Page 2 of 272
Seating and Safety Restraints 128
Seating 128
Safety restraints 133
Air bags 147
Child restraints 155
Driving 166
Starting 166
Brakes 170
Traction control/AdvanceTrac 172
Air suspension 173
Transmission operation 174
Vehicle loading 180
Trailer towing 181
Roadside Emergencies 185
Getting roadside assistance 185
Hazard flasher switch 186
Fuel pump shut-off switch 186
Fuses and relays 187
Changing tires 194
Jump starting 199
Wrecker towing 204
Customer Assistance 205
Reporting safety defects (U.S. only) 214
Cleaning 215
Maintenance and Specifications 222
Engine compartment 224
Engine oil 225
Battery 229
Fuel information 237
Air filter(s) 251
Refill capacities 256
Lubricant specifications 257
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Table of Contents
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Page 13 of 272
Air suspension:Illuminates when
the air suspension is turned OFF or
the air suspension system requires
servicing.
Washer:Illuminates when the
windshield washer fluid is low.
Speed control:Illuminates when
the speed control is activated. Turns
off when the speed control system
is deactivated.
O/D off:Illuminates when the
overdrive function of the
transmission has been turned OFF
using the transmission control
switch (TCS), refer to theDriving
chapter. If the light flashes steadily,
have the system serviced
immediately.
Door ajar:Illuminates when any
door is open (or not fully closed).
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
13
Page 104 of 272

Do not let children play with the moon roof. They may seriously
hurt themselves.
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.
A driver’s first responsibility is the safe operation of the vehicle.
The most important thing you can do to prevent a crash is to
avoid distractions and pay attention to the road. Wait until it is safe to
operate Mobile Communications Equipment.
ELECTRONIC MESSAGE CENTER
The electronic message center only works when the ignition is in the ON
position.
The message center allows you to:
•see problems such as door ajar
and trunk ajar.
•check the on/off status of air
suspension, autolamp and speed
control systems.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
104
Page 173 of 272

Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or property damage. The occurrence of an AdvanceTracevent
is an indication that at least some of the tires have exceeded their
ability to grip the road; this may lead to an increased risk of loss of
vehicle control, vehicle rollover, personal injury and death. If you
experience a severe road event, SLOW DOWN.
STEERING
To prevent damage to the power steering system:
•Never hold the steering wheel at its furthest turning points (until it
stops) for more than a few seconds when the engine is running.
•Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
If the power steering system breaks down (or if the engine is turned
off), you can steer the vehicle manually, but it takes more effort.
If the steering wanders or pulls, check for:
•an improperly inflated tire
•uneven tire wear
•loose or worn suspension components
•loose or worn steering components
•improper steering alignment
Speed sensitive steering
The steering in your vehicle is speed sensitive. At high speeds, steering
assist will decrease to improve steering feel. At lower speeds,
maneuverability will be increased.
If the amount of effort required to steer your vehicle changes while
driving at a constant vehicle speed, have the power steering system
checked by your dealer or a qualified service technician.
AIR SUSPENSION SYSTEM
The air suspension system is designed to improve ride, handling and
general vehicle performance during:
•Certain road conditions
•Steering maneuvers
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
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•Braking
•Accelerations
This system keeps the rear of your vehicle at a constant level by
automatically adding air or releasing air from the springs.
If you exceed the load limit, the rear air suspension may not operate.
The air suspension shut-off switch is
located on the left side of the trunk.
If this switch is in the OFF position,
the rear air suspension will not
operate.
On vehicles equipped with
Air Suspension, turn OFF
the Air Suspension switch prior to
jacking, hoisting or towing your
vehicle.
Normal vehicle operation does not
require any action by the driver.
AUTOMATIC TRANSMISSION OPERATION
Brake-shift interlock
This vehicle is equipped with a brake-shift interlock feature that prevents
the gearshift lever from being moved from P (Park) when the ignition is
in the ON position unless brake pedal is depressed.
If you cannot move the gearshift lever out of P (Park) with ignition in
the ON position and the brake pedal depressed:
1. Apply the parking brake, turn ignition key to LOCK, then remove the
key.
2. Insert the key and turn it to OFF.Apply the brake pedal and shift
to N (Neutral).
When the key is in the ignition OFF position, the automatic
transmission shift lever can be moved from the P (Park) position
without the brake pedal depressed. To avoid unwanted vehicle
movement, always set the parking brake.
AIR SUSPENSION
SWITCH
INTERRUPTEUR DE
LA SUSPENSION
PNEUMATIQUE
WARNING
AVERTISSEMENTOFF-ARRET
To prevent sudden
vehicle movement,
turn off air suspen-
sion switch prior to
jacking, hoisting or
towing vehicle.
Pour prévenir tout mouvement soudain du véhi-
cule, placer à l'arrêt l'interrupteur de la suspension
pneumatique avant de lever le véhicule (cric ou
pont élévateur) ou de le remorquer.
OFF
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
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Page 181 of 272

engine/transmission combination, any required option weight for trailer
towing and the weight of the driver from the GCWR for the towing
vehicle.
•Maximum Trailer Weight:Maximum weight of a trailer the loaded
vehicle (including occupants and cargo) is permitted to tow. It is
determined by subtracting the weight of the loaded trailer towing
vehicle from the GCWR for the towing vehicle.
•Trailer Weight Range:Specified weight range that the trailer must
fall within that ranges from zero to the maximum trailer weight rating.
Remember to figure in the tongue load of your loaded trailer when
figuring the total weight.
Do not exceed the GVWR or the GAWR specified on the
certification label.
Do not use replacement tires with lower load carrying capacities than the
originals because they may lower the vehicle’s GVWR and GAWR
limitations. Replacement tires with a higher limit than the originals do
not increase the GVWR and GAWR limitations.
The Certification Label, found on the inside pillar of the driver’s door,
lists several important vehicle weight rating limitations. Before adding
any additional equipment, refer to these limitations. If you are adding
weight to your vehicle, always ensure that the weight of occupants, cargo
and equipment being carried is within the weight limitations that have
been established for your vehicle including both gross vehicle weight and
front and rear gross axle weight rating limits. Under no circumstance
should these limitations be exceeded.
Exceeding any vehicle weight rating limitation could result in
serious damage to the vehicle loss of vehicle control, vehicle
rollover, and/or personal injury.
The weight of your loaded trailer should not exceed 907 kg (2,000 lbs).
The GCW of your vehicle and trailer should not exceed 2,993 kg (6,600 lbs).
TRAILER TOWING
Your vehicle is classified as a light duty towing vehicle. Do not tow a
trailer until your vehicle has been driven at least 3,200 km (2,000 miles).
Towing a trailer places an additional load on your vehicle’s engine,
transmission, brakes, tires and suspension. Inspect these components
carefully after towing.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
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Page 189 of 272
The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 10A Lighting Control Module (LCM),
Left-hand low beam headlamp
2 15A Fog lamps
3 10A LCM, Right-hand low beam
headlamp
4 7.5A Instrument cluster
5 7.5A LCM, Instrument panel light
6 15A EATC, Heated seats
7 15A LCM, Autolamps/PAT/Sunload
sensors, Park/Tail lamps,
Cornering lamps
8 10A Shift lock, Speed control, Air
suspension
9 20A Hi beam headlamps (LCM)
10 10A Restraint Control Module (RCM),
Air bags
27 25
26 2423 21
2219
20
18 16
17 1514 12
1310
33
31
2932
30
28 11
97
8653
41
2RELAY
1
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
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Page 196 of 272
If the vehicle slips off the jack, you or someone else could be
seriously injured.
1. Park on a level surface, activate
hazard flashers and set parking
brake.
2. Place gearshift lever in P (Park),
turn engine OFF and block the
diagonally opposite wheel.
3. Remove the spare tire and the
jack. The jack is located in the trunk
(in a holder bracket), on the
right-hand side, next to the wheel
well.
On vehicles equipped with
Air Suspension, turn OFF
the Air Suspension switch prior to
jacking, hoisting or towing your
vehicle.
HOOD
OFF
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
196