1993 BUICK RIVIERA tires

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If You’re Stuck: In Sand, Mud, Ice or
Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels. The method known
as “rocking”
can help
you get out when you’re stuck, but you must
use caution.
A CAUTION:
If you let your tires spin at high speed, they can
explode and you or others could be injured.
And, the transaxle or other parts of the vehicle
can overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels as little as possible.
Don’t spin the wheels above
35 mph (55 km/h)
as shown on the speedometer.

Remove the bulb from the Loading Your Vehicle
bulb socket by turning it
counterclockwise.
%I OCCUPANTS VEHICLE CAP. WT.
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TIRE-LOADING INFORMATION,
FRT. CTR. RR. TOTAL
LBS. KG
MAX. LOADING & GVWR SAME AS VEHICLE
CAPACITY WEIGHT XXX COLD
TIRE
TIRE SIZE SPEED PRESSURE
RTG PSI/KPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PS1128KPa
SEE OWNER'S MANUAL FOR ADDITIONAL
1 Install a new bulb into the socket turning it clockwise INFORMATION 111-p ?j$##..:,
(right) until it is locked in place. Insert the socket into \
the lamp and turn it clockwise (right) to lock it into
place. Reverse the instructions to replace the taillamp assembly.
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found on the rear edge of the driver's door tells you the
proper size, speed rating and recommended inflation
pressures for the tires on your vehicle. It also gives you
important information about the number of people that can be in your vehicle and the total weight that you can
carry. This weight is called the Vehicle Capacity Weight
and includes the weight
of all occupants, cargo, and all
nonfactory-installed options.
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A CAUTION:
1 Things you put inside your vehicle can strike
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' and injure people in a sudden stop or turn, or in
j a crash.
Put things in the trunk of your vehicle.
In a trunk, put them as far forward as
you can. Try to spread the weight evenly.
Never stack heavier things, like suitcases,
inside the vehicle
so that some of them
are above the tops of the seats.
vehicle, secure it whenever you can.
need to.
When you carry something inside the
Don't leave a seat folded down unless you
Tires
We don't make tires. Your new vehicle comes-with high
quality tires made by a leading tire manufacturer. These
tires are warranted by the tire manufacturers and their warranties are delivered with every new Buick.
If your
spare tire is a different brand than your road tires, you
will have
a tire warranty folder from each of these
manufacturers.
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A?!,, CAUTION:
1
Poorly maintained and' i!rn,pvaget.ly used tires are
dangemus.
* Owrloadi'ng your tlires can cause
overheatingl
as a result of too much,
friction. You could have an air-crut and a
Vehicle"
in the Index.
Underinflated tires pose tlhe same danger
6s overloaded tires. The viesulting
acci'dent could cause seriouls injury.
Check all1 tires frequently to msintdn the "
recormmended pressure,. Tire (pressure
shoul,d
be checked w'hsn your tires a're
I * averinflated tires are moire likely t'o be ,GU!~,
punctured, 'or broken by a sudden impact,,
such as when you, hit a pothole. Keep tires
at the recommended pres'sura
0 Worn, old tires can cause accidents. If
your tread is ;badily worm,, lor if your tires
have been damaged, replace them
I serious accident. See "kading Your
Gold.
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Inflation - Tire Pressure
The Tire-Loading Information label which is located on
the rear edge
of the drivers door shows the correct
inflation pressures
for your tires, when they’re cold.
“Cold” means your vehicle has been sitting for at least
three hours or driven no more than a mile.
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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).
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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.
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.
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Use this rotation pattern.
After the tires have been rotated, adjust the front and
rear inflation pressure
as shown on the Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See “Wheel Nut Torque”
in the
Index.

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 rdnge, speed rating and construction type (bias,
bias-belted or radial) as your original tires.
, A CAUTION:
Mixing tires could cause you to lose control
while driving.
If you mix tires of different sizes
or types (radial and ‘bias-belted tires), the
1 vehicle may not handle properly, and you cou’ ’
have a crash. Be sure to use the same size ana
type tires on all four wheels.
It’s
all right to drive with your compact spa
though. It was developed for use
on your
vehicle.
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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
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(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
whicrall 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.
Warning: The temperature grade for this tire is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
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excessive loading, either separately or in combination, !
can cause heat buildup and possible tire failure.
Those grade
b are molded on the sidewalls of passenger
car tires.
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.
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A CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous.
It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could’ have a
collision
in which you or others could be
injured. Always use the correct wheel, wheel
bolts, and wheel nuts for replacement. I
Used Keplacement Wheels
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A CAUTION:
Putting a used eel on your vehicle is
dangerous. You can’t know how
it’s been used
or how many miles it’s been driven.
It could fail
suddenly and cause an accident. If you have to
replace a wheel use a new
GM original
equipment wheel.
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