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5-23
5. After removing the spare tire, turn the wrench
clockwise to raise the cable back up.
Do not store a full
-size or a flat road tire under the
vehicle. See ªStoring a Flat or Spare Tire and Toolsº
later in this section.
To continue changing the flat tire see ªRemoving the Flat
Tire and Installing the Spare Tireº later in this section.
If the spare tire will not lower, the secondary latch may
be engaged and causing the tire not to lower.Do the following to check the cable:
1. Check under the vehicle to see if the cable is visible.
2. If not visible, see ªSecondary Latch Systemº
later in this section.
If visible, first try to tighten the cable by turning
the folding wrench clockwise until you hear two
clicks or feel it skip twice. You can not overtighten
the cable.
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. Repeat this procedure at least two times.
5. If you still cannot lower the spare tire to the ground,
see ªSecondary Latch Systemº later in this section.
6. If the spare tire did lower to the ground, continue with
Step 4 under ªRemoving the Spare Tire (Vehicles
without the Rear Convenience/Cargo Tray)º.
Page 327 of 455
5-24
Removing the Spare Tire (Vehicles with the
Rear Convenience/Cargo Tray) (Optional)
The compact spare tire is located under the vehicle,
ahead of the rear bumper. See ªCompact Spare Tireº
later in this section for more information about the
compact spare.
A. Rear Convenience/
Cargo Tray
B. Folding Wrench
C. Storage
Compartment
Cap HoleD. Hoist Shaft
E. Compact Spare Tire
F. Retainer
G. Hoist Shaft
Assembly1. Open the storage compartment door of the
convenience/cargo tray that is nearest the
liftgate and remove the cap on the bottom of
the storage compartment.
2. Flip the cut out carpet that is located through the
hole of the storage compartment.
3. Attach the folding wrench into the hoist shaft.
4. Turn the folding wrench counterclockwise to lower
the spare tire to the ground. Continue turning the
wrench until the spare tire can be pulled out from
under the vehicle.
Page 328 of 455
5-25
5. To remove the spare tire from the cable, tilt the
retainer and slip it through the wheel opening.
6. After removing the spare tire, turn the wrench
clockwise to raise the cable back up.
Do not store a full
-size or a flat road tire under the
vehicle. See ªStoring a Flat or Spare Tire and Toolsº
later in this section.
To continue changing the flat tire see ªRemoving
the Flat Tire and Installing the Spare Tireº later in
this section.
If the spare tire will not lower, the secondary latch may
be engaged and causing the tire not to lower. Do the
following to check the cable:
1. Check under the vehicle to see if the cable is visible.
2. If not visible, see ªSecondary Latch Systemº later
in this section.
If visible, first try to tighten the cable by turning
the folding wrench clockwise until you hear two
clicks or feel it skip twice. You can not overtighten
the cable.
Page 329 of 455

5-26
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. Repeat this procedure at least two times.
5. If you still cannot lower the spare tire to the ground,
see ªSecondary Latch Systemº later in this section.
6. If the spare tire did lower to the ground, continue
with Step 6 under ªRemoving the Spare Tire
(Vehicles with the Rear Convenience/Cargo Tray)º.
Secondary Latch System
Your vehicle has an underbody mounted tire hoist
assembly equipped with a secondary latch system. It's
designed to stop the compact spare tire from suddenly
falling off your vehicle if the cable holding the spare tire
is damaged. For the secondary latch to work, the tire
must be stowed with the valve stem pointing down. See
ªStoring the Spare Tire and Toolsº in the Index for
instructions on storing the spare tire correctly.
CAUTION:
Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly
and you and others could get hurt. Read and
follow the instructions listed below.
To release the spare tire from the secondary latch,
do the following:
CAUTION:
Someone standing too close during the procedure
could be injured by the jack. If the spare tire does
not slide off the jack completely, make sure no one
is behind you or on either side of you as you pull
the jack out from under the spare.
1. If the cable is not visible, start this procedure
at Step 3.
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5-27
2. Turn the wrench counterclockwise until
approximately 6 inches (15 cm) of cable is exposed.
3. Attach the folding wrench to the jack and raise the
jack at least 10 turns.
4. Place the jack under the vehicle, ahead of the rear
bumper. Position the center lift point of the jack
under the center of the spare tire.5. Turn the folding wrench clockwise to raise the jack
until it lifts the secondary latch spring.
6. Keep raising the jack until the spare tire stops
moving upward and is held firmly in place, this lets
you know that the secondary latch has released
Page 331 of 455
5-28
7. Lower the jack by turning the folding wrench
counterclockwise. Keep lowering the jack until
the spare tire is resting on the folding wrench.8. Grasp the spare tire with both hands and pull it out
from under the vehicle.
9. Reach under the vehicle and remove the folding
wrench and jack.
10. When the spare tire has been completely lowered,
tilt the retainer and slip it through the wheel opening.
11. If the cable is hanging, turn the wrench clockwise
to raise the cable back up.
Have the hoist assembly inspected as soon as you can.
You will not be able to store a spare or flat tire using the
hoist assembly until it has been repaired or replaced.
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5-31
4. Attach the folding wrench
to the jack, and turn
the wrench clockwise
to raise the jack head
3 inches (7.6 cm).
5. Raise the vehicle by turning the folding wrench
clockwise in the jack. Raise the vehicle far enough
off the ground so that there is enough room for the
spare tire to fit under the wheel well.
6. Remove all the wheel nuts and take off the flat tire.
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.
Page 335 of 455
5-32
8. Install the 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.
9. Lower the vehicle by attaching the folding wrench to
the jack and turning the wrench counterclockwise.
Lower the jack completely.
10. Tighten the wheel nuts
firmly in a crisscross
sequence, as shown.
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).