wheel size BUICK RANDEZVOUS 2007 Owner's Manual

Windshield Wiper Blade Replacement....... 404
Tires............................................................ 406
Tire Sidewall Labeling............................... 407
Tire Terminology and Denitions............... 410
Ination - Tire Pressure............................. 413
Check Tire Pressure System..................... 414
Tire Inspection and Rotation...................... 416
When It Is Time for New Tires.................. 418
Buying New Tires...................................... 418
Different Size Tires and Wheels................ 420
Uniform Tire Quality Grading..................... 420
Wheel Alignment and Tire Balance............ 422
Wheel Replacement.................................. 422
Tire Chains............................................... 424
Accessory Inator...................................... 425
If a Tire Goes Flat.................................... 427
Changing a Flat Tire................................. 428
Removing the Spare Tire and Tools.......... 429
Removing the Flat Tire and Installing
the Spare Tire....................................... 436
Secondary Latch System........................... 441
Storing a Flat or Spare Tire and Tools.......... 444
Compact Spare Tire.................................. 450Appearance Care........................................ 451
Cleaning the Inside of Your Vehicle.......... 451
Fabric/Carpet............................................. 453
Leather...................................................... 454
Instrument Panel, Vinyl, and
Other Plastic Surfaces........................... 454
Care of Safety Belts.................................. 455
Weatherstrips............................................ 455
Washing Your Vehicle............................... 455
Cleaning Exterior Lamps/Lenses................ 456
Finish Care............................................... 456
Windshield, Backglass, and
Wiper Blades......................................... 457
Aluminum or Chrome-Plated Wheels......... 457
Tires......................................................... 458
Sheet Metal Damage................................. 458
Finish Damage.......................................... 459
Underbody Maintenance............................ 459
Chemical Paint Spotting............................ 459
Vehicle Care/Appearance Materials............ 460
Section 5 Service and Appearance Care
352

(B) Tire Width:The three-digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
(C) Aspect Ratio:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire’s sidewall is 60 percent as high as it
is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The
letter R means radial ply construction; the letter D
means diagonal or bias ply construction; and the
letter B means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description:These characters
represent the load range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certied to carry a
load. Speed ratings range from A to Z.Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission/
transaxle, power steering, power brakes, power
windows, power seats, and air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
Bead:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
410

If the tires have an all-season tread design, the
TPC spec number will be followed by an MS
for mud and snow. SeeTire Sidewall Labeling
on page 407for additional information.
{CAUTION:
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes, brands, or types (radial and
bias-belted tires), the vehicle may not
handle properly, and you could have a
crash. Using tires of different sizes,
brands, or types may also cause damage to
your vehicle. Be sure to use the correct
size, brand, and type of tires on all wheels.
It is all right to drive with your compact
spare temporarily, as it was developed for
use on your vehicle. SeeCompact Spare
Tire on page 450.
{CAUTION:
If you use bias-ply tires on your vehicle,
the wheel rim anges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make sure
they are the same size, load range, speed rating,
and construction type (radial and bias-belted tires)
as your vehicle’s original tires.
Your vehicle’s original equipment tires are listed on
the Tire and Loading Information Label. This label is
attached to the vehicle’s center pillar (B-pillar).
SeeLoading Your Vehicle on page 332, for more
information about the Tire and Loading Information
Label and its location on your vehicle.
419

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 418and
Accessories and Modications on page 354
for 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.
420

Tire Chains
{CAUTION:
Do not use tire chains. There is not enough
clearance. Tire chains used on a vehicle
without the proper amount of clearance
can cause damage to the brakes,
suspension, or other vehicle parts. The
area damaged by the tire chains could
cause you to lose control of your vehicle
and you or others may be injured in a
crash.
CAUTION: (Continued)
CAUTION: (Continued)
Use another type of traction device only if
its manufacturer recommends it for use
on your vehicle and tire size combination
and road conditions. Follow that
manufacturer’s instructions. To help avoid
damage to your vehicle, drive slowly,
readjust or remove the device if it is
contacting your vehicle, and do not spin
the wheels. If you do nd traction devices
that will t, install them on the front tires
for front-wheel-drive vehicles. If your
vehicle has all-wheel drive, install traction
devices on either the front tires or all four
tires, but never on the rear tires only.
424

A. Hoist Shaft
B. Folding Wrench
C. Hoist AssemblyD. Retainer
E. Compact Spare Tire
1. Flip the rear cargo area carpet cut out to
expose the hoist shaft.
2. Attach the folding wrench into the hoist shaft.
3. Turn the folding wrench counterclockwise
to lower the spare tire to the ground.
Continue turning the wrench until the spare
tire can be pulled out from under the vehicle.4. Tilt the retainer and slip it through the wheel
opening to remove the spare tire from the
cable.
5. Turn the wrench clockwise to raise the cable
back up after removing the spare tire.
Do not store a full-size or a at road tire under
the vehicle. SeeStoring a Flat or Spare Tire
and Tools on page 444.
To continue changing the at tire, seeRemoving
the Flat Tire and Installing the Spare Tire on
page 436.
431

5. Tilt the retainer and slip it through 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 at road tire under
the vehicle. SeeStoring a Flat or Spare Tire
and Tools on page 444.
To continue changing the at tire, seeRemoving
the Flat Tire and Installing the Spare Tire on
page 436.If the spare tire will not lower, the secondary latch
may be engaged causing the tire not to lower.
434

9. Tilt the retainer and slip it through the wheel
opening when the spare tire has been
completely lowered.
10. Turn the folding wrench clockwise to raise the
cable back up if the cable is hanging.
Have the hoist assembly inspected as soon as
you can. You will not be able to store a spare tire
using the hoist assembly until it has been
repaired or replaced.Storing a Flat or Spare Tire and Tools
Storing the Flat Tire (Vehicles without
Stowable Seat and without Rear
Convenience Center)
A. D-Ring
B. Wing Nut
C. J-HookD. Valve Stem
E. Full-Size Tire
1. 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.
444

For vehicles with aluminum wheels, remove
the center 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 oor.
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.
Slip the tabs on the side of the compartment
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.Storing the Flat Tire (Vehicles
with a Rear Convenience Center)
A. D-Ring
B. Rear Convenience
Center
C. Wing Nut
D. J-HookE. Full-Size Tire
F. Cap on Bottom of
Storage
Compartment
1. Open the center storage compartment door of
the rear convenience center.
2. Remove the cap on the bottom of the storage
compartment and ip the D-ring up.
445

9. Make sure the tire is stored securely. Push,
pull (A), and then try to turn (B) the tire. If the
tire moves, use the folding wrench to tighten
the cable.
10. 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.When you replace the compact spare with a
full-size tire, reinstall the bolt-on wheel covers or the
center cap, whichever your vehicle has. Tighten
them hand tight over the wheel nuts, using the
folding wrench.
Compact Spare Tire
Although the compact spare tire was fully inated
when your vehicle was new, it can lose air after a
time. Check the ination 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 inated. 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 nish 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.
450