1994 CADILLAC FLEETWOOD Owners Manual

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Inflation = Tire Pressure
The Tire-Loading Information label which is located on the driver’s door
shows the correct inflation pressures for your tires, when they’re cold.
I “Cold” means your vehicle has been sitting for at least three hours or
driven no more than a mile.
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NOTICE:
Don’t let anyone tell you that underinflation or overinflation is
all right. It’s not. If your tires don’t have enough air
(underinflation) you can get:
0 Too much flexing
0 Too much heat
0 Tire overloading
Bad wear
0 Bad handling
0 Bad fuel economy.
If your tires have too much
air (overinflation), you can get:
Unusual wear
0 Bad handling
0 Rough ride
Needless damage from road hazards.
When to Check Check your tires once a month or more.
Don’t forget your compact spare tire. It should be at
60 psi (420 kPa).
How to Check Use a good quality pocket-type gage to check tire
pressure. Simply looking at the tires will not tell
you the pressure,
especially if you have radial tires
-- which may look properly inflated even
if they’re underinflated.
If your tires have valve caps, be sure to put them back on. They help
prevent leaks by keeping out dirt and moisture.
Your tire pressures are:
0 Front and Rear - 30 psi (210 kPa)
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3ptional Limousine Packages:
'0 Front and Rear - -35, psi (241 Wa)
Recommended tiresize
is:
'Michelin XW4 P235/70R15 ~.
. 4 Goodyear GA P235/70R15 (Trallermg Option)
0 T145/80D16 (Comnact soare)
Tire Inspection and Rotation
To make your tires last longer, have them inspected and rotated at the
mileages recommended in the Maintenance Schedule. See "Scheduled
Maintenance Services'!
in the Index.
with compact Ispare with fullsize spare
"
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Use .this rotation patte
After-the tires have
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When It’s Time for New .Tires
You need a new tire if
One way to tell when
it’s time for new tires is
to check the treadwear
indicators, which
will
appear when your tires
have only
2/32 inch
(1.6 mm) or less of
tread remaining.
0 You can see the indicators at three or more places around the tire.
0 You can see cord or fabric showing through the tire’s rubber.
The tread or sidewall is cracked, cut or snagged deep enough to show
cord or fabric.
The tire has a bump,. bulge or split.
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The tire has a puncture, cut, or other damage that can’t be repaired
well because of the size or location of the damage.
Buying New Tires
To find out what kind and size of tires you need, look at the Tire-Loading
Information label.
The tires installed on your vehicle
when it was new had a Tire
Performance Criteria Specification (TPC Spec) number on each tire’s
sidewall. When you get new tires, get ones with that same TPC Spec
number. That way, your vehicle will continue to have tires that are
designed to give proper endurance, handling, speed rating, traction, ride
and other things during normal service on your vehicle. If your tires have
an all-season tread design, the TPC number
will be followed by a “MS”
(for mud and snow).
If you ever replace your tires with those not having a TPC Spec number,
make sure they are the same size, load range, speed rating and
construction type (bias, bias-belted or radial) as your original tires.
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Uniform Tire Quality Grading
The following information relates to the system developed by the United
States National Highway Traffic Safety Administration which grades tires
by treadwear, traction and temperature performance. (This applies only
to vehicles sold
in the United States.)
Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and
a half (1 1/2) times as well on the government course as a tire graded
100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices and differences
in road characteristics and climate.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B, and C. They
represent the tire’s ability to stop on wet pavement as measured under
controlled conditions on specified government test surfaces
of asphalt
and concrete. A tire marked
C may have poor traction performance.
Warning: The traction grade assigned to this tire is based
on braking
(straight-ahead) traction tests and does not include cornering (turning)
traction.
Temperature - A, B, C
The temperature grades are A (the highest), B, and C, representing the
tire’s resistance to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the material of the tire
to degenerate and reduce tire
life, and excessive temperature can lead to
sudden tire failure. The grade
C corresponds to a level of performance
which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades
B and A represent higher levels of
performance on
the laboratory test wheel than the minimum required
by law.
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Warning: The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed, underinflation,
or excessive loading, either separately or in combination, can cause heat
These grades are molded on the sidewalls of passenger car tires.
I buildup and possible tire failure.
While the tires available as standard or optional equipment on General
Motors vehicles may vary with respect to these grades, all such tires meet
General Motors performance standards and have been approved for use
on General Motors vehicles.
All passenger type (P Metric) tires must
conform to Federal safety requirements in addition to these grades.
Wheel Alignment and Tire Balance
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The wheels on your vehicle were aligned and balanced carefully at the
factory to give you the longest tire life and best overall performance.
In most cases, you will not need to have your wheels aligned again.
However, if you notice unusual tire wear or your vehicle pulling one way
or the other, the alignment may need to be reset. If
you notice your
vehicle vibrating when driving on a smooth road, your wheels may need
to be rebalanced.
Wheel Rephcement
Replace any wheel that is bent, cracked or badly corroded. If wheel nuts
keep coming loose, the wheel, wheel bolts, and wheel nuts should be
replaced.
If the wheel leaks air, replace it (except some aluminum wheels,
I which can sometimes be repaired). See your Cadillac dealer if any of
these conditions exist.
Your dealer will know the kind
of wheel you need.
Each new wheel should have the same load carrying capacity, diameter,
width, offset, and be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts, or wheel nuts,
replace them only with new GM original equipment parts. This way, you
will be sure to have the right wheel, wheel bolts, and wheel
nuts for your
Cadillac model.
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NOTICE:
The wrong wheel can also cause problems with bearing life,
brake cooling, speedometer/odometer calibration, headlight
aim, bumper height, vehicle ground clearance, and tire or tire \
chain clearance to the body and chassis.
Used Replacement Wheels
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