2008 LINCOLN NAVIGATOR tire pressure

Seating and Safety Restraints 142
Seating 142
Safety restraints 157
Airbags 171
Child restraints 180
Tires, Wheels and Loading 195
Tire information 197
Tire inflation 199
Tire Pressure Monitoring System (TPMS) 212
Vehicle loading 217
Trailer towing 223
Recreational towing 231
Driving 232
Starting 232
Brakes 237
Traction Control™/AdvanceTrac
240
Air suspension 245
Transmission operation 247
Roadside Emergencies 265
Getting roadside assistance 265
Hazard flasher switch 266
Fuel pump shut-off switch 267
Fuses and relays 268
Changing tires 275
Lug nut torque 283
Jump starting 284
Wrecker towing 291
Customer Assistance 293
Reporting safety defects (U.S. only) 299
Reporting safety defects (Canada only) 300
Cleaning 301
Table of Contents
2
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)

Vehicle Symbol Glossary
Power Windows
Front/Rear
Power Window Lockout
Child Safety Door
Lock/UnlockInterior Luggage
Compartment Release
Panic AlarmEngine Oil
Engine CoolantEngine Coolant
Temperature
Do Not Open When HotBattery
Avoid Smoking, Flames,
or SparksBattery Acid
Explosive GasFan Warning
Power Steering FluidMaintain Correct Fluid
LevelMAX
MIN
Service Engine SoonEngine Air Filter
Passenger Compartment
Air FilterJack
Check Fuel CapLow Tire Pressure
Warning
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
11

Low tire pressure warning:
Illuminates when your tire pressure
is low. If the light remains ON at
start up or while driving, the tire
pressure should be checked. Refer
toInflating Your Tiresin theTires, Wheels and Loadingchapter.
When the ignition is first turned to ON, the light will illuminate for 3
seconds to ensure the bulb is working. If the light does not turn ON or
begins to flash, have the system inspected by your authorized dealer. For
more information on this system, refer toUnderstanding Your Tire
Pressure Monitoring Systemin theTires, Wheels and Loading
chapter.
Low fuel (RTT) (if equipped):
Displays when the fuel level in the
fuel tank is at or near empty (refer
toFuel gaugein this chapter).
Check fuel cap (RTT) (if
equipped):Displays when the fuel
cap may not be properly installed.
Continued driving with this light on
may cause the Service engine soon
warning light to come on. Refer to
Fuel filler capin theMaintenance and Specificationschapter.
Low washer fluid (RTT) (if
equipped):Displays when the
windshield washer fluid is low.
O/D off:Illuminates when the
overdrive function of the
transmission has been turned off,
refer to theDrivingchapter. If the
light flashes steadily or does not illuminate, have the transmission
serviced soon, or damage may occur.
AdvanceTrac
(RTT) (if
equipped):Displays when the
AdvanceTrac
with RSC system is
active. If the light remains on, have
the system serviced immediately by
your authorized dealer.
O/D
OFF
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
15

System check
Selecting this function from the
SETUP menu causes the message
center to cycle through each of the
systems being monitored. For each
of the monitored systems, the
message center will indicate either
an OK message or a warning message for two seconds.
Pressing the RESET control cycles the message center through each of
the systems being monitored.
The sequence of the system check report and how it appears in the
message center is as follows:
1. OIL LIFE
2. CHARGING SYSTEM
3. WASHER FLUID LEVEL
4. DOOR STATUS
5. LIFTGATE/GLASS
6. BRAKE FLUID LEVEL
7. TIRE PRESSURE SYSTEM (if equipped)
8. AIR SUSPENSION SYSTEM
9. FUEL LEVEL
System warnings
System warnings alert you to possible problems or malfunctions in your
vehicle’s operating systems.
In the event of a multiple warning situation, the message center will
cycle the display to show all warnings by displaying each one for 4
seconds.
The message center will display the last selected feature if there are no
more warning messages. This allows you to use the full functionality of
the message center after you acknowledge the warning by pressing the
RESET control and clearing the warning message.
Warning messages that have been reset are divided into three categories:
•They cannot be cleared until the condition is corrected.
•They will reappear on the display ten minutes from the reset.
•They will not reappear until an ignition OFF-ON cycle has been
completed.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
114

This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Driver door ajar Warning can be reset. Will return if
reset and warning is cleared and set
again within the same ignition cycle.
Will return on ignition cycle. Passenger door ajar
Rear left door ajar
Rear right door ajar
Door ajar
Liftgate/glass ajar
Check charging system
Tire pressure sensor fault (if
equipped)
Low tire pressure (if equipped)
Tire pressure monitor fault (if
equipped)
4x4 shift in progress (if
equipped)
Air suspension OFF
Brake fluid level low Warning can be reset. Will NOT return
if reset and warning is cleared and set
again within the same ignition cycle.
Will return on ignition cycle. Check park brake
Washer fluid level low
Oil change required
Engine oil change soon
Check air suspension
Check brake system Warning can be reset. Will return after
10 minutes. If within the 10 minutes,
the condition is cleared and set again,
it will not return until the initial 10
minutes is up. Will return on ignition
cycle. XXX miles (km) to empty fuel
level low
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
115

Warning display Status
Park brake engaged Warning can be reset. Will return after
10 minutes. If within the 10 minutes,
the condition is cleared and set again,
it will return immediately. Will return
on ignition cycle.
Press reset to clear This can be reset, it will remain on
the display for 4 seconds.
Park aid OFF (if
equipped)This cannot be reset. Pressing reset
will change the option from ON to
OFF. It appears on the display when
the vehicle is in reverse and will not
go away until the vehicle is no longer
in reverse.
DRIVER DOOR AJAR.Displayed when the driver door is not
completely closed.
PASSENGER DOOR AJAR.Displayed when the passenger door is not
completely closed.
REAR LEFT DOOR AJAR.Displayed when the rear left door is not
completely closed.
REAR RIGHT DOOR AJAR.Displayed when the rear right door is not
completely closed.
DOOR AJAR.Displayed when there is an error with the door ajar
system.
LIFTGATE/GLASS AJAR.Displayed when the liftgate or liftgate glass
is not completely closed.
LOW TIRE PRESSURE.Displayed when one or more tires on your
vehicle have low tire pressure. Refer toInflating Your Tiresin the
Tires, Wheels and Loadingchapter.
TIRE PRESSURE MONITOR FAULT.Displayed when the Tire
Pressure Monitoring System is malfunctioning. If the warning stays on or
continues to come on, have the system inspected by your authorized
dealer.
TIRE PRESSURE SENSOR FAULT.Displayed when a tire pressure
sensor is malfunctioning, or your spare tire is in use. For more
information on how the system operates under these conditions, refer to
Understanding Your Tire Pressure Monitoring Systemin theTires,
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
116

Glossary of tire terminology
•Tire label:A label showing the OE (Original Equipment) tire sizes,
recommended inflation pressure and the maximum weight the vehicle
can carry.
•Tire Identification Number (TIN):A number on the sidewall of
each tire providing information about the tire brand and
manufacturing plant, tire size and date of manufacture. Also referred
to as DOT code.
•Inflation pressure:A measure of the amount of air in a tire.
•Standard load:A class of P-metric or Metric tires designed to carry a
maximum load at 35 psi [37 psi (2.5 bar) for Metric tires]. Increasing
the inflation pressure beyond this pressure will not increase the tire’s
load carrying capability.
•Extra load:A class of P-metric or Metric tires designed to carry a
heavier maximum load at 41 psi [43 psi (2.9 bar) for Metric tires].
Increasing the inflation pressure beyond this pressure will not increase
the tire’s load carrying capability.
•kPa:Kilopascal, a metric unit of air pressure.
•PSI:Pounds per square inch, a standard unit of air pressure.
•Cold inflation pressure:The tire pressure when the vehicle has
been stationary and out of direct sunlight for an hour or more and
prior to the vehicle being driven for 1 mile (1.6 km).
•Recommended inflation pressure:The cold inflation pressure found
on the Safety Compliance Certification Label or Tire Label located on
the B-Pillar or the edge of the driver’s door.
•B-pillar:The structural member at the side of the vehicle behind the
front door.
•Bead area of the tire:Area of the tire next to the rim.
•Sidewall of the tire:Area between the bead area and the tread.
•Tread area of the tire:Area of the perimeter of the tire that
contacts the road when mounted on the vehicle.
•Rim:The metal support (wheel) for a tire or a tire and tube assembly
upon which the tire beads are seated.
INFLATING YOUR TIRES
Safe operation of your vehicle requires that your tires are properly
inflated. Remember that a tire can lose up to half of its air pressure
without appearing flat.
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
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Every day before you drive, check your tires. If one looks lower than the
others, use a tire gauge to check pressure of all tires and adjust if
required.
At least once a month and before long trips, inspect each tire and check
the tire pressure with a tire gauge (including spare, if equipped). Inflate
all tires to the inflation pressure recommended by Ford Motor Company.
Use a tire gauge to check the tire inflation pressure, including the spare
(if equipped), at least monthly and before long trips. You are strongly
urged to buy a reliable tire pressure gauge, as automatic service station
gauges may be inaccurate. Ford recommends the use of a digital or
dial-type tire pressure gauge rather than a stick-type tire pressure gauge.
Use the recommended cold inflation pressure for optimum tire
performance and wear. Under-inflation or over-inflation may cause
uneven treadwear patterns.
Under-inflation is the most common cause of tire failures and
may result in severe tire cracking, tread separation orblowout,
with unexpected loss of vehicle control and increased risk of injury.
Under-inflation increases sidewall flexing and rolling resistance,
resulting in heat buildup and internal damage to the tire. It also may
result in unnecessary tire stress, irregular wear, loss of vehicle control
and accidents. A tire can lose up to half of its air pressure and not
appear to be flat!
Always inflate your tires to the Ford recommended inflation pressure
even if it is less than the maximum inflation pressure information found
on the tire. The Ford recommended tire inflation pressure is found on
the Safety Compliance Certification Label or Tire Label which is located
on the B-Pillar or the edge of the driver’s door. Failure to follow the tire
pressure recommendations can cause uneven treadwear patterns and
adversely affect the way your vehicle handles.
Maximum Permissible Inflation Pressureis the tire manufacturer’s
maximum permissible pressure and/or the pressure at which the
maximum load can be carried by the tire. This pressure is normally
higher than the manufacturer’s recommended cold inflation pressure
which can be found on the Safety Compliance Certification Label or Tire
Label which is located on the B-Pillar or the edge of the driver’s door.
The cold inflation pressure should never be set lower than the
recommended pressure on the Safety Compliance Certification Label or
Tire Label.
When weather temperature changes occur, tire inflation pressures also
change. A 10°F (6°C) temperature drop can cause a corresponding drop
2008 Navigator(nav)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
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