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Tire Sealant and
Compressor Kit
(V8 Engine)
This vehicle has a tire sealant and
compressor kit in place of a jack or
spare tire. It is located in a foam
container in the trunk. The tire
sealant and compressor kit can be
used to repair a at tire by sealing
small punctures in the tread of the
tire. It can also be used to in ate an
underin ated tire. The vehicle must
be driven for ve miles (8 kilometers)
after the tire is sealed and in ated to
the recommended pressure to
ensure the sealant is distributed
evenly. For detailed instructions see
“Using the Tire Sealant and
Compressor Kit to Temporarily
Repair a Punctured Tire” later in this
section.The kit includes:
A. On/Off Switch
B. Air Compressor Accessory Plug
C. Air Compressor
D. Sealant Canister
E. Sealant/Air Hose
F. Air-only Hose
G. Pressure Gage
Tire Sealant
The sealant can temporarily seal a
small puncture up to 6 mm in
the tread area of the tire. The
sealant cannot seal sidewall
damage, large punctures, or a wheel
that has unseated from the wheel.
Read and follow the safe handling
instructions on the label adhered to
the sealant canister.
Check the tire sealant expiration
date on the sealant canister.
The sealant canister should be
replaced before its expiration date.
There is only enough sealant to
seal one tire. After usage, the
sealant canister and sealant/air hose
assembly must be replaced.
Replacement sealant canisters are
available from a dealer/retailer.
See “Removal and Installation of
Sealant Canister” later in this
section.
9-64 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual
Page 256 of 334
Removing the Spare Tire
and Tools
Spare Tire
The equipment you will need is
located in the rear storage area.
1. Open the trunk. SeeTrunk
on page 2-10.
2. Pull the handle of the spare
wheel cover strap straight up and
secure to the trunk lid.3. Turn the retainer nut
counterclockwise and remove the
spare tire.
4. Place the spare tire next to the
tire being changed.
5. The jack and tools are stored
below the spare tire.
9-72 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual
Page 257 of 334
Tools
A. Jack Handle
B. Nut Cap Tool
C. Wheel Wrench
D. Jack
1. Turn the second retainer nut
counterclockwise and remove
the panel.
2. Remove the tools from the tool
container.
3. Place the tools next to the tire
being changed.
Removing the Flat Tire
and Installing the
Spare Tire
1. If your vehicle has wheel bolt
caps, remove the caps. Store
the caps with the wheel cover.
2. Use the fully extended wheel
wrench to loosen all the
wheel nuts one-half turn
counterclockwise. Do not
remove them yet.
Vehicle Service and Care 9-73
2008 - Pontiac G8 Owner Manual
Page 258 of 334

Notice:Make sure that the jack
lift head is in the correct
position or you may damage your
vehicle. The repairs would not
be covered by your warranty.
3. Position the jack lift head at the
jack location nearest the at
tire. The location is indicated by
a mark on the bottom edge
of the vehicle. The jack must not
be used in any other positions.
Raise the jack until it engages
with the jacking point.4. Put the compact spare tire
near you.
{CAUTION
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.
{CAUTION
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 t
the jack lift head into the
proper location before raising
the vehicle.5. Fit the jack handle onto the jack
by sliding the hook through the
end of the jack.
9-74 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual
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The jack handle must be
unfolded at a right angle before it
is used.
6. Raise the vehicle by turning the
jack handle clockwise 180°.7. Pull the jack handle towards you.
8. Repeat Steps 7 and 8 until the
vehicle is far enough off the
ground so there is enough room
for the compact spare tire to
t under the vehicle.9. Remove all of the wheel nuts
and place them in a dry, clean
place to avoid getting dirt in
the threads.
Vehicle Service and Care 9-75
2008 - Pontiac G8 Owner Manual
Page 260 of 334

{CAUTION
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. SeeChanging a
Flat Tire (V6 Engine) on
page 9-71.10. Remove any rust or dirt from
the wheel bolts, mounting
surfaces and spare wheel.
11. Place the compact spare tire on
the wheel-mounting surface.
{CAUTION
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.
12. Reinstall the wheel nuts with
the rounded end of the nuts
toward the wheel. Tighten each
nut as much as possible
using the wheel wrench until
the wheel is held rmly against
the hub.
Use your free hand to prevent
the wheel from turning while
you are tightening.
13. Lower the vehicle by turning the
jack handle counterclockwise.
Lower the jack completely.
9-76 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual
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Storing a Flat or Spare
Tire and Tools
{CAUTION
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 a at or spare tire and
tools, do the following:
A. Jack Handle
B. Nut Cap Tool
C. Wheel Wrench
D. Jack1. Replace the jack and tools as
shown.
2. Turn the retainer nut clockwise to
tighten.
3. Remove the wheel center cap by
pushing it from the back.
4. Place the at tire face up into the
spare tire hub.
5. Turn the retainer nut clockwise to
secure it into place.
6. Put the load oor back in place.
The compact spare tire is for
temporary use only. Replace the
compact spare with a full-size tire as
soon as possible.
9-78 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual
Page 263 of 334