BUICK PARK AVENUE 2000 Owner's Manual

5-16
8. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out of the
filler neck, reinstall the pressure cap. Be sure the
arrows on the pressure cap line up like this.
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.

5-17
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. Set the parking brake firmly.
2. Put the shift lever in PARK (P).
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.

5-18 Removing the Spare Tire and Tools
The equipment you'll need is located in the trunk.
Instructions for changing your tires are on the inside of
the tire cover. You can rest the cover near you for easy
reference while you change the tire.
1. Lift the tire cover to gain access to the spare tire and
jacking equipment.
2. Remove the wheel wrench and jack from the
jack container.3. Remove the spare tire from the trunk. See ªCompact
Spare Tireº later in this section for more information
about the compact spare.
The tools you'll be using include the jack (A) and the
wheel wrench (B).

5-19 Removing Wheel Covers and Wheel
Nut Caps
The following steps are necessary if you have the alloy
(aluminum) wheel with a center cover that conceals
the wheel nuts.
1. Insert the flat end of the wheel wrench in the notch
and pry off the center cover. Do not drop the
cover or lay it face down, as it could be scratched
or damaged.
2. If your vehicle has this
aluminum wheel, you
may have plastic wheel
nut caps. Use the wheel
nut wrench to remove
the wheel nut caps and
to loosen the wheel nuts.
3. When reinstalling the decorative nut caps, tighten the
caps snugly with the wheel wrench, then continue
one
-eighth turn for steel caps and one-quarter turn
for plastic caps.
It is not required to remove the center cover on this
wheel; however, if it should be necessary, it should
be removed from the back side by pushing out with a
blunt tool and not pried off from the front.
When reinstalling the cap, there is a plastic
alignment pin which must be aligned with the notch
in the wheel to assure proper installation.
4. After the wheel is put back on the vehicle, reinstall
the cover. Apply pressure around the edge of the
cover to snap it in place. Do not use a hammer or
mallet to install the cover.

5-20 Removing the Flat Tire and Installing the
Spare Tire
1. Use the wheel wrench to loosen the wheel nuts, but
don't remove them yet.
2. The jack has a bolt at the
end. Attach the wheel
wrench to the bolt to
create a jack handle.
3. Turn the wheel wrench counterclockwise to lower
the jack head until it fits under the vehicle.
4. Near each wheel well is a notch in the plastic trim
panel to position the jack head. You'll find the word
JACK and an arrow stamped into the plastic near
each notch. Position the jack under the vehicle and
raise the jack head until it fits firmly against the
sheet metal next to the word JACK. Do not raise the
vehicle yet. Put the compact spare tire near you.

5-21
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.5. Raise the vehicle by turning the wheel wrench
clockwise in the jack. Raise the vehicle far enough
off the ground so there is enough room for the spare
tire to fit.
6. Remove all the wheel nuts and take off the flat tire.

5-22
7. 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 nuts
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 studs or nuts. If you
do, the nuts might come loose. Your wheel could
fall off, causing a serious accident.
Install the compact
spare tire on the
wheel
-mounting
surface. Then reinstall
the wheel nuts with the
rounded end of the
nuts toward the wheel.
Tighten each nut by hand until the wheel is held
against the hub.

5-23
8. Lower the vehicle by turning the wheel wrench
counterclockwise. Lower the jack completely.
Using the wheel
wrench, tighten
the wheel nuts
firmly in a
crisscross sequence.
CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new GM original
equipment wheel nuts.
Stop somewhere as soon as you can and have
the nuts tightened with a torque wrench to
100 lb
-ft (140 N´m).
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
Store the wheel cover in the trunk until you have the
flat tire repaired or replaced.

5-24
NOTICE:
Wheel covers won't fit on your compact spare.
If you try to put a wheel cover on your compact
spare, you could damage the cover or the spare.
Storing the Flat 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 compact spare tire on your vehicle,
you'll need to store the flat tire in your trunk. Use the
following procedure to secure the flat tire in the trunk.
Store the flat tire as far forward in the trunk as possible.
Store the jack and wheel wrench in their compartment in
the trunk.

5-25 Storing the 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.
Store the compact spare tire and tools as shown in
the diagram.
The compact spare tire is for temporary use only.
Replace the compact spare tire with a full
-size tire as
soon as you can. See ªCompact Spare Tireº later in
this section.