2010 GMC YUKON Owner's Manual

Rear Position–All Other Models
Rear Tire Flat: If the flat tire is on a rear tire
of the vehicle, you will need to use the jack
handle (B) and both jack handle extensions (C).
Attach the wheel wrench (D) to the jack handle
extensions (C). Attach the jack handle (B) to the
jack (A). Use the jacking pad provided on the rear
axle. Turn the wheel wrench (D) clockwise to raise
the vehicle. Raise the vehicle far enough off the
ground so there is enough room for the spare tire
to clear the ground.
{WARNING:
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.
{WARNING:
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.
6-97

5. Remove all of thewheel nuts.
6. Take off the flat tire.
7. Remove any rust or dirt from the wheel bolts,
mounting surfaces,
and spare wheel.
{WARNING:
Rust or dirt on a wheel, or on the parts to which it
is fastened, can make wheel nuts become loose
after time. The wheel could come off and cause
an accident. When changing a wheel, remove any
rust or dirt from places where the wheel attaches
to the vehicle. In an emergency, use a cloth or
a paper towel to do this; but be sure to use a
scraper or wire brush later, if needed, to get all
the rust or dirt off. See Changing a Flat Tire
on
page 6‑88
.
8. Put the wheel nuts back on with the rounded end of the nuts toward the wheel after mounting the
spare tire.
{WARNING:
Never use oil or grease on bolts or nuts because
the nuts might come loose. The vehicle's wheel
could fall off, causing a crash.
6-98

9. Tighten each wheel nut by hand. Then use thewheel wrench to tighten the nuts until the wheel is
held against the hub.
10. Turn the wheel wrench counterclockwise to lower the vehicle. Lower the jack completely.
11. Tighten the nuts firmly in a crisscross sequence as shown by turning the wheel wrench clockwise.
{WARNING:
Wheel nuts that are improperly or incorrectly
tightened can cause the wheels to become loose
or come off. The wheel nuts should be tightened
(Continued)
WARNING: (Continued)
with a torque wrench to the proper torque
specification after replacing. Follow the torque
specification supplied by the aftermarket
manufacturer when using accessory locking
wheel nuts. SeeCapacities and Specifications
on
page 6‑126
for original equipment wheel nut
torque specifications.
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. See Capacities and
Specifications
on page 6‑126for the wheel nut
torque specification.
When you reinstall the regular wheel and tire, you must
also reinstall either the center cap or the bolt-on hub
cap, depending on which your vehicle has.
.For center caps, line up the tab on the center cap
with the slot in the wheel. The cap only goes in
one way. Place the cap on the wheel and press
until it snaps into place.
6-99

.For bolt-on hub caps, line up the plastic nut caps
with the wheel nuts and tighten clockwise by hand
to get them started. Then tighten with the wheel
wrench until snug.
Secondary Latch System
Your vehicle has an underbody-mounted tire hoist
assembly equipped with 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 must be installed with the valve stem pointing
down. SeeStoring a Flat or Spare Tire and Tools
on
page 6‑103.
{WARNING:
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 next. To release the spare tire from the secondary latch:
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, 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.
6-100

3. Loosen the cable by turning the wrenchcounterclockwise three or four turns.
4. Repeat this procedure at least two times. If the spare tire lowers to the ground, continue with
Step 5 of Removing the Spare Tire and Tools
on
page 6‑89.
5. If the spare does not lower, turn the 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 bottomedge of the jack (A) on
the wheel blocks (B),
separating them so that
the jack is balanced
securely.
6-101

8. Attach the jack handle, extension, and wheelwrench to the jack and place it (with the wheel
blocks) under the vehicle toward the front of the
rear bumper.9. Position the center lift point of the jack under thecenter of the spare tire.
10. Turn the wrench clockwise to raise the jack until it lifts the end fitting.
11. 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.
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.
6-102

{WARNING:
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.
13. 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 tire with the other hand.
If the spare tire is hanging from the cable, insert
the hoist end of 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.
14. 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 flat tire using
the hoist assembly until it has been inspected and/or
replaced.
To continue changing the flat tire, see
Removing the
Flat Tire and Installing the Spare Tire on page 6‑94.
Storing a Flat or Spare Tire and
Tools
{WARNING:
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 flat tire
under your vehicle for an extended period of time
or with the valve stem pointing up can damage the
wheel. Always stow the wheel with the valve stem
pointing down and have the wheel/tire repaired as
soon as possible.
6-103

Store the tire under the rear of the vehicle in the spare
tire carrier. Refer to the following graphics and
instructions to help you:
A. Hoist Assembly
B. Hoist Shaft
C. Hoist Shaft Access Cover/Hole D. Jack Handle
Extensions
E. Wheel Wrench F. Hoist Cable G. Tire/Wheel Retainer
H. Spare Tire/Flat Tire (Valve Stem Pointed Down)
I. Hoist Shaft Access Hole J. Hoist End of
Extension Tool
K. Spare Tire Lock
1. Put the tire (H) on the ground at the rear of the vehicle with the valve stem pointed down, and to
the rear.2. Tilt the tire toward the vehicle. Separate the tire/wheel retainer (G) from the guide pin. Pull the pin
through the center of the wheel. Tilt the retainer
down through the center wheel opening.
Make sure the retainer is fully seated across the
underside of the wheel.
6-104