Page 151 of 368

Resetting the power liftgate:
The power liftgate may not operate under these conditions. If any of
these conditions occur, the power liftgate must be reset.
• a low voltage or dead battery
• disconnected battery
• the liftgate has been left open, or in the partially latched position, for
more than six (6) hours.
To reset the power liftgate:
1. Manually close and fully latch the liftgate.
2. Power open the liftgate by using the keyfob or overhead console
button.
3. Once the liftgate is fully open, close the liftgate using the keyfob or
overhead console button.
Note: If the power liftgate system is turned in the message
center, the system can not be activated with any switches or with the
liftgate handle. The system will need to be turned for any power
operation to occur.
Liftgate ajar signal
If the liftgate or liftgate glass are not fully latched, you will receive a
“ LIFTGATE AJAR ” message on the instrument panel. If you see this
message, check both the liftgate glass and liftgate door to insure they are
fully latched.
Make sure the liftgate is closed to prevent exhaust fumes from
being drawn into the vehicle. If you must drive with the liftgate
open, keep the vents open so outside air comes into the vehicle.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Driver Controls
151
Page 160 of 368

Replacing the battery
The remote entry transmitter uses one coin type three-volt lithium
battery CR2032 or equivalent. The typical operating range for your
remote entry transmitter is approximately 10 meters (33 feet). A
decrease in the operating range could be caused by:
• weather conditions,
• nearby radio towers,
• structures around the vehicle and
• other vehicles parked next to the vehicle.
To replace the battery:
1. Twist a thin coin between the two
halves of the remote entry
transmitter near the key ring. DO
NOT TAKE THE RUBBER COVER
AND CIRCUIT BOARD OFF THE
FRONT HOUSING OF THE
REMOTE ENTRY TRANSMITTER.
2. Do not wipe off any grease on the
battery terminals on the back
surface of the circuit board.
3. Remove the old battery.
4. Insert the new battery. Refer to the diagram inside the remote entry
transmitter for the correct orientation of the battery. Press the battery
down to ensure that the battery is fully seated in the battery housing
cavity.
5. Snap the two halves back together.
Note: Replacement of the battery will not cause the remote transmitter
to become deprogrammed from your vehicle. The remote transmitter
should operate normally after battery replacement.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Locks and Security
160
Page 162 of 368

Programming remote transmitters
It is necessary to have all (maximum of four — original and/or new) of
your remote transmitters available prior to beginning this procedure.
To program the transmitters yourself:
• Unlock all doors using the power
door lock/unlock control. Insert a
key in the ignition and turn from
1 (LOCK) to 3 (ON) and cycle
between 1 (LOCK) and 3 (ON)
eight times in rapid succession
(within 10 seconds) with the
eighth turn ending in the 3 (ON)
position. The locks will cycle
between unlocked and locked to
confirm that the programming mode has been entered.
• Within 20 seconds, program a remote transmitter by pressing any
button on a transmitter. Note: If more than 20 seconds pass before
pressing a remote transmitter button, the programming mode will exit
and the procedure will have to be repeated.
• Repeat the previous step to program additional remote transmitters.
• When you have completed programming the remote transmitters, turn
the ignition to 1 (LOCK) or wait 20 seconds.
Illuminated entry
The lamps illuminate when the remote entry system is used to unlock
the door(s).
The system automatically turns off after 25 seconds or when the ignition
is turned to the ON or ACC position. The dome lamp control must not
be set to the OFF position for the illuminated entry system to operate.
The inside lights will not turn off if:
• they have been turned on with the dimmer control, or
• any door is open.
The battery saver will shut off the interior lamps 30 minutes after the
ignition has been turned to the OFF position.
Autolock
This feature automatically locks all vehicle doors when:
• all doors, liftgate and liftgate window are closed, 43
2
1
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Locks and Security
162
Page 183 of 368

Push the top of the control button
to return the seatback to its original
position.
The power folding seats are designed to stall within 1 – 10 seconds
of encountering an obstruction when opening or closing. Should
this occur, remove the obstruction and wait approximately 1 – 4
minutes for the seat motor to reset.
The power fold down seats will operate for 30 minutes after the
ignition switch is in Off. The transmission must be in P (park),
and the liftgate, or liftgate glass must be open. Similar to the
Battery Saver feature, the power 3rd row seat will be disabled 30
minutes after turning the vehicle off. If the power 3rd row seat is
disabled after 30 minutes, the seat can be enabled by opening any
door, pressing the unlock key on the key fob, pressing any keyless
keypad button, or turning the ignition key.
SAFETY RESTRAINTS
Personal Safety System
The Personal Safety System provides an improved overall level of frontal
crash protection to front seat occupants and is designed to help further
reduce the risk of air bag-related injuries. The system is able to analyze
different occupant conditions and crash severity before activating the
appropriate safety devices to help better protect a range of occupants in
a variety of frontal crash situations.
Your vehicle ’ s Personal Safety System consists of:
• Driver and passenger dual-stage air bag supplemental restraints.
• Front safety belts with pretensioners, energy management retractors,
and safety belt usage sensors.
• Driver ’ s seat position sensor.
• Front crash severity sensor.
• Restraints Control Module (RCM).
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Seating and Safety Restraints
183
Page 305 of 368

SERVICE RECOMMENDATIONS
To help you service your vehicle:
• We highlight do-it-yourself items in the engine compartment for easy
location.
• We provide a scheduled maintenance guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the necessary parts and service. Check your Warranty Guide/Owner
Information Guide to find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
• Do not work on a hot engine.
• Make sure that nothing gets caught in moving parts.
• Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
• Keep all open flames and other lit material away from the battery and
all fuel related parts.
Working with the engine off
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
Note: Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Maintenance and Specifications
Maintenance and Specifications
305