2003 Oldsmobile Alero flat tire

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
(1.5) 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 - AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades 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 straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
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.
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 buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory
to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are not needed. 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.
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Wheel Replacement
Replace any wheel that is bent, cracked or badly rusted
or 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, which can sometimes be repaired).
See your 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 vehicle. 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
Notice: The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance and tire or tire chain clearance to the body and chassis.
See
Changing a Flat Tire on page 5-62 for more
mtormatlon.
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Notice: If your vehicle has a tire size other than
P225/50R16 size tires, use tire chains only where
legal and only when you must. Use only
SAE Class
“S” type chains that are the proper size for your
tires. Install them on the front tires and tighten them
as tightly as possible with the ends securely
fastened. Drive slowly and follow the chain manufacturer’s instructions.
If you can hear the
chains contacting your vehicle, stop and retighten
them.
If the contact continues, slow down until
it stops. Driving too fast or spinning the wheels with
chains on will damage your vehicle.
If a Tire Goes Flat
It’s unusual for a tire to “blow out” while you’re driving,
especially
if you maintain your tires properly. If air
goes out of a tire, it’s much more likely to leak out
slowly. But
if you should ever have a “blowout”, here are
a few tips about what to expect and what to do:
If a front tire fails, the flat tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much like a
skid and may require the same correction you’d use
ir; a skid. In any rear blowoi:, rem0t.e yoi; foot from the
accelerator pedal. Get the vehicle under control by
steering the way you want the vehicle to go. It may be
very bumpy and noisy, but you can still steer. Gently
brake to a stop
- well off the road if possible.
If a tire goes flat, the next part shows how to use your
iackinq equipment to chanqe a flat tire safely.
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Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning flashers.
Changing a tire can cause an injury. The
vehicle can slip
off the jack and roll over you
or other people. You and they could be badly
injured. Find a level place to change your tire.
To help prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transaxle shift lever in
PARK (P), or shift a manual transaxle to
FIRST
(1) or REVERSE (R).
3. Turn off the engine.
To be even more certain the vehicle won't
move, you can put blocks at the front and
rear
of the tire farthest away from the one
being changed. That would be the tire on
the other side
of the vehicle, at the
opposite end. The following
steps will tell you how to use the jack and
change a tire.
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A
The tools you’ll be using include the jack (A) and wheel
wrench
(B).
Removing the Flat Tire and Installing
the Spare Tire
1. If your vehicle has a wheel cover or hubcap that
has a plastic wheel nut cap, then loosen the
plastic nut caps (you may need to use the wheel
wrench to loosen them).
Do not pry off wheel covers
or center caps that have plastic wheel nut caps.
2. Remove the wheel cover or center cap.
3. If your vehicle has a wheel cover or hubcap without
plastic wheel nut caps, gently pry on the edge
of
the plastic wheel trim to remove it from the wheel to
find the wheel nuts.
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18 inches (46 cm) 18 inches (46 cm)
4. Then use the wheel wrench to loosen all the wheel
nuts. Don’t remove them yet. 5. Position the jack and raise the jack head until it fits
firmly into the notch in the vehicle’s frame nearest
the flat tire. Put the compact spare tire near you.
Getting under a vehicle when it is jacked up is
dangerous.
If the vehicle slips off the jack you
could be badly injured or killed. Never get
under a vehicle when it is supported only by
a jack.
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. Asing your vehic- ..____ __._ jal--- impropc -r
positioned can damage the vehicle and even
make the vehicle fall. To help avoid personal
injury and vehicle damage, be sure
to fit the
jack lift head into the proper location before
raising the vehicle.
6. Raise the vehicle by turning the wheel wrench
clockwise. Raise the vehicle far enough
off the
ground
so there is enough room for the compact
spare tire to fit underneath the wheel well.
7. Remove all of the wheel nuts.
8. Remove the flat tire.
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Storing the Flat Tire and Tools
Storing a jack, a tire or other equipment in 1
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
Store the flat tire in the compact spare tire compartment.
Place the tire in the compartment, ther! secure the
adapter and wing nut. Place the cover and the nut on
top of the flat tire. Store the jack and the wrench in the
foam tray.
A L
F
G
A. Nut
B. Cover
C. Wing Bolt
D. Adapter
E. Wrench
F. Jack
G. Tool Tray
H. Flat Tire
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