wheel size OLDSMOBILE SILHOUETTE 2003 Owners Manual

Storage Areas
Your vehicle's large carrying capacity can store many
items.
If you have the extended wheelbase version, you
can carry things as large as a
4' x 8' piece of plywood.
You can also use the floor pins that are used to
attach the seats, to secure larger loads.
Glove Box
Your vehicle has a glove box below the instrument
panel.
To open the glove box, lift the latch release.
The glove box door has a detent to prevent the door
from lowering too far. Open the glove box until the door
is partway open, then pull the door down if you need
it fully open. To close the glove box, the door must
be pushed up past the detent.
Cupholder(s)
There are cupholders located below the center
instrument panel switchbank. The cupholders have a
removable liner for larger size cups and for cleaning
the cupholders.
To use the cupholders, simply pull out the tray.
Keep the tray stowed in when not in use. Your
vehicle also has cupholders on the bottom inboard
side of the second row driver's side captain's chairs
and the seatbacks have cupholders that can be
used when the seatbacks are folded forward.
Compact Overhead Console
The front overhead console includes two reading lamps,
a storage compartment and a switchbank.
2-54

All-Wheel Drive Disable Warning
Message
AWD
DISABLE
I I I I
United States Canada
Your vehicle may have this message. If
it does, it will
come on when there is a spare tire on the vehicle, or
when the anti-lock brake system warning light comes on,
or when the rear differential fluid is overheating. This
message will go out when the differential fluid cools.
The all-wheel-drive system will be disabled until the
compact spare tire is replaced by a full-size tire.
If the warning message is still on after putting on the
tull-slze tire, you need to reset the warning message.
To reset the warning message, turn the ignition
off
and then back on again. If the message stays on,
see your dealer right away. See
All-Wheel Drive
(A WD)
System on page 4-1 I for more information.
Low Fuel Warning Message
I
United States Canada
If your fuel is low, the warning message will come on
and stay on until you add fuel.
If the warning message is still on after adding fuel,
you need to reset the warning message. To reset the
warning message, turn the ignition off and then back on.
If the message stays on, see your dealer.
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After the tires have been rotated, adjust the front and rear
inflation pressures as shown on the Certification/Tire
label. Make certain that all wheel nuts are properly
tightened. See “Wheel Nut Torque” under
Capacities and
Specifications on page 5-
103.
-3ust or dirt on a wheel, or on the parts to
which
it is fastened, can make wheel nuts
become loose after a 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 you need to, to
get all the rust or dirt
off. See “Changing a Flat
Tire”
in the Index.
When It Is Time for New Tires
One way to tell when it’s
time for new tires is to
check the treadwear
indicators, which will
appear when your tires
have only
1/16 inch
(1.6 mm) or less of tread
remaining.
You need a new tire
if any of the following statements
are true:
You can see the indicators at three or more places
You can see cord or fabric showing through the
The tread or sidewall is cracked, cut or snagged
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
around the tire.
tire’s rubber. deep enough to show cord or fabric.
__ can’t be repaired well because of the size or
location
of the damage.
5-63

Buying New Tires
To find out what kind and size of tires you need, look at
the Certificationflire label.
The tires installed on your vehicle when it was new had a
Tire Petformance Criteria Specification (TPC Spec)
number on each tire’s sidewall. When you get new tires,
get ones with that same TPC Spec number. That way
your vehicle will continue to have tires that are designed
to give proper endurance, handling, speed rating,
traction, ride and other things during normal service on
your vehicle. If your tires have an all-season tread design,
the TPC number will be followed by an
“MS” (for mud
and snow).
If you ever replace your tires with those not having a
TPC Spec number, make sure they are the same
size, load range, speed rating and construction type
(bias, bias-belted or radial) as your original tires. Mixing tires coul-.
Lause you to lose control
while driving. If you mix tires of different sizes
or types (radial and bias-belted tires), the
vehicle may not handle properly, and you
could have a crash. Using tires
of different
sizes may also cause damage to your vehicle.
Be sure to use the same size and type tires on
all wheels. It’s
all right to drive with your
compact spare temporarily,
it was developed
for use on your vehicle. See “Compact Spare
Tire”
in the index.
If you use bias-ply
1 1s on your vehicle, the
wheel rim flanges 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.
5-64

If you need to replace any of your wheels, wheel bolts or
wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous.
It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
I
Notice: The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height,
vehicle ground clearance and tire or tire chain
clearance to the body and chassis.
See
Changing a Flat Tire on page 5-70 for more
information.
Used Replacement WI els
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used
or how far it’s been driven. It could fail suddenly
and cause a crash. If you have to replace a
wheel, use a new
GM original equipment wheel.
Tire Chains
Notice: Use tire chains only where legal and only
when you must. Use only SAE Class
“S” type chains
that are the proper size for your tires. Install them
on the front tires and tighten them as tightly
as possible with the ends securely fastened.
Drive slowly and follow the chain manufacturer’s
your vehicle, stop and retighten them. If the contact continues, slow down until
it stops. Driving too
fast or spinning the wheels with chains on will
damage your vehicle.
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5-67

3. To remove the compact spare tire from the cable,
tilt the retainer at the end
of the cable so it can be
pulled up through the wheel opening.
-. If your vehicle is an all-wheel-drive vehicle, after
removing the compact spare tire turn the wrench
clockwise to raise the cable back up.
On an AWD vehicle, you can not store
a full-size
tire under the vehicle. It should be stowed inside the
vehicle by the cable provided. See “Storing the
Flat Tire on an All-Wheel-Drive Vehicle” later
in
this section.
If you have a front-wheel-drive vehicle, the hoist is
used to store a full-size or a flat road tire under
the vehicle. See “Storing the Spare Tire and
Tools”
and “Storing the Flat Tire on a Front-Wheel-Drive
Vehicle” later
in this section.
If the compact spare tire will not lower, check under the
vehicle to see
if the tire is hanging loose and the cable
end and spring under the wheel plate are missing. If
so,
the secondary latch system is engaged. See “Secondary
Latch System” later
in this section.
To continue changing the flat tire see “Removing the
Flat Tire and Installing the Spare Tire” later in this
section.
5-73

Secondary Latch System
Your vehicle may have an underbody mounted tire hoist
assembly equipped with a secondary latch system.
It‘s designed to stop a tire from suddenly falling off your
vehicle
if the cable holding the spare tire is damaged.
For the secondary latch to work, the tire must be stowed
with the valve stem pointing down.
Front-wheel-drive vehicles use the underbody tire hoist
assembly to store either the compact spare or a flat
road tire. See “Storing a Flat or Spare Tire and
Tools”
in the Index for instructions on storing the spare or
flat tire correctly.
If your vehicle is equipped with all-wheel-drive, the
underbody tire hoist assembly stores only the compact
spare tire. See “Storing the Spare Tire and Tools”
later in this section for instructions. To store a flat
full-size tire correctly, see “Storing the Flat Tire
on
an All-Wheel-Drive Vehicle” later in this section. Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly
and you and others could get hurt. Read and
follow the instructions listed below.
To release the spare tire from the secondary latch,
do the
f .. )wing:
Someone standing too close during the procedure could be injured by the jack.
If the
spare tire does not slide
off the jack completely,
make sure no one is behind you or on either
side of you as you pull the jack out from
the spare.
5-74

To put the cover back on, line up the tabs on the right
of the cover with the slots in the cover opening. Push the
cover in place and push down the tab
so that it rests
in the groove. This secures the cover in place.
B
Store the center cap or the plastic “bolt-on” wheel
covers until a full size tire is put back on the vehicle.
When you replace the compact spare with a full-size tire,
reinstall the bolt-on wheel covers or the center cap.
Tighten them “hand tight” over the wheel nuts, using the
folding wrench.
Storing the Flat Tire on a Front-Wheel
Drive Vehicle
Follow the procedure for storing a spare tire listed
previously.
A. Strap
9. Bag and Tools
C. Jack
5-83

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.
All-Wheel Drive
After installing a compact spare tire on a vehicle with
all-wheel drive you will need to drive with light to
moderate acceleration, for
10 seconds, in a straight line.
This action will allow the vehicle to detect the compact
spare tire and disable the all-wheel drive system.
The AWD DISABLE message will come on indicating
that the all-wheel drive system is
off. You may detect
a slight pull during this time, but this is normal.
Notice: You may damage your vehicle’s all-wheel
drive system if your vehicle
is driven for an extended
period with a compact spare tire installed and
the all-wheel drive system in operation. See “All-Wheel Drive System’’ and “AWD Disable
Warning Message’’
in the Index for more information.
5-86