Page 2 of 240
Seating and Safety Restraints 86
Seating 86
Safety restraints 90
Air bags 104
Child restraints 111
Driving 123
Starting 123
Brakes 127
Traction control 130
Air suspension 132
Transmission operation 133
Vehicle loading 138
Trailer towing 140
Recreational towing 143
Roadside Emergencies 144
Getting roadside assistance 144
Hazard flasher switch 145
Fuel pump shut-off switch 145
Fuses and relays 146
Changing tires 153
Jump starting 159
Wrecker towing 165
Customer Assistance 166
Reporting safety defects (U.S. only) 174
Cleaning 175
Table of Contents
2
Page 5 of 240

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 1,000 miles (1,600 km) of
new vehicle operation. Vary your speed to allow parts to adjust
themselves to other parts.
Drive your new vehicle at least 500 miles (800 km) before towing a
trailer.
Do not add friction modifier compounds or special break-in oils during
the first few thousand miles (kilometers) of operation, since these
additives may prevent piston ring seating. SeeEngine oilin the
Maintenance and Specificationschapter for more information on oil
usage.
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Introduction
5
Page 16 of 240
•Optional instrument cluster
Engine coolant temperature gauge:
•Standard instrument cluster
•Optional instrument cluster
Indicates engine coolant
temperature. At normal operating
temperature, the needle will be in
the normal range (between“H”and
“C”). If it enters the red section, the
engine is overheating. Stop the
vehicle as soon as safely possible,
switch off the engine and let the
engine cool, refer toWhat you
should know about fail-safe
coolingin theMaintenance and specificationschapter.
Never remove the coolant reservoir cap while the engine is
running or hot.
km/h
MPH
km S
TEMPH
C
N
O
R
M
H
C
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
16
Page 30 of 240

5. Line up the CD with the groove
of the disc holder. Ensure that the
label on the CD faces downwards.
6. Press the disc holder until it locks
securely into the magazine.
Ensure that the disc holder is
evenly inserted and at the same
level as the magazine (A). The unit
will not operate if the disc holder is
not inserted at the same level (B).
RADIO FREQUENCIES
AM and FM frequencies are established by the Federal Communications
Commission (FCC) and the Canadian Radio and Telecommunications
Commission (CRTC). Those frequencies are:
AM - 530, 540–1700, 1710 kHz
FM- 87.7, 87.9–107.7, 107.9 MHz
RADIO RECEPTION FACTORS
There are three factors that can affect radio reception:
•Distance/strength: The further you travel from an FM station, the
weaker the signal and the weaker the reception.
•Terrain: Hills, mountains, tall buildings, power lines, electric fences,
traffic lights and thunderstorms can interfere with your reception.
•Station overload: When you pass a broadcast tower, a stronger signal
may overtake a weaker one and play while the weak station frequency
is displayed.
CASSETTE/PLAYER CARE
Do:
•Use only cassettes that are 90 minutes long or less.
A
B
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Entertainment Systems
30
Page 33 of 240

1. Select NORM A/C.
2. Modulate the temperature control to maintain comfort.
3. Set the fan speed to HI.
4. Direct the outer instrument panel vents towards the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel.
Do not place objects on top of the instrument panel as these
objects may become projectiles in a collision or sudden stop.
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC)
SYSTEM (IF EQUIPPED)
1.OFF:Outside air is shut out and
the fan will not operate.
2.AUTOMATIC:Press
AUTOMATIC and select the desired
temperature using the temperature
controls. The system will automatically determine fan speed, airflow
location, and outside or recirculated air to heat or cool the vehicle to the
selected temperature. The fan speed will remain automatic unless the
thumbwheel is turned.
NORM A/CVENT FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFF
F
AUTO
1112310
987654
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
33
Page 35 of 240

•Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
To aid in side window defogging/demisting in cold weather:
1. Select NORM A/C.
2. Modulate the temperature control to maintain comfort.
3. Set the fan speed to HI.
4. Direct the outer instrument panel vents towards the side windows.
To increase airflow to the outer instrument panel vents, close the vents
located in the middle of the instrument panel.
Do not place objects on top of the instrument panel as these
objects may become projectiles in a collision or sudden stop.
REAR WINDOW DEFROSTER
The rear defroster control is located
on the instrument panel.
Press the rear defroster control to
clear the rear window of thin ice
and fog. A small LED will illuminate
when the rear defroster is activated.
The ignition must be in the ON position to operate the rear window
defroster.
The defroster turns off automatically after a predetermined amount of
time or when the ignition is turned to the OFF position. To manually
turn off the defroster, press the control again.
Activating the rear window defroster will also activate the heated mirrors
(if equipped). For more information refer toHeated outside mirrorsin
theDriver controls chapter.
Do not use razor blades or other sharp objects to clean the inside
of the rear window or to remove decals from the inside of the
rear window. This may cause damage to the heated grid lines and
will not be covered by your warranty.
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
35
Page 37 of 240

Always remember to turn on your headlamps at dusk or during
inclement weather. The Daytime Running Light (DRL) System
does not activate your tail lamps and generally may not provide
adequate lighting during these conditions. Failure to activate your
headlamps under these conditions may result in a collision.
High beams
Push the lever toward the
instrument panel to activate. Pull
the lever towards you to deactivate.
Flash to pass
Pull toward you slightly to activate
and release to deactivate.
PANEL DIMMER CONTROL
Use to adjust the brightness of the
instrument panel during headlight
and parklamp operation.
•Rotate the thumbwheel from left
to right to brighten the
instrument panel.
•Rotate the thumbwheel from right
to left to dim the instrument
panel.
Domelamp Control
The panel dimmer control also controls the domelamp operation.
•Rotate the thumbwheel fully to the right, past detent to activate the
domelamp.
•In order to turn off the domelamp, rotate the thumbwheel to the left.
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
37
Page 46 of 240

MULTI-FUNCTION LEVER
Windshield wiper:Rotate the end
of the control away from you to
increase the speed of the wipers;
rotate towards you to decrease the
speed of the wipers.
Windshield washer:Push the end
of the stalk:
•briefly: causes a single swipe of
the wipers without washer fluid.
•a quick push and hold: the wipers
will swipe three times with
washer fluid.
•a long push and hold: the wipers and washer fluid will be activated for
up to ten seconds.
Windshield wiper/washer features
The exterior lamps will turn on with the ignition on, Headlamp control in
the Autolamp position and the windshield wipers are turned on.
The lights will remain on for 30 seconds after the wipers are turned off.
Changing the wiper blades
To make changing the wiper blades easy, turn the ignition to ACC, then
turn the wipers on. When the wipers reach the vertical position, turn the
ignition to LOCK.
2004 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
Driver Controls
46