GMC SIERRA DENALI 2003 Owners Manual

Follow these instructions to lower the spare tire:
1. If your vehicle is equipped with a hoist lock, open
the spare tire lock cover on the bumper and use
the ignition key to remove the lock.
2. Assemble the wheel wrench and the two jack
handle extensions as shown. Insert the hoist
end (open end) of the extension through the hole in
the rear bumper. Be sure the hoist end of the
extension connects into the hoist shaft.
3. Turn the wheel wrench counterclockwise to lower
the spare tire to the ground. Continue to turn the
wheel wrench until the spare tire can be pulled out
from under the vehicle. The wheel wrench has a
hook that allows you to pull the hoist cable towards
you, to assist in reaching the spare tire.
If the spare tire does not lower to the ground, the
secondary latch is engaged causing the tire
not to lower. See Secondary Latch System next.
4. When the tire has been lowered, tilt the retainer at
the end of the cable
so it can be pulled up through
the wheel opening.
5. Put the spare tire near the flat tire. The
tools you’ll be using include the bottle jack
(A), the
wheel blocks
(B), the jack handle (C), the jack handle
extensions
(D), and the wheel wrench (E).
If the flat tire is on a rear tire of the vehicle, you’ll need
to use both jack handle extensions.
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Attach the wheel wrench to the jack handle extensions
(as needed). Attach the jack handle to the jack. Turn the
wheel wrench clockwise to raise the jack lift
head a little.
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To remove the center cap place the chisel end of the
wheel wrench in the
slot on the wheel and gently
pry out.
Secondary Latch System
If your vehicle has this feature, your vehicle has an
underbody mounted tire hoist assembly equipped with a
secondary latch system. It’s designed to stop the
spare tire from falling
off your vehicle. For the secondary
latch to work, the spare must be installed with the
valve stem pointing down. See “Storing a Flat
or Spare
Tire and Tools” for instructions on storing the spare
or flat tire correctly.
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.
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To release the spare tire from the secondary latch do
the following:
1. Check under the vehicle to see if the cable end is
visible.
2. If it is not visible proceed to step 6.
If it is visible, first try to tighten the cable by turning
the wheel wrench clockwise until you hear two
clicks or feel it skip twice. You cannot overtighten
the cable.
3. Loosen the cable by turning the wrench
counterclockwise three or four turns.
4. Repeat this procedure at least two times, if the
spare tire lowers to the ground, continue with
step
4 of “Removing Your Spare Tire and Tools”
earlier in this section.
approximately six inches
(1 5 cm) of cable is
5. Turn the wrench counterclockwise until
exposed.
6. Stand the wheel blocks
on their shortest ends,
with the backs
facing each other.
7. Hook the bottom edge of the jack on the wheel
blocks, separating them
so that the jack is
balanced securely.
8. Attach the jack handle, extension, and wheel
wrench to the jack and place it (with the wheel
blocks) under the vehicle towards the front of the
rear bumper. Position the center
lift point of the jack
under the center of the spare tire.
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9. Turn the wrench clockwise to raise the jack until it
lifts the end fitting.
10. Continue raising the jack until the spare tire stops
moving upward and is held firmly in place. The
secondary latch has released and the spare tire is
balancing on the jack.
11. Lower the jack by turning the wheel wrench
counterclockwise. Keep lowering the jack until the
spare tire slides
off the jack or is hanging by
the cable.
12. Disconnect the jack handle from the jack and
carefully remove the jack. Use one hand
to
push against the spare while firmly pulling the jack
out from under the spare with the other hand.
If the spare is hanging from the cable, insert the
hoist handle, extension and wheel wrench into the
hoist shaft hole in the bumper and turn the
wheel wrench counterclockwise to lower the spare
the rest of the way.
13. Tilt the retainer at the end of the cable and pull it
through the wheel opening. Pull the tire out from
under the vehicle.
14. If the cable is hanging under the vehicle, turn the
wheel wrench in the hoist shaft hole in the bumper
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 replaced.
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Removing the Flat Tire and Installing
the Spare Tire
1. Use the wheel wrench
to loosen all the wheel
nuts. Turn the wheel
wrench
counterclockwise to
loosen the wheel nuts.
Don’t remove
them yet.
la r Front Location RL.
Location
2. Position the jack under the vehicle. If the flat tire is
on the front of the vehicle, position the jack on the
frame behind the flat tire.
If the flat tire is on the rear, position the jack under
the rear axle between the spring anchor and the
shock absorber bracket.
Notice: If your vehicle is equipped with
QUADRASTEERTM avoid contact with tie rods and
tie rod boots when jacking the vehicle.
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Getting under a vehicle when it is jacked 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.
i I
Rai-..lg 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.
I
Front Position
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Rear Position
3. Make sure the jack head is positioned so that the
rear axle
is resting securely between the grooves
that are on the jack head. Turn the wheel
wrench clockwise to raise the vehicle. Raise the
vehicle far enough
off the ground so there is enough
room for the spare tire to
fit under the wheel well.
4. Remove all the wheel
nuts and take
off the
flat tire.
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. Remove any rust or dirt
from the wheel bolts,
mounting surfaces
and spare wheel.
Never use
oil or grease on studs or nuts. It
you do, the nuts might come loose. Your wheel
could fall
off, causing a serious accident.
6. After mounting the
spare, put the wheel
nuts back on with
the rounded end
of the
nuts toward the
wheel. Tighten each
wheel nut by hand.
Then use the wheel
wrench until the wheel is held against
the hub.
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