2012 GMC ACADIA all wheel

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 (66,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-66 Vehicle Care
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 6‑4.
See If a Tire Goes Flat on
page 10‑58 for other important
safety warnings.
1. Remove the tire sealant and compressor kit from its storage
location. See Storing the Tire
Sealant and Compressor Kit on
page 10‑68.
2. Unwrap the air only hose (G) and the power plug (H).
3. Place the kit on the ground. Make sure the tire valve stem is
positioned close to the ground
so the hose will reach it.
4. Remove the tire valve stem cap from the flat tire by turning it
counterclockwise.
5. Attach the air only hose (G) onto the tire valve stem by turning it
clockwise until it is tight. 6. Plug the power plug (H) into the
accessory power outlet in the
vehicle. Unplug all items from
other accessory power outlets.
See Power Outlets on page 5‑9.
If the vehicle has an accessory
power outlet, do not use the
cigarette lighter.
If the vehicle only has a cigarette
lighter, use the cigarette lighter.
Do not pinch the power plug
cord in the door or window.
7. Start the vehicle. The vehicle must be running while using the
air compressor.
8. Turn the selector switch (A) clockwise to the Air Only
position.
9. Press the on/off (B) button to turn the compressor on.
The compressor will inflate the
tire with air only. 10. Inflate the tire to the
recommended inflation
pressure using the pressure
gauge (C). The recommended
inflation pressure can be found
on the Tire and Loading
Information label. See Tire
Pressure on page 10‑44.
The pressure gauge (C) may
read higher than the actual tire
pressure while the compressor
is on. Turn the compressor off
to get an accurate reading.
The compressor may be turned
on/off until the correct pressure
is reached.
If you inflate the tire higher
than the recommended
pressure you can adjust the
excess pressure by pressing
the pressure deflation
button (D), if equipped, until the
proper pressure reading is
reached. This option is only
functional when using the air
only hose (G).

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 (72,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-72 Vehicle Care
{WARNING
Raising the 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.
7. Raise the vehicle by turning the wrench clockwise in the jack.
Raise the vehicle far enough off
the ground so that there is
enough room for the spare tire
to fit under the wheel well.
8. Remove all the wheel nuts and the flat tire.
9. Remove the plastic spare tire
heat shield by pulling the rubber
latch. Store the plastic spare tire
heat shield. See “Storing the
Spare Tire” later in this section
for more information.
{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, a cloth or a
paper towel can be used;
however, use a scraper or wire
brush later to remove all rust
or dirt.
{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.

Black plate (74,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-74 Vehicle Care
Storing the Spare Tire
{WARNING
The underbody-mounted spare
tire needs to be stored with the
valve stem pointing down. If the
spare tire is stored with the valve
stem pointing upwards, the
secondary latch will not work
properly and the spare tire could
loosen and suddenly fall from the
vehicle. If this happened when
the vehicle was being driven, the
tire might contact a person or
another vehicle, causing injury
and damage to itself. Be sure the
underbody-mounted spare tire
is stored with the valve stem
pointing down.
{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.
To store the spare tire:
1. Lay the compact spare tire near the rear of the vehicle with the
valve stem down.
2. Reinstall the plastic spare tire heat shield on the compact
spare tire.
3. Slide the cable retainer through the center of the wheel and start
to raise the compact spare tire.
Make sure the retainer is fully
seated across the underside of
the wheel. 4. When the compact spare tire is
almost in the stored position,
turn the tire so the valve is
toward the rear of the vehicle.
This position helps when
checking the air pressure in the
compact spare tire.
5. Raise the tire fully against the underside of the vehicle.
Continue turning the wrench until
you feel more than two clicks.
This indicates that the compact
spare tire is secure and the
cable is tight. The spare tire
hoist cannot be overtightened.

Black plate (75,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-75
6. Make sure the tire is storedsecurely. Push, pull (A), and then
try to turn (B) the tire. If the tire
moves, use the wrench to
tighten the cable.
Storing the Flat Tire
1. Remove the cable package fromthe jack storage area.
2. Remove the small center cap by tapping the back of the cap with
the extension of the shaft, if the
vehicle has aluminum wheels. 3. Put the flat tire in the rear
storage area with the valve stem
pointing toward the rear of the
vehicle.
A. Cable
B. Liftgate Hinges
C. Spare Tire Heat Shield
D. Center of the Wheel
E. Door Striker
4. Pull the cable (A) through the door striker (E), the center of the
wheel (D), and the plastic spare
tire heat shield (C), as shown.
5. Hook the cable onto the outsideportion of the liftgate hinges (B).
6. Hook the other end of the cable onto the outside portion of the
liftgate hinge on the other side of
the vehicle.
7. Pull on the cable to make sure it is secure.

Black plate (76,1)GMC Acadia/Acadia Denali Owner Manual - 2012
10-76 Vehicle Care
8. Make sure the metal tube iscentered at the striker. Push the
tube toward the front of the
vehicle.
9. Close the liftgate and make sure it is latched properly.
Storing the Tools
A. Tool Bag
B. Wing Bolt
C. Jack
Put back all tools as they were
stored in the jack storage
compartment and put the
compartment cover back on.
1. Ensure that the bottom of thejack is facing toward you.
2. Replace the tool bag (A). 3. Turn the jack (C) on its side and
place down on the holding
bracket.
4. Reinstall the wing bolt (B) by turning clockwise.
5. To replace the cover, line up the tab at the front of the cover with
the notch in the cover opening.
Push the cover in place and
make sure that the rear clips are
in the slots and push the cover
closed.
Store the center cap or the plastic
bolt‐on wheel covers until a full size
tire is put back on the vehicle.
When you replace the compact
spare with a full‐size tire, reinstall
the bolt‐on wheel covers or the
center cap. Hand‐tighten them over
the wheel nuts, using the wrench.

Black plate (77,1)GMC Acadia/Acadia Denali Owner Manual - 2012
Vehicle Care 10-77
Compact Spare Tire
{WARNING
Driving with more than one
compact spare tire at a time
could result in loss of braking and
handling. This could lead to a
crash and you or others could be
injured. Use only one compact
spare tire at a time.
The compact spare tire, if the
vehicle has one, was fully inflated
when the vehicle was new, however,
it can lose air after a time. Check
the inflation pressure regularly.
It should be 420 kPa (60 psi).
After installing the compact spare
on the vehicle, stop as soon as
possible and make sure the
spare tire is correctly inflated. The compact spare is made to
perform well at speeds up to
105 km/h (65 mph) for distances up
to 5 000 km (3,000 mi), so you can
finish your trip and have the full-size
tire repaired or replaced at your
convenience. Of course, it is best to
replace the spare with a full-size tire
as soon as possible. The spare tire
will last longer and be in good
shape in case it is needed again.
Notice:
When the compact
spare is installed, do not take the
vehicle through an automatic
car wash with guide rails.
The compact spare can get
caught on the rails which can
damage the tire, wheel, and
other parts of the vehicle.
Do not use the compact spare on
other vehicles. And do not mix the compact spare
tire or wheel with other wheels or
tires. They will not fit. Keep the
spare tire and its wheel together.
The All-Wheel Drive (AWD) system
will be automatically disabled
when you use the compact spare.
To restore the AWD and prevent
excessive wear on the clutch in your
AWD, replace the compact spare
tire with a full-size tire as soon as
possible.
Notice:
Tire chains will not fit the
compact spare. Using them can
damage the vehicle and can
damage the chains too. Do not
use tire chains on the compact
spare.