Page 118 of 272

The remote entry system allows you to open the trunk while the ignition
is in any position. However, if the ignition is in the ON position and the
gearshift is in D (Drive), the trunk will only open if the vehicle is moving
5 km/h (3 mph) or slower.
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 FRONT PART OF
THE REMOTE ENTRY
TRANSMITTER APART.
2. Remove the old battery.
3. Insert the new battery. Refer to
the diagram inside the remote entry
transmitter for the correct orientation of the battery.
4. Snap the two halves back together.
Note:Replacement of the battery willnotcause the remote transmitter
to become deprogrammed from your vehicle. The remote transmitter
should operate normally after battery replacement.
Replacing lost remote entry transmitters
If you would like to have your remote entry transmitter reprogrammed
because you lost one, or would like to buy additional remote entry
transmitters, you can either reprogram them yourself, or takeall
remote entry transmittersto your authorized dealer for
reprogramming.
How to reprogram your remote entry transmitters
You must haveall remote entry transmitters(maximum of four)
available before beginning this procedure.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Locks and Security
118
Page 191 of 272

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
27 20A Fuel filler door release switch
28 10A Heated mirrors
29 20A Left front door module
30 7.5A Trunk lid release switch, Door
lock switches, Left front seat
control switch, Left front door
module, Power mirror switch,
Adjustable pedals
31 7.5A Main light switch, LCM
32 10A Electronic hidden antenna module
33 15A Front radio control unit, Digital
compact disc changer
Relay 1—Accessory delay relay
(Signature/Cartier) or Power
window relay (Executive)
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
Always disconnect the battery before servicing high current
fuses.
Always replace the cover to the power distribution box before
reconnecting the battery or refilling fluid reservoirs
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and specificationschapter.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
191
Page 229 of 272

BATTERY
Your vehicle is equipped with a
Motorcraft maintenance-free battery
which normally does not require
additional water during its life of
service.
However, for severe usage or in high temperature climates, check the
battery electrolyte level. Refer to the scheduled maintenance guide for
the service interval schedules.
Keep the electrolyte level in each cell up to the“level indicator”.
Do not overfill the battery cells.
If the electrolyte level in the battery is low, you can add plain tap water
to the battery, as long as you do not use hard water (water with a high
mineral or alkali content). If possible, however, try to only fill the battery
cells with distilled water. If the battery needs water often, have the
charging system checked.
If your battery has a cover/shield, make sure it is reinstalled
after the battery has been cleaned or replaced.
For longer, trouble-free operation, keep the top of the battery clean and
dry. Also, make certain the battery cables are always tightly fastened to
the battery terminals.
If you see any corrosion on the battery or terminals, remove the cables
from the terminals and clean with a wire brush. You can neutralize the
acid with a solution of baking soda and water.
Batteries normally produce explosive gases which can cause
personal injury. Therefore, do not allow flames, sparks or lighted
substances to come near the battery. When working near the battery,
always shield your face and protect your eyes. Always provide proper
ventilation.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
229
Page 266 of 272

A
Accessory delay ..........................97
Air bag supplemental
restraint system ........147–148, 152
and child safety seats ............149
description ......................148, 152
disposal ....................................154
driver air bag ..................150, 153
indicator light .................151, 154
operation .........................150, 153
passenger air bag ...........150, 153
side air bag ..............................152
Air cleaner filter .......250–251, 255
Air suspension ...........................173
description ..............................173
Antifreeze
(see Engine coolant) ................231
Anti-lock brake system
(see Brakes) ..............................170
Anti-theft system ......................126
Audio system (see Radio) .........17
Automatic transmission
driving an automatic
overdrive .................................175
fluid, adding ............................248
fluid, checking ........................248
fluid, refill capacities ..............256
fluid, specification ..................259
Auxiliary power point .................96
Axle
lubricant specifications ..257, 259
refill capacities ........................256
traction lok ..............................177
B
Battery .......................................229
acid, treating emergencies .....229jumping a disabled battery ....199
maintenance-free ....................229
replacement, specifications ...255
servicing ..................................229
BeltMinder .................................142
Brakes ........................................170
anti-lock ...................................170
anti-lock brake system
(ABS) warning light ...............170
fluid, checking and adding ....247
fluid, refill capacities ..............256
fluid, specifications .........257, 259
lubricant
specifications ..................257, 259
shift interlock ..........................174
Bulbs ............................................79
C
Capacities for refilling fluids ....256
CD changer .................................21
CD-single premium .....................17
Cell phone use ..........................104
Certification Label ....................261
Changing a tire .........................194
Child safety restraints ..............155
child safety belts ....................155
Child safety seats ......................158
attaching with tether straps ..162
in front seat ............................159
in rear seat ..............................159
Cleaning your vehicle
engine compartment ..............216
instrument panel ....................218
interior .............................218–219
plastic parts ............................217
safety belts ..............................220
washing ....................................215
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
Index
266