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4-39 Parking on Hills
CAUTION:
You really should not park your vehicle, with
a trailer attached, on a hill. If something goes
wrong, your rig could start to move. People can
be injured, and both your vehicle and the trailer
can be damaged.
But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but don't shift into
PARK (P) yet, or into gear for a manual transmission.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking
brake, and then shift to PARK (P), or REVERSE (R)
for a manual transmission.
5. Release the regular brakes.
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5-22
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.
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 an automatic transmission shift lever in
PARK (P), or shift a manual transmission
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.
Page 236 of 359
5-24
2. Find the plastic screw heads in the trim panel over
the spare tire. See ªCompact Spare Tireº in the
Index for more information about the compact spare.
Turn the screw heads until the slots point front and
back to the unlock position. Gently lift the trim
panel's front forward edge and remove the panel.
If you have speakers in the trim panel, you may have
to disconnect the wire from the speaker. The speaker
wire may be long enough to remove the trim panel
without disconnecting the wire.3. To remove the jack and wheel wrench, loosen and
remove the bolt and remove the plastic cover.
Page 237 of 359
5-25
4. Remove the wing nut and adapter and pull out the
compact spare tire. If your vehicle is a convertible,
you will also need to remove the taillamp wing nut
before removing the compact spare tire.The tools you'll be using include the jack (A) and
wheel wrench (B).
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5-26
Your vehicle has alloy wheels.
1. First remove the decorative nut caps using the
wheel wrench. Each wheel may have one locknut
in place of the standard wheel nut. A special wheel
lock key (removal tool) and instructions are located
in the glove box.
2. Attach the wheel lock key to the socket of
the wheel wrench.
3. Remove the locking wheel nut by
turning counterclockwise.Removing the Flat Tire and Installing the
Spare Tire
1. Using the wheel wrench, loosen all the wheel nuts.
Don't remove them yet.
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5-29
3. 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.
4. Remove all the wheel nuts and take off the flat tire.
5. 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.
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5-30
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.
6. Install the compact spare tire and put the wheel nuts
back on with the rounded end of the nuts toward the
wheel. Tighten each nut by hand until the wheel is
held against the hub.
7. Lower the vehicle by turning the wheel wrench
counterclockwise. Lower the jack completely.
Page 243 of 359

5-31
8. Tighten the wheel nuts
firmly in a crisscross
sequence as shown.
Install the plastic nut
caps and tighten by
hand. Then, using
the wheel wrench,
tighten an additional
one
-quarter turn.
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.
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.
Return the jack, wheel wrench and flat tire following the
storage instructions. When you reinstall the trim panel,
be sure to tuck it under the weatherstrip.