Page 198 of 216
•Front Wheel Drive (FWD)
vehicles (front tires at top of
diagram)
• Rear Wheel Drive (RWD)
vehicles/Four Wheel Drive (4WD)
vehicles (front tires at top of
diagram)
2004 Thunderbird (tbr)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
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Page 199 of 216

Sometimes irregular tire wear can be corrected by rotating the tires.
Note:If your tires show uneven wear ask a qualified technician at a
reputable repair facility to check for and correct any wheel misalignment,
tire imbalance or mechanical problem involved before tire rotation.
Tire wear
Measure and inspect the tire tread on all your tires periodically.
Advanced and unusual tire wear can reduce the ability of tread to grip
the road in adverse (wet, snowy, etc.) conditions. Visually check your
tires for uneven wear, looking for high and low areas or unusually
smooth areas. Also check for signs of tire damage.
When the tread is worn down to 4
mm (1/16th of an inch), tires must
be replaced to prevent your vehicle
from skidding and hydroplaning.
Built-in treadwear indicators, or
“ wear bars ”, which look like narrow
strips of smooth rubber across the
tread will appear on the tire when
the tread is worn down to 4mm (1/16th of an inch). When you see these
“ wear bars ”, the tire is worn out and should be replaced.
Inspect your tires frequently for any of the following conditions and
replace them if one or more of the following conditions exist:
• Fabric showing through the tire rubber
• Bulges in the tread or sidewalls
• Cracks or cuts on the sidewalls
• Cracks in the tread groove
• Impact damage resulting from use
• Separation in the tread
• Separation in the sidewall
• Severe abrasion on the sidewall
If your vehicle has a leak in the exhaust system, a road tire or the spare
tire may be exposed to hot exhaust temperatures requiring the tire to be
replaced.
Safety practices
Driving habits have a great deal to do with your tire mileage and safety.
• Observe posted speed limits
2004 Thunderbird (tbr)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
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Page 200 of 216

•Avoid fast starts, stops and turns
• Avoid potholes and objects on the road
• Do not run over curbs or hit the tire against a curb when parking
If you vehicle is stuck in snow, mud, sand, etc., do notrapidly spin the
tires; spinning the tires can tear the tire and cause an explosion. A tire
can explode in as little as three to five seconds.
Tire explosions can cause death, personal injury or property
damage. Do not allow anyone to stand near, or directly ahead or
behind the spinning tire.
Never spin the tires in excess of the 55 km/h (35 mph) point
indicated on the speedometer.
Highway hazards
No matter how carefully you drive there ’s always the possibility that you
may eventually have a flat tire on the highway. Drive slowly to the
closest safe area out of traffic. This may further damage the flat tire, but
your safety is more important.
If you feel a sudden vibration or ride disturbance while driving or you
suspect your tire or vehicle has been damaged, immediately reduce your
speed. Drive with caution until you can safely pull off the road. Stop and
inspect the tire for damage. If the tire is under-inflated or damaged,
deflate it, remove wheel and replace it with your spare tire and wheel. If
you cannot detect a cause, have the vehicle towed to the nearest repair
facility or tire dealer to have the vehicle inspected.
SNOW TIRES AND CHAINS
Driving too fast for conditions creates the possibility of loss of
vehicle control.
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
Driving at very high speeds for extended periods of time may result in
damage to vehicle components.
The tires on your vehicle have all-weather treads that provide traction in
rain or snow.
2004 Thunderbird (tbr)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
200
Page 216 of 216

belt minder ...............................81
extension assembly ..................85
for adults .............................77–80
for children ...............................97
safety belt maintenance ...........85
warning light and chime ..........81
Safety seats for children ..........100
Seat belts
(see Safety restraints) ...............76
Seats ............................................73 child safety seats ....................100
Select Shift Transmission
(SST) shifter .............................118
Servicing your vehicle ..............163
Spare tire
(see Changing the Tire) ...........136
Spark plugs,
specifications .....................201, 205
Specification chart,
lubricants ...........................203, 205
Speed control ..............................42
Starting your vehicle ........109 –111
jump starting ..........................141
Steering speed sensitive .......................115
Steering wheel controls ......................................45
tilting .........................................39
T
Tilt steering wheel ......................39
Tires ...........................136, 188 –189
changing ..................136 –137, 141
snow tires and chains ............200
tire grades ...............................189 treadwear ................................189
Towing .......................................124 recreational towing .................124
trailer towing ..........................124
wrecker ....................................147
Traction control ........................113
Transmission .............................115 brake-shift interlock (BSI) ....115
fluid, checking and adding
(automatic) .............................186
fluid, refill capacities ..............201
lubricant specifications ..203, 205
Trunk ...........................................62 remote release ....................41, 65
Turn signal ..................................30
V
Vehicle dimensions ...................205
Vehicle Identification Number
(VIN) ..........................................207
Vehicle loading ..........................121
Ventilating your vehicle ...........112
W
Warning lights (see Lights) .......10
Washer fluid ..............................165
Water, Driving through .............121
Windows power .........................................40
Windshield washer fluid and
wipers ..........................................38 checking and adding fluid .....165
replacing wiper blades .............38
Wrecker towing .........................147
2004 Thunderbird (tbr)
Owners Guide (post-2002-fmt)
USA English (fus)
Index
216
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