2007 BUICK LACROSSE spare

One key is used for the
ignition and all locks.
When a new vehicle is delivered, the key has a
bar-coded key tag. This tag may be removed
by your dealer before it is delivered.
The vehicle has the PASS-Key
®III vehicle theft
system. The key has a transponder in the
key head that matches a decoder in the vehicle’sinstrument panel. The key will have PK3 stamped
on it. If a replacement key or an additional key
is needed, it must be purchased from your dealer
or certied locksmith.
Any new PASS-Key
®III key must be programmed
before it will start the vehicle. SeePASS-Key®
III on page 106for more information on
programming a new key.
In an emergency, contact Roadside Assistance.
SeeRoadside Assistance Program on page 484
for more information.
Notice:If you ever lock your keys in your
vehicle, you may have to damage the vehicle
to get in. Be sure you have spare keys.
88

Windshield Wiper Blade Replacement....... 401
Tires............................................................ 402
Tire Sidewall Labeling............................... 403
Tire Terminology and Denitions............... 406
Ination - Tire Pressure............................. 409
Tire Pressure Monitor System................... 411
Tire Inspection and Rotation...................... 416
When It Is Time for New Tires.................. 417
Buying New Tires...................................... 418
Different Size Tires and Wheels................ 420
Uniform Tire Quality Grading..................... 421
Wheel Alignment and Tire Balance............ 422
Wheel Replacement.................................. 422
Tire Chains............................................... 424
If a Tire Goes Flat.................................... 425
Changing a Flat Tire................................. 426
Removing the Spare Tire and Tools.......... 427
Removing the Flat Tire and Installing
the Spare Tire....................................... 429
Storing a Flat or Spare Tire and Tools...... 435
Compact Spare Tire.................................. 437Appearance Care........................................ 438
Cleaning the Inside of Your Vehicle.......... 438
Fabric/Carpet............................................. 440
Leather...................................................... 441
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 441
Care of Safety Belts.................................. 442
Weatherstrips............................................ 442
Washing Your Vehicle............................... 442
Cleaning Exterior Lamps/Lenses................ 443
Finish Care............................................... 443
Windshield and Wiper Blades.................... 444
Aluminum or Chrome-Plated Wheels......... 444
Tires......................................................... 445
Sheet Metal Damage................................. 445
Finish Damage.......................................... 446
Underbody Maintenance............................ 446
Chemical Paint Spotting............................ 446
Vehicle Care/Appearance Materials............ 447
Section 5 Service and Appearance Care
338

Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.(A) Tire Size:The tire size is a combination of
letters and numbers used to dene a particular
tire’s width, height, aspect ratio, construction type,
and service description. See the “Tire Size”
illustration later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
(C) DOT (Department of Transportation):
The Department of Transportation (DOT) code
indicates that the tire is in compliance with the
U.S. Department of Transportation Motor Vehicle
Safety Standards.
(D) Tire Identication Number (TIN):The letters
and numbers following DOT (Department of
Transportation) code is the Tire Identication
Number (TIN). The TIN shows the manufacturer
and plant code, tire size, and date the tire
was manufactured. The TIN is molded onto both
sides of the tire, although only one side may
have the date of manufacture.
Passenger (P-Metric) Tire Example
403

(E) Tire Ply Material:The type of cord and
number of plies in the sidewall and under
the tread.
(F) Uniform Tire Quality Grading (UTQG):
Tire manufacturers are required to grade
tires based on three performance factors:
treadwear, traction, and temperature resistance.
For more information seeUniform Tire Quality
Grading on page 421.
(G) Maximum Cold Ination Load Limit:
Maximum load that can be carried and the
maximum pressure needed to support that load.
(A) Temporary Use Only:The compact spare
tire or temporary use tire has a tread life of
approximately 3,000 miles (5 000 km) and should
not be driven at speeds over 65 mph (105 km/h).
The compact spare tire is for emergency use
when a regular road tire has lost air and gone at.
If your vehicle has a compact spare tire, see
Compact Spare Tire on page 437andIf a Tire
Goes Flat on page 425.
Compact Spare Tire Example
404

(B) Tire Ply Material:The type of cord and
number of plies in the sidewall and under the tread.
(C) Tire Identication Number (TIN):The letters
and numbers following the DOT (Department of
Transportation) code is the Tire Identication
Number (TIN). The TIN shows the manufacturer
and plant code, tire size, and date the tire
was manufactured. The TIN is molded onto both
sides of the tire, although only one side may have
the date of manufacture.
(D) Maximum Cold Ination Load Limit:
Maximum load that can be carried and the
maximum pressure needed to support that load.
(E) Tire Ination:The temporary use tire or
compact spare tire should be inated to 60 psi
(420 kPa). For more information on tire pressure
and ination seeInation - Tire Pressure on
page 409.
(F) Tire Size:A combination of letters and
numbers dene a tire’s width, height, aspect ratio,
construction type, and service description. The
letter T as the rst character in the tire size means
the tire is for temporary use only.(G) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
Tire Size
The following illustration shows an example of a
typical passenger vehicle tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P
as the rst character in the tire size means a
passenger vehicle tire engineered to standards
set by the U.S. Tire and Rim Association.
(B) Tire Width:The three-digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
405

A Tire and Loading Information label is attached
to the vehicle’s center pillar (B-pillar). This
label shows your vehicle’s original equipment tires
and the correct ination pressures for your tires
when they are cold. The recommended cold
tire ination pressure, shown on the label, is the
minimum amount of air pressure needed to
support your vehicle’s maximum load carrying
capacity.
For additional information regarding how much
weight your vehicle can carry, and an example
of the Tire and Loading Information label,
seeLoading Your Vehicle on page 319. How you
load your vehicle affects vehicle handling and
ride comfort. Never load your vehicle with more
weight than it was designed to carry.
When to Check
Check your tires once a month or more. Do not
forget to check the compact spare tire, it should be
at 60 psi (420 kPa). For additional information
regarding the compact spare tire, seeCompact
Spare Tire on page 437.
How to Check
Use a good quality pocket-type gage to check
tire pressure. You cannot tell if your tires are
properly inated simply by looking at them. Radial
tires may look properly inated even when they
are under-inated. Check the tire’s ination
pressure when the tires are cold. Cold means your
vehicle has been sitting for at least three hours
or driven no more than 1 mile (1.6 km).
Remove the valve cap from the tire valve stem.
Press the tire gage rmly onto the valve to
get a pressure measurement. If the cold tire
ination pressure matches the recommended
pressure on the Tire and Loading Information
label, no further adjustment is necessary. If the
ination pressure is low, add air until you reach
the recommended amount.
If you overll the tire, release air by pushing on
the metal stem in the center of the tire valve.
Re-check the tire pressure with the tire gage.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping out
dirt and moisture.
410

Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses
radio and sensor technology to check tire pressure
levels. TPMS sensors are mounted onto each
tire and wheel assembly, except for the spare tire.
The TPMS sensors monitor the air pressure in
your vehicle’s tires and transmit tire pressure
readings to a receiver located in the vehicle.
When a low tire pressure condition is detected,
the TPMS illuminates the low tire pressure
warning light, located in the instrument panel
cluster. If your vehicle has the uplevel Driver
Information Center (DIC), a warning message to
check the pressure in a specic tire displays at
the same time the low tire pressure warning light
comes on. The low tire pressure warning light
and the DIC warning message CHECK TIRE
PRESSURE come on at each ignition cycle
until the tires are inated to the correct
ination pressure. Vehicles that have the
uplevel DIC buttons can also check tire
pressure levels by pressing the gages button.For additional information and details about the
DIC operation and displays seeDIC Operation and
Displays on page 200andDIC Warnings and
Messages on page 208.
During cooler weather conditions, the low tire
pressure warning light and the DIC warning
message, if your vehicle has this feature, may
come on when the vehicle is rst started, and then
turn off as you start to drive. This could be an
early indicator that the air pressure in the tire(s)
are getting low and need to be inated to the
proper pressure.
Each tire, including the spare (if provided), should
be checked monthly when cold and inated
to the ination pressure recommended by the
vehicle manufacturer on the vehicle placard or tire
ination pressure label. (If your vehicle has tires
of a different size than the size indicated on
the vehicle placard or tire ination pressure label,
you should determine the proper tire ination
pressure for those tires.)
411

Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your
tires as soon as possible and check wheel
alignment. Also check for damaged tires or wheels.
SeeWhen It Is Time for New Tires on page 417
andWheel Replacement on page 422for
more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The
rst rotation is the most important. SeeScheduled
Maintenance on page 462.When rotating your tires, always use the correct
rotation pattern shown here.
Do not include the compact spare tire in your tire
rotation.
After the tires have been rotated, adjust the front
and rear ination pressures as shown on the
Tire and Loading Information label.
Make certain that all wheel nuts are properly
tightened. See “Wheel Nut Torque” under
Capacities and Specications on page 454.
416