1999 CADILLAC CATERA wheel

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5. Then replace the pressure cap. Be sure the pressure
cap is hand
-tight.
If a Tire Goes Flat
It's unusual for a tire to ªblow outº 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 ªblowout,º 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 in a
skid. In any rear blowout, remove your 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
jacking equipment to change 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.
CAUTION:
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. Put the shift lever in PARK (P).
2. Set the parking brake firmly.
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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The tools you'll be using include the jack (A), the wheel
wrench (B) and the screwdriver (C).
Removing the Flat Tire and Installing the
Spare Tire
1. Use the flat end of the screwdriver to pry off the five
black plastic wheel bolt caps. Be careful not to
scratch the wheel edge.

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5-22
2. Using the wheel wrench, loosen all of the wheel
bolts. Don't remove them yet.
3. Turn the jack handle clockwise to raise the jack lift
head 2 to 3 inches (5 to 7.6 cm).4. To access the jack hoisting notches, pull hard from
the back of the hoisting notch cover (located either in
front of or behind the tire you are changing).

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CAUTION:
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.
CAUTION:
Raising your vehicle with the jack improperly
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 jack handle
clockwise. Raise the vehicle far enough off the
ground for the spare tire to fit under the vehicle.
7. Remove all wheel bolts and take off the flat tire.

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8. Remove any rust or dirt
from the wheel bolts,
mounting surfaces and
spare wheel.
CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel bolts
become loose after a time. The wheel could come
off and cause an accident. When you change a
wheel, remove any rust or dirt from the places
where the wheel attaches to the vehicle. In an
emergency, you can use a cloth or a paper towel
to do this; but be sure to use a scraper or wire
brush later, if you need to, to get all the rust or
dirt off.
CAUTION:
Never use oil or grease on wheel bolts. If you do,
the bolts might come loose. Your wheel could fall
off, causing a serious accident.
9. Place the wheel on the wheel-mounting surface.
10. Replace the wheel
bolts. Tighten each bolt
by hand until the wheel
is held against the hub.

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11. Lower the vehicle by turning the jack handle
counterclockwise. Lower the jack completely. After
removing the jack, slide the jack hoisting notch
cover back in.
12. Tighten the wheel bolts
firmly in a crisscross
sequence as shown.
CAUTION:
Incorrect wheel bolts or improperly tightened
wheel bolts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel bolts. If you have
to replace them, be sure to get new GM original
equipment wheel bolts.
Stop somewhere as soon as you can and have
the bolts tightened with a torque wrench to
80 lb
-ft (110 N´m).

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NOTICE:
Improperly tightened wheel bolts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
bolts in the proper sequence and to the proper
torque specification.
Storing a Flat or Spare Tire and Tools
CAUTION:
Storing a jack, a tire or other equipment in the
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.
After you've put the spare tire on your vehicle, you'll
need to store the flat tire in the trunk. Use the following
procedure to secure the flat tire in the trunk.
Put the flat tire in the trunk
where the spare is stored
(driver's side wheel well).
Secure the flat tire with the
straps that are used to hold
the spare in place.