GMC SIERRA DENALI 2010 Owners Manual

WARNING: (Continued)
4. Turn off the engine and do not restart whilethe vehicle is raised.
5. Do not allow passengers to remain in the vehicle.
To be even more certain the vehicle will not move,
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, at the opposite end of
the vehicle.
When the vehicle has a flat tire (B), use the following
example as a guide to assist you in the placement of
wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
6-87

Removing the Spare Tire and Tools
A. Wing Nut RetainingWheel Blocks
B. Wheel Blocks
C. Retaining Bolt
D. Jack E. Jack Knob
F. Tool Kit and Jack Tools
G. Retaining Bracket and Wing Nut The equipment you will need is located under the
passenger side second row seat. The spare tire is
located underneath the vehicle.
1. Fold the second row seat cushion up to access the jack and tools.
2. Release the jack (D) from its holder by turning the jack knob (E) on the jack counterclockwise to lower
the jack head slightly.
3. Remove the wheel blocks (B) and the retaining bolt (C) by turning the wing nut (A)
counterclockwise.
4. Remove the wing nut (G) used to retain the storage bag and tools. To remove it, turn it
counterclockwise.
Use the jack handle extensions and the wheel wrench
to remove the underbody-mounted spare tire.
6-88

A. Spare Tire (ValveStem Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire/Wheel Retainer E. Hoist Shaft F. Hoist End of Extension Tool G. Hoist Shaft Access Hole
H. Wheel Wrench I. Jack Handle Extensions
J. Spare Tire Lock (If Equipped) 1. Open the spare tire hoist access hole cover on the
bumper and use the ignition key to remove the
spare tire lock. To remove the spare tire lock, insert
the ignition key, turn it clockwise and pull the lock
straight out.2. Assemble the wheel wrench (H) and the two jack
handle extensions (I) as shown.
6-89

3. Insert the hoist end(open end) (F) of the
extension through the
hole (G) in the rear
bumper.
Be sure the hoist end of the extension connects to
the hoist shaft (E). The ribbed square end of the
extension is used to lower the spare tire.
4. Turn the wheel wrench (H) 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.
If the spare tire does not lower to the ground, the
secondary latch, if the vehicle has one, may be
engaged causing the tire not to lower. See
Secondary Latch System on page 6‑97.5. Use the wheel wrenchwhich has a hook that
lets you pull the hoist
cable toward you to
assist in reaching the
spare tire.
6-90

6. Tilt the tire toward the vehicle with some slack inthe cable to allow access to the tire/wheel
retainer (D). Separate the retainer from the guide
pin by sliding the retainer up the pin while pressing
down on the latch.
Once the retainer is separated from the pin, tilt the
retainer and pull it through the center of the wheel
along with the cable and latch.
7. Put the spare tire near the flat tire.
6-91

Removing the Flat Tire and Installing
the Spare Tire
Use the following pictures and instructions to remove
the flat tire and raise the vehicle.
The tools you will be using include the jack (A), the
wheel blocks (B), the jack handle (C), the jack handle
extensions (D), and the wheel wrench (E).1. Do a safety check before proceeding. See Changing a Flat Tire
on page 6‑86for more
information.
2. Remove the center cap by placing the chisel end of the wheel wrench in the slot on the wheel and
gently prying the cap out.
6-92

3. Use the wheel wrench to loosen all the wheel nuts.Turn the wheel wrench counterclockwise to loosen
the wheel nuts. Do not remove the wheel nuts yet.
{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.
4. 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.
6-93

Front PositionRear Position
6-94

5. Remove all the wheelnuts and take off the
flat tire.
{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 you
change a wheel, remove any rust or dirt from
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 needed, to get all the rust or dirt off. See
Changing a Flat Tire
on page 6‑86.
6. Remove any rust or dirtfrom the wheel bolts,
mounting surfaces and
spare wheel.
6-95

{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.
7. Put the wheel nutsback on with the
rounded end of the
nuts toward the wheel
after mounting the
spare. Tighten each
wheel nut by hand.
Then use the wheel
wrench to tighten the
nuts until the wheel is
held against the hub.
8. Turn the wheel wrench counterclockwise to lower the vehicle. Lower the jack completely.
{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
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. See Capacities and Specifications
on
page 6‑122
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 6‑122for the wheel nut torque
specification.
6-96