spare tire GMC ACADIA 2012 User Guide

Black plate (50,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-50 Vehicle Care
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated
every 12 000 km (7,500 mi).
SeeMaintenance Schedule on
page 11‑3.
Tires are rotated to achieve a
uniform wear for all tires.
The first rotation is the most
important.
Any time unusual wear is
noticed, rotate the tires as soon
as possible and check the
wheel alignment. Also check
for damaged tires or wheels.
See When It Is Time for New
Tires on page 10‑51 andWheel
Replacement on page 10‑56.
Use this rotation pattern when
rotating the tires.
If the vehicle has a compact
spare tire, do not include it in
the tire rotation.
Adjust the front and rear tires
to the recommended inflation
pressure on the Tire and
Loading Information label after
the tires have been rotated.

Black plate (51,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-51
SeeTire Pressure on
page 10‑44 andVehicle Load
Limits on page 9‑10.
Reset the Tire Pressure Monitor
System. See Tire Pressure
Monitor Operation on
page 10‑46.
Check that all wheel nuts are
properly tightened. See “Wheel
Nut Torque” underCapacities
and Specifications on
page 12‑2.
{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.
(Continued)
WARNING (Continued)
In an emergency, a cloth or a
paper towel can be used;
however, use a scraper or wire
brush later to remove all rust
or dirt.
Lightly coat the center of the
wheel hub with wheel bearing
grease after a wheel change or
tire rotation to prevent corrosion
or rust build-up. Do not get
grease on the flat wheel
mounting surface or on the
wheel nuts or bolts.
Check that the spare tire, if the
vehicle has one, is stored
properly. Push, pull, and then try
to rotate or turn the tire. If it
moves, tighten the cable. See
Tire Changing on page 10‑68.
When It Is Time for
New Tires
Factors such as maintenance,
temperatures, driving speeds,
vehicle loading, and road conditions
affect the wear rate of the tires.
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. See Tire
Inspection on page 10‑50 andTire
Rotation on page 10‑50 for more
information.

Black plate (52,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-52 Vehicle Care
The rubber in tires ages over time.
This also applies for the spare tire,
if the vehicle has one, even if it is
never used. Multiple conditions
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. Tires will typically need
to be replaced due to wear before
they may need to be replaced
due to age. Consult the tire
manufacturer for more information
on when tires should be replaced.
Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle.
Park a vehicle that will be stored for
at least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be
free of grease, gasoline, or other
substances that can deteriorate
rubber.Parking for an extended period can
cause flat spots on the tires that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tires
or raise the vehicle to reduce the
weight from the tires.
Buying New Tires
GM has developed and
matched specific tires for the
vehicle. The original equipment
tires installed were designed
to meet General Motors Tire
Performance Criteria
Specification (TPC Spec)
system rating. When
replacement tires are needed,
GM strongly recommends
buying tires with the same
TPC Spec rating.
GM's exclusive TPC Spec
system considers over a
dozen critical specifications that
impact the overall performance
of the vehicle, including brake
system performance, ride and
handling, traction control, and
tire pressure monitoring
performance. GM's TPC Spec
number is molded onto the tire's
sidewall near the tire size. If the
tires have an all‐season tread
design, the TPC Spec number
will be followed by MS for mud
and snow. See
Tire Sidewall
Labeling on page 10‑38 for
additional information.
GM recommends replacing
all the tires at the same time.
Uniform tread depth on all
tires will help to maintain the
performance of the vehicle.

Black plate (55,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-55
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.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
a half (1½) times as well on the
government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the
norm due to variations in
driving habits, service practices
and differences in road
characteristics and climate.
Traction
–AA, A, B, C
The traction grades, from
highest to lowest, are AA, A, B,
and C. Those grades represent
the tire's ability to stop on wet
pavement as measured under
controlled conditions on
specified government test
surfaces of asphalt and
concrete. A tire marked C may
have poor traction performance.
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction
tests, and does not include
acceleration, cornering,
hydroplaning, or peak traction
characteristics.

Black plate (59,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-59
{WARNING
Changing a tire can be
dangerous. The vehicle can
slip off the jack and roll over or
fall causing injury or death.
Find a level place to change the
tire. To help prevent the vehicle
from moving:1. Set the parking brake firmly.
2. Put an automatic transmission in P (Park) or
a manual transmission in
1 (First) or R (Reverse).
3. Turn off the engine and do not restart while the vehicle
is raised.
(Continued)
WARNING (Continued)
4. Do not allow passengers toremain in the vehicle.
5. Place wheel blocks on both sides of the tire at the
opposite corner of the tire
being changed.
This vehicle may come with a jack
and spare tire or a tire sealant and
compressor kit. To use the jacking
equipment to change a spare tire
safely, follow the instructions below.
Then see Tire Changing on
page 10‑68. To use the tire sealant
and compressor kit, see Tire
Sealant and Compressor Kit on
page 10‑60. 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 repair or change a tire.

Black plate (60,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-60 Vehicle Care
Tire Sealant and
Compressor Kit
{WARNING
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area
that has no fresh air ventilation.
For more information, seeEngine
Exhaust on page 9‑22.
{WARNING
Overinflating a tire could cause
the tire to rupture and you or
others could be injured. Be sure
to read and follow the tire
sealant and compressor kit
instructions and inflate the tire
to its recommended pressure.
Do not exceed the recommended
pressure.
{WARNING
Storing the tire sealant and
compressor kit 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 the tire
sealant and compressor kit in its
original location. If this vehicle has a tire sealant
and compressor kit, there may not
be a spare tire and tire changing
equipment, and on some vehicles
there may not be a place to store
a tire.
The tire sealant and compressor
can be used to temporarily seal
punctures up to 6 mm (¼ in) in the
tread area of the tire. It can also be
used to inflate an underinflated tire.
If the tire has been separated from
the wheel, has damaged sidewalls,
or has a large puncture, the tire is
too severely damaged for the tire
sealant and compressor kit to be
effective. See
Roadside Assistance
Program (U.S. and Canada) on
page 13‑8 orRoadside Assistance
Program (Mexico) on page 13‑10.
Read and follow all of the tire
sealant and compressor kit
instructions.

Black plate (68,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-68 Vehicle Care
Storing the Tire Sealant
and Compressor Kit
The tire sealant and compressor
kit is located in the storage
compartment on the driver side,
at the rear of the vehicle.
1. Press down on the latch tab andpull the cover off to access the
storage compartment. 2. Press the two tabs on the quick
release buckle to release the tire
sealant and compressor kit
strap.
3. Remove the sealant and compressor kit from its tray.
To store the tire sealant and
compressor kit, reverse the steps.
Tire Changing
Removing Tools
The tools needed to remove the
spare tire are located in the storage
compartment on the driver side,
at the rear of the vehicle.
1. Open the jack storage compartment by pulling on the
latch tab, located toward the rear
of the vehicle, and pulling the
cover off.A. Tool Bag
B. Wing Bolt
C. Jack
2. Remove the wing bolt (B) by turning it counterclockwise.
3. Push the jack (C) up out of the holding bracket and remove the
tool bag (A).
4. Turn the jack on its side, with the bottom facing toward you.
5. Pull the jack straight out, bottom first.

Black plate (69,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-69
A. Jack
B. Wrench (Three-Piece Shown,One-Piece Similar)
The tools you will be using include
the jack (A) and wrench (B).
Removing the Spare Tire
The compact spare tire is located
under the vehicle, in front of the rear
bumper. See Compact Spare Tire
on page 10‑77 for more information.
A. Rear Convenience Center
B. Wrench (Three-Piece Shown,
One-Piece Similar)
C. Carpet Cutout
D. Hoist Shaft
E. Compact Spare Tire
F. Retainer 1. Open the storage compartment
door of the convenience
center (A) that is nearest the
liftgate.
2. Open the carpet cutout (C) that is located through the hole of the
storage compartment.
3. Attach the wrench (B) into the hoist shaft (D).
4. Turn the wrench (B) counterclockwise to lower the
spare tire (E) to the ground.
Continue turning the wrench until
the spare tire can be pulled out
from under the vehicle.

Black plate (70,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-70 Vehicle Care
5. Tilt the retainer and slip itthrough the wheel opening to
remove the spare tire from the
cable.
6. Turn the wrench clockwise to raise the cable back up after
removing the spare tire.
Do not store a full‐size or a flat
road tire under the vehicle.
See “Storing the Spare Tire”
and “Storing the Flat Tire” later
in this section.
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check before proceeding. See If a Tire Goes
Flat on page 10‑58 for more
information.
2. If the vehicle has a wheel cover, loosen the plastic nut caps with
the wheel wrench. They will not
come off. Then, using the flat
end of the wheel wrench, pry
along the edge of the cover until
it comes off. Be careful; the
edges may be sharp. Do not try
to remove the cover with your
bare hands.
Store the wheel cover securely
in the rear of the vehicle until
you have the flat tire repaired or
replaced.
If the vehicle has aluminum
wheels, remove the wheel nut
caps using the wheel wrench.
3. Loosen the wheel nuts —but do
not remove them —using the
wrench. For wheels with a wheel
lock key, use the wheel lock key
between the lock nut and
wrench. The key is supplied in
the front passenger door pocket.

Black plate (71,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-71
Notice:If this vehicle has wheel
locks and an impact wrench is
used to remove the wheel nuts,
the lock nut or wheel lock key
could be damaged. Do not use an
impact wrench to remove the
wheel nuts if this vehicle has
wheel locks.
4. To identify the appropriate
jacking location, find the
triangle (A) about 30.5 cm (12 in)
from the front tire or (B) about
27 cm (10.5 in) from the
rear tire.
The triangle is located near each
wheel on the vehicle's exterior.
Notice: If a jack is used to raise
the vehicle without positioning it
correctly, the vehicle could be
damaged. When raising the
vehicle on a jack, avoid contact
with the rear axle control arms. 5. Attach the wrench to the jack,
and turn the wrench clockwise to
raise the jack head 7.6 cm (3 in).
6. Do not raise the vehicle yet. Put the compact spare tire near you.
{WARNING
Getting under a vehicle when it is
lifted on a jack 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.