Page 1 of 368
Introduction 4
Instrument Cluster 10Warning and control lights 10
Gauges 14
Entertainment Systems 16AM/FM stereo cassette with CD 16
AM/FM stereo with CD 21
Rear seat controls 25
Rear seat entertainment system 30
Navigation system 43
Climate Controls 94Rear passenger climate control 97
Rear window defroster 98
Lights 99Headlamps 99
Turn signal control 102
Bulb replacement 103
Driver Controls 112Windshield wiper/washer control 112
Power windows 119
Mirrors 122
Speed control 126
Message center 136
Locks and Security 153Keys 153
Locks 153
Anti-theft system 154
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Table of Contents
Table of Contents
1
Page 5 of 368

SAFETY AND ENVIRONMENT PROTECTION
Warning symbols in this guide
How can you reduce the risk of personal injury and prevent possible
damage to others, your vehicle and its equipment? In this guide, answers
to such questions are contained in comments highlighted by the warning
triangle symbol. These comments should be read and observed.
Warning symbols on your vehicle
When you see this symbol, it is
imperative that you consult the
relevant section of this guide before
touching or attempting adjustment
of any kind.
Protecting the environment
We must all play our part in
protecting the environment. Correct
vehicle usage and the authorized
disposal of waste cleaning and
lubrication materials are significant
steps towards this aim. Information in this respect is highlighted in this
guide with the tree symbol.
BREAKING-IN YOUR VEHICLE
Your vehicle does not need an extensive break-in. Try not to drive
continuously at the same speed for the first 1,600 km (1,000 miles) of
new vehicle operation. Vary your speed to allow parts to adjust
themselves to other parts.
Drive your new vehicle at least 800 km (500 miles) before towing a
trailer.
Do not add friction modifier compounds or special break-in oils during
the first few thousand kilometers (miles) of operation, since these
additives may prevent piston ring seating. See Engine oil in the
Maintenance and specifications chapter for more information on oil
usage.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Introduction
5
Page 8 of 368
These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert See Owner ’ s Guide
Fasten Safety Belt Air Bag-Front
Air Bag-Side Child Seat
Child Seat Installation
Warning Child Seat Lower
Anchor
Child Seat Tether
Anchor Brake System
Anti-Lock Brake System Brake Fluid -
Non-Petroleum Based
Traction Control AdvanceTrac
Master Lighting Switch Hazard Warning Flasher
Fog Lamps-Front Fuse Compartment
Fuel Pump Reset Windshield Wash/Wipe
Windshield
Defrost/Demist Rear Window
Defrost/Demist
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Introduction
8
Page 10 of 368

WARNING LIGHTS AND CHIMES
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle ’ s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, have the
respective system inspected immediately.
Service engine soon: The
indicator light illuminates when the
ignition is first turned to the ON
position to check the bulb. Solid
illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer to On
board diagnostics (OBD-II) in the Maintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Brake system warning light: To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position
when the engine is not running, or in a position between ON and START,
P!BRAKE
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Instrument Cluster
Instrument Cluster
10
Page 11 of 368

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
Page 12 of 368

Engine coolant temperature:
Illuminates when the engine coolant
temperature is high. Stop the
vehicle as soon as safely possible, switch off the engine and let it cool.
Refer to Engine coolant in the Maintenance and Specifications
chapter.
Never remove the coolant recovery cap while the engine is
running or hot.
Low tire warning: Illuminates
when the low tire warning system is
enabled. If the light remains on
while driving, the tire pressure
should be checked, refer to Low
tire warning in the Maintenance and Specifications chapter. If this
light fails to illuminate when ignition is turned to ON, continues to flash
or remains on, have the system serviced immediately.
Warning Light display Customer Action
Warning light remains on • Check your tire pressure and
ensure your tires are properly
inflated.
• If your tires are inflated to the
manufacturers recommended air
pressure and the light remains on,
please have the system inspected
immediately by your servicing
dealership.
Warning light flashing (flashes
for 20 seconds either at start
up or while driving) • Your spare tire is in use. Repair the
road wheel to restore system function.
• If your tires are inflated to the
recommended air pressure, and your
spare tire is not in use, please have
the system inspected immediately by
your servicing dealership.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Instrument Cluster
12
Page 13 of 368

O/D off: Illuminates when the
overdrive function of the
transmission has been turned off,
refer to the Driving chapter. If the
light flashes steadily or does not illuminate, have the transmission
serviced soon, or damage may occur.
AdvanceTrac (if equipped):
Illuminates when the AdvanceTrac
system is active. If the light remains
on, have the system serviced
immediately.
Speed control: Illuminates when
the speed control is activated. Turns
off when the speed control system
is deactivated.
Four wheel drive low (if
equipped): Illuminates when
four-wheel drive low is engaged.
Four wheel drive high (if
equipped): Illuminates when
four-wheel drive high is engaged.
Turn signal: Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams: Illuminates when the
high beam headlamps are turned on.
Key-in-ignition warning chime: Sounds when the key is left in the
ignition in the OFF/LOCK or ACC position and the driver ’ s door is
opened.
Headlamps on warning chime: Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver ’ s door is opened.
Door ajar warning chime: Sounds when any door, liftgate or the
liftgate glass is opened (or not fully closed). 4x4
LOW
4x4
HIGH
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Instrument Cluster
13
Page 15 of 368

Trip odometer: Registers the
kilometers (miles) of individual
journeys. Press and release the
message center INFO button until
“ TRIP ” appears in the display (this
represents the trip mode). Press
and hold the RESET button for
three seconds to reset.
Tachometer: Indicates the engine
speed in revolutions per minute.
Driving with your tachometer
pointer continuously at the top of
the scale may damage the engine.
Fuel gauge: Indicates
approximately how much fuel is left
in the fuel tank (when the ignition
is in the ON position). The fuel
gauge may vary slightly when the
vehicle is in motion or on a grade.
The ignition should be in the OFF
position while the vehicle is being
refueled. When the gauge first
indicates empty, there is a small amount of reserve fuel in the tank.
When refueling the vehicle from empty indication, the amount of fuel
that can be added will be less than the advertised capacity due to the
reserve fuel.
The FUEL icon and arrow indicates which side of the vehicle the fuel
filler door is located.
Refer to Filling the tank in the Maintenance and Specifications
chapter for more information.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Instrument Cluster
15