2004 LINCOLN NAVIGATOR oil pressure

or by applying the parking brake when the ignition is turned to the ON
position. If the brake system warning light does not illuminate at this
time, seek service immediately from your dealership. Illumination after
releasing the parking brake indicates low brake fluid level and the brake
system should be inspected immediately by your servicing dealership.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your dealer immediately.
Anti-lock brake system: If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately. Normal
braking is still functional unless the brake warning light also is
illuminated.
Air bag readiness: If this light fails
to illuminate when ignition is turned
to ON, continues to flash or remains
on, have the system serviced
immediately. A chime will also sound when a malfunction in the
supplemental restraint system has been detected.
Safety belt: Reminds you to fasten
your safety belt. A chime will also
sound to remind you to fasten your
safety belt.
Charging system: Illuminates when
the battery is not charging properly.
Engine oil pressure: Illuminates
when the oil pressure falls below the
normal range. Refer to Engine oil
in the Maintenance and
Specifications chapter. ABS
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Instrument Cluster
11

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 three 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. FUEL LEVEL
2. WASHER FLUID LEVEL
3. ENGINE TEMP
4. ADVANCETRAC
5. OIL PRESSURE
6. TIRE PRESSURE SYSTEM
7. BRAKE FLUID LEVEL
8. CHARGING SYSTEM
9. SUSPENSION
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 will reappear on the display every minute from the time of reset.
• They will reappear on the display ten minutes from the reset.
• They will not reappear until an ignition OFF-ON cycle has been
completed.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Driver Controls
144

This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Check park assist Warning displays when R (reverse)
gear is selected.
PRNDL error no park assist
AdvTrac ON Displays for 4 seconds
AdvTrac OFF
Power liftgate off
Door ajar Warning returns after 10 minutes
Liftgate ajar
Warning-tire very low
Low fuel level
Check charging system
Low brake fluid level
Low oil pressure
Check engine temperature
Reduced engine power
Stop engine safely
Check tire pressure Warning returns after the ignition key
is turned from OFF to ON.
Tire pressure system fault
Tire pressure sensor fault
Low washer fluid level
Check AdvTrac
AdvTrac OFF T/C ON
Check suspension
Suspension switched off
Check fuel cap
CHECK PARK ASSIST. Displayed when the transmission is in R
(Reverse).
PRNDL ERROR NO PARK ASSIST. Displayed when the transmission
is in R (Reverse) and the Backup Aid is disabled. Refer to Backup Aid
in this section to enable.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Driver Controls
145

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