2008 PONTIAC GRAND PRIX 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 may 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, traction control, and
electronic stability control, the performance of these
systems can be affected.
{CAUTION:
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
specic wheel and tire systems developed for
your vehicle, and have them properly installed
by a GM certied technician.
SeeBuying New Tires on page 5-78andAccessories
and Modifications on page 5-3for 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.
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.
5-80

Accessing the Tire Inator Kit
To access the tire inator kit:
1. Open the trunk. SeeTrunk on page 2-14for more
information.
2. Locate the tire inator kit by lifting up the carpet.
3. Remove the inator kit
cover by turning the
center nut
counterclockwise.
4. Remove the inator kit by pulling it straight out of
the foam container.
5-88

Tire Sealant
The kit contains a liquid sealant that when injected into
a at tire, may temporarily repair nail holes or cuts in the
tread area of the tire. The tire sealant cannot repair tire
damage caused while driving on a at tire or a tire that
has had a “blow out” or a tire that has punctures in the
sidewall areas. The tire sealant solution is to be used for
a single tire and can only be used once.
Check the tire sealant expiration date on the sealant
canister. The sealant may not be as effective beyond the
expiration date. If needed, see your dealer/retailer for
a replacement canister.
After temporarily repairing a tire using the tire sealant,
take your vehicle to your dealer/retailer to have the
tire inspected and repaired.
Using the Tire Inator Kit
To use the tire inator kit:
1. Place the inator kit on the ground and unwrap the
sealant lling hose from the compressor.
2. Remove the air compressor accessory plug from
the unit. To do this, pull the top portion of the
wrapped cord out rst, then the bottom, then unsnap
the plug. Do not insert the plug into an accessory
outlet yet.
3. Remove the valve stem cap from the at tire by
turning it counterclockwise.
If an object, such as a nail, has penetrated the tire,
do not remove it.
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4. Attach the sealant lling hose (A) onto the tire valve
stem. Turn it clockwise until it is tight.
Make sure the inator kit on/off switch (B) is in the
O (off) position.
5. Plug the air compressor accessory plug (C) into an
accessory power outlet in the vehicle. See
Accessory Power Outlet(s) on page 3-26for more
information.
{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 2-36.
6. Start the vehicle. SeeStarting the Engine on
page 2-25for more information. The vehicle must be
running while using the air compressor.
{CAUTION:
Inating something too much can make it
explode, 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).
7. Move the inator kit switch to the I (on) position.
The inator kit will force sealant and air into the
tire. Sealant may leak from the puncture hole until
the vehicle is driven and the hole has sealed.
5-90

8. Make sure there is a proper connection between
the tire valve stem and the sealant lling hose by
looking at the air pressure gage. If there is not a
pressure reading while the compressor is running,
the connection between the inator kit and the
tire is bad.
Check the attachment between the sealant lling
hose and the tire valve stem.
9. Inate the tire up to the recommended ination
pressure, found on the Tire and Loading Information
label located on the vehicle’s center pillar (B-pillar)
below the vehicle’s door latch, using the air pressure
gage on the top of the unit as a guide.
The pressure gage reading is slightly high while the
compressor is on. Turn the compressor off to get
an accurate pressure reading.
Notice:If the recommended pressure cannot be
reached after 15 minutes, the vehicle should not be
driven. The tire is too severely damaged and
cannot be inated or sealed with the tire sealant
and compressor kit. Remove the air compressor
accessory plug from the accessory power outlet and
unscrew the sealant/air hose from the tire valve or
tire pressure monitoring sensor valve. SeeRoadside
Assistance Program on page 7-6.10. Move the inator kit switch to the O (off) position
once the correct tire pressure is obtained.
11. Turn off the engine.
12. Unplug the air compressor accessory plug from the
accessory power outlet in the vehicle.
13. Disconnect the sealant lling hose from the tire
valve stem, by turning it counterclockwise, and
replace the tire valve stem cap.
Be careful when handling the tire inator
components as they may be hot after usage.
14. Wrap the sealant lling hose around the air
compressor channel to stow it in its original location.
5-91

15. Stow the air compressor accessory plug back in the
air compressor. To do this, wrap the air compressor
accessory plug, snap in the plug, and then push in
the bottom and then the top of the wrapped air
compressor accessory plug.
16. If the at tire was able
to inate to the
recommended ination
pressure, remove the
maximum speed label
from the sealant
canister.
Place it in a highly visible location such as the
inside of the upper left corner of the windshield or
to the face of the radio/clock.
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 the proper place.
17. Return the equipment to the proper storage location
in the trunk of your vehicle.
18. Immediately drive the vehicle 5 miles (8 km) to
distribute the sealant evenly in the tire. Stop at a
safe location and check the tire pressure. Refer to
Steps 1 through 8 under “Using the Air Compressor
without Sealant” next in this section. If the tire
pressure has fallen more than 10 psi (68 kPa) below
the recommended ination pressure, stop driving
the vehicle. The tire is too damaged for the sealant to
work. SeeRoadside Assistance Program on
page 7-6.
If the tire pressure has not dropped more than
10 psi (68 kPa) from the recommended ination
pressure, you can inate the tire back up to the
recommended ination pressure.
5-92

19. Dispose of the sealant canister at your
dealer/retailer or in accordance with your local state
codes and practices.
After using the sealant canister, replace it with a
new canister from your dealer/retailer.
20. After temporarily repairing a tire with the emergency
at tire repair kit, take your vehicle to your
dealer/retailer to have the tire inspected and
repaired.
Using the Air Compressor without
Sealant
To use the air compressor by itself to inate a tire:
1. Remove the air compressor accessory plug from
the air compressor. 2. Unlock the air compressor hose from the sealant
canister by pulling up on the lever.
3. Pull the air compressor inator hose from the
sealant canister.
4. Push the air compressor inator hose onto the tire
valve stem and push the lever down to secure
in place.
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9. Inate the tire up to the recommended ination
pressure using the air pressure gage on the top
of the unit as a guide.
10. Turn off the air compressor by moving the switch to
the O (off) position.
{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 the proper place.
11. Disconnect the compressor inator hose and wrap
the hose in the bottom of the inator kit.
12. Place the equipment in the original location in the
trunk of your vehicle.
Removal and Installation of the Sealant
Canister
To remove the sealant canister:
1. Unlock the air compressor inator hose from the
sealant canister by pulling the lever up.
2. Disconnect the air compressor inator hose from
the sealant canister.
3. Unwrap the sealant lling hose from the
compressor.
5-95