
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:TheService
engine soonindicator 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 theMaintenance 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.
SERVICE
ENGINE
SOON
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
Instrument Cluster
10

TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
INTERIOR LAMPS
Map/Courtesy lamps
To turn on the map lamps, press the
map lamp control.
Rear courtesy/reading lamps
The courtesy lamp lights when:
•any door is opened.
•any of the remote entry controls
are pressed and the ignition is
OFF.
With the ignition key in the ACC or
ON position, the reading lamp can
be turned on by pressing the rocker
control.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
78

BULBS
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Using the right bulbs
Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized“D.O.T.”for North America and an
“E”for Europe to assure lamp performance, light brightness and pattern
and safe visibility. The correct bulbs will not damage the lamp assembly
or void the lamp assembly warranty and will provide quality bulb burn
time.
Function Trade Number
Headlamp (Hi beam) 9005
Headlamp (Lo beam)* H7
Park and turn lamp (front) 3457 AK
Sidemarker (front) 168
Backup lamp 3156 K
Stop, tail, turn and sidemarker lamp (rear) 3157 K
Cornering lamp 3156 K
License plate lamp 168
High-mount brakelamp - Stop** 20 (LEDS)
High-mount brakelamp - Backup Aid** 6 (LEDS)
Luggage compartment lamp 212-2
Map lamp 578
Visor vanity lamp 168
Door courtesy lamp 904
Glove compartment 194
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your dealer.
* For vehicles with HID lamps, see your dealer for service.
**When replacing the center high mount stop lamp, see your dealer for
replacement bulbs.
Replacing the interior bulbs
Check the operation of all bulbs frequently.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
79

To reprogram the remote entry
transmitters:
1. Ensure the vehicle is
electronically unlocked.
2. Put the key in the ignition.
3. Turn the key from the 2 (LOCK)
position to 3 (OFF).
4. Cycle, four times, rapidly (within
10 seconds) between the 3 (OFF) position and 4 (ON).Note:The
fourth turn must end in the 4 (ON) position.
5. The doors will lock, then unlock, to confirm that the programming
mode has been activated.
6. Press any button on the remote entry transmitter.
7. The doors will lock, then unlock, to confirm that this remote entry
transmitter has been programmed.
8. Repeat Step 6 to program each additional remote entry transmitter.
9. Turn the ignition to the 3 (OFF) position after you have finished
programming all of the remote entry transmitters.Note:After 20
seconds have passed, you will automatically exit the programming mode.
10. The doors will lock, then unlock, to confirm that the programming
mode has been exited.
Illuminated entry
The interior lamps illuminate when the remote entry system is used to
unlock the door(s) or sound the personal alarm.
The illuminated entry system will turn off the interior lights if:
•the ignition switch is turned to the ON or ACC positions, or
•the remote transmitter lock control is pressed, or
•after 25 seconds of illumination.
The dimmer panel control mustnotbe 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
last door is closed, or after 10 minutes if the last door is left open.
3
1
2
5
4
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
119

recommendations ...................228
refill capacities ........................256
specifications ..................257, 259
Exhaust fumes ..........................169
F
Fail safe cooling ........................235
Floor mats .................................112
Fluid capacities .........................256
Foglamps .....................................75
Fuel ............................................237
calculating fuel
economy ....................89, 106, 241
cap ...........................................239
capacity ...................................256
choosing the right fuel ...........240
comparisons with EPA fuel
economy estimates .................244
detergent in fuel .....................241
filling your vehicle
with fuel ..................237, 239, 241
filter, specifications ........241, 255
fuel filler door override ..........110
fuel filler door release ............110
fuel pump shut-off switch .....186
improving fuel economy ........241
octane rating ...................240, 259
quality ......................................240
running out of fuel .................241
safety information relating
to automotive fuels ................237
Fuses ..................................187–188
G
Gas cap (see Fuel cap) ............239
Gas mileage
(see Fuel economy) .................241
Gauges .........................................15GAWR (Gross Axle
Weight Rating) ..........................180
definition .................................180
driving with a heavy load ......180
location ....................................180
GVWR (Gross Vehicle
Weight Rating) ..........................180
calculating ...............................180
definition .................................180
driving with a heavy load ......180
location ....................................180
H
Hazard flashers .........................186
Head restraints .........................128
Headlamps ...................................74
aiming ........................................76
autolamp system .......................74
bulb specifications ....................79
daytime running lights .............75
flash to pass ..............................76
high beam .................................75
replacing bulbs .........................80
turning on and off ....................74
HomeLink universal
transceiver (see
Garage door opener) ..................90
Hood ..........................................223
I
Ignition ...............................166, 259
Infant seats
(see Safety seats) .....................158
Inspection/maintenance
(I/M) testing ..............................246
Instrument panel
cleaning ...................................218
cluster ........................................10
lighting up panel and interior .76
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
268

J
Jack ............................................194
positioning ...............................194
storage .....................................194
Jump-starting your vehicle ......199
K
Keyless entry system ...............121
Keys
positions of the ignition .........166
L
Lamps
autolamp system .......................74
bulb replacement
specifications chart ..................79
cargo lamps ...............................76
daytime running light ...............75
fog lamps ...................................75
headlamps .................................74
headlamps, flash to pass ..........76
instrument panel, dimming .....76
interior lamps .....................78–79
replacing bulbs ...................79–82
Lane change indicator
(see Turn signal) ........................78
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........170
speed control ..........................102
Load limits .................................180
GAWR ......................................180
GVWR ......................................180
trailer towing ..........................180
Locks
childproof ................................114
doors ........................................113
Lubricant specifications ...257, 259
Lumbar support, seats .............129M
Message center .........................104
english/metric button .............108
reset button ............................105
warning messages .....................93
Mirrors ...................................85, 98
automatic dimming
rearview mirror .........................98
fold away ...................................99
heated ........................................99
programmable memory ..........120
side view mirrors (power) .......98
Moon roof ..................................103
Motorcraft parts ................241, 255
N
Navigation system .......................24
cd functions ..............................37
destination mode ......................50
map mode .................................41
quick start .................................26
radio functions ..........................30
O
Octane rating ............................240
Oil (see Engine oil) ..................225
P
Parking brake ............................171
Parts (see Motorcraft parts) ....255
Passenger Occupant
Classification Sensor .................134
Pedals (see Power adjustable
foot pedals) .................................99
Power adjustable foot pedals .....99
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
269