MANUAL HEATING AND AIR CONDITIONING SYSTEM
(IF EQUIPPED)
Fan speed control
Controls the volume of air circulated
in the vehicle.
Temperature control knob
Controls the temperature of the
airflow inside the vehicle.
Mode Selector Control
Controls the direction of the airflow
to the inside of the vehicle.
•Max A/C – Distributes recirculated air through the instrument panel
registers. The A/C compressor will only function if the outside
temperature is above approximately 2°C (36°F). Max A/C is noisier
than Norm A/C but more economical and efficient. This mode will
reduce undesirable odors from entering the vehicle.
•Norm A/C – Distributes outside air through the instrument panel
registers. The A/C compressor will only function if the outside
temperature is above approximately 2°C (36°F).
•Vent – Distributes outside air through the instrument panel registers.
The air cannot be cooled below the outside temperature.
•Off – Outside air is shut out and the fan will not operate. This mode
will reduce undesirable odors form entering the vehicle but may
increase the possibility of interior window fogging.
LO
HIO
F
F
MIX VENTF
L
O
O
R
M
A
X
A
/
C N
O
R
M
A
/
C
LO
HI
O
F
F
MIX VENTF
L
O
O
R
M
A
X
A
/
C N
O
R
M
A
/
C
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
Climate Controls
46
To aid in side window defogging/demisting in cold weather conditions:
1. Select Vent.
2. Set the temperature control to full heat.
3. Set the fan speed to full fan.
4. Direct the outer panel vents towards the side windows.
5. To increase airflow to the outer panel vents, close the central panel
vents.
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)
The EATC system will maintain a
selected temperature and
automatically control the fan speed
and airflow location.
Automatic operation
Press Automatic/AUTO and select the desired temperature. The system
will either heat or cool to achieve the selected temperature. The system
will automatically determine fan speed, airflow location and if outside air
or recirculated air is required.
When in automatic operation and weather conditions require heat, the
air will be sent to the floor ducts. However, until the engine has warmed,
the fan speed will operate at a low speed and airflow will be directed to
the windshield defroster ducts. Upon engine warm up, the system will
automatically direct airflow to the floor ducts and operate the required
fan speed to achieve the selected temperature.
If unusual conditions exist (i.e.-window fogging, etc.), the manual
overrides allow you to select airflow locations and the fan speed. To
return to automatic operation, press Automatic/AUTO.
NORM A/CVENT FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFF
FAUTO
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
48
moving. Due to locations, the outside temperature readings displayed on
the climate control system may not agree with those from the radio
station broadcasts.
Fan speed (
)
When in automatic operation, fan
speed operates as necessary to
achieve the selected temperature. If
desired, the fan speed can be
controlled manually through the use
of the fan speed control. To return
to automatic fan operation, press
Automatic/AUTO.
Manual override controls
The manual override controls allow
you to determine airflow location
and fan speed. To return to full
automatic control, press
Automatic/AUTO.
•Max A/C - Distributes recirculated air through the instrument panel
registers. A temperature of 16°C (60°F) will appear in the display
window until Automatic/AUTO, another manual override control, or
the temperature control has been selected. The A/C compressor will
only function if the outside temperature is above approximately 2°C
(36°F). Max A/C is noisier than Norm A/C, but more economic and
efficient. This mode will reduce undesirable odors from entering the
vehicle.
•Norm A/C- Distributes outside air through the instrument panel
registers. The A/C compressor will only function if the outside
temperature is above approximately 2°C (36°F). Norm A/C is more
quiet than Max A/C, but not as economic and efficient.
•Vent-Distributes outside air through the instrument panel registers.
The air cannot be cooled below the outside temperature.
•Floor- Distributes outside air through the floor ducts. The air cannot
be cooled below the outside temperature.
•Floor & Defrost - Distributes outside air through the windshield
defroster ducts, floor ducts and the side window demisters. The A/C
FLR • DEFDEF
HI
LO
AUTOMATICOFF
NORM A/CVENT FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFF
FAUTO
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
50
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 10 minutes or when the
ignition is turned to the OFF position. To manually turn off the defroster
before 10 minutes have passed, push 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.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
52
HEADLAMP CONTROL
Turns the lamps off.
Turns on the parking
lamps, instrument panel lamps,
license plate lamps and tail lamps.
Turns the headlamps on.
Autolamp control
The autolamp system provides light
sensitive automatic on-off control of
the exterior lights normally
controlled by the headlamp control.
The autolamp system also keeps the
lights on for a predetermined period
of time after the ignition switch is
turned to OFF.
•To turn autolamps on, rotate the
control counterclockwise to the
next position from OFF.
•To turn autolamps off, rotate the control clockwise past OFF to the
parking lamp position
, then back to OFF.
The headlamps will also turn on when the windshield wipers are
activated, after a 10–20 second delay.
Daytime running lamps (DRL) (if equipped)
Turns the lowbeam headlamps on with a reduced output. To activate:
•the key must be in the ON position,
•the parking brake released, and
•the headlamp control is in the OFF or Parking lamps position.
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.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
Lights
53
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.
AIMING THE HEADLAMPS
The headlamps on your vehicle are properly aimed at the assembly plant.
If your vehicle has been in an accident the alignment of your headlamps
should be checked by a qualified service technician.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
54
Function Trade Number
Headlamp 9007
Park, turn and sidemarker lamp (front) 3157 AK (amber)
Cornering lamp (front) 3156K
Tail, stop, turn and sidemarker lamp (rear) 3157K
Backup lamp 3156K
License plate lamp 168
High-mount brakelamp 912
Luggage compartment lamp 212-2
Dome lamp 906
Rear reading lamp 211-2
Map lamp 168
Illuminated visor mirror 168
Dual floorwell lamp 906
Glove compartment 168
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your dealer.
Replacing the interior bulbs
Check the operation of all bulbs frequently.
Replacing headlamp bulbs
To remove the headlamp bulb:
1. Make sure the headlamp control is in the OFF position, then open the
hood
2. Remove the three pin type retainers and the radiator sight shield.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
58
If your vehicle is equipped with a
floor-shift transmission, overdrive
can be deactivated by pressing the
Transmission Control Switch (TCS)
on the gearshift handle.
The O/D OFF indicator light will
illuminate on the instrument cluster.
The transmission will operate in all
gears except overdrive.
To return to normal overdrive mode,
press the Transmission Control Switch again. The O/D OFF will no longer
be illuminated.
When you shut off and re-start your vehicle, the transmission will
automatically return to normal
(Overdrive) mode.
For additional information about the gearshift lever and the transmission
control switch operation refer to theAutomatic Transmission
Operationsection of theDrivingchapter.
INTERIOR TRUNK CONTROL
The remote trunk release control is
located on the driver’s door trim
panel and can be operated at any
time.
You can render the switch
inoperable by locking the button
with your master key.
CELL PHONE USE
The use of Mobile Communications Equipment has become increasingly
important in the conduct of business and personal affairs. However,
drivers must not compromise their own or others’ safety when using
such equipment. Mobile Communications can enhance personal safety
and security when appropriately used, particularly in emergency
situations. Safety must be paramount when using mobile communications
equipment to avoid negating these benefits.
Mobile Communication Equipment includes, but is not limited to cellular
phones, pagers, portable email devices, in vehicle communications
systems, telematics devices and portable two-way radios.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
90