to turn
off after you have filled your tires to the
recommended inflation pressure.
295
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Wheels and Tires

How Temperature Affects Your Tire
Pressure
The tire pressure monitoring system
monitors tire pressure in each pneumatic
tire. While driving in a normal manner, a
typical passenger tire inflation pressure
may increase about 2
–4 psi (14– 28 kPa)
from a cold start situation. If the vehicle is
stationary overnight with the outside
temperature significantly lower than the
daytime temperature, the tire pressure may
decrease about 3 psi (21 kPa) for a drop of
30°F (17°C) in ambient temperature. This
lower pressure value may be detected by
the tire pressure monitoring system as
being significantly lower than the
recommended inflation pressure and
activate the system warning light for low
tire pressure. If the low tire pressure
warning light is on, visually check each tire
to verify that no tire is flat. If one or more
tires are flat, repair as necessary. Check
the air pressure in the road tires. If any tire
is under-inflated, carefully drive the vehicle
to the nearest location where air can be
added to the tires. Inflate all the tires to
the recommended inflation pressure.
CHANGING A ROAD WHEEL WARNINGS
The use of tire sealant may damage
your tire pressure monitoring system
and should only be used in roadside
emergencies. If you must use a sealant, the
Ford Tire Mobility Kit sealant should be
used. The tire pressure monitoring system
sensor and valve stem on the wheel must
be replaced by an authorized dealer after
use of the sealant. See
Tire Pressure Monitoring
System (page 293). If the tire
pressure monitor sensor becomes
damaged, it will no longer function. Note:
The tire pressure monitoring system
indicator light will illuminate when the spare
tire is in use. To restore the full function of
the monitoring system, all road wheels
equipped with tire pressure monitoring
sensors must be mounted on the vehicle.
If you get a flat tire while driving, do not
apply the brake heavily. Instead, gradually
decrease your speed. Hold the steering
wheel firmly and slowly move to a safe
place on the side of the road.
Have a flat serviced by an authorized
dealer in order to prevent damage to the
tire pressure monitoring system sensors.
See
Tire Pressure Monitoring System
(page 293). Replace the spare tire with a
road tire as soon as possible. During
repairing or replacing of the flat tire, have
the authorized dealer inspect the tire
pressure monitoring system sensor for
damage.
Dissimilar Spare Wheel and Tire
Assembly Information WARNING
Failure to follow these guidelines
could result in an increased risk of
loss of vehicle control, injury or death.
If you have a dissimilar spare wheel and
tire, then it is intended for temporary use
only. This means that if you need to use it,
you should replace it as soon as possible
with a road wheel and tire assembly that
is the same size and type as the road tires
and wheels that were originally provided
by Ford. If the dissimilar spare tire or wheel
is damaged, it should be replaced rather
than repaired.
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
and can be one of three types:
296
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Wheels and Tires

Check Every Month
Engine oil level.
Function of all interior and exterior lights.
Tires (including spare) for wear and proper pressure. Windshield washer fluid level.
Fuel and water separator. Drain if necessary (or if indicated by the information display). Holes and slots in the tail pipe to make sure they are functional and clear of debris. Check Every Six Months
Battery connections. Clean if necessary.
Body and door drain holes for obstructions. Clean if necessary. Cooling system fluid level and coolant strength.
Door weatherstrips for wear. Lubricate if necessary.
Hinges, latches and outside locks for proper operation. Lubricate if necessary. Parking brake for proper operation.
Safety belts and seat latches for wear and function.
Safety warning lamps (brake, ABS, airbag and safety belt) for operation.
Washer spray and wiper operation. Clean or replace blades as necessary.
Multi-Point Inspection
In order to keep your vehicle running right,
it is important to have the systems on your
vehicle checked regularly. This can help
identify potential issues and prevent major
problems. We recommend having the
following multi-point inspection performed
at every scheduled maintenance interval
to help make sure your vehicle keeps
running great.
449
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Scheduled Maintenance

Multi-Point Inspection
Hazard warning system operation
Accessory drive belt(s)
Horn operation
Battery performance
Radiator, cooler, heater and air conditioninghoses
Engine air filter
Suspension components for leaks ordamage
Exhaust system
Steering and linkage
Exterior lamps operation
Tires (including spare) for wear and properpressure2
Fluid levels 1
; fill if necessary
Windshield for cracks, chips or pits
For oil and fluid leaks
Washer spray and wiper operation
Half-shaft dust boots
1 Brake, coolant recovery reservoir, automatic transmission and window washer
2 If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration
Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive
way to perform a thorough inspection of
your vehicle. Your checklist gives you
immediate feedback on the overall
condition of your vehicle.
NORMAL SCHEDULED
MAINTENANCE
Intelligent Oil-Life Monitor™
Your vehicle is equipped with an Intelligent
Oil-Life Monitor that determines when you
should change the engine oil based on how
your vehicle is used. By using several
important factors in its calculations, the
monitor helps reduce the cost of owning
your vehicle and reduces environmental
waste at the same time. This means you do not have to remember
to change the oil on a mileage-based
schedule. Your vehicle lets you know when
an oil change is due by displaying a
message in the information display.
The following table provides examples of
vehicle use and its impact on oil change
intervals. It is a guideline only. Actual oil
change intervals depend on several factors
and generally decrease with severity of
use.
450
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Scheduled Maintenance

Headlamp Adjusting
See: Adjusting the Headlamps.................... 260
Headlamp Exit Delay....................................84
Headlamp Removal See: Removing a Headlamp........................... 261
Headrest See: Head Restraints......................................... 123
Head Restraints.............................................123
Adjusting the Head Restraint......................... 124
Tilting Head Restraints .................................... 125
Heated Seats.................................................136 Front Seats............................................................ 136
Second Row Heated Seats............................. 136
Heated Steering Wheel
................................77
Heated Windows and Mirrors....................121
Heated Exterior Mirrors...................................... 121
Heated Rear Window......................................... 121
Heating See: Climate Control.......................................... 114
Hints on Controlling the Interior Climate...........................................................118
Defogging the Side Windows in Cold Weather............................................................. 120
General Hints........................................................ 118
Quickly Cooling the Interior............................. 119
Quickly Heating the Interior............................. 119
Recommended Settings for Cooling...........120
Recommended Settings for Heating...........119
Hints on Driving With Anti-Lock Brakes.............................................................176
Home Screen
.................................................377
Hood Lock See: Opening and Closing the Hood..........245
I
Ignition Switch...............................................147
In California (U.S. Only).............................228
Information Display Control........................77
Information Displays.....................................97 General Information............................................ 97
Information Messages
................................105
Adaptive Cruise Control.................................. 106
AdvanceTrac ™.................................................... 106
Alarm...................................................................... 106
Automatic Engine Shutdown........................ 106
AWD........................................................................\
. 107
Battery and Charging System........................ 107Blind Spot Information and Cross Traffic
Alert System................................................... 108
Brake System....................................................... 108
Collision Warning System............................... 109
Doors and Locks................................................. 109
Fuel........................................................................\
.. 109
Keys and Intelligent Access............................. 110
Maintenance......................................................... 110
MyKey........................................................................\
111
Park Aid..................................................................... 111
Power Steering...................................................... 112
Seats........................................................................\
. 112
Tire Pressure Monitoring System................... 112
Towing...................................................................... 113
Traction Control.................................................... 113
Transmission......................................................... 113
Installing Child Restraints............................19 Child Seats............................................................... 19
Using Lap and Shoulder Belts......................... 20
Using Lower Anchors and Tethers for CHildren (LATCH)............................................ 25
Using Tether Straps............................................. 27
Instrument Cluster
.........................................92
Instrument Lighting Dimmer.....................84
Instrument Panel Overview........................16
Interior Lamps
.................................................85
Second Row Reading Lamps.......................... 85
Third Row Dome Lamps................................... 86
Interior Mirror...................................................90 Auto-Dimming Mirror......................................... 90
Introduction.........................................................7
J
Jump Starting the Vehicle.........................223 Connecting the Jumper Cables.................... 223
Jump Starting...................................................... 224
Preparing Your Vehicle..................................... 223
Removing the Jumper Cables....................... 224
K
Keyless Entry...................................................66 SECURICODE™ Keyless Entry
Keypad................................................................ 66
Keyless Starting
.............................................147
Ignition Modes..................................................... 148
Keys and Remote Controls.........................52
499
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Index

SYNC™ 3 Troubleshooting.....................430
SYNC™ Applications and
Services........................................................344
911 Assist............................................................... 344
SYNC™ AppLink ™.....................................346
SYNC Mobile Apps............................................ 346
SYNC™............................................................326 General Information......................................... 326
SYNC™ Troubleshooting
..........................357
T
Technical Specifications See: Capacities and Specifications............302
The Better Business Bureau (BBB) Auto Line Program (U.S. Only)
.......................229
Tire Care..........................................................278 Glossary of Tire Terminology........................ 280
Information About Uniform Tire Quality Grading .............................................................. 278
Information Contained on the Tire Sidewall............................................................. 281
Temperature A B C............................................ 279
Traction AA A B C............................................... 279
Treadwear............................................................. 279
Tire Pressure Monitoring System...........293 Changing Tires With a Tire Pressure
Monitoring System....................................... 294
Understanding Your Tire Pressure Monitoring System ...................................... 294
Tires See: Wheels and Tires...................................... 276
Towing a Trailer.............................................210 Load Placement................................................. 210
Towing the Vehicle on Four Wheels...........................................................216
Emergency Towing............................................. 216
Recreational Towing.......................................... 216
Towing..............................................................210
Traction Control
.............................................177
Principle of Operation........................................ 177
Trailer Sway Control......................................211
Transmission Code Designation
............307
Transmission..................................................164
Transporting the Vehicle...........................225 U
Under Hood Overview - 3.5L
Duratec.........................................................246
Under Hood Overview - 3.5L Ecoboost™..................................................247
Universal Garage Door Opener...............138 HomeLink Wireless Control System...........138
USB Port..........................................................325
Using Adaptive Cruise Control................190 Automatic Cancellation................................... 193
Blocked Sensor................................................... 194
Canceling the Set Speed................................. 193
Changing the Set Speed.................................. 193
Detection Issues.................................................. 193
Following a Vehicle............................................. 191
Hilly Condition Usage........................................ 193
Overriding the Set Speed................................ 192
Resuming the Set Speed................................. 193
Setting the Adaptive Cruise Speed..............191
Setting the Gap Distance................................ 192
Switching Adaptive Cruise Control Off....................................................................... 193
Switching Adaptive Cruise Control On........................................................................\
190
Switching to Normal Cruise Control............195
System Not Available....................................... 194
Using All-Wheel Drive................................168 Driving In Special Conditions With
All-Wheel Drive (AWD)............................... 170
Operating AWD Vehicles With Mismatched Tires.................................................................... 169
Operating AWD Vehicles With Spare Tires.................................................................... 169
Using Cruise Control...................................189 Switching Cruise Control Off......................... 189
Switching Cruise Control On.......................... 189
Using MyKey With Remote Start Systems...........................................................61
Using Snow Chains
.....................................292
Using Stability Control................................179
Using SYNC™ With Your Media Player.............................................................347
Accessing Your Play Menu.............................. 352
Connecting Your Digital Media Player to the USB Port........................................................... 347
Media Menu Features...................................... 350
Media Voice Commands................................ 349
503
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Index

System Settings.................................................
354
What's Playing?................................................. 349
Using SYNC™ With Your Phone.............331 Accessing Features Through the Phone
Menu.................................................................. 335
Accessing Your Phone Settings................... 339
Making a Call....................................................... 334
Pairing a Cell Phone for the First Time.................................................................... 331
Pairing Subsequent Cell Phones.................332
Phone Options during an Active Call.........334
Phone Voice Commands................................ 332
Receiving Calls.................................................... 334
System Settings.................................................. 341
Text Messaging................................................... 337
Using Traction Control.................................177 Switching the System Off................................ 177
System Indicator Lights and Messages........................................................... 177
Using a Switch...................................................... 177
Using the Information Display Controls.............................................................. 177
Using Voice Recognition...........................328 Audio Voice Commands................................. 380
Climate Voice Commands.............................. 381
Initiating a Voice Session................................ 328
Mobile App Voice Commands...................... 384
Navigation Voice Commands....................... 383
Phone Voice Commands................................. 381
SiriusXM Traffic and Travel Link Voice Commands..................................................... 384
System Interaction and Feedback..............329
Voice Settings Commands............................ 385
Utilizing the Mediation/Arbitration Program (Canada Only)........................230
V
Vehicle Care...................................................268 General Information......................................... 268
Vehicle Certification Label.......................307
Vehicle Identification Number
...............306
Vehicle Storage.............................................273
Battery.................................................................... 274
Body........................................................................\
273
Brakes..................................................................... 274
Cooling system.................................................... 274
Engine..................................................................... 274Fuel system..........................................................
274
General................................................................... 273
Miscellaneous...................................................... 274
Removing Vehicle From Storage.................. 274
Tires........................................................................\
. 274
Ventilation See: Climate Control.......................................... 114
VIN See: Vehicle Identification Number...........306
Voice Control
....................................................77
W
Warning Lamps and Indicators.................93 Adaptive Cruise Control..................................... 93
Airbag Readiness................................................. 94
Anti-Lock Braking System................................ 94
Battery ...................................................................... 94
Brake System......................................................... 94
Charging System.................................................. 94
Cruise Control........................................................ 94
Directional Indicator........................................... 94
Door Ajar................................................................. 94
Engine Coolant Temperature.......................... 94
Engine Oil................................................................ 95
Fasten Seatbelt Warning Lamp..................... 95
Front Airbag........................................................... 95
Front Fog Lamps.................................................. 95
Head Up Display................................................... 95
High Beam.............................................................. 95
Liftgate Ajar............................................................ 95
Low Fuel Level....................................................... 95
Low Tire Pressure Warning............................... 95
Low Washer Fluid................................................. 95
Parking Lamps...................................................... 95
Powertrain Malfunction/Reduced Power.................................................................. 96
Service Engine Soon........................................... 96
Stability Control................................................... 96
Stability Control Off............................................ 96
Washer Fluid Check.....................................257
Washers See: Cleaning the Exterior.............................. 268
See: Wipers and Washers................................. 80
Waxing.............................................................270
Wheel Nuts See: Changing a Road Wheel....................... 296
504
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Index