Page 336 of 455

5-33
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
11. Don't try to put a wheel cover on the compact spare
tire. It won't fit. Store the wheel cover securely in
the rear of the vehicle until you have the flat tire
repaired or replaced.
NOTICE:
Wheel covers won't fit on your compact spare.
If you try to put a wheel cover on your compact
spare, you could damage the cover or the spare.
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.
CAUTION:
The underbody-mounted spare tire needs to be
stored with the valve stem pointing down. If the
spare tire is stored with its valve stem pointing
upwards, its secondary latch won't work properly,
and the spare tire could loosen and suddenly fall
from your vehicle. If this happened when your
vehicle was being driven, the tire might contact
a person or another vehicle, causing injury and,
of course, damage to itself as well. Be sure the
underbody
-mounted spare tire is stored with its
valve stem pointing down.
Page 339 of 455

5-36
Storing the Flat Tire (Vehicles without the Stowable
Seat and without the Rear Convenience/Cargo Tray)
A. D-Ring
B. Wing Nut
C. J
-HookD. Valve Stem
E. Full
-Size Tire1. Flip up the D
-ring located in the rear cargo area.
2. Lay the tire in the rear cargo area of the vehicle with
the valve stem up with the center hole of the tire over
the D
-ring.
For vehicles with aluminum wheels, remove the
center trim cap by tapping the back of the cap with
the folding wrench.
3. Remove the J
-hook and the wing nut from the back
of the jack access door. Assemble the wing nut and
the J
-hook.
4. Install the wing nut and the J
-hook to the D-ring
through the center hole of the tire.
5. Tighten the wing nut to secure the tire to the floor.
Push and pull on the tire to make sure the tire is
secure and does not move.
6. Put back all tools as they were stored in the jack
storage compartment and put the compartment
cover back on.
To put the cover back on, slip the tabs on the side of the
cover into the cover opening. Push the cover in place
and push down the tabs on the cover so that it rests in
the groove. This secures the cover in place.
Page 340 of 455

5-37
Storing the Flat Tire (Vehicles with the Rear
Convenience/Cargo Tray) (Option)
A. D-Ring
B. Rear Convenience/
Cargo Tray
C. Wing Nut
D. J
-HookE. Full
-Size Tire
F. Cap on Bottom
of Storage
Compartment1. Open the center storage compartment door of the
rear convenience/cargo tray.
2. Remove the cap on the bottom of the storage
compartment and flip the D
-ring up.
3. Lay the tire on top of the center storage compartment
with the valve stem down. Make sure you can see the
D
-ring through the center hole of the tire.
4. Remove the J
-hook and the wing nut from the back
of the jack access door. Assemble the wing nut and
the J
-hook.
5. Install the wing nut and the J
-hook to the D-ring
through the center hole of the tire.
6. Tighten the wing nut to secure the tire to the floor.
Push and pull on the tire to make sure the tire is
secure and does not move.
7. Put back all tools as they were stored in the jack
storage compartment and put the compartment cover
back on.
To put the cover back on, slip the tabs on the side of the
cover into the cover opening. Push the cover in place
and push down the tabs on the cover so that it rests in
the groove. This secures the cover in place.
Page 341 of 455

5-38
Storing the Flat Tire (Vehicles with the
Stowable Seat) (Option)
A. Rear Convenience/
Cargo Tray
B. Full
-Size Tire
C. D
-RingD. Stowable Seat Strap
E. Cargo Net Hook
F. J
-Hook
G. Wing Nut1. If the seatback is not in an upright position, move it
to an upright position.
2. There is a strap attached to each side of the stowable
seat. Hook the straps to the cargo net hook in the
rear of the vehicle.
3. Flip the D
-ring so it is pointing outward.
4. Open the convenience/cargo tray cover.
5. Stand the full
-size tire up, in the tray against the
back of the seat with the valve stem pointing out.
6. Remove the J
-hook and the wing nut from the back
of the jack access door. Assemble the wing nut and
the J
-hook.
7. Install the wing nut and the J
-hook to the D-ring
through the center hole of the tire.
8. Tighten the wing nut to secure the tire to the seatback.
Push and pull on the tire to make sure the tire
is secure and does not move.
9. Put back all tools as they were stored in the jack
storage compartment and put the compartment
cover back on.
To put the cover back on, slip the tabs on the side of the
cover into the cover opening. Push the cover in place
and push down the tabs on the cover so that it rests in
the groove. This secures the cover in place.
Page 342 of 455
5-39
Storing the Flat Tire with the Stowable Seatback
Folded Flat
A. Stowable Seatback
B. Full
-Size Tire
C. Wing NutD. J
-Hook
E. D
-Ring1. Fold the seatback down and flip the D
-ring up.
2. Lay the tire on the seatback with the valve stem
pointing up with the center hole of the tire over
the D
-ring.
3. Remove the J
-hook and the wing nut from the back
of the jack access door. Assemble the wing nut and
the J
-hook.
4. Install the wing nut and the J
-hook to the D-ring
through the center hole of the tire.
5. Tighten the wing nut to secure the tire to
the seatback.
Push and pull on the tire to make sure the tire
is secure and does not move.
6. Put back all tools as they were stored in the jack
storage compartment and put the compartment
cover back on.
To put the cover back on, slip the tabs on the side of the
cover into the cover opening. Push the cover in place
and push down the tabs on the cover so that it rests in
the groove. This secures the cover in place.
Page 343 of 455

5-40
Compact Spare Tire
Although the compact spare tire was fully inflated
when your vehicle was new, it can lose air after a time.
Check the inflation pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on your vehicle, you
should stop as soon as possible and make sure your spare
tire is correctly inflated. The compact spare is made to
perform well at speeds up to 65 mph (105 km/h) for
distances up to 3,000 miles (5 000 km), so you can
finish your trip and have your full
-size tire repaired or
replaced where you want. Of course, it's best to replace
your spare with a full
-size tire as soon as you can.
Your spare will last longer and be in good shape in case
you need it again.
NOTICE:
When the compact spare is installed, don't take
your vehicle through an automatic car wash with
guide rails. The compact spare can get caught on
the rails. That can damage the tire and wheel,
and maybe other parts of your vehicle.
Don't use your compact spare on other vehicles.
And don't mix your compact spare tire or wheel with
other wheels or tires. They won't fit. Keep your spare
tire and its wheel together.
NOTICE:
Tire chains won't fit your compact spare. Using
them can damage your vehicle and can damage
the chains too. Don't use tire chains on your
compact spare.
Page 387 of 455

6-42
Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service, see
your Buick Warranty booklet for details.
CAUTION:
Poorly maintained and improperly used tires
are dangerous.
Overloading your tires can cause
overheating as a result of too much friction.
You could have an air
-out and a serious
accident. See ªLoading Your Vehicleº in
the Index.
CAUTION: (Continued)
CAUTION: (Continued)
Underinflated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
Overinflated tires are more likely to be
cut, punctured or broken by a sudden
impact
-- such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.
Page 388 of 455

6-43 Inflation -- Tire Pressure
The Certification/Tire label, which is on the rear edge of
the driver's door, shows the correct inflation pressures
for your tires when they're cold. ªColdº means your
vehicle has been sitting for at least three hours or driven
no more than 1 mile (1.6 km).
NOTICE:
Don't let anyone tell you that underinflation or
overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can
get the following:
Too much flexing
Too much heat
Tire overloading
Bad wear
Bad handling
Bad fuel economy
NOTICE: (Continued)
NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:
Unusual wear
Bad handling
Rough ride
Needless damage from road hazards
When to Check
Check your tires once a month or more.
Don't forget your compact spare tire. It should be
at 60 psi (420 kPa).
How to Check
Use a good quality pocket
-type gage to check tire
pressure. You can't tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out dirt
and moisture.