clock GMC YUKON XL 2007 Owner's Guide

9. Turn the wheel wrench counterclockwise to
lower the vehicle. Lower the jack completely.
{CAUTION:
Incorrect wheel nuts or improperly
tightened wheel nuts can cause the wheel
to come 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
the proper torque specication. See
Capacities and Specifications on page 548
for wheel nut torque specication.
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 specication. See
Capacities and Specifications on page 548for
the wheel nut torque specication.10. Tighten the nuts rmly in a crisscross
sequence as shown by turning the wheel
wrench clockwise.
When you reinstall the regular wheel and tire, you
must also reinstall the either the center cap, or
bolt-on hub cap, depending on what your vehicle
has. For center caps, place the cap on the
wheel and tap it into place until it seats ush with
the wheel. The cap only goes on one way. Be
sure to line up the tab on the center cap with the
indentation on the wheel. For bolt-on hub caps,
align the plastic nut caps with the wheel nuts and
then tighten by hand. Then use the wheel
wrench to tighten.
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Secondary Latch System
Your vehicle has an underbody-mounted tire hoist
assembly which has a secondary latch system.
It is designed to stop the spare tire from suddenly
falling off your vehicle. For the secondary latch
to work, the spare tire must be installed with
the valve stem pointing down. SeeStoring a Flat
or Spare Tire and Tools on page 522.
{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:
1. Check under the
vehicle to see if the
cable end is
visible. If the cable
is not visible,
proceed to Step 6.
2. If it is visible, rst 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 wheel wrench
counterclockwise three or four turns.
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4. Repeat this procedure at least two times.
If the spare tire lowers to the ground,
continue with Step 5 ofRemoving the Spare
Tire and Tools on page 509.
5. If the spare tire does not lower, turn the wheel
wrench counterclockwise until approximately
6 inches (15 cm) of cable is exposed.
6. Stand the wheel blocks on their shortest ends,
with the backs facing each other.
7. Place the bottom
edge of the jack (A)
on the wheel
blocks (B),
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 toward the
front of the rear bumper.
520

9. Position the center lift point of the jack under
the center of the spare tire.
10. Turn the wheel wrench clockwise to raise the
jack until it lifts the end tting.
11. Continue raising the jack until the spare tire
stops moving upward and is held rmly in
place so that the secondary latch has released
and the spare tire is balancing on the jack.
12. 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.
{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 the spare.
13. Disconnect the jack handle from the jack and
carefully remove the jack. with the other hand.
14. Use one hand to push against the spare while
rmly pulling the jack out from under the
spare tire with the other hand. If the spare tire
is hanging from the cable, insert the hoist
end of the 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.
521

15. Tilt the tire
retainer (G) at the
end of the cable and
pull it through the
wheel opening. Pull
the tire out from
under the vehicle.
16. Turn the wheel wrench in the hoist shaft hole
in the bumper clockwise to raise the cable
back up if the cable is hanging under
the vehicle.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare or
at tire using the hoist assembly until it has
been replaced.
To continue changing the at tire, seeRemoving
the Flat Tire and Installing the Spare Tire on
page 513.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.
Notice:Storing an aluminum wheel with a at
tire under your vehicle for an extended period of
time or with the valve stem pointing up may
damage the wheel. Always stow the wheel with
the valve stem pointing down and have the
wheel/tire repaired as soon as possible.
Store the tire under the rear of the vehicle in the
spare tire carrier. Refer to the following graphics
and instructions to help you:
522

3. Assemble the two jack handle extensions (D)
and wheel wrench (E) as shown.
4. Insert the open end
of the extension (I)
through the hole in
the rear bumper (J)
(hoist shaft
access hole).
5. Raise the tire part way upward. Make sure the
retainer is seated in the wheel opening.6. Raise the tire fully against the underside of
the vehicle by turning the wheel wrench
clockwise until you hear two clicks or feel it
skip twice. You cannot overtighten the cable.
7. Make sure the tire is stored securely. Push,
pull (A), and then try to turn (B) the tire. If the
tire moves, use the wheel wrench to tighten
the cable.
8. Reinstall the spare tire lock.
9. Reinstall the hoist shaft access cover.
524

To store the tools, do the following.
A. Wheel Blocks
B. Tool Bag with Jack
Tools
C. Retaining Bracket
D. Wing Nut Retaining
Tool BagE. Jack
F. Wing Nut
Retaining Wheel
Blocks
G. Wing Nut on Jack1. Return the tools (wheel wrench, jack handle,
and jack handle extensions) to the tool bag (B).
2. Assemble wheel blocks (A) and jack (E)
together with the wing nut (F).
3. Position the jack (E) and wheel blocks (A) in
the driver’s side trim panel over the
wheelhouse.
4. Turn the wing nut (G) clockwise until the jack
is secured tight in the mounting bracket. Be
sure to position the holes in the base of
the jack onto the pin in the mounting bracket.
5. Use the retaining bracket (C) to fasten the tool
bag (B) on the stud and turn the wing nut (D)
clockwise to secure.
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