2010 GMC YUKON XL lock

Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this could
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability, and
resistance to rollover. Additionally, if your vehicle has
electronic systems such as anti‐lock brakes, rollover
airbags, traction control, and electronic stability control,
the performance of these systems can be affected.
{WARNING:
If you add different sized wheels, your vehicle
may not provide an acceptable level of
performance and safety if tires not recommended
for those wheels are selected. You may increase
the chance that you will crash and suffer serious
injury. Only use GM specific wheel and tire
systems developed for your vehicle, and have
them properly installed by a GM certified
technician.
See Buying New Tires
on page 6‑80andAccessories
and Modificationson page 6‑4for additional
information.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
The following information relates to the system
developed by the United States National
Highway Traffic Safety Administration (NHTSA),
which grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters
of 10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
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Changing a Flat Tire
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid manual for more information.
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on the hazard
warning flashers. SeeHazard Warning Flashers
on
page 4‑3.
{WARNING:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you or
other people. You and they could be badly injured
or even killed. Find a level place to change your
tire. To help prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put the shift lever in P (Park). (Continued)
WARNING: (Continued)
3. If you have a four-wheel-drive vehicle with aN (Neutral) transfer case position, be sure
the transfer case is in a drive gear —not in
N (Neutral).
4. Turn off the engine and do not restart while the vehicle is raised.
5. Do not allow passengers to remain in the vehicle.
6. Put the wheel 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).
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A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
Removing the Spare Tire and Tools
The equipment you will need to change a flat tire is
stored under the storage tray, which is located on the
driver side trim panel (over the rear wheelhouse).
Regular Wheelbase shown, Extended Wheelbase similar
1. Remove the tray to access the tools by pulling up on the finger depression under the jack symbol.
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2. Remove the wing nut (B) used to retain the toolbag by turning it counterclockwise.
3. Turn the knob (A) on the jack counterclockwise to release the jack and wheel blocks from the
bracket.
4. Remove the wheel blocks and the wheel block retainer by turning the wing nut (C)
counterclockwise. The tools you will be using include the following:
A. Jack
B. Wheel Blocks
C. Jack Handle D. Jack Handle Extensions
E. Wheel Wrench
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To access the spare tire, refer to the following graphics
and instructions:
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 (Valve
Stem Pointed Down)
I. Hoist Shaft Access Hole J. Hoist End of
Extension Tool
K. Spare Tire Lock
1. Open the hoist shaft access door (C) on the bumper to access the spare tire lock (K).
2. To remove the spare tire lock, insert the ignition key, turn it clockwise and then pull it straight out.3. Assemble the two jack handle extensions (D) andwheel wrench (E) as shown.
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4. Insert the open endof the extension (J)
through the hole in the
rear bumper (I) (hoist
shaft access hole).
Be sure the hoist end (J) of the extension (D)
connects to the hoist shaft (B). The ribbed square
end of the extension is used to lower the spare tire. 5. Turn the wheel wrench (E) counterclockwise to
lower the spare tire (H) 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 is engaged causing the tire not to
lower. See Secondary Latch System
on page 6‑100for more information.
6. Use the wheel wrench
hook that allows you
to pull the hoist cable
towards you, to assist
in reaching the
spare tire.
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Removing the Flat Tire and Installing
the Spare Tire
1. Do a safety check before proceeding.See Changing a Flat Tireon page 6‑88for more information.
2. If your vehicle has a center cap that covers the
wheel fasteners, place the chisel end of the wheel
wrench in the slot on the wheel and gently pry the
cap out. If the wheel has a bolt-on hub cap, loosen the
plastic nut caps by turning the wheel wrench
counterclockwise. The plastic nut caps will be
retained in the hub cap after it is removed from
the wheel.
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.
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Front Position–2500 Models
Front Tire Flat: If the flat tire is on a front tire of
the vehicle, you will need to use the jack handle
and only one jack handle extension. Attach the
wheel wrench to the jack handle extension. Attach
the jack handle to the jack (A). Position the jack
on the frame behind the flat tire where the frame
sections overlap. 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 clear the ground.Rear Position –1500 Models
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