2008 PONTIAC G8 trunk

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 inate an
underinated tire. The vehicle must
be driven for ve miles (8 kilometers)
after the tire is sealed and inated 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

11. Unplug the air compressor
accessory plug (B) from the
accessory power outlet in
the vehicle.
12. Turn the sealant/air hose (E)
counterclockwise to remove.
13. Replace the tire valve
stem cap.
14. Stow the sealant/air hose (E)
and air compressor accessory
plug (B) in their original
locations.
15. If the at tire was able to be
inated to the recommended
ination pressure, remove
the maximum speed label from
the sealant canister and
place it in a highly visible
location.The maximum speed label
reminds you to drive cautiously
and not to exceed 55 mph
(90 km/h) until you have
the damaged tire inspected and
repaired.
{CAUTION
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.
16. Return the equipment to its
original storage location in
the trunk.
17. Immediately drive the vehicle
5 miles (8 km) to distribute the
sealant evenly in the tire.18. Stop at a safe location and
check the tire pressure, refer
to Steps 1 through 9 under
“Using the Tire Sealant
and Compressor Kit without
Sealant to Inate an
Underinated Tire” later in this
section.
If the tire pressure has fallen
more then 10 psi (68 kPa),
below the recommended
ination pressure, stop driving
the vehicle. The tire is too
severely damaged and the tire
sealant and compressor
cannot seal the tire. See
Roadside Assistance Program
on page 12-6if you need
assistance.
If the tire pressure has not
dropped more than 10 psi
(68 kPa) from the recommended
ination pressure, inate the tire
back up to the recommended
ination pressure.
Vehicle Service and Care 9-67
2008 - Pontiac G8 Owner Manual

{CAUTION
Idling the engine in a closed-in
place or with the climate
control system off can cause
deadly carbon monoxide (CO).
SeeEngine Exhaust on
page 8-12.
5. Start the vehicle. The vehicle
must be running while using
the air compressor.
{CAUTION
Overination could cause the
tire to rupture, and you or
others could be injured. Be
sure to read the inator
instructions, and inate the tire
to its recommended pressure.
Do not exceed 36 psi (248 kPa).6. Push the On/Off switch (G) to the
I (on) position.
Check the pressure gage (F). If
there is not a pressure reading
while the compressor is running,
check for leaks at the connection
between the hose and the tire
valve stem.
7. Inate the tire up to the
recommended ination pressure
using the air pressure gage (F)
on the top of the unit. See
Inflation - Tire Pressure on
page 9-46.
The pressure gage (F) reads
slightly high while the compressor
is on. Turn the compressor off to
get an accurate reading. The
compressor may be turned on
and off until the correct pressure
is reached.
8. Push the On/Off switch (G) to the
O (off) position.
Be careful while handling the tire
sealant and compressor kit as
they could be hot after usage.9. Unplug the air compressor
accessory plug (A) from the
accessory power outlet in the
vehicle and stow it in its original
location.
10. Disconnect the air-only hose (E)
from the tire valve stem and
stow it back in its original
location.
11. Replace the tire valve stem cap.
{CAUTION
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.
12. Place the equipment in the
original location in the trunk
of your vehicle.
Vehicle Service and Care 9-69
2008 - Pontiac G8 Owner Manual

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

Total Weight on Your Vehicle’s
Tires
Be sure your vehicle’s tires are
inated to the upper limit for cold
tires. You will nd these numbers on
the Tire-Loading Information label.
SeeLoading the Vehicle on
page 8-28. Then be sure you do not
go over the GVW limit for your
vehicle, including the weight of the
trailer tongue.
Hitches
It is important to have the correct
hitch equipment. Crosswinds,
large trucks going by and rough
roads are a few reasons why
you will need the right hitch. Here
are some rules to follow:
The rear bumper on your vehicle
is not intended for hitches. Do
not attach rental hitches or other
bumper-type hitches to it. Use
only a frame-mounted hitch
that does not attach to the
bumper.
Will you have to make any holes
in the body of your vehicle when
you install a trailer hitch? If you
do, then be sure to seal the holes
later when you remove the hitch.
If you do not seal them, deadly
carbon monoxide (CO) from your
exhaust can get into your vehicle.
SeeEngine Exhaust on
page 8-12. Dirt and water can
also enter the vehicle.
Safety Chains
You should always attach chains
between your vehicle and your
trailer. Cross the safety chains under
the tongue of the trailer so that the
tongue will not drop to the road if it
becomes separated from the hitch.
Instructions about safety chains
may be provided by the hitch
manufacturer or by the trailer
manufacturer. Follow the
manufacturer’s recommendation for
attaching safety chains and do not
attach them to the bumper. Alwaysleave just enough slack so you can
turn with your rig. And, never allow
safety chains to drag on the ground.
Trailer Brakes
Does your trailer have its own
brakes? Be sure to read and follow
the instructions for the trailer
brakes so you will be able to install,
adjust and maintain them properly.
Because you have anti-lock brakes,
do not tap into your vehicle’s brake
system. If you do, both brake
systems will not work well, or at all.
Trailer Wiring Harness
All of the electrical circuits required
for your trailer lighting system
can be accessed at the driver’s side
rear lamp connector. This connector
is located under the carpet on
the rear corner of the trunk
compartment.
9-88 Vehicle Service and Care
2008 - Pontiac G8 Owner Manual

(e)Make sure the safety belt
reminder light and safety belt
assemblies are working properly.
Look for any other loose or
damaged safety belt system parts. If
you see anything that might keep
a safety belt system from doing
its job, have it repaired. Have any
torn or frayed safety belts replaced.
Also see Airbag System Check
on page 1-31.
(f)Lubricate all key lock cylinders,
door hinges and latches, hood
hinges and latches and trunk lid
hinges and latches. More frequent
lubrication may be required
when exposed to a corrosive
environment. Applying silicone
grease on weatherstrips with a clean
cloth will make them last longer,
seal better, and not stick or squeak.
(g)Visually inspect belt for fraying,
excessive cracks, or obvious
damage. Replace belt if necessary.(h)Change automatic transmission
fluid and filter if the vehicle is
mainly driven under one or more of
these conditions:
In heavy city traffic where the
outside temperature regularly
reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer
towing.
Uses such as found in taxi,
police, or delivery service.
(i)Drain, flush, and refill cooling
system. This service can be
complex; you should have your
dealer/retailer perform this service.
See Engine Coolant on page 9-13 for
what to use. Inspect hoses. Clean
radiator, condenser, pressure cap,
and filler neck. Pressure test the
cooling system and pressure cap.(j)A fluid loss in any vehicle system
could indicate a problem. Have
the system inspected and repaired
and the fluid level checked. Add
fluid if needed.
(k)If you drive regularly under dusty
conditions, inspect the filter at
each engine oil change.
(l)If you drive regularly under dusty
conditions, the filter may require
replacement more often.
(m)Drain, flush, and refill brake
hydraulic system at a regular service
interval (IorII) every two years.
This service can be complex;
you should have your dealer/retailer
perform this service. See Brakes
on page 9-24.
11-8 Service and Maintenance
2008 - Pontiac G8 Owner Manual

Tires (cont.)
Pressure Monitor
Operation.....................9-51
Pressure Monitor System . . . 9-49
Removing the Flat Tire......9-73
Removing the Spare Tire
and Tools.....................9-72
Storing a Flat or Spare Tire
and Tools.....................9-78
Tire Sealant and
Compressor Kit .............9-64
Tire Sidewall Labeling .......9-40
Tire Terminology and
Denitions....................9-43
Uniform Tire Quality
Grading .......................9-59
Wheel Alignment and Tire
Balance .......................9-60
Wheel Replacement . . ........9-61
When It Is Time for
New Tires....................9-56Towing
Recreational Vehicle ..........9-85
Towing a Trailer................9-85
Your Vehicle.....................9-84
Transmission
Fluid, Automatic................9-13
Transmission Operation,
Automatic.......................... 8-6
Trunk . . ...............................2-10
Turn and Lane-Change
Signals............................. 4-7
Turn Signal/Multifunction
Lever . ............................... 4-4
U
Uniform Tire Quality
Grading...........................9-59
Using this Manual . .................... ii
V
Vehicle
Control............................8-14
Loading . ..........................8-28
Running While Parked . . . . . . . 8-12
Symbols.............................. iii
Vehicle Data Recording and
Privacy . . . . ......................12-16
Vehicle Identication
Number (VIN)...................10-1
Service Parts Identication
Label . ..........................10-1
Vehicle, Remote Start . . . . . . . . . . . . . 2-6
Ventilation Adjustment . . . . . . . . . . . . . 7-8
Visors.................................2-15
Voltmeter Gage....................4-15
INDEX i-9
2008 - Pontiac G8 Owner Manual