2004 LINCOLN NAVIGATOR display

CHECK CHARGING SYSTEM. Displayed when the electrical system is
not maintaining proper voltage. If you are operating electrical accessories
when the engine is idling at a low speed, turn off as many of the
electrical loads as soon as possible. If the warning stays on or comes on
when the engine is operating at normal speeds, have the electrical
system checked as soon as possible.
LOW BRAKE FLUID LEVEL. Indicates the brake fluid level is low and
the brake system should be inspected immediately. Refer to Checking
and adding brake fluid in the Maintenance and specifications
chapter.
LOW OIL PRESSURE. Displayed when the engine oil pressure is low. If
this warning message is displayed, check the level of the engine oil.
Refer to Engine oil in the Maintenance and specifications chapter for
information about adding engine oil. If the oil level is OK and this
warning persists, shut down the engine immediately and contact your
dealership for service.
LOW WASHER FLUID LEVEL. Indicates the washer fluid reservoir is
less than one quarter full. Check the washer fluid level. Refer to
Windshield washer fluid in the Maintenance and specifications
chapter.
CHECK ADVTRAC. Displayed when the AdvanceTrac
system is not
operating properly. If this message is displayed on the message center
the AdvanceTrac
system may be partially operable. If this warning
stays on while the engine is running, contact your dealer for service as
soon as possible. For further information, refer to AdvanceTrac

stability enhancement system in the Driving chapter.
ADVTRAC OFF T/C ON. Displayed on 4x4 vehicles only when 4x4 Low
Range is selected. In this mode, the stability enhancement portion of the
AdvanceTrac
is disabled, but the traction enhancement feature remains
enabled. For further information, refer to AdvanceTrac
stability
enhancement system in the Driving chapter.
CHECK SUSPENSION. Displayed when the air suspension system is
not operating properly. If this message is displayed while driving, pull off
the road as soon as safely possible. For more information, refer to Air
suspension in the Driving chapter.
SUSPENSION SWITCHED OFF. Displayed when the air suspension
switch is in the OFF position. For more information, refer to Air
suspension in the Driving chapter.
CHECK FUEL CAP. Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer to Fuel
filler cap in the Maintenance and specifications chapter.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Driver Controls
147

The Roll Stability Control button
allows the driver to control the
availability of the Roll Stability
Control system. The Roll Stability
Control system status is indicated
by a warning indicator light with a
“ sliding car ” icon in the instrument cluster that will flash when the
system is activated and an indicator light in the control button that will
illuminate when the system is turned off. In vehicles with a message
center, the message “ Roll Stability Control OFF ” will be displayed.
If a failure is detected in the Roll Stability Control system, the warning
indicator light in the instrument cluster will stay on. If the warning
indicator light in the instrument cluster remains on while the engine is
running, have the system serviced immediately.
Pressing the button once will disable the Roll Stability Control stability
enhancement and the engine power reduction portion of the traction
enhancement feature; the brake portion of the traction enhancement
feature will still function normally. Pressing and holding the button for
more than five seconds will disable the Roll Stability Control stability
enhancement and traction enhancement feature. If the vehicle is stuck
in snow or mud or when driving in deep sand, switching off the Roll
Stability Control system may be beneficial so the wheels are allowed to
spin. If your vehicle seems to lose engine power while driving in deep
sand or very deep snow, switching off the Roll Stability Control stability
enhancement feature will restore full engine power and will enhance
momentum through the obstacle.
Some drivers may notice a slight movement of the brake pedal when the
Roll Stability Control performs a system self-check. During Roll Stability
Control operation you may experience the following:
• A rumble or grinding noise
• A slight deceleration of the vehicle
• The Roll Stability Control indicator light will flash
• If your foot is on the brake pedal, you will feel a vibration in the
pedal.
• If the driving condition is severe and your foot is not on the brake, the
brake pedal will move to apply higher brake forces. You may also hear
a whoosh of air from under the instrument panel during this severe
condition.
All these conditions are normal during Roll Stability Control operation. O
F
F
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Driving
230

(Overdrive) can be deactivated
by pressing the transmission control
switch (TCS) on the end of the
gearshift lever.
The transmission control indicator
light (TCIL) will illuminate in the
instrument cluster.
Drive – Not shown on the display. Activate by pressing the transmission
control switch (TCS) on the end of the gearshift lever with the gearshift
in the position. The TCIL will illuminate in the instrument cluster.
Transmission operates in gears one through three. (Drive) provides
more engine braking than (Overdrive) and is useful when:
• driving with a heavy load.
• towing a trailer up or down steep hills.
• additional engine downhill braking is desired. If towing a trailer, refer
to Driving while you tow in the Trailer towing section.
To return to
(Overdrive) mode, press the transmission control switch
(TCS). The TCIL will no longer be illuminated.
Each time the vehicle is started, the transmission will automatically
return to normal overdrive mode.
Every time the vehicle is shut off and restarted, you must press the
transmission control switch to cancel overdrive operation if driving in
overdrive is not desired. P
R
N
D
2
1
O
D
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Driving
236

Fuel Filler Cap
Your fuel tank filler cap has an indexed design with a 1/8 turn on/off
feature.
When fueling your vehicle:
1. Turn the engine off.
2. Carefully turn the filler cap counterclockwise 1/8 of a turn until it
stops.
3. Pull to remove the cap from the fuel filler pipe.
4. To install the cap, align the tabs on the cap with the notches on the
filler pipe.
5. Turn the filler cap clockwise 1/8 of a turn until it stops.
“ CHECK/TIGHTEN FUEL CAP ” will display in the message center when
the fuel filler cap is not properly installed. Proper fuel filler cap
installation is checked automatically as the vehicle is driven, but not until
after some fuel is used (fuel gauge drops below full). Once the fuel filler
cap is properly secured, “ CHECK/TIGHTEN FUEL CAP ” will turn off
after a short period of driving.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive pressure or
vacuum in the fuel tank may damage the fuel system or cause
the fuel cap to disengage in a collision, which may result in possible
personal injury.
Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
Do not use fuel containing methanol. It can damage critical fuel system
components.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Maintenance and Specifications
321

climate control ........................171
memory seat ...................158, 171
SecuriLock passive
anti-theft system ...............166 – 167
Servicing your vehicle ..............305
Snowplowing .................................7
Spare tire (see Changing the
Tire) ...........................................275
Spark plugs,
specifications .....................348, 354
Special notice
utility-type vehicles ....................7
Specification chart,
lubricants ...........................351, 354
Speed control ............................126
Starting your vehicle ........217 – 219
jump starting ..........................282
Steering
speed sensitive .......................224
Steering wheel
controls ....................................129
T
Tire Pressure Monitoring
System (TPMS)
Driving .....................................247
Roadside Emergencies ...........275
Warning Displays ......................14
Tires ...........................275, 333 – 334
changing ..................275 – 276, 281
snow tires and chains ............348
tire grades ...............................334
treadwear ................................333
Tonneau cover ...........................117
Towing .......................................254 recreational towing .................261
trailer towing ..........................254
wrecker ....................................288
Transmission .............................231
brake-shift interlock (BSI) ....231
fluid, checking and adding
(automatic) .............................330
fluid, refill capacities ..............349
lubricant
specifications ..................351, 354
Trunk .................................156 – 157
Turn signal ................................102
V
Vehicle dimensions ...................354
Vehicle Identification Number
(VIN) ..........................................356
Vehicle loading ..........................252
Ventilating your vehicle ...........221
W
Warning lights (see Lights) .......10
Washer fluid ..............................308
Water, Driving through .............251
Windows
power .......................................119
rear wiper/washer ...................113
Windshield washer fluid and
wipers ........................................112
checking and adding fluid .....308
liftgate reservoir .....................308
replacing wiper blades ...........113
Wrecker towing .........................288
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Index
366