2006 BUICK LACROSSE tire size

{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. See
Compact Spare Tire on page 5-83.
{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 4-31, for more
information about the Tire and Loading Information
Label and its location on your vehicle.
5-67

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 5-66andAccessories
and Modications 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.
5-68

Tire Chains
{CAUTION:
If your vehicle has P225/55R17 size tires,
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.
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 your wheels.
If you do nd traction devices that will t,
install them on the front tires.Notice:If your vehicle has a tire size other than
P225/55R17 size tires, 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 instructions. If you can hear the
chains contacting 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.
If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle’s tires properly.
If air goes out of a tire, it is much more likely to leak
out slowly. But if you should ever have a blowout, here
are a few tips about what to expect and what to do:
If a front tire fails, the at tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel rmly.
Steer to maintain lane position, and then gently brake
to a stop well out of the traffic lane.
A rear blowout, particularly on a curve, acts much
like a skid and may require the same correction you
would use in a skid. In any rear blowout remove
your foot from the accelerator pedal.
5-72

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.
After the compact spare tire has been installed on the
vehicle, store the at tire in the trunk.
When storing a full-size tire, use the extension with the
protector, located in the foam holder, to help avoid
wheel surface damage.To store a full-size tire, do the following:
1. Install the tools in their original location in the
trunk area and secure.
2. Place the tire valve stem facing down and
the protector/guide placed through a wheel
bolt hole.
3. Remove the protector and attach the retainer
securely
4. Store the cover as far forward as possible.
When storing a compact spare tire in the trunk, put the
protector back in the foam holder.
The compact spare is for temporary use only. Replace
the compact spare tire with a full-size tire as soon
as you can. SeeCompact Spare Tire on page 5-83.
Use the following as a guide for storing the compact
spare tire and tools.
5-82

A. Cover
B. Wing Nut
C. Compact Spare Tire
D. Wing Nut
E. Jack
F. Wheel Wrench
G. Extension Protector
H. Foam Holder
I. Bolt ScrewCompact Spare Tire
Although the compact spare tire was fully inated
when the 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 the vehicle, stop
as soon as possible and make sure the 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 the full-size tire repaired or replaced at your
convenience. Of course, it is best to replace the spare
with a full-size tire as soon as possible. The spare
tire will last longer and be in good shape in case it is
needed again.
Notice:When the compact spare is installed,
do not 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.
Do not use the compact spare on other vehicles.
And do not mix the compact spare tire or wheel with
other wheels or tires. They will not t. Keep the
spare tire and its wheel together.
Notice:Tire chains will not t your compact spare.
Using them can damage your vehicle and can
damage the chains too. Do not use tire chains
on your compact spare.
5-83

Shifting Into Park (P).......................................2-31
Shifting Out of Park (P)...................................2-33
Shoulder Belt Height Adjuster...........................1-22
Signals, Turn and Lane-Change.......................... 3-8
Spare Tire
Compact....................................................5-83
Installing....................................................5-76
Removing...................................................5-74
Storing.......................................................5-82
Specications, Capacities.................................5-98
Speedometer..................................................3-33
Split Folding Rear Seat..................................... 1-8
StabiliTrak
®System.........................................4-11
Starting Your Engine.......................................2-24
Steering........................................................4-11
Steering Wheel Comfort Controls......................3-31
Steering Wheel Controls, Audio.......................3-126
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-46
Convenience Net.........................................2-46
Cupholder(s)...............................................2-45
Glove Box..................................................2-44
Stuck in Sand, Mud, Ice, or Snow.....................4-30
Sun Visors.....................................................2-18
Sunroof.........................................................2-47
T
Tachometer....................................................3-33
Taillamps
Turn Signal, Sidemarker, Stoplamps, and
Back-Up Lamps.......................................5-54
TCS Warning Light..........................................3-40
Theater Dimming............................................3-17
Theft-Deterrent, Radio....................................3-126
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
PASS-Key
®III .............................................2-20
PASS-Key®III Operation..............................2-21
Tilt Wheel........................................................ 3-6
Tires.............................................................5-57
Aluminum or Chrome-Plated Wheels,
Cleaning.................................................5-89
Buying New Tires........................................5-66
Chains.......................................................5-72
Changing a Flat Tire....................................5-73
Cleaning....................................................5-89
Compact Spare Tire.....................................5-83
Different Size..............................................5-68
If a Tire Goes Flat.......................................5-72
Ination - Tire Pressure................................5-63
Inspection and Rotation................................5-64
12

W
Warning Lights, Gages and Indicators................3-31
Warnings
DIC Warnings and Messages........................3-59
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer Fluid, Low Warning Light......................3-47
Wheels
Alignment and Tire Balance..........................5-70
Different Size..............................................5-68
Replacement...............................................5-70
Where to Put the Restraint...............................1-40
Windows.......................................................2-16
Power........................................................2-17Windshield
Replacement...............................................5-56
Washer........................................................ 3-9
Washer Fluid..............................................5-38
Wiper Blade Replacement.............................5-56
Wiper Blades, Cleaning................................5-88
Wiper Fuses...............................................5-93
Wipers......................................................... 3-9
Winter Driving................................................4-26
X
XM™ Satellite Radio Antenna System..............3-130
Y
Your Vehicle and the Environment....................... 6-2
14